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MT2523 Series Reference Manual
Version:
1.1
Release date:
14 December 2016
© 2015 - 2018 Airoha Technology Corp.
This document contains information that is proprietary to Airoha Technology Corp. (“Airoha”) and/or its licensor(s). Airoha cannot grant you
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CLAIMS RELATING TO OR ARISING OUT OF THIS DOCUMENT OR ANY USE OR INABILITY TO USE THEREOF. Specifications contained herein are
subject to change without notice.
MT2523 Series Reference Manual
Document Revision History
Revision
Date
Description
0.1
11 December 2015
Initial draft.
0.2
22 February 2016
Review completed.
0.3
23 June 2016
Update G2D, AFE, MMSYS.
1.0
31 Auguest 2016
Update MMSYS.
1.1
14 December 2016
Add PMU.
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MT2523 Series Reference Manual
Table of contents
1.
Documentation General Conventions .................................................................................................... 1
1.1.
1.2.
Abbreviations for Control Modules .................................................................................................... 1
Abbreviations for Registers ................................................................................................................ 2
2.
Bus Architecture and Memory Map ....................................................................................................... 3
3.
External Interrupt Controller ................................................................................................................. 8
3.1.
3.2.
4.
Direct Memory Access ..........................................................................................................................20
4.1.
4.2.
5.
General Description .......................................................................................................................... 85
Register Definition ............................................................................................................................ 89
Inter-Integrated Circuit Controller ........................................................................................................97
9.1.
9.2.
10.
General Description .......................................................................................................................... 75
Register Definition ............................................................................................................................ 78
Serial Peripheral Interface Slave Controller ..........................................................................................85
8.1.
8.2.
9.
General Description .......................................................................................................................... 56
Register Definition ............................................................................................................................ 60
Serial Peripheral Interface Master Controller .......................................................................................75
7.1.
7.2.
8.
General Description .......................................................................................................................... 44
Register Definitions .......................................................................................................................... 44
Universal Asynchronous Receiver Transmitter ......................................................................................56
6.1.
6.2.
7.
General Description .......................................................................................................................... 20
Register Definition ............................................................................................................................ 24
Real Time Clock.....................................................................................................................................44
5.1.
5.2.
6.
General Description ............................................................................................................................ 8
Register Definition ............................................................................................................................ 10
General Description .......................................................................................................................... 97
Register Definition .......................................................................................................................... 100
SD Memory Card Controller ................................................................................................................110
10.1. General Description ........................................................................................................................ 110
10.2. Register Definition .......................................................................................................................... 112
11.
USB2.0 High-Speed Device Controller .................................................................................................142
11.1. General Description ........................................................................................................................ 142
11.2. Register Definition .......................................................................................................................... 145
12.
General Purpose Timer .......................................................................................................................210
12.1. Introduction .................................................................................................................................... 210
12.2. Register Definition .......................................................................................................................... 212
13.
Pulse Width Modulation .....................................................................................................................233
13.1. General Description ........................................................................................................................ 233
13.2. Register Definition .......................................................................................................................... 234
14.
Keypad Scanner ..................................................................................................................................236
14.1. General Description ........................................................................................................................ 236
14.2. Register Definition .......................................................................................................................... 242
15.
General Purpose Counter....................................................................................................................246
15.1. General Description ........................................................................................................................ 246
15.2. Register Definition .......................................................................................................................... 247
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MT2523 Series Reference Manual
16.
Auxiliary ADC Unit ..............................................................................................................................251
16.1. General Description ........................................................................................................................ 251
16.2. Register Definition .......................................................................................................................... 252
16.3. Programming Guide ........................................................................................................................ 256
17.
General Purpose DAC..........................................................................................................................257
17.1.
17.2.
17.3.
17.4.
18.
General Description ........................................................................................................................ 257
Register Definition .......................................................................................................................... 257
Programming Guide ........................................................................................................................ 259
Limitations and Important Notes ................................................................................................... 260
Accessory Detector .............................................................................................................................261
18.1. General Description ........................................................................................................................ 261
18.2. Register Definition .......................................................................................................................... 263
19.
True Random Number Generator .......................................................................................................273
19.1. General Description ........................................................................................................................ 273
19.2. Register Definition .......................................................................................................................... 275
19.3. Programming Guide ........................................................................................................................ 278
20.
Audio Front End ..................................................................................................................................279
20.1. General Description ........................................................................................................................ 279
20.2. Register Definition .......................................................................................................................... 281
21.
2D Acceleration ..................................................................................................................................303
21.1.
21.2.
21.3.
21.4.
22.
General Description ........................................................................................................................ 303
Features .......................................................................................................................................... 304
Application Notes ........................................................................................................................... 309
Register Definitions ........................................................................................................................ 311
Multimedia Subsystem Configuration .................................................................................................324
22.1. Introduction .................................................................................................................................... 324
22.2. Block diagram ................................................................................................................................. 324
22.3. Register definition .......................................................................................................................... 325
23.
LCD display .........................................................................................................................................330
23.1. General Description ........................................................................................................................ 330
23.2. LCD registers definition .................................................................................................................. 336
24.
Display Serial Interface (DSI) ...............................................................................................................381
24.1. General Description ........................................................................................................................ 381
24.2. Features .......................................................................................................................................... 381
24.3. Register Definition .......................................................................................................................... 382
25.
Image Resizer .....................................................................................................................................397
25.1. General Description ........................................................................................................................ 397
25.2. Application Notes ........................................................................................................................... 397
25.3. Register Definition .......................................................................................................................... 400
26.
Image Rotator DMA ............................................................................................................................413
26.1. General Description ........................................................................................................................ 413
26.2. Register Definition .......................................................................................................................... 415
27.
General Purpose Inputs/Outputs ........................................................................................................423
27.1. General Description ........................................................................................................................ 423
27.2. IO Pull Up/Down Control Truth Table ............................................................................................. 423
27.3. Register Definition .......................................................................................................................... 426
28.
MT2523 Top Clock Setting ..................................................................................................................567
28.1. MT2523 Clock Scheme ................................................................................................................... 567
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MT2523 Series Reference Manual
28.2. Clock Setting Programming Guide .................................................................................................. 568
29.
Power Management Unit....................................................................................................................585
29.1.
29.2.
29.3.
29.4.
29.5.
29.6.
29.7.
29.8.
Power supply schemes ................................................................................................................... 586
Voltage regulator ............................................................................................................................ 587
Low power mode ............................................................................................................................ 589
Pulse Charger (PCHR) ...................................................................................................................... 589
Power On/Off sequence ................................................................................................................. 592
LED current sink (ISINK) .................................................................................................................. 594
Vibrator driver ................................................................................................................................ 595
PMU AUXADC ................................................................................................................................. 595
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MT2523 Series Reference Manual
Lists of tables and figures
Table 2-1. MT2523 bus connection.........................................................................................................................3
Table 2-2. Top view memory map ..........................................................................................................................3
Table 2-3. Always-on domain peripherals...............................................................................................................4
Table 2-4. Power-down domain peripherals...........................................................................................................5
Table 3-1. External interrupt sources......................................................................................................................9
Table 4-1. Virtual FIFO access ports ......................................................................................................................23
Table 7-1. SPI master controller interface ............................................................................................................76
Table 8-1. SPI slave controller interface................................................................................................................86
Table 8-2. SPI slave command description............................................................................................................87
Table 8-3. SPI slave status description (use RS command to poll SPI slave status) ..............................................87
Table 10-1. Sharing of pins for SD memory card controller ................................................................................111
Table 12-1. Operation mode of GPT ...................................................................................................................210
Table 12-2. Timer feature ...................................................................................................................................210
Table 14-1. 3*3 single key’s order number in COL/ROW matrix ........................................................................236
Table 14-2. 3*3 double key’s order number in COL/ROW matrix ......................................................................236
Table 16-1. AUXADC channel description ...........................................................................................................252
Table 21-1. The 2D engine register mapping ......................................................................................................311
Table 23-1. LCD controller internal state ............................................................................................................332
Table 23-2. LCD TE Ports .....................................................................................................................................348
Table 23-3. WROICON.FORMAT List ...................................................................................................................352
Table 23-4. Layer address alignment constraint .................................................................................................365
Table 26-1. ImageRotator DMA Output Format .................................................................................................413
Table 26-2. Base Address and Buffer Size Restrictions .......................................................................................414
Table 27-1. GPIO v.s. IO type mapping ...............................................................................................................423
Table 29-1. LDO input power plan ......................................................................................................................586
Table 29-2. LDO types and brief specifications ...................................................................................................588
Table 29-3. Application and input range of ADC channels ..................................................................................595
Figure 3-1. Block diagram of external interrupt controller .....................................................................................8
Figure 4-1. Variety data paths of DMA transfers ..................................................................................................20
Figure 4-2. DMA block diagram.............................................................................................................................20
Figure 4-3. Ring buffer and double buffer memory data movement ...................................................................21
Figure 4-4. Unaligned word accesses ....................................................................................................................22
Figure 4-5. Virtual FIFO DMA ................................................................................................................................22
Figure 6-1. Block Diagram of UART .......................................................................................................................57
Figure 7-1. Pin connection between SPI master and SPI slave .............................................................................75
Figure 7-2. SPI transmission formats ....................................................................................................................75
Figure 7-3. Operation flow with or without PAUSE mode ....................................................................................77
Figure 7-4. CS_N de-assert mode ..........................................................................................................................77
Figure 7-5. Block diagram of SPI master controller...............................................................................................77
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MT2523 Series Reference Manual
Figure 8-1. Pin connection between SPI master and SPI slave .............................................................................85
Figure 8-2. SPI transmission formats ....................................................................................................................85
Figure 8-3. SPI slave controller commands waveform ..........................................................................................86
Figure 8-4. SPI slave control flow diagram ............................................................................................................86
Figure 8-5. Config read/write (CR/CW) command format ....................................................................................88
Figure 8-6. Block diagram of SPI slave controller ..................................................................................................89
Figure 10-1. Card detection for SD memory card ...............................................................................................111
Figure 10-2. IO Pinmux setting for MSDC............................................................................................................112
Figure 11-1. Multiple packet RX flow (known size) .............................................................................................143
Figure 11-2. Multiple packet RX flow (unknown size) .........................................................................................144
Figure 11-3. Block diagram .................................................................................................................................145
Figure 12-1. Block diagram of GPT ......................................................................................................................211
Figure 13-1. PWM waveform ..............................................................................................................................233
Figure 13-2. PWM waveform with register values..............................................................................................233
Figure 14-1. 3x3 keypad matrix (9 keys) .............................................................................................................237
Figure 14-2. 3x3 keypad matrix (18 keys) ...........................................................................................................237
Figure 14-3. One key pressed with de-bounce mechanism denoted .................................................................238
Figure 14-4. (a) Two keys pressed, case 1; (b) Two keys pressed, case 2 ...........................................................238
Figure 14-5. Single keypad detection method ....................................................................................................239
Figure 14-6. Brief schematic diagram of double keypad ....................................................................................240
Figure 14-7. Single key case ................................................................................................................................240
Figure 14-8. Row scan .........................................................................................................................................241
Figure 14-9. Column scan ....................................................................................................................................241
Figure 16-1. AUXADC architecture ......................................................................................................................251
Figure 18-1. Suggested accessory detection circuit ............................................................................................261
Figure 18-2. State machine between microphone and hook-switch plug-in/out change ..................................262
Figure 18-3. PWM waveform ..............................................................................................................................262
Figure 18-4. PWM waveform with register value present ..................................................................................265
Figure 18-5. PWM waveform with DEBOUNCE register value present...............................................................267
Figure 19-1. TRNG architecture...........................................................................................................................273
Figure 19-2. H-FIRO architecture ........................................................................................................................274
Figure 19-3. H-RO and H-GARO architecture ......................................................................................................274
Figure 19-4. TRNG operation flow ......................................................................................................................275
Figure 20-1. Block diagram of digital circuits of the audio front-end .................................................................279
Figure 20-2. Timing diagram of Bluetooth application .......................................................................................280
Figure 20-3. Timing diagram of different clock rate Bluetooth application........................................................280
Figure 20-4. EDI Format 1: EIAJ (FMT = 0) ...........................................................................................................281
Figure 20-5. EDI Format 1: I2S (FMT = 1) ............................................................................................................281
Figure 21-1. 2D Engine Block Diagram ................................................................................................................303
Figure 21-2. 2D Engine Coordinates ....................................................................................................................304
Figure 21-3. 2D Engine Clipping Operation .........................................................................................................305
Figure 21-4. Font Drawing Setting ......................................................................................................................306
Figure 21-5. Anti-aliasing Font Diagram ..............................................................................................................307
Figure 21-6. Anti-aliasing Font Example..............................................................................................................308
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MT2523 Series Reference Manual
Figure 21-7. Rectangle Fill with Alpha-Blending Example ...................................................................................308
Figure 21-8. The block diagram of graphic 2D driver interface...........................................................................309
Figure 21-9. DIS_BG example ..............................................................................................................................315
Figure 21-10. Color Replacement Stage ..............................................................................................................318
Figure 21-11. ROI Memory Offset .......................................................................................................................319
Figure 21-12. Image of Different Rotation Angles ..............................................................................................321
Figure 22-1. Multimedia Subsystem Block Diagram ...........................................................................................324
Figure 23-1. LCD Block Diagram ..........................................................................................................................331
Figure 23-2. Two kinds of usages of overlay& PQ can be configured by different settings. ...............................331
Figure 23-3. LCD State Transitions ......................................................................................................................332
Figure 23-4. LCD serial interface read timing diagram ........................................................................................343
Figure 23-5. LCD serial interface read waveform example .................................................................................344
Figure 23-6. LCD serial interface write timing diagram.......................................................................................344
Figure 23-7. LCD serial interface write waveform example ................................................................................345
Figure 23-8. SYNC_MODE = 0 ..............................................................................................................................346
Figure 23-9. LCM Scan Line Timing .....................................................................................................................346
Figure 23-10. TE Scan Line Example ....................................................................................................................347
Figure 23-11. Layers and ROI setting ..................................................................................................................357
Figure 23-12. ROI write to memory setting ........................................................................................................358
Figure 23-13. Layer source RGB format ..............................................................................................................360
Figure 23-14. YUYV422 byte order in memory ...................................................................................................360
Figure 24-1. Pixel Format of RGB888 ..................................................................................................................381
Figure 24-2. Pixel Format of Loosely RGB666 .....................................................................................................382
Figure 24-3. Pixel Format of RGB565 ..................................................................................................................382
Figure 25-1. Image Resizer Overview ..................................................................................................................397
Figure 25-2. Resizer double buffered registers updating and taking effect timing chart ...................................398
Figure 25-3. Resizer interrupt and busy asserting timing chart ..........................................................................398
Figure 25-4. Memory clipping chart ....................................................................................................................410
Figure 26-1. Image Rotator DMA Input Interface ...............................................................................................413
Figure 26-2. Image Rotator DMA Architecture ...................................................................................................413
Figure 26-3. Image Rotator DMA Descriptor Format ..........................................................................................414
Figure 27-1. GPIO block diagram ........................................................................................................................423
Figure 28-1. MT2523 clock scheme ....................................................................................................................568
Figure 29-1. MT2523 series PMU architecture ...................................................................................................585
Figure 29-2. MT2523 series power domain .......................................................................................................587
Figure 29-3. General LDO block diagram ...........................................................................................................588
Figure 29-4. PCHR schematics ............................................................................................................................590
Figure 29-5. Charging control modes .................................................................................................................591
Figure 29-6. Power-on/off control sequence by pressing PWRKEY ...................................................................593
Figure 29-7. Power-on/off control sequence by charger plug in .......................................................................593
Figure 29-8. ISINK block diagram .......................................................................................................................595
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MT2523 Series Reference Manual
1. Documentation General Conventions
1.1.
Abbreviations for Control Modules
Abbreviation
Full name
EINT
External interrupt controller
DMA
Direct memory access
UART
Universal asynchronous receiver transmitter
SPI master
Serial peripheral interface master controller
SPI slave
Serial peripheral interface slave controller
I2C
Inter-integrated circuit interface
MSDC
SD memory card controller
USB
USB 2.0 high-speed device controller
GPT
General purpose timer
PWM
Pulse width modulation
KP Scanner
Keypad scanner
GPCount
General purpose counter
AUXADC
Auxiliary ADC
GPDAC
General purpose DAC
Accdet
Accessory detector
TRNG
True random Number Generator
GPIO
General purpose inputs-outputs
PMU
Power management unit
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MT2523 Series Reference Manual
1.2.
Abbreviations for Registers
Abbreviation
Full name
RW
Read and write
RO
Read only
WO
Write only
RC
Read 1 to clear
WC
Write 1 to clear
RWC
Read or write 1 to clear
FM
Frequency measurement
FRC
Free running counter
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MT2523 Series Reference Manual
2. Bus Architecture and Memory Map
To better support various IOT applications, MT2523 adopts 32-bit multi-AHB matrix to provide low-power, fast and
flexible data operation. Table 2-1 shows the interconnections between bus masters (CM4, four SPI masters, SPI
slave, debug system, Multimedia (MM) system, USB, and three DMAs) and slaves (AO APB peripherals, PD APB
peripherals, TCM, SFC, EMI, MDSYS, BTSYS).
Table 2-1. MT2523 bus connection
Master
ARM
CM4
AO
DMA
PD
DMA
Sensor
DMA
AO APB
Peripherals
●
●
PD APB
Peripherals
●
●
●
TCM
●
●
●
●
EMI
●
●
●
●
SFC
●
●
●
Audio DSP
●
BTSYS
●
Slave
MM
Debug
SYS
SYS
SPI
Master
SPI
Slave
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
●
USB
●
●
●
●
Table 2-2. Top view memory map
Start Address
End Address
Corresponding Module
0x0000_0000
0x03FF_FFFF
EMI
0x0400_0000
0x0400_7FFF
CM4 TCM/cache
0x0400_8000
0x0402_7FFF
CM4 TCM
0x0410_0000
0x041F_FFFF
Boot ROM
0x0800_0000
0x0BFF_FFFF
SFC
0x8000_0000
0x8000_FFFF
Version code
0x8200_0000
0x83FF_FFFF
MDSYS
0xA000_0000
0xA03F_FFFF
PD APB peripherals
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MT2523 Series Reference Manual
Start Address
End Address
Corresponding Module
0xA040_0000
0xA04F_FFFF
MMSYS
0xA080_0000
0xA08F_FFFF
CM4 peripheral
0xA090_0000
0xA09F_FFFF
PD AHB peripherals
0xA200_0000
0xA21F_FFFF
AO APB peripherals
0xA290_0000
0xA29F_FFFF
AO AHB peripherals
0xA300_0000
0xA3FF_FFFF
BTSYS
0xE000_0000
0xE003_FFFF
CM4 private peripheral bus internal
0xE004_0000
0xE00F_FFFF
CM4 private peripheral bus external
Comment
Table 2-3. Always-on domain peripherals
Start Address
Module Description
Bus Interface
Comments
A200_0000
VERSION_CTRL
APB
Mapped to 0x8000_0000
A201_0000
Configuration registers
APB
Clock, power down, version and
reset
A202_0000
General purpose inputs/outputs
APB
A203_0000
Interrupt controller (eint+cirq)
APB
A204_0000
Analog chip interface controller
APB
A205_0000
Reset generation unit
APB
A206_0000
EFUSE
APB
A207_0000
AO DMA controller
APB
A208_0000
INFRA BUS configuration
APB
A209_0000
MIPI_TX_CONFIG
APB
A20A_0000
Configuration Registers
APB
A20B_0000
SEJ
APB
A20C_0000
PSI_MST
APB
A20D_0000
Keypad Scanner
APB
A20E_0000
BTIF
APB
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PLL, CLKSQ, FH, CLKSW and
SIMLS
Clock, 104M
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MT2523 Series Reference Manual
Start Address
Module Description
Bus Interface
A20F_0000
MCU_TOPSM
APB
A210_0000
CM4_TOPSM
APB
A211_0000
CM4_CFG_PRIVATE
APB
A213_0000
GP Counter
APB
A214_0000
GP Timer
APB
A215_0000
I2C_D2D
APB
A216_0000
Pulse width modulation outputs 0
APB
A217_0000
Pulse width modulation outputs 1
APB
A218_0000
Display pulse width modulation
APB
A219_0000
Reserved
APB
A21A_0000
PMU mixedsys
APB
A21B_0000
General purpose DAC
APB
A21C_0000
Analog baseband (ABB) controller
APB
A21D_0000
A-Die configuration registers
APB
A21E_0000
Real-time clock
APB
A21F_0000
ACCDET
APB
A292_0000
AO DMA controller
AHB
Comments
Clock, reset, etc.
AHB slave port of AO DMA
Table 2-4. Power-down domain peripherals
Start Address
Module Description
Bus Interface
A000_0000
DMA controller
APB
A001_0000
TRNG
APB
A002_0000
MS/SD controller 0
APB
A003_0000
MS/SD controller 1
APB
A004_0000
Serial flash
APB
A005_0000
External memory interface
APB
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MT2523 Series Reference Manual
Start Address
Module Description
Bus Interface
A006_0000
DebugSYS APB 0
APB
A007_0000
DebugSYS APB 1
APB
A008_0000
DebugSYS APB 2
APB
A009_0000
DebugSYS APB 3
APB
A00A_0000
DebugSYS APB 4
APB
A00B_0000
DebugSYS APB 5
APB
A00C_0000
DebugSYS APB 6
APB
A00D_0000
UART 0
APB
A00E_0000
UART 1
APB
A00F_0000
UART 2
APB
A010_0000
UART 3
APB
A011_0000
SPI_MASTER 0
APB
A012_0000
SPI_MASTER 1
APB
A013_0000
SPI_MASTER 2
APB
A014_0000
SPI_MASTER 3
APB
A015_0000
SPI_SLAVE
APB
A016_0000
Pulse width modulation outputs 2
APB
A017_0000
Pulse width modulation outputs 3
APB
A018_0000
Pulse width modulation outputs 4
APB
A019_0000
Pulse width modulation outputs 5
APB
A01A_0000
Reserved
APB
A01B_0000
I2C_2
APB
A01C_0000
INFRA MBIST configuration
APB
A01D_0000
Reserved
APB
A01E_0000
Reserved
APB
A01F_0000
Sensor memory
APB
A020_0000
Reserved
APB
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Start Address
Module Description
Bus Interface
A021_0000
I2C_0
APB
A022_0000
I2C_1_18V
APB
A023_0000
Sensor DMA controller
APB
A024_0000
Auxiliary ADC Unit
APB
A090_0000
USB
AHB
A091_0000
USB SIFSLV
AHB
A090_0001
PD DMA
AHB
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3. External Interrupt Controller
3.1.
General Description
External interrupt controller supports some interrupt requests coming from external sources and peripherals. All
external interrupts, including external and peripherals sources, have the ability to inform the system to resume the
system clock.
The external interrupts can be used for different types of applications, mainly for event detections: detection of
hand free connection, hood opening and battery charger connection.
Since the external event may be unstable in a certain period, a de-bounce mechanism is introduced to ensure the
functionality. The circuitry is mainly used to verify that the input signal remains stable for a programmable number
of periods of the clock. When this condition is satisfied, for the appearance or the disappearance of the input, the
output of the de-bounce logic will change to the desired state. Note that because it uses the 32,768Hz slow clock to
perform the de-bounce process, the parameter of the de-bounce period and de-bounce enable takes effect no
sooner than one 32,768Hz clock cycle (~30.52us) after the software program sets them up. When the sources of
external interrupt controller are used to resume the system clock in sleep mode, the de-bounce mechanism must
be enabled. However, the polarities of EINTs are clocked with the system clock, and therefore any change to them
takes effect immediately. Figure 3-1 is the block diagram of external interrupt controller. Table 3-1 illustrates the
external interrupt sources and related configuration of GPIO mode.
Note that the corresponding GPIO as external interrupt source should be in the input mode and is affected by GPIO
data input inversion registers (GPIO_DINV). Refer to the GPIO section for more details.
peripherals
peripherals
peripherals
Debounce Logic
Interrupt
Control
EINT_IRQ
Debounce Logic
APB BUS
Register
Figure 3-1. Block diagram of external interrupt controller
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MT2523 Series Reference Manual
Table 3-1. External interrupt sources
EINT
Source pin
EINT
Source pin
EINT0
AUXIN0 if (GPIO0_MODE==1)
EINT16
URXD0 if (GPIO16_MODE==3)
EINT1
AUXIN1 if (GPIO1_MODE==1)
EINT17
UTXD0 if (GPIO17_MODE==3)
EINT2
AUXIN2 if (GPIO2_MODE==1)
EINT18
GPIO_B1 if (GPIO19_MODE==2)
EINT19
GPIO_B5 if (GPIO23_MODE==2)
EINT20
keypad (KCOL0~4)
EINT21
uart0_rxd
EINT22
uart1_rxd
EINT3
EINT4
EINT5
EINT6
GPIO_A04 if (GPIO4_MODE==1), otherwise
MCDA3 if (GPIO35_MODE==2)
GPIO_A1 if (GPIO5_MODE==1), otherwise
LSCE_B if (GPIO39_MODE==2)
GPIO_A2 if (GPIO6_MODE==1), otherwise
LSDA if (GPIO41_MODE==2)
GPIO_A3 if (GPIO7_MODE==1), otherwise
LPTE if (GPIO43_MODE==2)
EINT7
GPIO_A4 if (GPIO8_MODE==1)
EINT23
uart2_rxd
EINT8
GPIO_A5 if (GPIO9_MODE==1)
EINT24
uart3_rxd
EINT25
bt_eint_b
EINT26
btif_sleep_wakeup_in_b
EINT27
pdn_usb11
EINT28
accdet_irq_b
EINT29
rtc_event_b
EINT30
pmic_irq_b
EINT31
gpcounter_irq_b
EINT9
EINT10
EINT11
EINT12
EINT13
EINT14
EINT15
GPIO_C0 if (GPIO11_MODE==1), otherwise
CMRST if (GPIO24_MODE==4)
GPIO_C1 if (GPIO12_MODE==1), otherwise
CMCSK if (GPIO29_MODE==5)
GPIO_C2 if (GPIO13_MODE==1), otherwise
MCCK if (GPIO30_MODE==2)
GPIO_C3 if (GPIO14_MODE==1), otherwise
MCCM0 if (GPIO31_MODE==2)
GPIO_C4 if (GPIO15_MODE==1), otherwise
MCDA0 if (GPIO32_MODE==2)
AUXIN3 if (GPIO3_MODE==1), otherwise
MCDA1 if (GPIO33_MODE==2)
AUXIN4 if (GPIO10_MODE==1), otherwise
MCDA2 if (GPIO34_MODE==2)
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MT2523 Series Reference Manual
3.2.
Register Definition
Module name: EINT Base address: (+A2030000h)
Address
A2030300
Name
EINT_STA
Width
32
Register Function
EINT interrupt status register
A2030308
A2030310
EINT_INTACK
EINT_EEVT
32
32
EINT interrupt acknowledge register
EINT wakeup event_b status register
A2030320
32
EINT interrupt mask register
A2030328
EINT_MASK
EINT_MASK_SE
T
32
EINT interrupt mask set register
A2030330
EINT_MASK_C
LR
32
EINT interrupt mask clear register
A2030340
EINT_WAKEUP
_MASK
32
EINT wakeup event mask register
A2030348
EINT_WAKEUP
_MASK_SET
32
EINT wakeup event mask set register
A2030350
EINT_WAKEUP
_MASK_CLR
32
EINT wakeup event mask clear register
32
EINT sensitivity register
32
EINT sensitivity set register
A2030368
EINT_SENS
EINT_SENS_SE
T
A2030370
EINT_SENS_CL
R
32
EINT sensitivity clear register
A2030380
EINT_DUALED
GE_SENS
32
EINT dual edge sensitivity register
A2030388
EINT_DUALED
GE_SENS_SET
32
EINT dual edge sensitivity set register
A2030390
EINT_DUALED
GE_SENS_CLR
32
EINT dual edge sensitivity clear register
32
EINT software interrupt register
32
EINT software interrupt soft register
A2030360
A20303a8
EINT_SOFT
EINT_SOFT_SE
T
A20303b0
EINT_SOFT_CL
R
32
EINT software interrupt clear register
A20303c0
EINT_D0EN
32
EINT domain 0 enable register
A2030400 ~
A203047C
EINTi_CON
(i=0~31)
32
EINTi config register
A2030300
EINT_STA
A20303a0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
EINT interrupt status register
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_STA[31:16]
RO
0
0
0
0
0
0
0
0
0
0
EINT_STA[15:0]
RO
0
0
0
0
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
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MT2523 Series Reference Manual
Overview
Bit(s) Mnemonic Name
31:0
Description
External interrupt status
This register keeps up with the current status of which EINT source
generates the interrupt request. If the EINT sources are set to edge
sensitivity, EINT_IRQ will be de-asserted when the corresponding
EINT_INTACK is programmed by 1.
EINT_STA[i] for EINTi.
EINT_STA
0: No external interrupt request is generated.
1: External Interrupt request is pending.
A2030308
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_INTACK EINT interrupt acknowledge register
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_INTACK[31:16]
WO
0
0
0
0
0
0
0
0
0
0
EINT_INTACK[15:0]
WO
0
0
0
0
0
0
0
0
0
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Overview
Bit(s) Mnemonic Name
31:0
Description
EINT_INTACK
Interrupt acknowledgement
Writing “1” to the specific bit position to acknowledge the interrupt
request corresponding to the external interrupt line source.
EINT_INTACK[i] for EINTi.
0: No effect
1: Interrupt request is acknowledged.
A2030310
Bit
Name
Type
Reset
Bit
Name
Type
Reset
EINT_EEVT
EINT wakeup event_b status register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
16
0
EEB
RO
0
Overview
Bit(s) Mnemonic Name
0
EEB
Description
EINT wake up event_b
This register is a debugging port to monitor internal signals. It is async
signal.
0: EINT wakes up sleep mode.
1: EINT does not wake up sleep mode.
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MT2523 Series Reference Manual
A2030320
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
1
EINT_MASK
30
1
29
1
EINT interrupt mask register
28
1
27
1
26
1
15
14
13
12
11
10
1
1
1
1
1
1
FFFFFFFF
25
24
23
22
21
9
8
7
6
5
4
3
2
1
0
1
1
1
1
1
1
EINT_MASK[31:16]
RO
1
1
1
1
1
EINT_MASK[15:0]
RO
1
1
1
1
20
1
19
1
18
17
1
1
16
1
Overview
Bit(s) Mnemonic
31:0
Name
Description
Interrupt mask
This register controls whether or not the EINT source is allowed to
generate an interrupt request. Setting a specific bit position to “1” will
prevent the external interrupt line from becoming active.
EINT_MASK[i] for EINTi.
EINT_MASK
0: Interrupt request is enabled.
1: Interrupt request is disabled.
A2030328
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_MASK_S
EINT interrupt mask set register
ET
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_MASK[31:16]
WO
0
0
0
0
0
0
0
0
0
0
EINT_MASK[15:0]
WO
0
0
0
0
0
0
0
0
0
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Overview
Bit(s) Mnemonic
31:0
Name
Description
Enables mask for the associated external interrupt source
This register is used to set up individual mask bits. Only the bits set to 1
are effective; also set EINT_MASK bits to 1. Otherwise, EINT_MASK
bits will retain the original value.
EINT_MASK[i] for EINTi.
EINT_MASK
0: No effect
1: Enable the corresponding MASK bit
A2030330
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_MASK_C
EINT interrupt mask clear register
LR
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_MASK[31:16]
WO
0
0
0
0
0
0
0
0
0
0
EINT_MASK[15:0]
WO
0
0
0
0
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
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MT2523 Series Reference Manual
Overview
Bit(s) Mnemonic
31:0
Name
Description
Disables mask for the associated external interrupt source
This register is used to clear individual mask bits. Only the bits set to 1
are effective, and EINT_MASK bits are also cleared (to 0). Otherwise,
EINT_MASK bits will retain the original value.
EINT_MASK[i] for EINTi.
EINT_MASK
0: No effect
1: Disable the corresponding MASK bit
A2030340
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
1
EINT_WAKEU
EINT wakeup event mask register
P_MASK
30
1
29
1
28
1
27
1
15
14
13
12
11
1
1
1
1
1
FFFFFFFF
26
25
24
23
22
21
20
10
9
8
7
6
5
4
3
2
1
0
1
1
1
1
1
EINT_WAKEUP_MASK[31:16]
RO
1
1
1
1
1
1
EINT_WAKEUP_MASK[15:0]
RO
1
1
1
1
1
1
1
19
1
18
17
1
1
16
1
Overview
Bit(s) Mnemonic
Name
Description
EINT_WAKEUP_M Wakeup event mask
ASK
This register controls whether or not the EINT source is allowed to
generate a wakeup event request. Setting a specific bit position to “1” will
prevent the external interrupt line from becoming active.
EINT_WAKEUP_MASK[i] for EINTi.
31:0
0: Wakeup event request is enabled.
1: Wakeup event request is disabled.
A2030348
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
EINT_WAKEU
EINT wakeup event mask set register
P_MASK_SET
30
0
29
0
28
0
27
0
15
14
13
12
11
0
0
0
0
0
26
25
24
23
22
21
10
9
8
7
6
5
EINT_WAKEUP_MASK[31:16]
WO
0
0
0
0
0
0
EINT_WAKEUP_MASK[15:0]
WO
0
0
0
0
0
0
00000000
20
19
18
17
0
0
0
0
1
0
0
0
0
0
0
4
3
2
16
0
Overview
Bit(s) Mnemonic
31:0
Name
Description
EINT_WAKEUP_M Enables mask for the associated external interrupt source
ASK
This register is used to set up individual mask bits. Only the bits set to 1
are effective; also set EINT_WAKEUP_MASK bits to 1. Otherwise,
EINT_WAKEUP_MASK bits will retain the original value.
EINT_WAKEUP_MASK[i] for EINTi.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
A2030350
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
Name
Description
0: No effect
1: Enable the corresponding MASK bit
EINT_WAKEU
EINT wakeup event mask clear register
P_MASK_CLR
30
0
29
28
0
27
0
0
15
14
13
12
11
0
0
0
0
0
26
25
24
23
22
21
10
9
8
7
6
5
EINT_WAKEUP_MASK[31:16]
WO
0
0
0
0
0
0
EINT_WAKEUP_MASK[15:0]
WO
0
0
0
0
0
0
00000000
20
19
18
17
0
0
0
0
1
0
0
0
0
0
0
4
3
2
16
0
Overview
Bit(s) Mnemonic
Name
Description
EINT_WAKEUP_M Disables mask for the associated external interrupt source
ASK
This register is used to clear individual mask bits. Only the bits set to 1
are effective, and EINT_WAKEUP_MASK bits are also cleared (to 0).
Otherwise, EINT_WAKEUP_MASK bits will retain the original value.
EINT_WAKEUP_MASK[i] for EINTi.
31:0
0: No effect
1: Disable the corresponding MASK bit
A2030360
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_SENS
30
29
EINT sensitivity register
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_SENS[31:16]
RO
0
0
0
0
0
0
0
0
0
0
EINT_SENS[15:0]
RO
0
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Overview
Bit(s) Mnemonic
31:0
Name
Description
Sensitivity type of the associated external interrupt source
Sensitivity type of external interrupt source.
EINT_SENS[i] for EINTi.
EINT_SENS
0: Edge sensitivity
1: Level sensitivity
A2030368
Bit
Name
Type
Reset
Bit
31
0
15
EINT_SENS_S
EINT sensitivity set register
ET
30
0
14
29
0
13
28
0
12
27
0
11
26
0
10
00000000
25
24
23
22
9
8
7
6
EINT_SENS[31:16]
WO
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
21
20
19
18
17
0
0
0
0
0
5
4
3
2
1
16
0
0
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MT2523 Series Reference Manual
Name
Type
Reset
0
0
0
0
0
0
EINT_SENS[15:0]
WO
0
0
0
0
0
0
0
0
0
0
Overview
Bit(s) Mnemonic
31:0
Name
Description
Enables sensitive for the associated external interrupt source.
This register is used to set up individual sensitive bits. Only the bits set
to 1 are effective; also set EINT_SENS bits to 1. Otherwise, EINT_SENS
bits will retain the original value.
EINT_SENS[i] for EINTi.
EINT_SENS
0: No effect
1: Enable the corresponding SENS bit
A2030370
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_SENS_C
EINT sensitivity clear register
LR
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_SENS[31:16]
WO
0
0
0
0
0
0
0
0
0
0
EINT_SENS[15:0]
WO
0
0
0
0
0
0
0
0
0
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Overview
Bit(s) Mnemonic
31:0
Name
Description
Disables sensitive for the associated external interrupt source.
This register is used to clear individual sensitive bits. Only the bits set to
1 are effective, and EINT_SENS bits are also cleared (set to 0).
Otherwise, EINT_SENS bits will retain the original value.
EINT_SENS[i] for EINTi.
EINT_SENS
0: No effect
1: Disable the corresponding SENS bit
A2030380
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
EINT_DUALED
EINT dual edge sensitivity register
GE_SENS
30
0
29
0
28
0
27
0
15
14
13
12
11
0
0
0
0
0
26
25
24
23
22
21
10
9
8
7
6
5
EINT_DUALEDGE_SENS[31:16]
RO
0
0
0
0
0
0
EINT_DUALEDGE_SENS[15:0]
RO
0
0
0
0
0
0
00000000
20
19
18
17
0
0
0
0
1
0
0
0
0
0
0
4
3
2
16
0
Overview
Bit(s) Mnemonic
31:0
Name
Description
EINT_DUALEDGE_ Dual edge sensitivity enable of the associated external
interrupt source
SENS
Dual edge sensitivity enable of external interrupt source. (EINT_SENS
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
should be 0.)
EINT_DUALEDGE_SENS[i] for EINTi.
0: Disable
1: Enable
A2030388
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
EINT_DUALED
EINT dual edge sensitivity set register
GE_SENS_SET
30
0
29
0
28
0
27
0
15
14
13
12
11
0
0
0
0
0
26
25
24
23
22
21
10
9
8
7
6
5
EINT_DUALEDGE_SENS[31:16]
WO
0
0
0
0
0
0
EINT_DUALEDGE_SENS[15:0]
WO
0
0
0
0
0
0
00000000
20
19
18
17
0
0
0
0
1
0
0
0
0
0
0
4
3
2
16
0
Overview
Bit(s) Mnemonic
Name
Description
EINT_DUALEDGE_ Enables dual edge sensitivity for the associated external
interrupt source
SENS
This register is used to set up individual dual edge sensitive bits.
(EINT_SENS should be 0)
Only the bits set to 1 are effective; also set EINT_DUALEDGE_SENS
bits to 1. Otherwise, EINT_DUALEDGE_SENS bits will retain the
original value.
EINT_DUALEDGE_SENS[i] for EINTi.
31:0
0: No effect
1: Enable the corresponding DUALEDGE bit
A2030390
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
EINT_DUALED
EINT dual edge sensitivity clear register
GE_SENS_CLR
30
0
29
0
28
0
27
0
15
14
13
12
11
0
0
0
0
0
26
25
24
23
22
21
10
9
8
7
6
5
EINT_DUALEDGE_SENS[31:16]
WO
0
0
0
0
0
0
EINT_DUALEDGE_SENS[15:0]
WO
0
0
0
0
0
0
00000000
20
19
18
17
0
0
0
0
1
0
0
0
0
0
0
4
3
2
16
0
Overview
Bit(s) Mnemonic
31:0
Name
Description
EINT_DUALEDGE_ Disables dual edge sensitive for the associated external
interrupt source.
SENS
This register is used to clear individual sensitive bits. Only the bits set
to 1 are effective, and EINT_DUALEDGE_SENS bits are also cleared
(to 0). Otherwise, EINT_DUALEDGE_SENS bits will retain the
original value.
EINT_DUALEDGE_SENS[i] for EINTi.
0: No effect
1: Disable the corresponding DUALEDGE bit
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MT2523 Series Reference Manual
A20303a0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_SOFT
30
29
EINT software interrupt register
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_SOFT[31:16]
RO
0
0
0
0
0
0
0
0
0
0
EINT_SOFT[15:0]
RO
0
0
0
0
0
0
0
0
0
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Overview
Bit(s) Mnemonic
31:0
Name
Description
Software interrupt
This register is used for debugging purpose.
EINT_SOFT[i] for EINTi.
EINT_SOFT
0: No effect
1: Trigger an EINT
A20303a8
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_SOFT_S
EINT software interrupt set register
ET
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_SOFT[31:16]
WO
0
0
0
0
0
0
0
0
0
0
EINT_SOFT[15:0]
WO
0
0
0
0
0
0
0
0
0
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Overview
Bit(s)
Mnemonic
31:0
Name
Description
Enables software for the associated external interrupt source
This register is used to set up individual software bits. Only the bits set to
1 are effective, and EINT_SOFT bits are also set to 1. Otherwise,
EINT_SOFT bits will retain the original value.
EINT_SOFT[i] for EINTi.
EINT_SOFT
0: No effect
1: Enable the corresponding SOFT bit
A20303b0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_SOFT_C
EINT software interrupt clear register
LR
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_SOFT[31:16]
WO
0
0
0
0
0
0
0
0
0
0
EINT_SOFT[15:0]
WO
0
0
0
0
0
0
0
0
0
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Overview
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MT2523 Series Reference Manual
Bit(s) Mnemonic
31:0
Name
Description
Disables software for the associated external interrupt
source
This register is used to clear individual software bits. Only the bits set
to 1 are effective, and EINT_SOFT bits are also cleared (to 0).
Otherwise, EINT_SOFT bits will retain the original value.
EINT_SOFT[i] for EINTi.
EINT_SOFT
0: No effect
1: Disable the corresponding SOFT bit
A20303c0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
EINT_D0EN
30
29
EINT domain 0 enable register
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
EINT_D0EN[31:16]
RW
0
0
0
0
0
0
0
0
0
0
EINT_D0EN[15:0]
RW
0
0
0
0
0
0
0
0
0
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Overview
Bit(s) Mnemonic Name
31:0
Description
EINT enable config for domain 0
Each bit indicates whether the corresponding EINT is enabled for
domain 0. If enabled, it will assert interrupt or wakeup_event
depending on the corresponding mask bit value.
EINT_D0EN[i] for EINTi.
EINT_D0EN
0: Disable
1: Enable
A2030400~
EINTi_CON
A203047c
(i=0~31)
(step 0x4)
0000000
0
EINTi config register
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Type
Reset
Bit
WO
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
Name RSTD
BC
Name DBC_
EN
PRESCALER
POL
RW
0
RW
0
Type
Reset
RW
0
Bit(s)
Mnemonic Name
31
0
0
RSTDBC
DBC_CNT
0
0
0
0
0
RW
0
Description
EINTi debounce count reset
Write once to reset the de-bounce counter so that EINT can be updated
immediately without de-bounce latency. This option needs 100usec
latency to take effect.
0: No effect
1: Reset
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MT2523 Series Reference Manual
Bit(s)
15
14:12
11
10:0
Mnemonic Name
Description
DBC_EN
Enables EINTi debounce circuit
0: Disable
1: Enable
PRESCALER
EINTi debounce clock cycle period prescaler.
000: 32,768Hz, max. 0.0625sec
001: 16,384Hz
010: 8,192Hz
011: 4,096Hz
100: 2,048Hz, max. 1sec
101: 1,024Hz
110: 512Hz
111: 256Hz, max. 8secs
POL
Configures polarity
Activation type of the EINT source
0: Active low
1: Active high
DBC_CNT
Configures EINTi debounce duration
(The clock period is determined in PRESCALER.)
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MT2523 Series Reference Manual
4. Direct Memory Access
4.1.
General Description
A DMA controller is placed on AHB bus to support fast data transfers and off-load the processor. With this
controller, specific devices on AHB or APB buses can benefit greatly from quick completion of data movement from
or to memory modules. Such generic DMA controller can also be used to connect two devices other than memory
modules as long as they can be addressed in memory space. Figure 4-1 illustrates the system connections.
Figure 4-1. Variety data paths of DMA transfers
Up to 17 channels of simultaneous data transfers are supported. Each channel has a similar set of registers to be
configured to different schemes as desired. Both interrupt and polling based schemes in handling the completion
event are supported. The block diagram of such generic DMA controller is illustrated in Figure 4-2.
Figure 4-2. DMA block diagram
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4.1.1.
Full-size and Half-size DMA Channels
There are three types of DMA channels in the DMA controller: full-size DMA channel, half-size DMA channel and
virtual FIFO DMA. Channel 1 is a full-size DMA channel, channels 2 to 7 are half-size channels, and channels 9 to 18
are virtual FIFO DMA channels. The difference between the first two types of DMA channels is that both source
and destination address are programmable in full-size DMA channels, but only the address of one side can be
programmed in the half-size DMA channel. In half-size channels, only either the source or destination address can
be programmed while the addresses of the other side are fixed.
4.1.2.
Ring Buffer and Double Buffer Memory Data Movement
DMA channels 1 to 7 support ring-buffer and double-buffer memory data movement. This can be achieved by
programming DMA_WPPT and DMA_WPTO, as well as setting up WPEN in the DMA_CON register to enable. Figure
4-3 illustrates how this function works. Once the transfer counter reaches WPPT, the next address will jump to
WPTO address after the WPPT data transfer is completed. Note that only one side can be configured as ring-buffer
or double-buffer memory, and this is controlled by WPSD in the DMA_CON register.
Figure 4-3. Ring buffer and double buffer memory data movement
4.1.3.
Unaligned Word Access
The address of word access on AHB bus must be aligned to word boundary, or the 2 LSB is truncated to 00b. If the
programmer does not notice this, an incorrect data fetch may be caused. In the case where the data are to be
moved from unaligned addresses to aligned addresses, the word is usually first split into four bytes then moved
byte by byte. Thus the four read and four write transfers will appear on the bus.
To improve bus efficiency, the unaligned-word access is provided in DMA2~7. When this function is enabled, the
DMAs will move data from the unaligned address to aligned address by executing four continuous byte-read
accesses and one word-write access, reducing the number of transfers on the bus by three.
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Figure 4-4. Unaligned word accesses
4.1.4.
Virtual FIFO DMA
Virtual FIFO DMA is used to ease UART control. The difference between the virtual FIFO DMA and the ordinary
DMA is that the virtual FIFO DMA contains additional FIFO controllers. The read and write pointers are kept in the
virtual FIFO DMA. In a read from the FIFO, the read pointer points to the address of the next data. In a write to the
FIFO, the write pointer moves to the next address. If the FIFO is empty, a FIFO read will not be allowed. Similarly,
the data will not be written to the FIFO if the FIFO is full. Due to UART flow control requirements, an alert length is
programmed. Once the FIFO space is smaller than this value, an alert signal will be issued to enable the UART flow
control. The type of flow control performed depends on the setting in the UART.
Each virtual FIFO DMA can be programmed as RX or TX FIFO. This depends on the setting of DIR in the DMA_CON
register. If DIR is “0” (READ), it means TX FIFO. On the other hand, if DIR is “1” (WRITE), the virtual FIFO DMA will
be specified as an RX FIFO.
The virtual FIFO DMA provides an interrupt to MCU. This interrupt informs the MCU that there are data in the
FIFO, and the amount of data is above or under the value defined in the DMA_COUNT register. Based on this, the
MCU does not need to poll the DMA to know when the data must be removed from or put into the FIFO.
Figure 4-5. Virtual FIFO DMA
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Table 4-1. Virtual FIFO access ports
DMA number
Address of virtual FIFO access port
Reference UART
DMA9(PD)
A092_0000h
UART1 TX
DMA10(PD)
A092_0100h
UART1 RX
DMA11(PD)
A092_0200h
UART2 TX
DMA12(PD)
A092_0300h
UART2 RX
DMA13(PD)
A092_0400h
UART3 TX
DMA14(PD)
A092_0500h
UART3 RX
DMA15(PD)
A092_0600h
UART0 TX
DMA16(PD)
A092_0700h
UART0 RX
DMA17(AO)
A292_0000h
BTIF TX
DMA18(AO)
A292_0100h
BTIF RX
Table 4-2. Function list of DMA channels
DMA number
Type
Ring buffer
Double
buffer
Burst
mode
Unaligned
word access
Peripheral
DMA1 (PD)
Full size
●
●
●
DMA2 (PD)
Half size
●
●
●
●
MSDC1
DMA3 (PD)
Half size
●
●
●
●
MSDC2
DMA4 (Sensor)
Half size
●
●
●
●
I2C0 TX
DMA5 (Sensor)
Half size
●
●
●
●
I2C0 RX
DMA6 (Sensor)
Half size
●
●
●
●
I2C1 TX
DMA7 (Sensor)
Half size
●
●
●
●
I2C1 RX
DMA9 (PD)
Virtual FIFO
●
UART1_TX
DMA10 (PD)
Virtual FIFO
●
UART1_RX
DMA11 (PD)
Virtual FIFO
●
UART2_TX
DMA12 (PD)
Virtual FIFO
●
UART2_RX
DMA13 (PD)
Virtual FIFO
●
UART3_TX
DMA14 (PD)
Virtual FIFO
●
UART3_RX
DMA15 (PD)
Virtual FIFO
●
UART0_TX
DMA16 (PD)
Virtual FIFO
●
UART0_RX
DMA17 (AO)
Virtual FIFO
●
BTIF_TX
DMA18 (AO)
Virtual FIFO
●
BTIF_RX
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4.2.
Register Definition
4.2.1.
Register Summary
Module name: PD_DMA Base address: (+A0000000h)
Address
Name
Width
Register Function
A0000000
PD_DMA_GLBSTA
32
DMA global status register
A0000020
PD_DMA_GLB_SWRST
32
DMA global software reset
A0000100
GDMA1_SRC
32
DMA channel 1 source address register
A0000104
GDMA1_DST
32
DMA channel 1 destination address register
DMA channel 1 wrap point address register
A0000108
GDMA1_WPPT
32
A000010C
GDMA1_WPTO
32
DMA channel 1 wrap to address register
A0000110
GDMA1_COUNT
32
DMA channel 1 transfer count register
A0000114
GDMA1_CON
32
DMA channel 1 control register
A0000118
GDMA1_START
32
DMA channel 1 start register
A000011C
GDMA1_INTSTA
32
DMA channel 1 interrupt status register
A0000120
GDMA1_ACKINT
32
DMA channel 1 interrupt acknowledge register
A0000124
GDMA1_RLCT
32
DMA channel 1 remaining length of current transfer
A0000208
PDMA2_WPPT
32
DMA channel 2 wrap point address register
A000020C
PDMA2_WPTO
32
DMA channel 2 wrap to address register
A0000210
PDMA2_COUNT
32
DMA channel 2 transfer count register
A0000214
PDMA2_CON
32
DMA channel 2 control register
A0000218
PDMA2_START
32
DMA channel 2 start register
A000021C
PDMA2_INTSTA
32
DMA channel 2 interrupt status register
A0000220
PDMA2_ACKINT
32
DMA channel 2 interrupt acknowledge register
A0000224
PDMA2_RLCT
32
DMA channel 2 remaining length of current transfer
A000022C
PDMA2_PGMADDR
32
DMA channel 2 programmable address register
A0000308
PDMA3_WPPT
32
DMA channel 3 wrap point address register
A000030C
PDMA3_WPTO
32
DMA channel 3 wrap to address register
A0000310
PDMA3_COUNT
32
DMA channel 3 transfer count register
A0000314
PDMA3_CON
32
DMA channel 3 control register
A0000318
PDMA3_START
32
DMA channel 3 start register
A000031C
PDMA3_INTSTA
32
DMA channel 3 interrupt status register
A0000320
PDMA3_ACKINT
32
DMA channel 3 interrupt acknowledge register
DMA channel 3 remaining length of current transfer
A0000324
PDMA3_RLCT
32
A000032C
PDMA3_PGMADDR
32
DMA channel 3 programmable address register
A0000910
VDMA9_COUNT
32
DMA channel 9 transfer count register
A0000914
VDMA9_CON
32
DMA channel 9 control register
A0000918
VDMA9_START
32
DMA channel 9 start register
A000091C
VDMA9_INTSTA
32
DMA channel 9 interrupt status register
A0000920
VDMA9_ACKINT
32
DMA channel 9 interrupt acknowledge register
A000092C
VDMA9_PGMADDR
32
DMA channel 9 programmable address register
A0000930
VDMA9_WRPTR
32
DMA channel 9 write pointer
A0000934
VDMA9_RDPTR
32
DMA channel 9 read pointer
A0000938
VDMA9_FFCNT
32
DMA channel 9 FIFO count
A000093C
VDMA9_FFSTA
32
DMA channel 9 FIFO status
A0000940
VDMA9_ALTLEN
32
DMA channel 9 alert length
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A0000944
VDMA9_FFSIZE
32
A0000A10
VDMA10_COUNT
32
DMA channel 9 FIFO size
DMA channel 10 transfer count register
A0000A14
VDMA10_CON
32
DMA channel 10 control register
A0000A18
VDMA10_START
32
DMA channel 10 start register
A0000A1C
VDMA10_INTSTA
32
DMA channel 10 interrupt status register
DMA channel 10 interrupt acknowledge register
A0000A20
VDMA10_ACKINT
32
A0000A2C
VDMA10_PGMADDR
32
DMA channel 10 programmable address register
A0000A30
VDMA10_WRPTR
32
DMA channel 10 write pointer
A0000A34
VDMA10_RDPTR
32
DMA channel 10 read pointer
A0000A38
VDMA10_FFCNT
32
DMA channel 10 FIFO count
A0000A3C
VDMA10_FFSTA
32
DMA channel 10 FIFO status
A0000A40
VDMA10_ALTLEN
32
DMA channel 10 alert length
A0000A44
VDMA10_FFSIZE
32
DMA channel 10 FIFO size
A0000B10
VDMA11_COUNT
32
DMA channel 11 transfer count register
A0000B14
VDMA11_CON
32
DMA channel 11 control register
A0000B18
VDMA11_START
32
DMA channel 11 start register
A0000B1C
VDMA11_INTSTA
32
DMA channel 11 interrupt status register
A0000B20
VDMA11_ACKINT
32
DMA channel 11 interrupt acknowledge register
A0000B2C
VDMA11_PGMADDR
32
DMA channel 11 programmable address register
A0000B30
VDMA11_WRPTR
32
DMA channel 11 write pointer
A0000B34
VDMA11_RDPTR
32
DMA channel 11 read pointer
A0000B38
VDMA11_FFCNT
32
DMA channel 11 FIFO count
A0000B3C
VDMA11_FFSTA
32
DMA channel 11 FIFO status
A0000B40
VDMA11_ALTLEN
32
DMA channel 11 alert length
A0000B44
VDMA11_FFSIZE
32
DMA channel 11 FIFO size
A0000C10
VDMA12_COUNT
32
DMA channel 12 transfer count register
A0000C14
VDMA12_CON
32
DMA channel 12 control register
A0000C18
VDMA12_START
32
DMA channel 12 start register
A0000C1C
VDMA12_INTSTA
32
DMA channel 12 interrupt status register
DMA channel 12 interrupt acknowledge register
A0000C20
VDMA12_ACKINT
32
A0000C2C
VDMA12_PGMADDR
32
DMA channel 12 programmable address register
A0000C30
VDMA12_WRPTR
32
DMA channel 12 write pointer
DMA channel 12 read pointer
A0000C34
VDMA12_RDPTR
32
A0000C38
VDMA12_FFCNT
32
DMA channel 12 FIFO count
A0000C3C
VDMA12_FFSTA
32
DMA channel 12 FIFO status
A0000C40
VDMA12_ALTLEN
32
DMA channel 12 alert length
A0000C44
VDMA12_FFSIZE
32
DMA channel 12 FIFO size
A0000D10
VDMA13_COUNT
32
DMA channel 13 transfer count register
A0000D14
VDMA13_CON
32
DMA channel 13 control register
A0000D18
VDMA13_START
32
DMA channel 13 start register
DMA channel 13 interrupt status register
A0000D1C
VDMA13_INTSTA
32
A0000D20
VDMA13_ACKINT
32
DMA channel 13 interrupt acknowledge register
A0000D2C
VDMA13_PGMADDR
32
DMA channel 13 programmable address register
A0000D30
VDMA13_WRPTR
32
DMA channel 13 write pointer
A0000D34
VDMA13_RDPTR
32
DMA channel 13 read pointer
DMA channel 13 FIFO count
A0000D38
VDMA13_FFCNT
32
A0000D3C
VDMA13_FFSTA
32
DMA channel 13 FIFO status
A0000D40
VDMA13_ALTLEN
32
DMA channel 13 alert length
A0000D44
VDMA13_FFSIZE
32
DMA channel 13 FIFO size
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A0000E10
VDMA14_COUNT
32
DMA channel 14 transfer count register
A0000E14
VDMA14_CON
32
DMA channel 14 control register
A0000E18
VDMA14_START
32
DMA channel 14 start register
A0000E1C
VDMA14_INTSTA
32
DMA channel 14 interrupt status register
A0000E20
VDMA14_ACKINT
32
DMA channel 14 interrupt acknowledge register
A0000E2C
VDMA14_PGMADDR
32
DMA channel 14 programmable address register
A0000E30
VDMA14_WRPTR
32
DMA channel 14 write pointer
A0000E34
VDMA14_RDPTR
32
DMA channel 14 read pointer
A0000E38
VDMA14_FFCNT
32
DMA channel 14 FIFO count
A0000E3C
VDMA14_FFSTA
32
DMA channel 14 FIFO status
A0000E40
VDMA14_ALTLEN
32
DMA channel 14 alert length
A0000E44
VDMA14_FFSIZE
32
DMA channel 14 FIFO size
A0000F10
VDMA15_COUNT
32
DMA channel 15 transfer count register
A0000F14
VDMA15_CON
32
DMA channel 15 control register
A0000F18
VDMA15_START
32
DMA channel 15 start register
A0000F1C
VDMA15_INTSTA
32
DMA channel 15 interrupt status register
A0000F20
VDMA15_ACKINT
32
DMA channel 15 interrupt acknowledge register
A0000F2C
VDMA15_PGMADDR
32
DMA channel 15 programmable address register
A0000F30
VDMA15_WRPTR
32
DMA channel 15 write pointer
A0000F34
VDMA15_RDPTR
32
DMA channel 15 read pointer
A0000F38
VDMA15_FFCNT
32
DMA channel 15 FIFO count
A0000F3C
VDMA15_FFSTA
32
DMA channel 15 FIFO status
A0000F40
VDMA15_ALTLEN
32
DMA channel 15 alert length
A0000F44
VDMA15_FFSIZE
32
DMA channel 15 FIFO size
A0001010
VDMA16_COUNT
32
DMA channel 16 transfer count register
A0001014
VDMA16_CON
32
DMA channel 16 control register
A0001018
VDMA16_START
32
DMA channel 16 start register
A000101C
VDMA16_INTSTA
32
DMA channel 16 interrupt status register
A0001020
VDMA16_ACKINT
32
DMA channel 16 interrupt acknowledge register
A000102C
VDMA16_PGMADDR
32
DMA channel 16 programmable address register
A0001030
VDMA16_WRPTR
32
DMA channel 16 write pointer
A0001034
VDMA16_RDPTR
32
DMA channel 16 read pointer
DMA channel 16 FIFO count
A0001038
VDMA16_FFCNT
32
A000103C
VDMA16_FFSTA
32
DMA channel 16 FIFO status
A0001040
VDMA16_ALTLEN
32
DMA channel 16 alert length
A0001044
VDMA16_FFSIZE
32
DMA channel 16 FIFO size
Module name: AO_DMA Base address: (+A2070000h)
Address
Name
Width
Register Function
A2070000
AO_DMA_GLBSTA
32
DMA global status register
A2070020
AO_DMA_GLB_SWRST
32
DMA global software reset
A2070910
VDMA17_COUNT
32
DMA channel 17 transfer count register
A2070914
VDMA17_CON
32
DMA channel 17 control register
DMA channel 17 start register
A2070918
VDMA17_START
32
A207091C
VDMA17_INTSTA
32
DMA channel 17 interrupt status register
A2070920
VDMA17_ACKINT
32
DMA channel 17 interrupt acknowledge register
A207092C
VDMA17_PGMADDR
32
DMA channel 17 programmable address register
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MT2523 Series Reference Manual
A2070930
VDMA17_WRPTR
32
DMA channel 17 write pointer
A2070934
VDMA17_RDPTR
32
DMA channel 17 read pointer
A2070938
VDMA17_FFCNT
32
DMA channel 17 FIFO count
A207093C
VDMA17_FFSTA
32
DMA channel 17 FIFO status
A2070940
VDMA17_ALTLEN
32
DMA channel 17 alert length
DMA channel 17 FIFO size
A2070944
VDMA17_FFSIZE
32
A2070A10
VDMA18_COUNT
32
DMA channel 18 transfer count register
A2070A14
VDMA18_CON
32
DMA channel 18 control register
A2070A18
VDMA18_START
32
DMA channel 18 start register
A2070A1C
VDMA18_INTSTA
32
DMA channel 18 interrupt status register
A2070A20
VDMA18_ACKINT
32
DMA channel 18 interrupt acknowledge register
A2070A2C
VDMA18_PGMADDR
32
DMA channel 18 programmable address register
A2070A30
VDMA18_WRPTR
32
DMA channel 18 write pointer
A2070A34
VDMA18_RDPTR
32
DMA channel 18 read pointer
A2070A38
VDMA18_FFCNT
32
DMA channel 18 FIFO count
A2070A3C
VDMA18_FFSTA
32
DMA channel 18 FIFO status
A2070A40
VDMA18_ALTLEN
32
DMA channel 18 alert length
A2070A44
VDMA18_FFSIZE
32
DMA channel 18 FIFO size
Module name: SENSOR_DMA Base address: (+A0230000h)
Address
Name
Width
Register Function
A0230000
SENSOR_DMA_GLBSTA
32
DMA global status register
A0230020
SENSOR_DMA_GLB_SWRS
T
32
DMA global software reset
A0230208
PDMA4_WPPT
32
DMA channel 4 wrap point address register
A023020C
PDMA4_WPTO
32
DMA channel 4 wrap to address register
A0230210
PDMA4_COUNT
32
DMA channel 4 transfer count register
A0230214
PDMA4_CON
32
DMA channel 4 control register
A0230218
PDMA4_START
32
DMA channel 4 start register
A023021C
PDMA4_INTSTA
32
DMA channel 4 interrupt status register
A0230220
PDMA4_ACKINT
32
DMA channel 4 interrupt acknowledge register
DMA channel 4 remaining length of current transfer
A0230224
PDMA4_RLCT
32
A023022C
PDMA4_PGMADDR
32
DMA channel 4 programmable address register
A0230308
PDMA5_WPPT
32
DMA channel 5 wrap point address register
A023030C
PDMA5_WPTO
32
DMA channel 5 wrap to address register
A0230310
PDMA5_COUNT
32
DMA channel 5 transfer count register
A0230314
PDMA5_CON
32
DMA channel 5 control register
A0230318
PDMA5_START
32
DMA channel 5 start register
A023031C
PDMA5_INTSTA
32
DMA channel 5 interrupt status register
A0230320
PDMA5_ACKINT
32
DMA channel 5 interrupt acknowledge register
A0230324
PDMA5_RLCT
32
DMA channel 5 remaining length of current transfer
A023032C
PDMA5_PGMADDR
32
DMA channel 5 programmable address register
DMA channel 6 wrap point address register
A0230408
PDMA6_WPPT
32
A023040C
PDMA6_WPTO
32
DMA channel 6 wrap to address register
A0230410
PDMA6_COUNT
32
DMA channel 6 transfer count register
A0230414
PDMA6_CON
32
DMA channel 6 control register
A0230418
PDMA6_START
32
DMA channel 6 start register
A023041C
PDMA6_INTSTA
32
DMA channel 6 interrupt status register
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MT2523 Series Reference Manual
A0230420
PDMA6_ACKINT
32
DMA channel 6 interrupt acknowledge register
A0230424
PDMA6_RLCT
32
DMA channel 6 remaining length of current transfer
A023042C
PDMA6_PGMADDR
32
DMA channel 6 programmable address register
A0230508
PDMA7_WPPT
32
DMA channel 7 wrap point address register
A023050C
PDMA7_WPTO
32
DMA channel 7 wrap to address register
A0230510
PDMA7_COUNT
32
DMA channel 7 transfer count register
A0230514
PDMA7_CON
32
DMA channel 7 control register
A0230518
PDMA7_START
32
DMA channel 7 start register
DMA channel 7 interrupt status register
A023051C
PDMA7_INTSTA
32
A0230520
PDMA7_ACKINT
32
DMA channel 7 interrupt acknowledge register
A0230524
PDMA7_RLCT
32
DMA channel 7 remaining length of current transfer
A023052C
PDMA7_PGMADDR
32
DMA channel 7 programmable address register
4.2.2.
Global Registers
A0000000
Bit
Name
Type
Reset
Bit
PD_DMA_GLB
DMA global status register
STA
31
IT
16
RO
0
15
30
RUN
16
RO
0
14
29
IT
15
RO
0
13
28
RUN
15
RO
0
12
27
IT
14
RO
0
11
26
RUN
14
RO
0
10
25
IT
13
RO
0
9
24
RUN
13
RO
0
8
23
IT
12
RO
0
7
00000000
22
RUN
12
RO
0
6
Name
Type
Reset
Bit(s) Name
21
20
19
18
17
16
IT
11
RO
0
RUN
11
RO
0
IT
10
RO
0
RUN
10
RO
0
IT
9
RO
0
RUN
9
RO
0
IT
3
RO
0
RUN
3
RO
0
IT
2
RO
0
RUN
2
RO
0
IT
1
RO
0
RUN
1
RO
0
5
4
3
2
1
0
Description
31
IT16
Channel 16 interrupt status
30
RUN16
Channel 16 running status
29
IT15
Channel 15 interrupt status
28
RUN15
Channel 15 running status
27
IT14
Channel 14 interrupt status
26
RUN14
Channel 14 running status
25
IT13
Channel 13 interrupt status
24
RUN13
Channel 13 running status
23
IT12
Channel 12 interrupt status
22
RUN12
Channel 12 running status
21
IT11
Channel 11 interrupt status
20
RUN11
Channel 11 running status
19
IT10
Channel 10 interrupt status
18
RUN10
Channel 10 running status
17
IT9
Channel 9 interrupt status
16
RUN9
Channel 9 running status
5
IT3
Channel 3 interrupt status
4
RUN3
Channel 3 running status
3
IT2
Channel 2 interrupt status
2
RUN2
Channel 2 running status
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MT2523 Series Reference Manual
Bit(s) Name
Description
1
IT1
Channel 1 interrupt status
0
RUN1
Channel 1 running status
A0000020
Bit
Name
Type
Reset
Bit
PD_DMA_GLB
DMA global software reset
_SWRST
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s) Name
0
Bit
Software reset
Write 1 to reset.
AO_DMA_GLB
DMA global status register
STA
00000000
31
30
29
28
27
26
25
24
23
22
21
20
15
14
13
12
11
10
9
8
7
6
5
4
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s) Name
19
IT18
Channel 18 interrupt status
RUN18
Channel 18 running status
17
IT17
Channel 17 interrupt status
16
RUN17
Channel 17 running status
Bit
Name
Type
Reset
Bit
19
IT
18
RO
0
3
18
17
RUN
18
RO
0
IT
17
RO
0
2
1
AO_DMA_GLB
DMA global software reset
_SWRST
0
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s) Name
0
16
RUN
17
RO
0
Description
18
A2070020
0
SW_
RESE
T
RW
0
Description
SW_RESET
A2070000
16
SW_RESET
16
0
SW_
RESE
T
RW
0
Description
Software reset
Write 1 to reset.
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MT2523 Series Reference Manual
A0230000
Bit
Name
Type
Reset
Bit
SENSOR_DMA
DMA global status register
_GLBSTA
31
30
29
28
27
26
15
14
13
12
11
10
Name
Type
Reset
Bit(s) Name
25
9
IT
7
RO
0
24
8
RUN
7
RO
0
23
7
IT
6
RO
0
IT7
Channel 10 interrupt status
8
RUN7
Channel 10 running status
7
IT6
Channel 4 interrupt status
6
RUN6
Channel 4 running status
5
IT5
Channel 3 interrupt status
4
RUN5
Channel 3 running status
3
IT4
Channel 2 interrupt status
2
RUN4
Channel 2 running status
Bit
Name
Type
Reset
Bit
22
6
RUN
6
RO
0
21
5
IT
5
RO
0
20
4
RUN
5
RO
0
19
3
IT
4
RO
0
18
17
16
2
1
0
RUN
4
RO
0
Description
9
A0230020
00000000
SENSOR_DMA
DMA global software reset
_GLB_SWRST
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s) Name
0
4.2.3.
Software reset
Write 1 to reset.
SW_RESET
GDMA (Full-size DMA) Registers
31
0
30
0
29
0
28
0
DMA channel 1 source address register
27
0
26
25
0
0
SRC[31:16]
RW
0
0
0
SRC[15:0]
RW
0
0
15
14
13
12
11
10
0
0
0
0
0
0
Bit(s) Name
31:0
0
SW_
RESE
T
RW
0
Description
A0000100 GDMA1_SRC
Bit
Name
Type
Reset
Bit
Name
Type
Reset
16
SRC
9
24
23
8
7
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
Description
GDMA source address
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MT2523 Series Reference Manual
Bit(s) Name
A0000104
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
The register contains the base or current source address that the DMA channel is
currently operating in. Writing to this register specifies the base address of the
transfer source for a DMA channel. Reading this register will return the address
value from which the DMA is reading.
GDMA1_DST
31
30
0
0
29
0
28
0
25
0
0
DST[31:16]
RW
0
0
0
DST[15:0]
RW
0
0
13
12
11
10
0
0
0
0
0
0
9
24
23
8
7
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
0
GDMA destination address
The register contains the base or current destination address that the DMA
channel is currently operating in. Writing to this register specifies the base
address of the transfer destination for a DMA channel. Reading this register will
return the address value to which the DMA is writing.
GDMA1_WPPT DMA channel 1 wrap point address register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
WPPT
RW
0
0
Description
Transfer counts before jump
The register specifies the transfer count required to perform before the jump
point. This can be used to support the ring buffer or double buffer style memory
accesses. To enable this function, two control bits, WPEN and WPSD, in the DMA
control register must be programmed. If the transfer counter in the DMA engine
matches this value, an address jump will occur, and the next address will be the
address specified in GDMAn_WPTO. To enable this function, set up WPEN in
GDMAn_CON.
Note: The total size of data specified in the wrap point count in a DMA channel is
determined by LEN together with SIZE in GDMAn_CON, i.e. WPPT x SIZE.
WPPT
A000010C GDMA1_WPTO DMA channel 1 wrap to address register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
16
Description
DST
Bit(s) Name
15:0
0
26
14
A0000108
Bit
Name
Type
Reset
Bit
Name
Type
Reset
27
15
Bit(s) Name
31:0
DMA channel 1 destination address register
31
0
30
0
29
0
28
0
27
0
26
25
0
0
WPTO[31:16]
RW
0
0
0
WPTO[15:0]
RW
0
0
15
14
13
12
11
10
0
0
0
0
0
0
9
24
23
8
7
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
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5
4
3
2
16
0
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MT2523 Series Reference Manual
Bit(s) Name
31:0
A0000110
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
Jump address
The register specifies the address of the jump destination of a given DMA transfer
to support the ring buffer or double buffer style memory accesses. To enable this
function, set up two control bits, WPEN and WPSD, in the DMA control register.
To enable this function, WPEN in GDMAn_CON should be set.
WPTO
GDMA1_COUN
DMA channel 1 transfer count register
T
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit(s) Name
15:0
Amount of total transfer counts
This register specifies the amount of total transfer counts the DMA channel is
required to perform. Upon completion, the DMA channel will generate an
interrupt request to the processor when ITEN in GDMAn_CON is set to 1.
Note: The total size of data transferred by a DMA channel is determined by LEN
together with SIZE in GDMAn_CON, i.e. LEN x SIZE.
GDMA1_CON
31
COUNT
RW
0
0
Description
COUNT
A0000114
Bit
00000000
DMA channel 1 control register
00000000
30
29
28
27
26
25
24
23
22
21
14
13
12
11
10
9
8
7
6
5
20
19
18
4
3
2
Name
Type
Reset
Bit
15
Name ITEN
Type
RW
Reset
0
Bit(s) Name
BURST
RW
0
0
17
16
1
0
WPE WPS
N
D
RW
RW
0
0
DREQ DINC SINC
RW
RW
RW
0
0
0
0
SIZE
RW
0
Description
17
WPEN
Enables wrap
Address-wrapping for ring buffer and double buffer. The next address of DMA
will jump to WRAP TO address when the current address matches WRAP POINT
count.
0: Disable
1: Enable
16
WPSD
Selects wrap
The side using address-wrapping function. Only one side of a DMA channel can
activate the address-wrapping function at a time.
0: Address-wrapping on source
1: Address-wrapping on destination
15
ITEN
Enables DMA transfer completion interrupt
0: Disable
1: Enable
9:8
BURST
Transfer type
The burst-type transfers have better bus efficiency. Mass data movement is
recommended to use this type of transfer.
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MT2523 Series Reference Manual
Bit(s) Name
Description
Note: The burst-type transfer will not stop until all the beats in a burst are
completed or the transfer length is reached. Which transfer type can be used is
restricted by the SIZE. If SIZE is 00b, i.e. byte transfer, all of the four transfer
types can be used. If SIZE is 01b, i.e. half-word transfer, 16-beat incrementing
burst cannot be used. If SIZE is 10b, i.e. word transfer, only single and 4-beat
incrementing burst can be used.
00: Single
01: Reserved
10: 4-beat incrementing burst
11: Reserved
4
DREQ
Throttle and handshake control for DMA transfer
The DMA master is able to throttle down the transfer rate by request-grant
handshake.
0: No throttle control during DMA transfer or transfers occurr only between
memories
1: Hardware handshake management
3
DINC
Incremental destination address
The destination addresses increase every transfer. If the setting of SIZE is byte,
the destination addresses will increase by 1 every single transfer. If half-word, it
will increase by 2; and if word, increase by 4.
0: Disable
1: Enable
2
SINC
Incremental source address
The source addresses increase every transfer. If the setting of SIZE is byte, the
source addresses will increase by 1 every single transfer. If half-word, it will
increase by 2; and if word, increase by 4.
0: Disable
1: Enable
1:0
SIZE
Data size within the confine of a bus cycle per transfer
These bits confine the data transfer size between the source and destination to the
specified value for individual bus cycle. The size is in terms of byte, and the
maximum value is 4 bytes. It is mainly decided by the data width of a DMA
master.
00: Byte transfer/1 byte
01: Half-word transfer/2 bytes
10: Word transfer/4 bytes
11: Reserved
A0000118
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GDMA1_STAR
DMA channel 1 start register
T
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
STR
RW
0
Bit(s) Name
15
00000000
STR
Description
Start control for a DMA channel
This register controls the activity of a DMA channel. Note that prior to setting
STR to 1, all the configurations should be done by giving proper value to the
registers. Once STR is set to 1, the hardware will not clear it automatically no
matter the DMA channel accomplishes the DMA transfer or not. In other words,
the value of STR stays at 1 regardless of the completion of the DMA transfer.
Therefore, the software program should clear STR to 0 before restarting another
DMA transfer. If this bit is cleared to 0 when DMA transfer is active, the software
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MT2523 Series Reference Manual
Bit(s) Name
A000011C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
should poll RUNn in DMA_GLBSTA after this bit is cleared to ensure the current
DMA transfer is terminated by the DMA engine.
0: The DMA channel is stopped.
1: The DMA channel is started and running.
GDMA1_INTST
DMA channel 1 interrupt status register
A
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
INT
RW
0
Bit(s) Name
15
Description
Interrupt status for DMA channel
0: No interrupt request is generated.
1: One interrupt request is pending and waiting for service.
INT
A0000120
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GDMA1_ACKI
DMA channel 1 interrupt acknowledge register
NT
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ACK
WO
0
Interrupt acknowledge for the DMA channel
0: No effect
1: Interrupt request is acknowledged and should be relinquished.
GDMA1_RLCT
DMA channel 1 remaining length of current
transfer
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit(s) Name
15:0
Description
ACK
A0000124
Bit
Name
Type
Reset
Bit
Name
Type
Reset
00000000
31
Bit(s) Name
15
00000000
RLCT
RLCT
RO
0
0
Description
Reflects left count of transfer
Note: This value is transfer count, not the transfer data size.
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MT2523 Series Reference Manual
4.2.3.1.
PDMA (Half-size DMA) Registers
Only PDMA2 register is listed below. The register contents of other PDMA channels are the same as those of
PDMA2, only that the addresses are different. For register addresses, refer to the register summary section.
A0000208 PDMA2_WPPT DMA channel 2 wrap point address register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit(s) Name
15:0
00000000
WPPT
RW
0
0
Description
Transfer counts before jump
The register specifies the transfer count required to perform before the jump
point. This can be used to support the ring buffer or double buffer style memory
accesses. To enable this function, two control bits, WPEN and WPSD, in the DMA
control register must be programmed. If the transfer counter in the DMA engine
matches this value, an address jump will occur, and the next address will be the
address specified in PDMAn_WPTO. To enable this function, set up WPEN in
PDMAn_CON.
Note: The total size of data specified in the wrap point count in a DMA channel is
determined by LEN together with SIZE in PDMAn_CON, i.e. WPPT x SIZE.
WPPT
A000020C PDMA2_WPTO DMA channel 2 wrap to address register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
0
0
29
0
28
0
25
0
0
WPTO[31:16]
RW
0
0
0
WPTO[15:0]
RW
0
0
14
13
12
11
10
0
0
0
0
0
0
9
24
23
8
7
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
Description
Jump address
The register specifies the address of the jump destination of a given DMA transfer
to support the ring buffer or double buffer style memory accesses. To enable this
function, set up two control bits, WPEN and WPSD, in the DMA control register.
To enable this function, WPEN in PDMAn_CON should be set.
WPTO
A0000210
Bit
Name
Type
Reset
Bit
Name
Type
Reset
0
26
15
Bit(s) Name
31:0
27
00000000
PDMA2_COUN
DMA channel 2 transfer count register
T
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
COUNT
RW
0
0
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MT2523 Series Reference Manual
Bit(s) Name
15:0
Amount of total transfer counts
This register specifies the amount of total transfer counts the DMA channel is
required to perform. Upon completion, the DMA channel will generate an
interrupt request to the processor when ITEN in PDMAn_CON is set to 1.
Note: The total size of data transferred by a DMA channel is determined by LEN
together with SIZE in PDMAn_CON, i.e. LEN x SIZE.
COUNT
A0000214
Bit
Description
PDMA2_CON
31
30
29
28
DMA channel 2 control register
27
26
25
24
23
00000000
22
21
20
19
18
Name
DIR
Type
Reset
Bit
15
Name ITEN
Type
RW
Reset
0
RW
0
Bit(s) Name
14
13
12
11
10
9
8
BURST
RW
0
0
7
6
5
4
3
2
17
16
1
0
WPE WPS
N
D
RW
RW
0
0
B2W DREQ DINC SINC
RW
RW
RW
RW
0
0
0
0
0
SIZE
RW
0
Description
18
DIR
Directions of PDMA transfer
The direction is from the perspective of the DMA masters. WRITE means reading
from master then writing to the address specified in PDMAn_PGMADDR, and
vice versa. No effect on channel 1.
0: Peripheral TX
1: Peripheral RX
17
WPEN
Enables wrap
Address-wrapping for ring buffer and double buffer. The next address of DMA
will jump to WRAP TO address when the current address matches WRAP POINT
count.
0: Disable
1: Enable
16
WPSD
Selects wrap
The side using address-wrapping function. Only one side of a DMA channel can
activate the address-wrapping function at a time.
0: Address-wrapping on source
1: Address-wrapping on destination
15
ITEN
Enables DMA transfer completion interrupt
0: Disable
1: Enable
9:8
BURST
Transfer type
The burst-type transfers have better bus efficiency. Mass data movement is
recommended to use this type of transfer.
Note: The burst-type transfer will not stop until all of the beats in a burst are
completed or the transfer length is reached. Which transfer type can be used is
restricted by the SIZE. If SIZE is 00b, i.e. byte transfer, all of the four transfer
types can be used. If SIZE is 01b, i.e. half-word transfer, 16-beat incrementing
burst cannot be used. If SIZE is 10b, i.e. word transfer, only single and 4-beat
incrementing burst can be used.
00: Single
01: Reserved
10: 4-beat incrementing burst
11: Reserved
B2W
Byte to word
Word to byte or byte to word transfer for the applications of transferring nonword-aligned-address data to word-aligned-address data.
Note: BURST is set to 4-beat burst this function is enabled, and the SIZE is set to
5
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MT2523 Series Reference Manual
Bit(s) Name
Description
byte.
0: Disable
1: Enable
4
DREQ
Throttle and handshake control for DMA transfer
The DMA master is able to throttle down the transfer rate by request-grant
handshake.
0: No throttle control during DMA transfer or transfers occurred only between
memories
1: Hardware handshake management
3
DINC
Incremental destination address
The destination addresses increase every transfer. If the setting of SIZE is byte,
the destination addresses will increase by 1 every single transfer. If half-word, it
will increase by 2; and if word, increase by 4.
0: Disable
1: Enable
2
SINC
Incremental source address
The source addresses increase every transfer. If the setting of SIZE is byte, the
source addresses will increase by 1 every single transfer. If half-word, it will
increase by 2; and if word, increase by 4.
0: Disable
1: Enable
1:0
SIZE
Data size within the confine of a bus cycle per transfer
These bits confine the data transfer size between the source and destination to the
specified value for individual bus cycle. The size is in terms of byte, and the
maximum value is 4 bytes. It is mainly decided by the data width of a DMA
master.
00: Byte transfer/1 byte
01: Half-word transfer/2 bytes
10: Word transfer/4 bytes
11: Reserved
A0000218
Bit
Name
Type
Reset
Bit
Name
Type
Reset
PDMA2_STAR
DMA channel 2 start register
T
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
STR
RW
0
Bit(s) Name
15
00000000
STR
Description
Start control for a DMA channel
This register controls the activity of a DMA channel. Note that prior to setting
STR to 1, all the configurations should be done by giving proper value to the
registers. Once STR is set to 1, the hardware will not clear it automatically no
matter the DMA channel accomplishes the DMA transfer or not. In other words,
the value of STR stays at 1 regardless of the completion of the DMA transfer.
Therefore, the software program should clear STR to 0 before restarting another
DMA transfer. If this bit is cleared to 0 when DMA transfer is active, the software
should poll RUNn in DMA_GLBSTA after this bit is cleared to ensure the current
DMA transfer is terminated by the DMA engine.
0: The DMA channel is stopped.
1: The DMA channel is started and running.
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MT2523 Series Reference Manual
A000021C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
PDMA2_INTST
DMA channel 2 interrupt status register
A
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
INT
RO
0
Bit(s) Name
15
Description
Interrupt status for DMA channel
0: No interrupt request is generated.
1: One interrupt request is pending and waiting for service.
INT
A0000220
Bit
Name
Type
Reset
Bit
Name
Type
Reset
PDMA2_ACKI
DMA channel 2 interrupt acknowledge register
NT
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ACK
WO
0
Interrupt acknowledge for the DMA channel
0: No effect
1: Interrupt request is acknowledged and should be relinquished.
PDMA2_RLCT
DMA channel 2 remaining length of current
transfer
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit(s) Name
15:0
Description
ACK
A0000224
Bit
Name
Type
Reset
Bit
Name
Type
Reset
00000000
31
Bit(s) Name
15
00000000
RLCT
RLCT
RO
0
0
Description
Reflects left count of transfer
Note: This value is transfer count, not the transfer data size.
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MT2523 Series Reference Manual
PDMA2_PGMA DMA channel 2 programmable address
DDR
register
A000022C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
PGMADDR[31:16]
RW
0
0
0
0
0
0
0
0
0
0
PGMADDR[15:0]
RW
0
0
0
0
0
0
0
0
Bit(s) Name
31:0
27
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Description
PDMA programmable address
The above registers specify the address for a half-size DMA channel. This address
represents the source address if DIR in DMA_CON is set to 0 and represents the
destination address if DIR in PDMAn_CON is set to 1.
PGMADDR
4.2.3.2.
0
00000000
VDMA (Virtual FIFO DMA) Registers
Only VDMA9 register is listed below. The register contents of other VDMA channels are the same as those of
VDMA9, only that the addresses are different. For register addresses, refer to the register summary section.
A0000910
Bit
Name
Type
Reset
Bit
Name
Type
Reset
VDMA9_COUN
DMA channel 9 transfer count register
T
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit(s) Name
15:0
00000000
Description
FIFO threshold
For virtual FIFO DMA, this register is used to configure the RX threshold and TX
threshold. The interrupt will be triggered when FIFO count is larger than or equal
to RX threshold in RX path or FIFO count is less than or equal to TX threshold in
TX path.
Note: The ITEN bit in the VDMAn_CON register should be set, or no interrupt
will be issued. n is from 1 to 16.
COUNT
A0000914
Bit
31
Name
Type
Reset
Bit
15
Name ITEN
Type
RW
Reset
0
COUNT
RW
0
0
VDMA9_CON DMA channel 9 control register
00000000
30
29
28
27
26
25
24
23
22
21
14
13
12
11
10
9
8
7
6
5
© 2015 - 2018 Airoha Technology Corp.
20
19
4
3
DREQ
RW
0
18
17
16
2
1
0
DIR
RW
0
0
SIZE
RW
0
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MT2523 Series Reference Manual
Bit(s) Name
Description
18
DIR
Directions of PDMA transfer
The direction is from the perspective of the DMA masters. WRITE means reading
from master and then writing to the address specified in VDMAn_PGMADDR,
and vice versa. No effect on channel 1.
0: Peripheral TX
1: Peripheral RX
15
ITEN
Enables DMA transfer completion interrupt
0: Disable
1: Enable
4
DREQ
Throttle and handshake control for DMA transfer
The DMA master is able to throttle down the transfer rate by request-grant
handshake.
0: No throttle control during DMA transfer or transfers occurred only between
memories
1: Hardware handshake management
SIZE
Data size within the confine of a bus cycle per transfer
These bits confine the data transfer size between the source and destination to the
specified value for individual bus cycle. The size is in terms of byte, and the
maximum value is 4 bytes. It is mainly decided by the data width of a DMA
master.
00: Byte transfer/1 byte
01: Half-word transfer/2 bytes
10: Word transfer/4 bytes
11: Reserved
1:0
A0000918
Bit
Name
Type
Reset
Bit
Name
Type
Reset
VDMA9_STAR
DMA channel 9 start register
T
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
STR
RW
0
Bit(s) Name
15
00000000
STR
Description
Start control for a DMA channel
This register controls the activity of a DMA channel. Note that prior to setting
STR to 1, all the configurations should be done by giving proper value to the
registers. Once STR is set to 1, the hardware will not clear it automatically no
matter the DMA channel accomplishes the DMA transfer or not. In other words,
the value of STR stays at 1 regardless of the completion of the DMA transfer.
Therefore, the software program should clear STR to 0 before restarting another
DMA transfer. If this bit is cleared to 0 when DMA transfer is active, the software
should poll RUNn in DMA_GLBSTA after this bit is cleared to ensure the current
DMA transfer is terminated by the DMA engine.
0: The DMA channel is stopped.
1: The DMA channel is started and running.
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MT2523 Series Reference Manual
A000091C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
VDMA9_INTST
DMA channel 9 interrupt status register
A
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
INT
RW
0
Bit(s) Name
15
Description
Interrupt status for DMA channel
0: No interrupt request is generated.
1: One interrupt request is pending and waiting for service.
INT
A0000920
Bit
Name
Type
Reset
Bit
Name
Type
Reset
VDMA9_ACKI
DMA channel 9 interrupt acknowledge register
NT
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ACK
WO
0
Description
Interrupt acknowledge for the DMA channel
0: No effect
1: Interrupt request is acknowledged and should be relinquished.
ACK
A000092C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
VDMA9_PGMA DMA channel 9 programmable address
DDR
register
31
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
PGMADDR[31:16]
RW
0
0
0
0
0
0
0
0
0
0
PGMADDR[15:0]
RW
0
0
0
0
0
0
Bit(s) Name
31:0
00000000
31
Bit(s) Name
15
00000000
PGMADDR
0
0
0
00000000
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Description
VDMA programmable address
The above registers specify the address for a half-size DMA channel. This address
represents the source address if DIR in DMA_CON is set to 0 and represents the
destination address if DIR in VDMAn_CON is set to 1.
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MT2523 Series Reference Manual
A0000930
Bit
Name
Type
Reset
Bit
Name
Type
Reset
VDMA9_WRPT
DMA channel 9 write pointer
R
31
30
29
28
9
8
7
6
11
10
0
0
0
0
0
0
0
WRPTR[15:0]
RO
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
0
Virtual FIFO write pointer
VDMA9_RDPT
DMA channel 9 read pointer
R
31
16
Description
WRPTR
30
0
0
29
0
28
0
27
0
26
25
0
0
RDPTR[31:16]
RO
0
0
0
RDPTR[15:0]
RO
0
0
15
14
13
12
11
10
0
0
0
0
0
0
9
24
23
8
7
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
Description
Virtual FIFO read pointer
RDPTR
VDMA9_FFCN
DMA channel 9 FIFO count
T
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
FFCNT
RO
0
0
Description
Displays the number of data stored in FIFO
0 means FIFO is empty; FIFO will be full if FFCNT is equal to FFSIZE.
FFCNT
A000093C
Bit
Name
Type
Reset
Bit
22
12
0
Bit(s) Name
15:0
23
13
A0000938
Bit
Name
Type
Reset
Bit
Name
Type
Reset
24
14
0
Bit(s) Name
31:0
25
15
A0000934
Bit
Name
Type
Reset
Bit
Name
Type
Reset
26
WRPTR[31:16]
RO
0
0
0
0
Bit(s) Name
31:0
27
00000000
VDMA9_FFST
DMA channel 9 FIFO status
A
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Type
Reset
© 2015 - 2018 Airoha Technology Corp.
EMPT
ALT
FULL
Y
RO
RO
RO
0
0
0
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MT2523 Series Reference Manual
Bit(s) Name
Description
2
ALT
Indicates FIFO count is larger than ALTLEN
DMA issues an alert signal to UART/BRIF to enable UART/BRIF flow control.
0: Not reach alert region
1: Reach alert region
1
EMPTY
Indicates FIFO is empty
0: Not empty
1: Empty
0
FULL
Indicates FIFO is full
0: Not full
1: Full
A0000940
Bit
Name
Type
Reset
Bit
Name
Type
Reset
VDMA9_ALTL
DMA channel 9 alert length
EN
31
30
29
28
27
26
25
24
23
22
21
20
15
14
13
12
11
10
9
8
7
6
5
4
0
0
Bit(s) Name
5:0
18
17
16
3
2
1
0
0
0
ALTLEN
RW
0
0
Specifies alert length of virtual FIFO DMA
Once the remaining FIFO space is less than ALTLEN, an alert signal will be
issued to UART/BRIF to enable the flow control. Normally, ALTLEN should be
bigger than 16 for UART/BRIF applications.
VDMA9_FFSIZ
DMA channel 9 FIFO size
E
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit(s) Name
15:0
19
Description
ALTLEN
A0000944
Bit
Name
Type
Reset
Bit
Name
Type
Reset
00000000
FFSIZE
FFSIZE
RW
0
0
Description
Specifies FIFO size of virtual FIFO DMA
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MT2523 Series Reference Manual
5. Real Time Clock
5.1.
General Description
The Real-Time Clock (RTC) module provides time and data information, as well as 32,768 kHz clock. The provided
32k clock is selected between three clock sources: one from the external (XOSC32), and two from the internal
(DCXO, EOSC32). An additional pin, XOSC32_ENB, is added for the 32k crystal existence information. The clock
source is from the external oscillator or from the embedded clock sources, determined by the XOSC32_ENB pin
setting. The RTC block has an independent power supply. When the mobile handset is powered off, a dedicated
regulator supplies the RTC block. In addition to providing timing data, an alarm interrupt is generated and can be
used to power up the baseband core. Regulator interrupts corresponding to seconds, minutes, hours and days can
be generated whenever the time counter value reaches a maximum value (e.g., 59 for seconds and minutes, 23 for
hours, etc.). The year span is supported up to 2127. The maximum day-of-month values, which depend on the leap
year condition, are stored in the RTC block.
5.2.
Register Definitions
Module name: RTC Base address: (+A21E0000h)
Address
Name
Widt
h
A21E0000
RTC_BBPU
16
Baseband power up
A21E0004
RTC_IRQ_STA
16
RTC IRQ status
This register is fixed atin 0 when RTC_POWERKEY1 &
RTC_POWERKEY2 unmatch the correct values.
A21E0008
RTC_IRQ_EN
16
RTC IRQ enable
This register is fixed atin 0 when RTC_POWERKEY1 &
RTC_POWERKEY2 unmatch the correct values.
A21E000C
RTC_CII_EN
16
Counter increment IRQ enable
This register activates or de-activates the IRQ generation when the
TC counter reaches its maximum value.
Register Function
A21E0010
RTC_AL_MAS
K
16
RTC alarm mask
The alarm condition for alarm IRQ generation depends on whether
or not the corresponding bit in this register is masked. Warning: If
you set all bits to 1 in RTC_AL_MASK (i.e. RTC_AL_MASK=0x7f)
and PWREN=1 in RTC_BBPU, it means alarm will comes every
secondEVERY SECOND, not disabled.
A21E0014
RTC_TC_SEC
16
RTC seconds time counter register
A21E0018
RTC_TC_MIN
16
RTC minutes time counter register
A21E001C
RTC_TC_HOU
16
RTC hours time counter register
A21E0020
RTC_TC_DOM
16
RTC day-of-month time counter register
A21E0024
RTC_TC_DOW
16
RTC day-of-week time counter register
A21E0028
RTC_TC_MTH
16
RTC month time counter register
A21E002C
RTC_TC_YEA
16
RTC year time counter register
A21E0030
RTC_AL_SEC
16
RTC second alarm setting register
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MT2523 Series Reference Manual
Module name: RTC Base address: (+A21E0000h)
A21E0034
RTC_AL_MIN
16
RTC minute alarm setting register
A21E0038
RTC_AL_HOU
16
RTC hour alarm setting register
A21E003C
RTC_AL_DOM
16
RTC day-of-month alarm setting register
A21E0040
RTC_AL_DOW
16
RTC day-of-week alarm setting register
A21E0044
RTC_AL_MTH
16
RTC month alarm setting register
A21E0048
RTC_AL_YEA
16
RTC year alarm setting register
A21E0050
RTC_POWER
KEY1
16
RTC_POWERKEY1 register
A21E0054
RTC_POWER
KEY2
16
RTC_POWERKEY2 register
A21E0058
RTC_PDN1
16
PDN1
A21E005C
RTC_PDN2
16
PDN2
A21E0060
RTC_SPAR0
16
Spare register for specific purpose
A21E0064
RTC_SPAR1
16
Spare register for specific purpose
A21E0068
RTC_PROT
16
Lock/unlock scheme to prevent RTC miswriting
A21E006C
RTC_DIFF
16
One-time calibration offset
This register is fixed atin 0 when RTC_POWERKEY1 &
RTC_POWERKEY2 unmatch the correct values.
A21E0070
RTC_CALI
16
Repeat calibration offset
This register is fixed atin 0 when RTC_POWERKEY1 &
RTC_POWERKEY2 unmatch the correct values.
A21E0074
RTC_WRTGR
16
Enable the transfers from core to RTC in the queue
A21E0000
RTC_BBPU
Bit
15
14
13
Name
Type
Reset
Baseband power up
12
11
10
9
8
KEY_BBPU
0
0
0
0
WO
0
0
0
0
7
6
5
CB
US
Y
RE
LO
AD
RO
0
WO
0
0000
4
3
2
AL
AR
M_
PU
RW
0
1
0
PW
RE
N
RW
0
Overview
Bit(s)
Name
15:8
KEY_BBPU
Description
A bus write is acceptable only when KEY_BBPU is correct.
6
CBUSY
The read/write channels between RTC / Core is busy. This bit
indicates high after software program sequence to anyone of RTC
data registers and enables the transfer by RTC_WRTGR=1. By thise
way, it will beis high after the reset from low to high because RTC
reloads the process.
5
RELOAD
Reloads the values from RTC domain to Ccore domain. Generally
speaking, RTC will reload to synchronize the data from RTC to core
when reset from 0 to 1. This bit can be treated as a debug bit.
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MT2523 Series Reference Manual
Bit(s)
Name
2
ALARM_PU
0
PWREN
A21E0004
Bit
15
Description
Indicates whether or not PMU is powered on by alarm.
0: No alarm occurred; the alarm condition has not been met.
1: Alarm occurred.
Write 1 to clear this bit.
0: RTC alarm has no action on power switch.
1: When an RTC alarm occurs, ALARM_PU will beis set to 1 and the system will
be powereds on by RTC alarm wakeup.
RTC_IRQ_STA
14
13
12
RTC IRQ status
11
10
9
8
7
6
0000
5
4
Name
Type
Reset
Bit(s)
Name
3
1
0
A21E0008
15
0
AL
ST
A
RC
0
LPSTA
This register iIndicates the IRQ status and whether or not the LPD is
asserteds.
0: No IRQ occurred; the 32K clock is good.
1: IRQ occurred; the 32K clock stopped or stops. This can be masked by LP_EN
or cleared by initializinge LPD.
TCSTA
This register iIndicates the IRQ status and whether or not the tick
condition has been met.
0: No IRQ occurred; the tick condition has not been met.
1: IRQ occurred; the tick condition has been met.
ALSTA
This register iIndicates the IRQ status and whether or not the alarm
condition has been met.
0: No IRQ occurred; the alarm condition has not been met.
1: IRQ occurred; the alarm condition has been met.
RTC_IRQ_EN
14
13
12
RTC IRQ enable
11
10
9
8
7
6
0000
5
4
3
Name
Type
Reset
RW
0
Bit(s)
1
TC
ST
A
RC
0
Description
LP
_E
N
Overview
2
This register is fixed in 0 when RTC_POWERKEY1 & RTC_POWERKEY2 unmatch the
correct values.
Overview
Bit
3
LP
ST
A
RO
0
2
ON
ES
HO
T
RW
0
1
0
TC
_E
N
AL
_E
N
RW
0
RW
0
This register is fixed atin 0 when RTC_POWERKEY1 & RTC_POWERKEY2 unmatch
the correct values.
Name
3
LP_EN
2
ONESHOT
1
TC_EN
Description
This register eEnables the control bit for IRQ generation if the Llow
power is detected (32k clock off).
0: Disable IRQ generations.
1: Enable the LPD.
Controls automatic reset of AL_EN and TC_EN.
This register eEnables the control bit for IRQ generation if the tick
condition has been met.
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MT2523 Series Reference Manual
Bit(s)
Name
Description
0: Disable IRQ generations.
1: Enable the tick time match interrupt. Clear the interrupt when ONESHOT is
high upon generation of the corresponding IRQ.
0
AL_EN
A21E000C
Bit
This register eEnables the control bit for IRQ generation if the alarm
condition has been met.
0: Disable IRQ generations.
1: Enable the alarm time match interrupt. Clear the interrupt when ONESHOT is
high upon generation of the corresponding IRQ.
15
RTC_CII_EN
14
13
12
Counter increment IRQ enable
11
10
Name
Type
Reset
9
SE
CC
II_
1_
8
RW
0
0000
8
7
6
5
4
3
2
1
0
SE
CC
II_
1_4
SE
CC
II_
1_2
YE
AC
II
MT
HC
II
DO
WC
II
DO
MC
II
HO
UC
II
MI
NC
II
SE
CC
II
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
This register activates or de-activates the IRQ generation when the TC counter reaches
its maximum value.
Overview
Bit(s)
Name
Description
9
SECCII_1_8
Set the bit to 1 to activate the IRQ at each one-eighth of a second
update.
8
SECCII_1_4
Set the bit to 1 to activate the IRQ at each one-fourth of a second
update.
7
SECCII_1_2
Set the bit to 1 to activate the IRQ at each one-half of a second update.
6
YEACII
Set the bit to 1 to activate the IRQ at each year update.
5
MTHCII
Set the bit to 1 to activate the IRQ at each month update.
4
DOWCII
Set the bit to 1 to activate the IRQ at each day-of-week update.
3
DOMCII
Set the bit to 1 to activate the IRQ at each day-of-month update.
2
HOUCII
Set the bit to 1 to activate the IRQ at each hour update.
1
MINCII
Set the bit to 1 to activate the IRQ at each minute update.
0
SECCII
Set this bit to 1 to activate the IRQ at each second update.
RTC_AL_MAS
K
A21E0010
Bit
15
14
13
Name
Type
Reset
Overview
12
RTC alarm mask
11
10
9
8
7
6
YE
A_
MS
K
RW
0
5
MT
H_
MS
K
RW
0
0000
4
DO
W_
MS
K
RW
0
3
DO
M_
MS
K
RW
0
2
HO
U_
MS
K
RW
0
1
MI
N_
MS
K
RW
0
0
SE
C_
MS
K
RW
0
The alarm condition for alarm IRQ generation depends on whether or not the
corresponding bit in this register is masked. Warning: If you set all bits to 1 in
RTC_AL_MASK (i.e. RTC_AL_MASK=0x7f) and PWREN=1 in RTC_BBPU, it means
alarm will comes every second EVERY SECOND, not disabled.
Bit(s)
Name
6
YEA_MSK
Description
0: Condition (RTC_TC_YEA = RTC_AL_YEA) is checked to generate the alarm
signal.
1: Condition (RTC_TC_YEA = RTC_AL_YEA) is masked, i.e. the value of
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MT2523 Series Reference Manual
Bit(s)
Name
Description
RTC_TC_YEA does not affect the alarm IRQ generation.
5
MTH_MSK
0: Condition (RTC_TC_MTH = RTC_AL_MTH) is checked to generate the
alarm signal.
1: Condition (RTC_TC_MTH = RTC_AL_MTH) is masked, i.e. the value of
RTC_TC_MTH does not affect the alarm IRQ generation.
4
DOW_MSK
0: Condition (RTC_TC_DOW = RTC_AL_DOW) is checked to generate the
alarm signal.
1: Condition (RTC_TC_DOW = RTC_AL_DOW) is masked, i.e. the value of
RTC_TC_DOW does not affect the alarm IRQ generation.
3
DOM_MSK
0: Condition (RTC_TC_DOM = RTC_AL_DOM) is checked to generate the
alarm signal.
1: Condition (RTC_TC_DOM = RTC_AL_DOM) is masked, i.e. the value of
RTC_TC_DOM does not affect the alarm IRQ generation.
2
HOU_MSK
0: Condition (RTC_TC_HOU = RTC_AL_HOU) is checked to generate the
alarm signal.
1: Condition (RTC_TC_HOU = RTC_AL_HOU) is masked, i.e. the value of
RTC_TC_HOU does not affect the alarm IRQ generation.
1
MIN_MSK
0: Condition (RTC_TC_MIN = RTC_AL_MIN) is checked to generate the alarm
signal.
1: Condition (RTC_TC_MIN = RTC_AL_MIN) is masked, i.e. the value of
RTC_TC_MIN does not affect the alarm IRQ generation.
0
SEC_MSK
0: Condition (RTC_TC_SEC = RTC_AL_SEC) is checked to generate the alarm
signal.
1: Condition (RTC_TC_SEC = RTC_AL_SEC) is masked, i.e. the value of
RTC_TC_SEC does not affect the alarm IRQ generation.
A21E0014
RTC_TC_SEC
Bit
Name
Type
Reset
14
15
13
12
RTC seconds time counter register
11
10
9
8
7
6
5
0
0000
4
3
2
1
TC_SECOND
RW
0
0
0
0
0
0
Overview
Bit(s)
Name
Description
5:0
TC_SECOND
The second initial value for the time counter. The rRange: of its value
is: 0-~59.
A21E0018
RTC_TC_MIN
Bit
Name
Type
Reset
14
15
13
12
RTC minutes time counter register
11
10
9
8
7
6
5
0
0000
4
3
2
1
TC_MINUTE
RW
0
0
0
0
0
0
Overview
Bit(s)
Name
Description
5:0
TC_MINUTE
The minute initial value for the time counter. The rRange: of its value
is: 0~-59.
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MT2523 Series Reference Manual
A21E001C
RTC_TC_HOU
Bit
Name
Type
Reset
14
15
13
12
RTC hours time counter register
11
10
9
8
7
6
5
4
0
0000
3
2
1
TC_HOUR
RW
0
0
0
0
0
Overview
Bit(s)
Name
4:0
TC_HOUR
Description
The hour initial value for the time counter. The rRange: of its value
is: 0-~23.
A21E0020
RTC_TC_DOM
Bit
Name
Type
Reset
14
15
13
12
RTC day-of-month time counter register
11
10
9
8
7
6
5
4
0
0000
3
2
1
TC_DOM
RW
0
0
0
0
0
Overview
Bit(s)
4:0
A21E0024
Bit
Name
Type
Reset
Name
Description
TC_DOM
The day-of-month initial value for the time counter. The day-ofmonth maximum value depends on the leap year condition, i.e. 2 LSB
of year time counter are 0zeros.
RTC_TC_DOW
15
14
13
12
RTC day-of-week time counter register
11
10
9
8
7
6
5
4
0000
3
2
1
0
TC_DOW
RW
0
0
0
Overview
Bit(s)
Name
2:0
TC_DOW
Description
The day-of-week initial value for the time counter. The rRange: of its
value is: 1-~7.
A21E0028
RTC_TC_MTH
Bit
Name
Type
Reset
14
15
13
12
RTC month time counter register
11
10
9
8
7
6
5
4
0000
3
0
2
1
TC_MONTH
RW
0
0
0
0
Overview
Bit(s)
Name
Description
3:0
TC_MONTH
The month initial value for the time counter. The rRange: of its value
is: 1-~12.
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MT2523 Series Reference Manual
A21E002C
RTC_TC_YEA
Bit
Name
Type
Reset
14
15
13
12
RTC year time counter register
11
10
9
8
7
6
5
0
0
0000
4
3
2
TC_YEAR
RW
0
0
0
1
0
0
0
Overview
Bit(s)
6:0
A21E0030
Bit
Name
Description
TC_YEAR
The year initial value for the time counter. The rRange: of its value is:
0-127. (2000-2127).
Software can bias the year as multiples of 4 for the internal leap-year formula.
Here are 3 examples: 2000-2127, 1972~2099, 1904~2031.To simplify, RTC
hardware treats all 4-multiple as leap years. If the range you defined includes
non-leap 4-multiple year (e.g.say: 2100), you have to adjust it to the correct date
by yourselves. (e.g.x: change Feb. 29th, 2100 to Mar. 1st, 2100).
It's suggested to bias the range large than 1900 and less thean 2100 to evade the
manual adjustment, i.e.ing. I.e.: the bias values are suggested to be in the range
of [-28,-96], that are (1972~ 2099) ~ (1904~ 2031).
The formal leap formula:
if year modulo 400 is 0 then leap
else if year modulo 100 is 0 then no_leap
else if year modulo 4 is 0 then leap
else no_leap
RTC_AL_SEC
15
14
Name
Type
Reset
Overview
Bit(s)
13
12
RTC_LP
D_OPT
RW
0
0
RTC second alarm setting register
11
10
9
8
7
RTC_LPD_OPT
5:0
AL_SECOND
3
2
1
0
0
0
0
RW
0
0
0
LPD option
00: XOSC LPD | EOSC LPD (triggers when clock stops or VRTC low-V)
01: EOSC LPD (triggers when VRTC low-V)
10: XOSC LPD (triggers when clock stops)
11: nNo LPD
The second value of the alarm counter setting. The rRange: of its
value is: 0-59.
RTC_AL_MIN
Bit
Name
Type
Reset
14
13
4
Description
A21E0034
15
5
AL_SECOND
Name
13:12
6
0000
12
RTC minute alarm setting register
11
10
9
8
7
6
5
0
0000
4
3
2
1
AL_MINUTE
RW
0
0
0
0
0
0
Overview
Bit(s)
Name
5:0
AL_MINUTE
Description
The minute value of the alarm counter setting. The rRange: of its
value is: 0-59.
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MT2523 Series Reference Manual
A21E0038
RTC_AL_HOU
RTC hour alarm setting register
Bit
Name
Type
Reset
15
14
9
8
0
0
0
0
13
12
11
10
NEW_SPARE0
RW
0
0
0
0
7
6
5
4
0
0000
3
2
1
AL_HOUR
RW
0
0
0
0
0
Overview
Bit(s)
Name
15:8
NEW_SPARE0
4:0
AL_HOUR
A21E003C
Bit
Name
Type
Reset
RTC_AL_DOM
15
14
0
0
Description
The registers are rReserved for specific purposes.
The hour value of the alarm counter setting. The rRange: of its value
is: 0-~23.
RTC day-of-month alarm setting register
13
12
11
10
NEW_SPARE1
RW
0
0
0
0
9
8
0
0
7
6
5
4
0
0000
3
2
1
AL_DOM
RW
0
0
0
0
0
Overview
Bit(s)
Name
15:8
NEW_SPARE1
4:0
AL_DOM
A21E0040
Bit
Name
Type
Reset
Description
The registers are rReserved for specific purposes.
The day-of-month value of the alarm counter setting. The day-ofmonth maximum value depends on the leap year condition, i.e. 2 LSB
of year time counter are zeros 0.
RTC_AL_DOW
15
14
0
0
RTC day-of-week alarm setting register
13
12
11
10
NEW_SPARE2
RW
0
0
0
0
9
8
0
0
7
6
5
4
0000
3
2
1
0
AL_DOW
RW
0
0
0
Overview
Bit(s)
Name
15:8
NEW_SPARE2
2:0
AL_DOW
A21E0044
RTC_AL_MTH
Bit
Name
Type
Reset
15
14
0
0
13
Description
The registers are rReserved for specific purposes.
The day-of-week value of the alarm counter setting. The rRange: of its
value is: 1-~7.
RTC month alarm setting register
12
11
10
NEW_SPARE3
RW
0
0
0
0
9
8
0
0
7
6
5
4
0000
3
0
2
1
AL_MONTH
RW
0
0
0
0
Overview
Bit(s)
Name
15:8
NEW_SPARE3
3:0
AL_MONTH
Description
The registers are rReserved for specific purposes.
The month value of the alarm counter setting. The rRange: of its
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MT2523 Series Reference Manual
Bit(s)
Name
Description
value is: 1-~12.
A21E0048
RTC_AL_YEA
RTC year alarm setting register
Bit
Name
Type
Reset
15
14
9
8
0
0
0
0
13
12
11
10
NEW_SPARE4
RW
0
0
0
0
7
6
5
0
0
0000
4
3
2
AL_YEAR
RW
0
0
0
1
0
0
0
Overview
Bit(s)
Name
15:8
NEW_SPARE4
6:0
AL_YEAR
The registers are rReserved for specific purposes.
The year value of the alarm counter setting. The rRange: of its value
is: 0-~127. (2000-2127)
RTC_POWERK
EY1
A21E0050
Bit
Name
Type
Reset
Description
RTC_POWERKEY1 register
15
14
13
12
11
10
0
0
0
0
0
0
9
8
7
6
RTC_POWERKEY1
RW
0
0
0
0
0000
5
4
3
2
1
0
0
0
0
0
0
0
Overview
Bit(s)
Name
15:0
The RTC content is protected by RTC_POWERKEY1 and
RTC_POWRKEY2. When RTC_POWERKEY1 & RTC_POWERKEY2
are not equal to the correct values, the RTC content is not credibleis.
RTC_POWERKEY1
RTC_POWERK
EY2
A21E0054
Bit
Name
Type
Reset
Description
RTC_POWERKEY2 register
15
14
13
12
11
10
0
0
0
0
0
0
9
8
7
6
RTC_POWERKEY2
RW
0
0
0
0
0000
5
4
3
2
1
0
0
0
0
0
0
0
Overview
Bit(s)
Name
Description
15:0
RTC_POWERKEY2
The RTC content is protected by RTC_POWERKEY1 and
RTC_POWRKEY2. When RTC_POWERKEY1 & RTC_POWERKEY2
are not equal to the correct values, the RTC content is not credibleis.
A21E0058
Bit
Name
Type
Reset
RTC_PDN1
PDN1
15
14
13
12
11
10
9
0
0
0
0
0
0
0
8
7
RTC_PDN1
RW
0
0
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
0
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Overview
Bit(s)
Name
15:0
RTC_PDN1
A21E005C
Bit
Name
Type
Reset
Description
The sSpare registers for software to keep the power -on and power off state information.
RTC_PDN2
PDN2
15
14
13
12
11
10
9
0
0
0
0
0
0
0
8
7
RTC_PDN2
RW
0
0
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Overview
Bit(s)
Name
15:0
RTC_PDN2
Description
The sSpare registers for software to keep the power power-on and
power power-off state information.
A21E0060
RTC_SPAR0
Bit
Name
Type
Reset
15
14
13
12
11
10
9
0
0
0
0
0
0
0
Spare register for specific purpose
8
7
6
RTC_SPAR0
RW
0
0
0
0000
5
4
3
2
1
0
0
0
0
0
0
0
Overview
Bit(s)
Name
15:0
RTC_SPAR0
A21E0064
Bit
Name
Type
Reset
Description
The registers are rReserved for specific purposes.
RTC_SPAR1
Spare register for specific purpose
15
14
13
12
11
10
9
0
0
0
0
0
0
0
8
7
RTC_SPAR1
RW
0
0
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Overview
Bit(s)
Name
15:0
RTC_SPAR1
A21E0068
Bit
Name
Type
Reset
Description
The registers are rReserved for specific purposes.
RTC_PROT
Lock/unlock scheme to prevent RTC miswriting
15
14
13
12
11
10
9
0
0
0
0
0
0
0
8
7
RTC_PROT
RW
0
0
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Overview
Bit(s)
15:0
Name
Description
RTC_PROT
The RTC write interface is protected by RTC_PROT. Whether the RTC
writing interface is enabled or not is decided by RTC_PROT contents.
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Bit(s)
Name
Description
When RTC_POWERKEY1 & RTC_POWERKEY2 are not equal to the
correct values, the RTC writing interface willis always be enabled.
But when they match, users have to perform Uunlock flow to enable
the writing interface.
Notice: Please aAlways keep RTC in the unlock state in power -on mode. Once
the normal RTC content writing is completed, do notDO NOT modify the
RTC_PROT content to lock the RTC. The RTC_PROT contents will be cleared
automatically when powered off immediately.
A21E006C
Bit
15
Name
CA
LI_
RD
_S
EL
Type
Reset
RW
0
14
13
12
PO
WE
R_
DE
TE
CT
ED
RO
-
One-time calibration offset
11
10
9
8
7
6
5
0000
4
3
2
1
0
0
0
0
0
0
RTC_DIFF
0
0
0
0
0
0
RW
0
This register is fixed atin 0 when RTC_POWERKEY1 & RTC_POWERKEY2 unmatch
the correct values.
Overview
Bit(s)
Name
15
12
RTC_DIFF
Description
Selects which RTC_CALI is to be read when reading RTC_CALI
register
0: nNormal RTC_CALI
1: K_EOSC32_RTC_CALI
CALI_RD_SEL
POWER_DETECTED
POWER_DETECTED status
0: powerkey not match
1: RTC_POWERKEY1, RTC_POWERKEY2, RTC_POWERKEY1_NEW, and
RTC_POWERKEY2_NEW match the correct value.
These registers are used to aAdjusts the internal counter of RTC. It
eaffects once and returns to 0zero when in done.
11:0
In some cases, you observe the RTC is faster or slower than the standard. To
cChanginge RTC_TC_SEC is coarse and may cause alarm problems. RTC_DIFF
provides a finer time unit. An internal 15-bit counter accumulates in each 32768HZz clock. Entering a non-zero value into the RTC_DIFF will causes the internal
RTC counter to increases or decreases RTC_DIFF when RTC_DIFF changes to
0zero again. RTC_DIFF is in represents as 2's completement form.
RTC_DIFF
For example, if you fill in 0xfff into RTC_DIFF, the internal counter will
decreases 1 when RTC_DIFF returns to 0zero. In other words, you can only use
RTC_DIFF continuously if RTC_DIFF is equal to 0zero now.
Note: RTC_DIFF ranges from 0x800 (-2048) to 0x7fd (2045). Using 0x7ff and &
0x7fe is not allowed.are forbid to use.
A21E0070
Bit
Name
RTC_CALI
15
K_
EO
14
CA
LI_
13
12
Repeat calibration offset
11
10
9
8
7
6
5
0000
4
3
2
1
0
RTC_CALI
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A21E0070
Type
Reset
RTC_CALI
SC
32
_O
VE
RF
LO
W
RW
0
Repeat calibration offset
0000
W
R_
SE
L
RW
0
0
0
0
0
0
0
0
RW
0
0
0
0
0
0
0
This register is fixed atin 0 when RTC_POWERKEY1 & RTC_POWERKEY2 unmatch
the correct values.
Overview
Bit(s)
Name
Description
15
K_EOSC32_OVERFL
OW
EOSC32 calibration overflow (EOSC32 RTC_CALI update result from
PMU rtc_eosc_cali module overflow)
0: nNot overflow
1: oOverflow
14
CALI_WR_SEL
13:0
These registers provide a repeat calibration scheme. RTC_CALI
provides two types2 kinds of calibration.
1. 14-bit calibration capability in 8-second duration; in other words, 12-bit
calibration capability in each second. RTC_CALI is in represents in 2's
complement form, such that you can adjust RTC increasing or decreasing.
Due to that RTC_CALI is revealed in 8 seconds, the resolution is less than a
1/32768 clock.
Avg. resolution: 1/32768/8=3.81us
Avg. adjust range: -31.25~31.246ms/sec in 2's complement: -0x2000~0x1fff
(-8192~8191)
2. 14-bit calibration capability in 1-second duration when use EOSC32 as 32K
source (K_EOSC32_RTC_CALI); This typekind of usage is with resolution
1/32768=30.52us
RTC_CALI
A21E0074
Bit
Enables EOSC32 Cali value write enable.
Only takes effect oin RTC_CALI write operation.
0: nNormal RTC_CALI
1: K_EOSC32_RTC_CALI
Enable the transfers from core to RTC in the queue
RTC_WRTGR
15
14
13
12
11
10
9
8
7
6
5
4
3
0000
2
1
Name
Type
Reset
0
W
RT
GR
WO
0
Overview
Bit(s)
0
Name
Description
WRTGR
This register eEnables the transfers from core to RTC. After you
modify all the RTC registers you are'd like to change, you must write
RTC_WRTGR to 1 to trigger the transfer. The prior writing
operations are queued at core power domain. The pending data will
not be transferred to RTC domain until WRTGR=1.
After WRTGR=1, the pending data will beis transferred to RTC domain
sequentially in order of register address, from low to high. For example:
RTC_BBPU -> RTC_IRQ_EN -> RTC_CII_EN -> RTC_AL_MASK ->
RTC_TC_SEC -> etc. The CBUSY in RTC_BBPU is equal to 1 in writing process.
You can observe CBUSY to determine when the transmission is completeds.
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6. Universal Asynchronous Receiver Transmitter
6.1.
General Description
The baseband chipset houses four UARTs. UARTs provide full duplex serial communication channels between the
baseband chipset and external devices.
UART has both M16C450 and M16550A modes of operation, which are compatible with a range of standard
software drivers. The extensions are designed to be broadly software compatible with 16550A variants, but certain
areas offer no consensus.
In common with M16550A, the UART supports word lengths from 5 to 8 bits, an optional parity bit and one or two
stop bits and is fully programmable by an 8-bit CPU interface. A 16-bit programmable baud rate generator and an
8-bit scratch register are included, together with separate transmit and receive FIFOs. Two modem control lines
and a diagnostic loop-back mode are provided. UART also includes two DMA handshake lines, indicating when the
FIFOs are ready to transfer data to the CPU.
Note that UART is designed so that all internal operation is synchronized by the CLK signal. This synchronization
results in minor timing differences between the UART and industry standard 16550A device, which means that the
core is not clock for clock identical to the original device.
After hardware reset, UART will be in M16C450 mode; its FIFOs can then be enabled and UART can enter M16550A
mode. UART has further additional functions beyond the M16550A mode. Each of the extended functions can be
selected individually under software control.
UART provides more powerful enhancements than the industry-standard 16550:
Hardware flow control
This feature is very useful when the ISR latency is hard to predict and control in embedded applications. The MCU
is relieved of having to fetch the received data within a fixed amount of time.
Note that in order to enable the enhancements (hardware flow control), the enhanced mode bit, EFR[4], must be
set. If EFR[4] is not set, IER[7:4], FCR[5:4], cannot be written and MCR[7] cannot be read. The enhanced mode bit
ensures that UART is backward compatible with the software that has been written for 16C450 and 16550A
devices.
6.1.1.
Features
•
Provides four channels
•
DMA, polling or interrupt operation
•
Supports word lengths from five to eignt bits, with an optional parity bit and one or two stop bits
•
Two UART ports for hardware automatic flow control (UART0, UART1)
•
Supports baud rates from 110bps up to 3Mbps
•
Baud rate auto detection from 110bps up to 115,200bps
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6.1.2.
Block Diagram
Baud Rate
Generator
Baud
Divisor
Clock
TX FIFO
APB
BUS
I/F
APB Bus
RX FIFO
TX Machine
Uart_tx_data
RX Machine
Uart_rx_data
Modem
Control
Modem Outputs
Modem Inputs
Figure 6-1. Block Diagram of UART
6.1.3.
6.1.3.1.
Programming Guide
UART Band Rate Setting
UART baud rate = UART clock frequency/HIGHSPEED/{DLM, DLL}
UART clock frequency = 26MHz
HIGHSPEED = 16/8/4/(sampe_count+1)
DLM = User setting
DLL = User setting
Example 1:
Setting UART baud rate = 921600
RATEFIX_AD = 0x00 > UART clock frequency is set to “26MHz”
HIGHSPEED = 0x02 > HIGHSPEED is set to “4”
DLM = 0x0 > DLM is set to “0”
DLL = 0x7 > DLM is set to “7”
UART baud rate 26MHz/4/7 ≒ 921600Hz
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Example 2:
Setting UART baud rate = 115200
RATEFIX_AD = 0x05 > UART clock frequency is set to “13MHz”
HIGHSPEED = 0x03 > HIGHSPEED is set to “Sample Count”
SAMPLE_COUNT = 0xD > Sample count is set to “13”
DLM = 0x0 > DLM is set to “0”
DLL = 0x7 > DLM is set to “8”
UART baud rate 13MHz/(13+1)/8 ≒ 115200Hz
Note: You can increase (+1) the sample count of each bit of data by register FRACDIV_M and FRACDIV_L.
For example, to set bit 0, 4 and 8 of data to having a bigger sample count:
SAMPLE_COUNT = 0xD
FRACDIV_M = 0x1
FRACDIV_L = 0x11
Data
Bit 8
Bit 7
Bit 6
Bit 5
Bit 4
sample count
14
13
13
13
14
The feature can make UART receive/transmit data more accurately.
6.1.3.2.
Bit 3
13
Bit 2
13
Bit 1
13
Bit 0
14
Automatic Baud Rate Detection Setting
This feature can auto detect RX data baud rate without setting up UART baud rate.
1. AUTOBAUD_EN = |0x1: Enable auto-baud feature with standard baud rate
(standard baud rate: 115200, 57600, 38400, 19200, 9600, 4800, 1200, 300, 110 bits/sec)
AUTOBAUD_EN = |0x3: Enable auto-baud feature without standard baud rate (range from 115200 to 110 bits/sec)
2. AUTOBAUD_RATE_FIX: autobaud feature sample clock 26/13MHz
3. AUTOBAUDSAMPLE = 0d13: For autobaud feature sample clock = 26MHz
AUTOBAUDSAMPLE = 0d6: For autobaud feature sample clock = 13MHz
6.1.3.3.
HW Flow Control Setting
This feature controls UART start/stop transmission by RTS/CTS signal.
1. EFR = |0xC0: Enable RTS/CTS for hardware transmission/reception flow control
2. MCR = |0x2: RTS output can be controlled by flow control condition.
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6.1.3.4.
SW Flow Control Setting
This feature controls UART start/stop transmission by transmitting/receiving specific data.
1.
EFR[3:0]
Function
00xx
No TX flow control
xx00
No RX flow control
10xx
Transmit XON1/XOFF1 as flow control bytes
xx10
Receive XON1/XOFF1 as flow control bytes
2. XON1: User setting
3. XOFF1: User setting
4. ESCAPE_en: 0x01
5. ESCAPE_DAT: User setting
When SW flow control is enabled, and you are to transmit special character (ESC, XON, XOFF), set ESCAPE_en = 1.
When UART device receives two data (ESC & ~ special character), it can recognize the ESC command and store the
special character as a data.
Example:
UART TX transmit > ESC(command), ~XON
UART TX transmit > ESC(command), ~XOFF
̶
UART TX transmit > ESC(command), ~ESC
6.1.3.5.
̶
̶
UART RX receive > XON(data)
UART RX receive > XOFF(data)
UART RX receive > ESC(data)
Enable Sleep Mode
This feature gives feedback sleep_ack signal for system having sleep requirement.
1. SLEEP_ACK_SEL = 0: Support sleep_ack when autobaud_en is opened.
SLEEP_ACK_SEL = 1: Does not support sleep_ack when autobaud_en is opened.
2. SLEEP_EN = 1
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6.2.
Register Definition
There are four UARTs in this SOC. The usage of the registers below is the same except that the base address should
be changed to respective one.
UART number
Base address
Feature
UART0
0xA00D0000
Supports DMA, HW flow control
UART1
0xA00E0000
Supports DMA, HW flow control
UART2
0xA00F0000
Supports DMA
UART3
0xA0100000
Supports DMA
Module name: UART Base address: (+A00D0000h)
Address
Name
Width
A00D0000
RBR
8
A00D0000
THR
8
A00D0000
DLL
8
A00D0004
IER
8
A00D0004
DLM
8
A00D0008
IIR
8
A00D0008
FCR
8
A00D0008
EFR
8
Register Function
RX Buffer Register
Note: RBR is modified when LCR[7] = 0
TX Holding Register
Note: THR is modified when LCR[7] = 0
Divisor Latch (LS)
Divides the UART internal clk frequency
Note: DLL is modified when LCR[7] != 0
Interrupt Enable Register
By storing 1 to a specific bit position, the interrupt associated
with that bit is enabled. Otherwise, the interrupt will be
disabled.
Note: IER[3:0] are modified when LCR[7] = 0. IER[7:4] are
modified when LCR[7] = 0 & EFR[4] = 1.
Divisor Latch (MS)
Divides the UART internal clk frequency.
Note: DLM is modified when LCR[7] != 0.
Interrupt Identification Register
Priority is from high to low as the following.
IIR[5:0]= 6'h1: No interrupt pending.
IIR[5:0]= 6'h6: Line status interrupt (under IER[2]=1).
IIR[5:0]= 6'hc: RX data time-out interrupt (under
IER[0]=1).
IIR[5:0]= 6'h4: RX data are placed in the RX buffer register
or the RX FIFO trigger level is reached (under IER[0]=1).
IIR[5:0]= 6'h2: TX holding register is empty or the contents
of the TX FIFO have been reduced to its trigger level (under
IER[1]=1).
IIR[5:0]= 6'h10: XOFF character received (under IER[5]=1,
EFR[4] = 1).
IIR[5:0]= 6'h20: CTS or RTS rising edge (under IER[7]=1 or
EFR[6] = 1).
Note: DLM is modified when LCR != 8'hBF.
FIFO Control Register
FCR is used to control the trigger levels of the FIFOs or flush
the FIFOs.
Note: FCR[7:6] is modified when LCR != 8'hBF
FCR[5:4] is modified when LCR != 8'hBF & EFR[4] = 1
FCR[4:0] is modified when LCR != 8'hBF.
Enhanced Feature Register
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Address
Name
Width
A00D000C
LCR
8
A00D0010
MCR
8
A00D0010
XON1
8
A00D0014
LSR
8
A00D0018
XOFF1
8
A00D001C
SCR
8
A00D0020
AUTOBAUD_EN
8
A00D0024
HIGHSPEED
8
A00D0028
SAMPLE_COUNT
8
A00D002C
SAMPLE_POINT
8
A00D0030
AUTOBAUD_REG
8
A00D0034
RATEFIX_AD
8
A00D0038
AUTOBAUDSAMPLE
8
A00D003C
GUARD
8
A00D0040
ESCAPE_DAT
8
A00D0044
ESCAPE_EN
8
A00D0048
SLEEP_EN
8
A00D004C
DMA_EN
8
A00D0050
RXTRI_AD
8
Register Function
EFR is used to enable HW/SW flow control.
Note: EFR is modified when LCR = 8'hBF.
Line Control Register
Determines characteristics of serial communication signals.
Modem Control Register
Controls interface signals of the UART.
Note: MCR[5:0] is modified when LCR != 8'hBF, MCR[7]
can be read when LCR != 8'hBF & EFR[4] = 1.
XON1 Char Register
Note: XON1 is modified when LCR = 8'hBF.
Line Status Register
Note: LSR is modified when LCR != 8'hBF.
XOFF1 Char Register
Note: XOFF1 is modified when LCR = 8'hBF.
Scratch Register
General purpose read/write register. After reset, its value
will be un-defined.
Note: SCR is modified when LCR != 8'hBF.
Auto Baud Detect Enable Register
Enables UART auto baud detect feature.
High Speed Mode Register
HIGHSPEED is used to control UART baud rate.
Sample Counter Register
When HIGHSPEED=3, sample_count will be the threshold
value for UART sample counter (sample_num).
Count from 0 to sample_count.
Sample Point Register
When HIGHSPEED=3, UART gets the input data when
sample_count=sample_num, e.g. system clock = 13MHz,
921600 = 13000000/14. Therefore, sample_count = 13, and
sample point = 6 (sampling the central point to decrease the
inaccuracy) SAMPLE_POINT is usually (SAMPLE_COUNT1)/2 without decimal.
Auto Baud Monitor Register
Autobaud detection state. Will not be changed until
autobaud_en is enabled again.
Clock Rate Fix Register
Configures system and autobaud feature clock.
Auto Baud Sample Register
Since the system clock may change, autobaud sample
duration should change as the system clock changes.
When system clock = 13MHz, autobaudsample = 6; when
system clock = 26MHz, autobaudsample = 13.
Guard Time Added Register
Adds guard interval after stop bit.
Escape Character Register
Escape character of software flow control.
Escape Enable Register
Uses escape character for software flow control.
Sleep Enable Register
Allows UART to enter sleep mode.
DMA Enable Register
Allows UART to transmit/receive data using DMA.
Rx Trigger Address
UART RX FIFO threshold.
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Address
Name
Width
A00D0054
FRACDIV_L
8
A00D0058
FRACDIV_M
8
A00D005C
FCR_RD
8
A00D0000
Bit
Name
Type
Reset
RBR
15
14
RX Buffer Register
13
12
Bit(s) Name
7:0
Bit
Name
Type
Reset
THR
15
14
Bit
Name
Type
Reset
12
Bit
Name
DLL
Type
Reset
6
5
4
0
0
0
0
RBR
RU
3
2
1
0
0
0
0
0
11
10
9
8
00
7
6
5
0
0
0
4
3
THR
WO
0
0
2
1
0
0
0
0
14
Divisor Latch (LS)
13
12
11
10
9
01
8
7
6
5
4
0
0
0
0
DLL
RW
3
2
1
0
0
0
0
1
3
2
Description
Divisor latch low 8-bit data
Note: Modified when LCR[7] != 0.
DLL
15
7
TX holding Register
Write-only register. The transmitted data can be written by setting this register.
Only when LCR[7] = 0.
15
A00D0004
8
Description
Bit(s) Name
7:0
9
TX Holding Register
13
THR
A00D0000
10
RX buffer register
Read-update register. The received data can be read by accessing this register.
Only when LCR[7] = 0.
Bit(s) Name
7:0
11
00
Description
RBR
A00D0000
Register Function
Fractional Divider LSB Address
Increases (+1) the sample count of bit 0 ~ 7 of data.
Fractional Divider MSB Address
Increases (+1) the sample count of bit 8 ~ 9 of data.
FIFO Control Register
Sets up FIFO trigger threshold.
IER
14
Interrupt Enable Register
13
12
11
10
9
8
7
00
6
5
XOF
CTSI RTSI
FI
RW RW RW
0
0
0
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4
1
0
ETBE
ERB
ELSI
I
FI
RW RW RW
0
0
0
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Bit(s) Name
Description
7
CTSI
Masks an interrupt that is generated when a rising edge is detected on
the CTS modem control line.
Note: This interrupt is only enabled when hardware flow control is enabled.
0: Mask an interrupt generated when a rising edge is detected on the CTS modem
control line.
1: Unmask an interrupt generated when a rising edge is detected on the CTS
modem control line.
6
RTSI
Interrupt is inhibited when a rising edge is detected on the RTS
modem control line.
Note: This interrupt is only enabled when hardware flow control is enabled.
0: Interrupt is inhibited when a rising edge is detected on the RTS modem control
line.
1: Interrupt is generated when a rising edge is detected on the RTS modem
control line.
5
XOFFI
Masks an interrupt that is generated when an XOFF character is
received.
Note: This interrupt is only enabled when software flow control is enabled.
0: Mask an interrupt generated when an XOFF character is received.
1: Unmask an interrupt generated when an XOFF character is received.
2
ELSI
When set to1, an interrupt will be generated if BI, FE, PE or OE
(LSR[4:1]) becomes set.
0: No interrupt will be generated if BI, FE, PE or OE (LSR[4:1]) becomes set.
1: An interrupt will be generated if BI, FE, PE or OE (LSR[4:1]) becomes set.
1
ETBEI
When set to 1, an interrupt will be generated if the TX holding register
is empty or the contents of the TX FIFO have been reduced to its
trigger level.
0: No interrupt will be generated if the TX holding register is empty or the
contents of the TX FIFO have been reduced to its trigger level.
1: An interrupt will be generated if the TX folding register is empty or the
contents of the TX FIFO have been reduced to its trigger level.
0
ERBFI
When set to 1, an interrupt will be generated if RX data are placed in
RX buffer register or the RX trigger level is reached.
0: No interrupt will be generated if RX data are placed in the RX buffer register or
the RX trigger level is reached.
1: An interrupt will be generated if RX Data are placed in the RX buffer register or
the RX trigger level is reached.
A00D0004
Bit
Name
Type
Reset
DLM
15
Bit(s) Name
7:0
DLM
14
Divisor Latch (MS)
13
12
11
10
9
00
8
7
6
5
0
0
0
4
3
DLM
RW
0
0
2
1
0
0
0
0
Description
Divisor latch high 8-bit data
Note: Modified when LCR[7]!=0. DLL & DLM can only be updated when
DLAB(LCR[7]) is set to 1. Division by 1 will generate a BAUD signal that is
constantly high. DLL & DLM setting formula is {DLM,DLL}=(system clock
frequency/baud_pulse/baud_rate).
When RATE_FIX(RATEFIX_AD[0])=0, system clock frequency = 26MHz.
When RATE_FIX(RATEFIX_AD[0])=1, system clock frequency = 13MHz.
For baud_pulse value, refer to HIGH_SPEED(offset=24H) register.
For example, when at 26MHz, default speed mode and 115200 baud rate,
{DLM,DLL}=26MHz/16/115200=14.
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MT2523 Series Reference Manual
A00D0008
Bit
Name
Type
Reset
IIR
15
Bit(s) Name
7:6
FIFOE
5:0
ID
14
Interrupt Identification Register
13
12
11
10
9
8
7
6
FIFOE
RO
0
0
01
5
4
3
0
0
0
ID
RU
2
1
0
0
0
1
Description
IIR[5:0] -Priority level- interrupt source
000001
No interrupt pending
000110
1
Line status interrupt:
BI, FE, PE or OE set in LSR (under IER[2]=1)
001100
2
RX data time-out:
Time-out on character in RX FIFO (under IER[0]=1)
000100
3
RX data received:
RX data received or RX trigger level reached (under IER[0]=1)
000010
4
TX holding register empty:
TX holding register empty or TX FIFO trigger level reached (under IER[1]=1)
010000
5
Software flow control:
XOFF character received (under IER[5]=1)
100000
6
Hardware flow control:
CTS or RTS rising edge (under IER[7]=1 or IER[6]=1)
Line status interrupt: A RX line status interrupt (IIR[5:0] = 000110) will be
generated if ELSI (IER[2]) is set and any of BI, FE, PE or OE (LSR[4:1]) becomes
set. The interrupt is cleared by reading the line status register.
RX data time-out interrupt: When the virtual FIFO mode is disabled, RX
data time-out interrupt will be generated if all of the following conditions are
applied:
1. FIFO contains at least one character.
2. The most recent character is received longer than four character periods ago
(including all start, parity and stop bits);
3. The most recent CPU read of the FIFO is longer than four character periods
ago.
The timeout timer is restarted upon receipt of a new byte from the RX shift
register or upon a CPU read from the RX FIFO. The RX data time-out interrupt is
enabled by setting EFRBI (IER[0]) to 1 and is cleared by reading RX FIFO.
When the virtual FIFO mode is enabled, RX data time-out interrupt will be
generated if all of the following conditions are applied:
1. FIFO is empty.
2. The most recent character is received longer than four character periods ago
(including all start, parity and stop bits).
3. The most recent CPU read of the FIFO is longer than four character periods
ago.
The timeout timer is restarted upon receipt of a new byte from the RX shift
register or reading DMA_EN register. The RX Data Timeout Interrupt is enabled
by setting EFRBI (IER[0]) to 1 and is cleared by reading DMA_EN register.
RX data received interrupt: A RX received interrupt (IER[5:0] = 000100b)
will be generated if EFRBI (IER[0]) is set and either RX data are placed in the RX
buffer register or the RX trigger level is reached. The interrupt is cleared by
reading the RX buffer register or the RX FIFO (if enabled).
TX holding register empty interrupt: A TX holding register empty interrupt
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MT2523 Series Reference Manual
Bit(s) Name
Description
(IIR[5:0] = 000010) will be generated if ETRBI (IER[1]) is set and either the TX
holding register is empty or the contents of the TX FIFO are reduced to its trigger
level. The interrupt is cleared by writing to the TX holding register or TX FIFO if
FIFO is enabled.
Software flow control interrupt: A software flow control interrupt (IIR[5:0]
= 010000) will be generated if the software flow control is enabled and XOFFI
(IER[5]) becomes set, indicating that an XOFF character has been received. The
interrupt is cleared by reading the interrupt identification register.
Hardware flow control interrupt: A hardware flow control interrupt
(IER[5:0] = 100000) will be generated if the hardware flow control is enabled
and either RTSI (IER[6]) or CTSI (IER[7]) becomes set indicating that a rising
edge has been detected on either the RTS/CTS modem control line. The interrupt
is cleared by reading the interrupt identification register.
A00D0008
Bit
Name
FCR
15
14
FIFO Control Register
13
12
11
10
9
8
Type
Reset
Bit(s) Name
00
7
6
5
4
RFTL1_RF TFTL1_TF
TL0
TL0
WO
WO
0
0
0
0
RFTL1_RFTL0
RX FIFO trigger threshold
RX FIFO contains total 32 bytes.
0: 1
1: 6
2: 12
3: Use RX TRIG register data
5:4
TFTL1_TFTL0
TX FIFO trigger threshold
TX FIFO contains total 16 bytes.
0: 1
1: 4
2: 8
3: 14
2
CLRT
Control bit to clear TX FIFO
0: No effect
1: Clear TX FIFO
1
CLRR
Control bit to clear RX FIFO
0: No effect
1: Clear RX FIFO
0
FIFOE
Enables FIFO
This bit can affect other registers setting.
0: Disable both RX and TX FIFOs.
1: Enable both RX and TX FIFOs.
Bit
Name
Type
Reset
15
2
1
0
CLR
FIFO
CLRT
R
E
WO WO WO
0
0
0
Description
7:6
A00D0008
3
EFR
14
Enhanced Feature Register
13
12
11
10
9
8
7
AUT
O_CT
S
RW
0
00
6
AUT
O_R
TS
RW
0
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5
4
ENA
BLE_
E
RW
0
3
2
1
0
SW_FLOW_CONT
0
0
RW
0
0
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MT2523 Series Reference Manual
Bit(s) Name
Description
7
AUTO_CTS
Enables hardware transmission flow control
0: Disable
1: Enable
6
AUTO_RTS
Enables hardware reception flow control
0: Disable
1: Enable
4
ENABLE_E
Enables enhancement feature
0: Disable
1: Enable
SW_FLOW_CONT
Software flow control bits
00xx: No TX flow control
10xx: Transmit XON1/XOFF1 as flow control bytes
xx00: No RX flow control
xx10: Receive XON1/XOFF1 as flow control bytes
3:0
A00D000C
Bit
Name
LCR
15
14
Line Control Register
13
12
11
10
9
Type
Reset
Bit(s) Name
8
00
7
DLA
B
RW
0
6
5
SB
SP
RW
0
RW
0
4
3
2
1
0
WLS1_WL
EPS PEN STB
S0
RW RW RW
RW
0
0
0
0
0
Description
7
DLAB
Divisor latch access bit
0: RX and TX registers are read/written at Address 0 and the IER register is
read/written at Address 4.
1: Divisor Latch LS is read/written at Address 0 and the Divisor Latch MS is
read/written at Address 4.
6
SB
Sets up break
0: No effect
1: TX signal is forced to the 0 state.
5
SP
Stick parity
0: No effect.
1: The parity bit is forced to a defined state, depending on the states of EPS and
PEN: If EPS=1 & PEN=1, the even parity bit will be set and checked. If EPS=0 &
PEN=1, the odd parity bit will be set and checked.
4
EPS
Selects even parity
0: When EPS=0, an odd number of ones is sent and checked.
1: When EPS=1, an even number of ones is sent and checked.
3
PEN
Enables parity
0: The parity is neither transmitted nor checked.
1: The parity is transmitted and checked.
2
STB
Number of STOP bits
0: One STOP bit is always added.
1: Two STOP bits are added after each character is sent; unless the character
length is 5 when 1 STOP bit is added.
WLS1_WLS0
Selects word length
0: 5 bits
1: 6 bits
2: 7 bits
3: 8 bits
1:0
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MT2523 Series Reference Manual
A00D0010
Bit
MCR
15
14
Modem Control Register
13
12
11
10
9
8
Name
Type
Reset
Bit(s) Name
00
7
XOF
F_ST
ATUS
RU
0
6
5
4
3
2
1
Loop
RTS
RW
0
RW
0
Description
7
XOFF_STATUS
Read-only bit
0: When an XON character is received.
1: When an XOFF character is received.
4
Loop
Loop-back control bit
0: No loop-back is enabled.
1: Loop-back mode is enabled.
1
RTS
Controls the state of the output NRTS, even in loop mode.
0: RTS will always output 1.
1: RTS's output will be controlled by flow control condition.
A00D0010
Bit
Name
Type
Reset
XON1
15
14
XON1 Char Register
13
12
Bit(s) Name
7:0
Bit
10
9
8
00
7
6
5
0
0
0
4
3
XON1
RW
0
0
2
1
0
0
0
0
XON1 character for software flow control
Modified only when LCR = 8'hBF.
LSR
15
11
Description
XON1
A00D0014
0
14
Line Status Register
13
12
11
10
Name
Type
Reset
Bit(s) Name
9
8
60
7
6
5
FIFO TEM THR
ERR T
E
RU
RU
RU
0
1
1
4
3
2
1
0
BI
FE
PE
OE
DR
RU
0
RU
0
RU
0
RU
0
RU
0
Description
7
FIFOERR
RX FIFO error indicator
0: No PE, FE, BI set in the RX FIFO.
1: Set to 1 when there is at least one PE, FE or BI in the RX FIFO.
6
TEMT
TX holding register (or TX FIFO) and the TX shift register are empty.
0: Empty conditions below are not met.
1: If FIFOs are enabled, the bit will be set whenever the TX FIFO and the TX shift
register are empty. If FIFOs are disabled, the bit will be set whenever TX holding
register and TX shift register are empty.
5
THRE
Indicates if there is room for TX holding register or TX FIFO is
reduced to its trigger level
0: Reset whenever the contents of the TX FIFO are more than its trigger level
(FIFOs are enabled), or whenever TX holding register is not empty (FIFOs are
disabled).
1: Set whenever the contents of the TX FIFO are reduced to its trigger level
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MT2523 Series Reference Manual
Bit(s) Name
Description
(FIFOs are enabled), or whenever TX holding register is empty and ready to
accept new data (FIFOs are disabled).
4
BI
Break interrupt
0: Reset by the CPU reading this register
1: If the FIFOs are disabled, this bit will be set whenever the SIN is held in the 0
state for more than one transmission time (START bit + DATA bits + PARITY +
STOP bits).
If the FIFOs are enabled, this error will be associated with a corresponding
character in the FIFO and is flagged when this byte is at the top of the FIFO.
When a break occurs, only one zero character is loaded into the FIFO: The next
character transfer is enabled when RX signal goes into the marking state and
receives the next valid start bit.
3
FE
Framing error
0: Reset by the CPU reading this register
1: If the FIFOs are disabled, this bit will be set if the received data do not have a
valid STOP bit. If the FIFOs are enabled, the state of this bit will be revealed when
the byte it refers to is the next to be read.
2
PE
Parity error
0: Reset by the CPU reading this register
1: If the FIFOs are disabled, this bit will be set if the received data do not have a
valid parity bit. If the FIFOs are enabled, the state of this bit will be revealed
when the referred byte is the next to be read.
1
OE
Overrun error
0: Reset by the CPU reading this register.
1: If the FIFOs are disabled, this bit will be set if the RX buffer is not read by the
CPU before the new data from the RX shift register overwrites the previous
contents. If the FIFOs are enabled, an overrun error will occur when the RX FIFO
is full and the RX shift register becomes full. OE will be set as soon as this
happens. The character in the shift register is then overwritten, but not
transferred to the FIFO.
0
DR
Data ready
0: Cleared by the CPU reading the RX buffer or by reading all the FIFO bytes.
1: Set by the RX buffer register has data or FIFO becoming no empty.
A00D0018
Bit
Name
Type
Reset
XOFF1
15
14
XOFF1 Char Register
13
12
Bit(s) Name
7:0
Bit
Name
Type
Reset
Bit(s) Name
7:0
SCR
9
8
7
6
5
0
0
0
4
3
XOFF1
RW
0
0
2
1
0
0
0
0
XOFF1 character for software flow control
Modified only when LCR = 0xBF.
SCR
15
10
Description
XOFF1
A00D001C
11
00
14
Scratch Register
13
12
11
10
9
00
8
7
6
5
4
0
0
0
0
SCR
RW
3
2
1
0
0
0
0
0
Description
General purpose read/write register
The register will not be reset. Modified when LCR != 8'hBF.
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MT2523 Series Reference Manual
A00D0020
Bit
AUTOBAUD_EN Auto Baud Detect Enable Register
15
14
13
12
11
10
9
8
7
6
00
5
4
3
Name
Type
Reset
Bit(s) Name
2
SLEE
P_AC
K_SE
L
RO
0
1
AUT
OBA
UD_
SEL
RW
0
0
AUT
OBA
UD_
EN
RW
0
Description
2
SLEEP_ACK_SEL
Selects sleep ack when autobaud_en
0: Support sleep_ack when autobaud_en is opened .
1: Does not support sleep_ack when autobaud_en is opened .
1
AUTOBAUD_SEL
Selects auto-baud
0: Support standard baud rate detection
1: Support non_standard baud rate detection (support baud from 110 to 115200;
recommended to use 26MHz to auto fix) .
0
AUTOBAUD_EN
Auto-baud enabling signal
0: Disable auto-baud function
1: Enable auto-baud function (UARTn+0024h SPEED should be set to 0.)
Note: When AUTOBAUD_EN is active, there should not be A*/a* char before the
auto baud char AT/at. If A*/a* is Inevitable, autobaud will fail and please
disable AUTOBAUD_EN to reset the autobaud feature and autobaud_en again.
The AUTOBAUD_EN will automatic clear when baud rate detect success.
A00D0024
Bit
Name
Type
Reset
HIGHSPEED
15
14
13
High Speed Mode Register
12
Bit(s) Name
1:0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
14
13
12
7
00
6
5
4
3
2
1
0
SPEED
RW
0
0
11
10
9
8
00
7
6
0
0
5
4
3
2
SAMPLECOUNT
RW
0
0
0
0
1
0
0
0
Description
SAMPLECOUNT
15
8
SAMPLE_COUN
Sample Counter Register
T
15
A00D002C
9
UART sample counter base
0: Based on 16*baud_pulse, baud_rate = system clock frequency/16/{DLM, DLL}
1: Based on 8*baud_pulse, baud_rate = system clock frequency/8/{DLM, DLL}
2: Based on 4*baud_pulse, baud_rate = system clock frequency/4/{DLM, DLL}
3: Based on sampe_count * baud_pulse, baud_rate = system clock frequency /
(sampe_count+1)/{DLM, DLL}
Bit(s) Name
7:0
10
Description
SPEED
A00D0028
11
Only useful when HIGHSPEED mode = 3.
SAMPLE_POINT Sample Point Register
14
13
12
11
10
9
8
FF
7
6
1
1
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5
4
3
2
SAMPLEPOINT
RW
1
1
1
1
1
0
1
1
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MT2523 Series Reference Manual
Bit(s) Name
7:0
SAMPLE_POINT is usually (SAMPLE_COUNT-1)/2 without decimal. Effective
only when HIGHSPEED=3.
SAMPLEPOINT
A00D0030
Bit
Name
Type
Reset
Description
AUTOBAUD_RE
Auto Baud Monitor Register
G
15
14
13
12
Bit(s) Name
11
10
9
8
00
7
6
5
4
BAUD_STAT
RU
0
0
0
0
3
2
1
0
BAUD_RATE
RU
0
0
0
0
Description
7:4
BAUD_STAT
Autobaud state (only true value in standard autobaud detection)
0: Autobaud is detecting.
1: AT_7N1
2: AT_7O1
3: AT_7E1
4: AT_8N1
5: AT_8O1
6: AT_8E1
7: at_7N1
8: at_7E1
9: at_7O1
10: at_8N1
11: at_8E1
12: at_8O1
13: Autobaud detection fails
3:0
BAUD_RATE
Autobaud baud rate (only true value in standard autobaud detection)
0: 115,200
1: 57,600
2: 38,400
3: 19,200
4: 9,600
5: 4,800
6: 2,400
7: 1,200
8: 300
9: 110
A00D0034
Bit
RATEFIX_AD
15
14
13
12
Clock Rate Fix Register
11
10
9
8
00
7
6
5
4
3
Name
Type
Reset
Bit(s) Name
1
2
1
0
AUT
OBA
UD_ RAT
RAT E_FI
E_FI X
X
RW RW
0
0
Description
AUTOBAUD_RATE_FI 0: Use 26MHz as system clock for UART auto baud detection
X
1: Use 13MHz as system clock for UART auto baud detection
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MT2523 Series Reference Manual
Bit(s) Name
0
RATE_FIX
A00D0038
Bit
Name
Type
Reset
Description
0: Use 26MHz as system clock for UART TX/RX
1: Use 13MHz as system clock for UART TX/RX
AUTOBAUDSAM
Auto Baud Sample Register
PLE
15
14
13
12
9
8
7
6
5
GUARD
15
14
13
11
10
9
8
7
5
2
1
GUARD_CNT
1
1
RW
1
1
Guard interval add enabling signal
0: No guard interval added
1: Add guard interval after stop bit.
GUARD_CNT
Guard interval count value
Guard interval = [1/( UART clock frequency / HIGHSPEED / {DLM, DLL})]
*GUARD_CNT.
ESCAPE_DAT
15
14
13
12
15
Escape Character Register
11
10
9
8
FF
7
6
1
1
5
4
3
2
ESCAPE_DAT
RW
1
1
1
1
1
0
1
1
Description
Escape character added before software flow control data and escape
character
If TX data are xon (31h), with esc_en =1, UART will transmit data as esc + CEh
(~xon).
ESCAPE_DAT
A00D0044
Bit
3
Description
Bit(s) Name
7:0
0
0F
6
GUARD_EN
A00D0040
Bit
Name
Type
Reset
4
GUA
RD_
EN
RW
0
1
Guard Time Added Register
12
Bit(s) Name
3:0
0
clk diveision for autobaud rate detection
System clk 26m: 'd13
System clk 13m: 'd6
Type
Reset
4
4
3
2
1
AUTOBAUDSAMPLE
RW
0
1
1
0
Description
AUTOBAUDSAMPLE
A00D003C
Bit
Name
10
0
Bit(s) Name
5:0
11
0D
ESCAPE_EN
14
13
Escape Enable Register
12
11
10
9
8
00
7
6
5
4
3
2
1
Name
Type
Reset
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0
ESC_
EN
RW
0
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MT2523 Series Reference Manual
Bit(s) Name
0
Adds escape character in transmitter and removes escape character in
receiver by UART
0: Does not deal with the escape character
1: Add escape character in transmitter and remove escape character in receiver
ESC_EN
A00D0048
Bit
Description
SLEEP_EN
15
14
13
Sleep Enable Register
12
11
10
9
8
00
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s) Name
0
Bit
Description
For sleep mode issue
0: Does not deal with sleep mode indicate signal
1: Activate hardware flow control or software control according to software initial
setting when the chip enters sleep mode. Release hardware flow when the chip
wakes up. However, for software control, UART sends xon when awaken and
when FIFO does not reach threshold level.
SLEEP_EN
A00D004C
DMA_EN
15
0
SLEE
P_E
N
RW
0
14
13
DMA Enable Register
12
11
10
9
8
00
7
6
5
4
Name
Type
Reset
Bit(s) Name
3
2
1
TO_C
FIFO NT_ TX_
_lsr_ AUT DMA
sel ORST _EN
RW RW RW
0
0
0
0
RX_
DMA
_EN
RW
0
Description
3
FIFO_lsr_sel
Selects FIFO LSR mode
0: LSR will hold the first line status error state until you read the LSR register.
1: LSR will update automatically.
2
TO_CNT_AUTORST
Time-out counter auto reset register
0: After RX time-out happens, SW shall reset the interrupt by reading DMA_EN.
1: The RX time-out counter will be auto reset.
1
TX_DMA_EN
TX_DMA mechanism enabling signal
0: Does not use DMA in TX
1: Use DMA in TX. When this register is enabled, the flow control will be based on
the DMA threshold and generate a time-out interrupt for DMA.
0
RX_DMA_EN
RX_DMA mechanism enabling signal
0: Does not use DMA in RX
1: Use DMA in RX. When this register is enabled, the flow control will be based
on the DMA threshold and generate a time-out interrupt
A00D0050
Bit
Name
Type
Reset
15
RXTRI_AD
14
13
Rx Trigger Address
12
11
10
9
00
8
7
6
5
4
3
0
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2
1
RXTRIG
RW
0
0
0
0
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MT2523 Series Reference Manual
Bit(s) Name
3:0
When { RFTL1_RFTL0}=2'b11, the RX FIFO threshold will be Rxtrig. The value is
suggested to be smaller than half of RX FIFO size, which is 32 bytes.
RXTRIG
A00D0054
Bit
Name
Type
Reset
Description
FRACDIV_L
15
14
13
Fractional Divider LSB Address
12
Bit(s) Name
7:0
Bit
Name
9
8
7
6
0
0
00
5
4
3
FRACDIV_L
RW
0
0
0
2
1
0
0
0
0
Adds sampling count (+1) from state data7 to data0 to contribute fractional
divisor.only when high_speed=3.
FRACDIV_M
15
10
Description
FRACDIV_L
A00D0058
11
14
13
Fractional Divider MSB Address
12
11
10
9
8
7
6
00
5
4
3
2
Type
Reset
Bit(s) Name
1:0
Bit
Description
Adds sampling count when in state stop to parity to contribute fractional
divisor.only when high_speed=3.
FRACDIV_M
A00D005C
FCR_RD
15
1
0
FRACDIV_
M
RW
0
0
14
13
FIFO Control Register
12
11
10
9
8
Name
Type
Reset
Bit(s) Name
00
7
6
5
4
RFTL1_RF TFTL1_TF
TL0
TL0
RO
RO
0
0
0
0
3
2
1
0
CLR
FIFO
CLRT
R
E
RO
RO
RO
0
0
0
Description
7:6
RFTL1_RFTL0
RX FIFO trigger threshold
RX FIFO contains total 32 bytes.
0: 1
1: 6
2: 12
3: Use RX TRIG register data
5:4
TFTL1_TFTL0
TX FIFO trigger threshold
TX FIFO contains total 32 bytes.
0: 1
1: 4
2: 8
3: 14
2
CLRT
0: TX FIFO is not cleared.
1: TX FIFO is cleared.
1
CLRR
0: RX FIFO is not cleared.
1: RX FIFO is cleared.
0
FIFOE
Enables FIFO
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Bit(s) Name
Description
This bit must be set to 1 for any of other bits in the registers to have any effect.
0: RX and TX FIFOs are not enabled.
1: RX and TX FIFOs are enabled.
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MT2523 Series Reference Manual
7. Serial Peripheral Interface Master Controller
7.1.
General Description
The SPI (Serial Peripheral Interface) is a bit-serial, four-pin transmission protocol. Figure 7-1 is an example of the
connection between the SPI master and SPI slave. The SPI controller is a master responsible of data transmission
with slave.
SPI
Master
SCK
MOSI
MISO
CS0
CS1
SCK
MOSI
MISO
CS
SPI
Slave0
SCK
MOSI
MISO
CS
SPI
Slave1
Figure 7-1. Pin connection between SPI master and SPI slave
Figure 7-2 shows the waveform during SPI transmission. The low active CS_N determines the start point and end
point of one transaction. The CS_N setup time, hold time and idle time are also depicted.
CPOL defines the clock polarity in the transmission. Two types of polarity can be adopted, i.e. polarity 0 and
polarity 1. Figure 7-2 shows both of the clock polarity (CPOL) as examples.
CPHA defines the legal timing to sample MOSI and MISO. Two different methods can be adopted.
CS_N
idle time
Data Transmission
CS_N
CS_N setup time
CS_N hold time
SCK
(CPOL=0)
SCK Edge
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SCK
(CPOL=1)
SAMPLE MOSI/MISO
(CPHA=0)
SAMPLE MOSI/MISO
(CPHA=1)
Figure 7-2. SPI transmission formats
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Table 7-1. SPI master controller interface
7.1.1.
Signal name
Type
Description
CS0
O
Low active chip selection signal
CS1
O
Low active chip selection signal
SCK
O
The (bit) serial clock
MOSI
O
Data signal from master output to slave input
MISO
I
Data signal from slave output to master input
Features
The features of the SPI master controller are:
•
Configurable CS_N setup time, hold time and idle time
•
Programmable SCK high time and low time
•
Configurable transmitting and receiving bit order
•
Two configurable modes for the source of the data to be transmitted: 1) In TX DMA mode, the SPI
controller automatically fetches the transmitted data (to be put on the MOSI line) from memory; 2) In TX
FIFO mode, the data to be transmitted on the MOSI line are written to FIFO before the start of the
transaction.
•
Two configurable modes for destination of the data to be received: 1) In RX DMA mode, the SPI controller
automatically stores the received data (from MISO line) to memory; 2) In RX FIFO mode, the received data
keep being in RX FIFO of the SPI controller. The processor must read back the data by itself.
•
Adjustable endian order from/to memory system
•
Programmable byte length for transmission
•
Unlimited length for transmission, achieved by the operation of PAUSE mode. In PAUSE mode, the CS_N
signal will keep being active (low) after the transmission. At this time, the SPI controller is in PAUSE_IDLE
state, ready to receive the resume command. Figure 7-3 is the state transition.
•
Configurable option to control CS_N de-assertion between byte transfers. The controller supports a
special transmission format called CS_N de-assert mode. Figure 7-4 illustrates the waveform in this
transmission format.
•
SPI master supports connecting two SPI slaves.
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activate
IDLE
! (pause)
BUSY
pause
PAUSE IDLE
resume
Figure 7-3. Operation flow with or without PAUSE mode
CS_N
SCLK
BYTE
BYTE
...
BYTE
BYTE
BYTE
Figure 7-4. CS_N de-assert mode
Block Diagram
APB BUS
Control Register
AHB BUS
7.1.2.
32 bits
tx0
tx1
(16byte)
(16byte)
MOSI
TX
AHB
Interface
rx0
rx1
(16byte)
(16byte)
MISO
RX
Figure 7-5. Block diagram of SPI master controller
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MT2523 Series Reference Manual
7.2.
Register Definition
There are four SPI master controllers in this SOC. The usage of the registers below is the same except that the base
address should be changed to respective one.
SPI number
Base address
SPI0
0xA0110000
SPI1
0xA0120000
SPI2
0xA0130000
SPI3
0xA0140000
Module name: SPI0 Base address: (+A0110000h)
Address
A0110000
A0110004
A0110008
A011000C
A0110010
A0110014
A0110018
A011001C
A0110020
A0110024
A0110028
Name
SPI_CFG0
SPI_CFG1
SPI_TX_SRC
SPI_RX_DST
SPI_TX_DATA
SPI_RX_DATA
SPI_CMD
SPI_STATUS0
SPI_STATUS1
SPI_PAD_MACR
O_SEL
SPI_CFG2
Width
32
32
32
32
32
32
32
32
32
32
32
A0110000 SPI_CFG0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
SPI Configuration 2 Register
SPI Configuration 0 Register
31
30
29
28
27
26
0
15
0
14
0
13
0
12
0
11
0
10
0
0
0
0
0
0
Bit(s) Mnemonic
25
24
23
22
CS_SETUP_COUNT
RW
0
0
0
0
9
8
7
6
CS_HOLD_COUNT
RW
0
0
0
0
Name
31:16 CS_SETUP_COUNT CS_SETUP_COUNT
15:0
Register Function
SPI Configuration 0 Register
SPI Configuration 1 Register
SPI TX Source Address Register
SPI RX Destination Address Register
SPI TX DATA FIFO
SPI RX DATA FIFO
SPI Command Register
SPI Status 0 Register
SPI Status 1 Register
SPI pad_macro selection Register
CS_HOLD_COUNT
CS_HOLD_COUNT
00000000
21
20
19
18
17
16
0
5
0
4
0
3
0
2
0
1
0
0
0
0
0
0
0
0
Description
Chip select setup time
Setup time = (CS_SETUP_COUNT+1)*CLK_PERIOD,
where CLK_PERIOD (38.46ns) is the cycle time of the
clock the SPI engine adopts.
Chip select hold time
Hold time = (CS_HOLD_COUNT+1)*CLK_PERIOD,
where CLK_PERIOD (38.46ns) is the cycle time of the
clock the SPI engine adopts.
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A0110004 SPI_CFG1
Bit
31
29
SPI Configuration 1 Register
28
27
GET_ TICK
_DLY
Name
Type
Reset
Bit
Name
Type
Reset
30
RW
26
DE
VIC
E_
SE
L
RW
25
24
23
22
21
20
00000000
19
18
17
16
0
0
0
4
3
2
CS_IDLE_COUNT
RW
0
0
0
0
1
0
0
0
PACKET_LENGTH
RW
0
0
0
0
0
0
0
0
0
15
14
9
8
7
6
5
0
0
13
12
11
10
PACKET_LOOP_CNT
RW
0
0
0
0
0
0
0
0
0
0
Bit(s) Mnemonic
Name
Description
31:29 GET_TICK_DLY
GET_TICK_DLY
If the speed of SPI is not fast enough, the three bits can
help tolerate get_tick timing. The timing range between
get_tick is one cycle depending on CLK_PERIOD
(38.46ns).
DEVICE_SEL
SPI master receives device 0 or device 1 MISO data.
26
DEVICE_SEL
25:16 PACKET_LENGTH
15:8
7:0
PACKET_LENGTH
PACKET_LOOP_CN PACKET_LOOP_CN T The transmission on SPI bus consists of units
bytes. Hence, PACKET_LENGTH[9:0] define number of
T
bytes in one packet; PACKET_LOOP_CNT[7:0] define the
number of packets within one transaction. The number of
bytes in one packet = PACKET_LENGTH + 1. The number
of packets in one transaction = PACKET_LOOP_CNT + 1.
Total bytes of one transaction = (PACKET_LENGTH + 1)
*(PACKET_LOOP_CNT + 1).
CS_IDLE_COUNT
CS_IDLE_COUNT
Chip select idle time
Time between consecutive transaction =
(CS_HOLD_COUNT+1)*CLK_PERIOD.
A0110008 SPI_TX_SRC
Bit
Name
Type
Reset
Bit
Name
Type
Reset
30
29
28
27
26
25
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
0
0
0
0
0
0
Bit(s) Mnemonic
31:0
SPI TX Source Address Register
31
SPI_TX_SRC
24
23
22
SPI_TX_SRC
RW
0
0
0
8
7
6
SPI_TX_SRC
RW
0
0
0
00000000
21
20
19
18
17
16
0
5
0
4
0
3
0
2
0
1
0
0
0
0
0
0
0
0
Name
Description
SPI_TX_SRC
If TX_DMA_EN is set, the data to be put on the
MOSI line will be kept in memory in advance, and
the SPI controller will automatically read the data
from memory. SPI_TX_SRC defines the memory
address from which SPI controller starts to read
data. The address must be aligned to word
boundary.
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A011000C SPI_RX_DST
Bit
Name
Type
Reset
Bit
Name
Type
Reset
SPI RX Destination Address
Register
31
30
29
28
27
26
25
0
15
0
14
0
13
0
12
0
11
0
10
0
9
0
0
0
0
0
0
0
Bit(s) Mnemonic
31:0
SPI_RX_DST
31:0
31:0
28
27
26
0
15
0
14
0
13
0
12
0
11
0
10
0
0
0
0
0
0
16
0
5
0
4
0
3
0
2
0
1
0
0
0
0
0
0
0
0
25
24
23
SPI_TX_DATA
WO
0
0
0
9
8
7
SPI_TX_DATA
WO
0
0
0
00000000
22
21
20
19
18
17
16
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
0
0
0
0
0
0
Name
Description
SPI_TX_DATA
The depth of the TX FIFO is 32 bytes. Write to
this register to write 4 bytes to TX FIFO. The TX
FIFO pointer will automatically move toward
the next four bytes. Read from this register to
read 4 bytes from the FIFO, and the TX FIFO
pointer will automatically move toward the next
four bytes.
SPI RX DATA FIFO
31
30
29
28
27
26
0
15
0
14
0
13
0
12
0
11
0
10
0
0
0
0
0
0
SPI_RX_DATA
17
SPI TX DATA FIFO
29
Bit(s) Mnemonic
18
If RX_DMA_EN is set, the received data from the
MISO line will be moved to memory automatically
by the SPI controller. SPI_RX_DST defines the
memory address to which the SPI controller starts
to store the data. The address must be aligned to
word boundary.
A0110014 SPI_RX_DATA
Bit
Name
Type
Reset
Bit
Name
Type
Reset
19
SPI_RX_DST
30
SPI_TX_DATA
20
Description
31
Bit(s) Mnemonic
21
Name
A0110010 SPI_TX_DATA
Bit
Name
Type
Reset
Bit
Name
Type
Reset
24
23
22
SPI_RX_DST
RW
0
0
0
8
7
6
SPI_RX_DST
RW
0
0
0
00000000
25
24
23
SPI_RX_DATA
RO
0
0
0
9
8
7
SPI_RX_DATA
RO
0
0
0
00000000
22
21
20
19
18
17
16
0
6
0
5
0
4
0
3
0
2
0
1
0
0
0
0
0
0
0
0
0
Name
Description
SPI_RX_DATA
The depth of the RX FIFO is 32 bytes. Read from
this register to read 4 bytes from RX FIFO. The RX
FIFO pointer will automatically move toward the
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Bit(s) Mnemonic
Name
Description
next four bytes. Write to this register to write 4
bytes to FIFO, and the RX FIFO pointer will
automatically move toward the next four bytes.
A0110018 SPI_CMD
Bit
SPI Command Register
31
30
29
28
27
15
14
13
12
11
26
25
24
23
22
21
00000000
20
19
18
3
2
Name
Type
Reset
Bit
10
9
8
7
6
5
4
RX_
SAM CS_D
TX_E RX_E
TX_D
RXM TXM
D
CS_P
P
EASS PAUS
Name NDIA NDIA SBF SBF MA_ MA_ CPOL CPHA OL LE_S ERT_ E_EN
EN
N
N
EN
EL
EN
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Type
Reset
0
0
0
Bit(s) Mnemonic
0
0
0
0
0
0
0
Name
Description
0
0
RST
17
16
FINI
PAUS
SH_I
E_IE
E
RW
RW
0
0
1
0
RESU CMD_
ME ACT
RW
WO
WO
0
0
0
17
PAUSE_IE
PAUSE_IE
Interrupt enable bit of pause flag in SPI status
register
16
FINISH_IE
FINISH_IE
Interrupt enable bit of finish flag in SPI status
register
15
TX_ENDIAN
TX_ENDIAN
Defines whether to reverse the endian order of
the data DMA from memory. Default (0) is not to
reverse. Only supports DMA mode.
14
RX_ENDIAN
RX_ENDIAN
Defines whether to reverse the endian order of
the data DMA to memory. Default (0) is not to
reverse.
13
RXMSBF
RXMSBF
Indicates the data received from MISO line is
MSB first or not. Set RXMSBF to 1 for MSB first,
otherwise set it to 0.
12
TXMSBF
TXMSBF
Indicates the data sent on MOSI line is MSB first
or not. Set TXMSBF to 1 for MSB first, otherwise
set it to 0.
11
TX_DMA_EN
TX_DMA_EN
DMA mode enable bit of the data to be
transmitted. Default (0) is not to enable.
10
RX_DMA_EN
RX_DMA_EN
DMA mode enable bit of the data being received.
Default (0) is not to enable.
9
CPOL
CPOL
Control bit of the SCK polarity.
0: CPOL = 0
1: CPOL = 1
8
CPHA
CPHA
Defines the SPI clock format 0 or SPI clock
format 1 during transmission
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Bit(s) Mnemonic
Name
Description
0: CPHA = 0
1: CPHA = 1
7
CS_POL
Control bit of chip select polarity
CS_POL
0: Active low
1: Active high
6
SAMPLE_SEL
Control bit of sample edge of miso
SAMPLE_SEL
0: Positive edge
1: Negative edge
5
CS_DEASSERT_EN CS_DEASSERT_EN
Enable bit of the chip select de-assertion mode.
Set it to1 to enable this mode.
4
PAUSE_EN
PAUSE_EN
Enable bit of the pause mode. Set it to 1 to enable
this mode.
2
RST
RST
Software reset bit; resets the state machine and
data FIFO of SPI controller. When this bit is 1,
software reset is active high. The default value is
0.
1
RESUME
RESUME
This bit is used when controller is in PAUSE IDLE
state. Write 1 to this bit to trigger the SPI
controller resume transfer from PAUSE IDLE
state.
0
CMD_ACT
CMD_ACT
Command activate bit. Write 1 to this bit to trigger
the SPI controller to start the transaction.
A011001C SPI_STATUS0
Bit
Name
Type
Reset
Bit
31
30
29
28
SPI Status 0 Register
27
26
25
24
23
22
00000000
21
20
19
18
17
16
AAAA
15
14
13
12
11
10
9
8
7
6
5
Name
Type
Reset
Bit(s) Mnemonic
Name
Description
4
3
2
1
PAUS
E
RC
0
FINI
SH
RC
0
0
1
PAUSE
PAUSE
Interrupt status bit in pause mode. It will be set by
the SPI controller when it completes the
transaction, entering the PAUSE IDLE state.
0
FINISH
FINISH
Interrupt status bit in non-pause mode. It will be
set by the SPI controller when it completes the
transaction, entering the IDLE state.
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A0110020 SPI_STATUS1
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
26
25
24
23
22
00000001
21
15
14
13
12
11
10
9
8
7
6
5
19
18
17
16
4
3
2
1
0
BUSY
RO
1
BUSY
Name
Description
BUSY
This status flag reflects the SPI controller is busy
or not. This bit is low active, i.e. 0 represents the
SPI controller is busy now.
1'b1: Idle
1'b0: Busy
A0110024 SPI_PAD_MACRO_SEL
SPI pad_macro selection
Register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
25
31
30
29
28
27
26
24
23
22
21
00000000
20
19
18
17
16
AAAA
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PAD_MACRO_SEL
RW
0
Bit(s) Mnemonic
2:0
20
AAAA
Bit(s) Mnemonic
0
SPI Status 1 Register
27
PAD_MACRO_SEL
Name
Description
PAD_MACRO_SEL
Selects which PAD group SPI will use
0
0
Note:
SPI0 pad macro A = 0, SPI0 pad macro B = 1;
SPI1 pad macro A = 0, SPI1 pad macro B = 2;
SPI2 pad macro A = 0, SPI2 pad macro B = 2;
SPI3 pad macro A = 0, SPI3 pad macro B = 1;
A0110028 SPI_CFG2
Bit
Name
Type
Reset
Bit
Name
Type
Reset
SPI Configuration 2 Register
31
30
29
28
27
26
0
15
0
14
0
13
0
12
0
11
0
10
0
0
0
0
0
0
Bit(s) Mnemonic
Name
25
24
23
22
SCK_LOW_COUNT
RW
0
0
0
0
9
8
7
6
SCK_HIGH_COUNT
RW
0
0
0
0
00000000
21
20
19
18
17
16
0
5
0
4
0
3
0
2
0
1
0
0
0
0
0
0
0
0
Description
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Bit(s) Mnemonic
Name
31:16 SCK_LOW_COUNT SCK_LOW_COUNT
15:0
SCK_HIGH_COUNT SCK_HIGH_COUNT
Description
SCK clock low time =
(SCK_LOW_COUNT+1)*CLK_PERIOD
SCK clock high time =
(SCK_HIGH_COUNT+1)*CLK_PERIOD.
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MT2523 Series Reference Manual
8. Serial Peripheral Interface Slave Controller
8.1.
General Description
The SPI (Serial Peripheral Interface) is a bit-serial, four-pin transmission protocol. Figure 8-1 is an example of the
connection between the SPI master and SPI slave. The SPI slave controller can be configured by SPI master
transmit data, it is a slave responsible of data transmission with the master.
SCK
MOSI
MISO
CS
SPI
Master
SCK
MOSI
MISO
CS
SPI
Slave
Figure 8-1. Pin connection between SPI master and SPI slave
Figure 7-2 shows the waveform during the SPI transmission. The low active CS_N determines the start point and
end point of one transaction. The CS_N setup time, hold time and idle time are also depicted.
CPOL defines the clock polarity in the transmission. Two types of polarity can be adopted, i.e. polarity 0 and
polarity 1. Figure 7-2 shows both of the clock polarity (CPOL) as examples.
CPHA defines the legal timing to sample MOSI and MISO. Two different methods can be adopted.
CS_N
idle time
Data Transmission
CS_N
CS_N setup time
CS_N hold time
SCK
(CPOL=0)
SCK Edge
Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
SCK
(CPOL=1)
SAMPLE MOSI/MISO
(CPHA=0)
SAMPLE MOSI/MISO
(CPHA=1)
Figure 8-2. SPI transmission formats
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Table 8-1. SPI slave controller interface
8.1.1.
Signal name
Type
Description
CS
I
Low active chip selection signal
SCK
I
The (bit) serial clock (Max SCK clock rate is 13MHz.)
MOSI
I
Data signal from master output to slave input
MISO
O
Data signal from slave output to master input
Features
The SPI slave controller has eight commands that can be configured by SPI master transmit data. The commands
include “power-off”, “power-on”, “configure-write”, “configure-read”, “write-data”, “read-data”, “write-status”
and “read-status”. The command waveform is shown in Figure 8-3.
Figure 8-3. SPI slave controller commands waveform
SPI slave control flow
The SPI slave control flow is shown in Figure 8-4 .
Power On
CMD
Read Status
CMD
Read/Write Data
CMD
SLV_ON = 1
SPI Transmission
N
Y
Config Read/Write
CMD
Read Status
CMD
Read Status
CMD
Write Status CMD
(clear RD_ERR/WR_ERR)
N
RDWR_FINISH = 1 &
RD_ERR/WR_ERR = 0
Y
N
CFG_SUCESS = 1 &
TXRX_FIFO_RDY = 1
Power Off
CMD
Y
Figure 8-4. SPI slave control flow diagram
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First, SPI master transmits “power-on” command to turn on SPI slave controller then transmits “config-read/write”
command to configure the transfer data length and read/write address of the memory. After SPI slave is
configured, it can send/receive data package with SPI master by “read/write-data” command. Finally, use “poweroff” command to turn off SPI slave controller. In each state, SPI master transmits “read-status” command to poll
SPI slave situation. If SPI master detects error flag bit of state, it should send “write-status” command to clear the
bit and poll this bit until it turns low. Detailed descriptions of SPI slave command are shown in Table 8-2 and the
SPI slave status in
Table 8-3 .
Table 8-2. SPI slave command description
Cmd field [7:0]
CMD default
code
Data field
Usage
Read Data (RD)
8’b81
N bytes. Burst data payload
Master read data
Write Data (WD)
8’h06
N bytes. Burst data payload
Master write data
Read Status (RS)
8’h0A
1 byte
Master reads slave status register
Write Status (WS)
8’h08
1 byte
Master writes slave status register to clear error
bit (i.e. write 1 to clear).
Config Read (CR)
8‘h02
Config Write (CW)
8’h04
Power On (PWRO)
8’h0E
0 byte
Master uses this configure CMD to wake up
system and tell MCU to turn on SLAVE.
Power Off (PWRF)
8’h0C
0 byte
Master uses this configure CMD to wake up
system and tell MCU to turn off SLAVE.
4 bytes addr,
Master configure slave to start read data.
4 bytes data length
4 bytes addr,
Master configures slave to start write data.
4 bytes data length
Table 8-3. SPI slave status description (use RS command to poll SPI slave status)
Function
Bit
Interrupt
source
Usage
SLV_ON
0
Master polls this bit until slave is on after sending POWERON CMD.
N
SR_CFG_SUCCESS
1
Master checks this bit to know if CW/CR command is successful.
N
SR_TXRX_FIFO_RDY
2
If master configures read/write, when slave is ready to send/receive
data, the master can send RD/WD command. Clean: After SPI slave
receives CR/CW command.
N
SR_RD_ERR
3
After a RD command, master can read this bit to know if there is error
in the read transfer. If there is error, master should send WS command
to clear this bit and poll this bit until this bit turns 0.
Y
SR_WR_ERR
4
After a WD command, master can read this bit to know if there is error
in the write transfer. If there is error, master should send WS command
to clear this bit and poll this bit until this bit turns 0.
Y
SR_RDWR_FINISH
5
After RD/WD transaction, master can poll this bit to know if the
Y
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Function
Bit
Interrupt
Usage
source
read/write transfer is finished. Clean: After SPI slave receives CR/CW
command.
Indicates SPI slave does not receive or send data for some time.
SR_TIMOUT_ERR
6
SR_CMD_ERR
7
Y
If there is error, master should send WS command to clear this bit and
poll this bit until this bit turns 0.
If master sends an error CMD at the first byte, master can know the
error status through the received data. Clean: After SPI slave receives
correct command.
N
Figure 8-5. Config read/write (CR/CW) command format
The features of the SPI slave controller are:
•
Configurable transmitting and receiving bit order
•
The SPI slave controller automatically fetches the transmitted data (to be put on the MISO line) from
memory.
•
The SPI slave controller automatically stores the received data (from MOSI line) to memory.
•
Programmable byte length for transmission
•
Adjustable time out interrupt threshold, if the time that SPI slave does not receive or send data is
exceeded.
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8.1.2.
Block Diagram
APB BUS
AHB BUS
Control Register
tx0
tx1
(16byte)
(16byte)
MISO
TX
AHB
Interface
rx0
rx1
(16byte)
(16byte)
MOSI
RX
Figure 8-6. Block diagram of SPI slave controller
8.2.
Register Definition
There is one SPI slave controller in this SOC. The usage of the registers below is the same except that the base
address should be changed to respective one.
Module name: SPISLV Base address: (+A0150000h)
Address
A0150000
A0150004
A0150008
A015000C
A0150010
A0150014
A0150018
A015001C
A0150020
A0150024
A0150028
A015002C
A0150030
Name
Width
SPISLV_TRANS_TY
PE
SPISLV_TRANS_LE
NGTH
SPISLV_TRANS_AD
DR
SPISLV_CTRL
SPISLV_STATUS
SPISLV_TIMOUT_T
HR
SPISLV_SW_RST
SPISLV_BUFFER_B
ASE_ADDR
SPISLV_BUFFER_SI
ZE
SPISLV_IRQ
SPISLV_MISO_EAR
LY_HALF_SCK
SPISLV_CMD_DEFI
NE0
SPISLV_CMD_DEFI
NE1
Register Function
32
SPISLV Transfer Information Register
32
SPISLV Transfer Length Register
32
SPISLV Transfer Address Register
32
32
SPISLV Control Register
SPISLV Status Register
32
SPISLV Timeout Threshold Register
32
SPISLV SW Reset Register
32
SPISLV Buffer Base Address Register
32
SPISLV Buffer Size Register
32
SPISLV IRQ Register
32
SPISLV MISO EARLY HALF SCK Register
32
SPISLV Command0 Define
32
SPISLV Command1 Define
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A0150000
Bit
Name
Type
Reset
Bit
SPISLV_TRAN
SPISLV Transfer Information Register
S_TYPE
31
30
29
28
27
15
14
13
12
11
Name
Type
Reset
Bit(s) Mnemonic Name
10:9
8
7:0
DIR
DIR
23
22
21
20
19
18
17
16
10
9
8
7
6
5
4
3
2
1
0
0
0
0
DBG_AHB_
DIR
STATUS
RO
RO
1
0
0
CMD_RECEIVED
0
0
0
0
RO
0
31
Command spislv receives
SPISLV_TRAN
SPISLV Transfer Length Register
S_LENGTH
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
TRANS_LENGTH[31:16]
RO
0
0
0
0
0
0
0
0
0
0
TRANS_LENGTH[15:0]
RO
0
0
0
0
0
0
0
0
0
TRANS_LE TRANS_LENGTH
NGTH
31
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
1
5
4
3
2
SPISLV_TRAN
SPISLV Transfer Address Register
S_ADDR
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
0
0
0
0
0
0
TRANS_ADDR[15:0]
RO
0
0
0
0
0
0
16
0
Transfer length which SPI master has configured
1: 1 byte transfer
n: n byte transfer
TRANS_ADDR[31:16]
RO
0
0
0
0
0
0000000
1
Description
0
0
Bit(s) Mnemonic Name
31:0
24
DIR=1: DMA write memory
DIR=0: DMA read memory
CMD_RECECMD_RECEIVED
IVED
A0150008
Bit
Name
Type
Reset
Bit
Name
Type
Reset
25
Description
Bit(s) Mnemonic Name
31:0
26
DBG_AHB_DBG_AHB_STATUS 10: IDLE
STATUS
00: BUST transfer
01: SINGLE WORD transfer
11: SINGLE BYTE transfer
A0150004
Bit
Name
Type
Reset
Bit
Name
Type
Reset
0000200
0
0000000
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Description
TRANS_AD TRANS_ADDR
DR
Transfer address which SPI master has configured
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A015000C
Bit
0001000
0
SPISLV_CTRL SPISLV Control Register
31
30
29
28
27
26
25
24
23
22
15
14
13
12
11
10
9
8
7
6
21
20
19
18
17
5
4
3
2
1
Name
Type
Reset
Bit
SW_
POW
DECO TX_D RX_D
ER_O
DE_A MA_S MA_S TXMS RXMS
FF_I
Name DDRE W_R W_R BF
BF
NT_E
SS_E EADY EADY
N
N
Type
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
Bit(s) Mnemonic Name
16
15
RD_T
WR_ RD_C
RANS
CFG_ FG_F
_FINI
FINIS INISH
SH_I
H_IN _INT
NT_E
T_EN _EN
N
RW
RW
RW
0
0
0
TMO
UT_E
RR_I
NT_E
N
RW
0
16
POW
ER_O
N_IN
T_EN
RW
1
0
WR_
WR_ RD_D
TRAN
DATA ATA_
SIZE_
S_FI
_ERR ERR_ CPOL CPHA OF_A
NISH
_INT INT_
DDR
_INT
_EN EN
_EN
RW
RW
RW
RW
RW
RW
0
0
0
0
0
0
Description
POWER_O POWER_ON_INT_ Defines POWER ON command IRQ enable.
N_INT_EN EN
SW_DECO SW_DECODE_ADD Indicates whether software decode address is sent by SPI
DE_ADDRERESS_EN
master
SS_EN
0: SW will not decode address. HW should judge whether master is
configured successfully.
1: SW will decode address. HW does not need to judge whether master
is configured successfully.
14
TX_DMA_S TX_DMA_SW_REA Indicates SW has received IRQ after SPI master sends CR/RD
W_READY DY
CMD and configures data, prepares TX DATA and configures
DMA address; HW can start TX DMA transfer
13
RX_DMA_ RX_DMA_SW_REA Indicates SW has received IRQ after SPI master sends
SW_READ DY
CW/WR CMD and configures data, configures DMA address;
Y
HW can start RX DMA transfer
12
TXMSBF
TXMSBF
Indicates the data sent on MISO line is MSB first or not
Set RXMSBF to 1 for MSB first; otherwise set it to 0.
11
RXMSBF
RXMSBF
Indicates the data received from MOSI line is MSB first or not
Set TXMSBF to 1 for MSB first; otherwise set it to 0.
10
POWER_O POWER_OFF_INT_ Defines POWER OFF command IRQ enable
FF_INT_E EN
N
9
WR_CFG_F CW_FINISH_INT_
INISH_INT EN
_EN
8
RD_CFG_F CR_FINISH_INT_E Defines CR configure finishing IRQ enable
INISH_INT N
_EN
7
RD_TRANS RD_TRANS_FINIS
_FINISH_I H_INT_EN
NT_EN
Defines RD data finishing IRQ enable
6
TMOUT_E TMOUT_ERR_INT
RR_INT_E _EN
N
Defines TIMEOUT IRQ enable
5
WR_TRAN WR_TRANS_FINIS Defines WR data finishing IRQ enable
S_FINISH_ H_INT_EN
INT_EN
4
WR_DATA WR_DATA_ERR_I
_ERR_INT NT_EN
Defines CW configure finishing IRQ enable
Defines WR data error IRQ enable
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Bit(s) Mnemonic Name
_EN
Description
3
RD_DATA_ RD_DATA_ERR_IN Defines RD data error IRQ enable
ERR_INT_ T_EN
EN
2
CPOL
CPOL
Control bit of the SCK polarity
0: CPOL = 0
1: CPOL = 1
1
CPHA
CPHA
Defines SPI Clock Format 0 or SPI Clock Format 1 during
transmission
0: CPHA = 0
1: CPHA = 1
0
SIZE_OF_ADSIZE_OF_ADDR
DR
A0150010
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Defines CW/CR command format
0: Data filed includes 2 byte transfer address and 2 byte transfer length.
1: Data filed includes 4 byte transfer address & and byte transfer length.
SPISLV_STAT
SPISLV Status Register
US
0000000
0
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SR_C SR_C
SR_P
SR_TI SR_R
SR_T SR_C
SR_P
SR_W SR_R FG_ FG_R SR_C
SR_W SR_R
OWE
XRX_ FG_S SLV_
MOU DWR
OWE
R_FI D_FI WRIT EAD_ MD_E
R_ER D_ER
R_OF
T_ER _FINI
FIFO_ UCES ON
R
NISH NISH E_FI FINIS RROR
R
R_ON
F
S
R
SH
RDY
NISH H
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RW
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
Description
13
SR_POWE SR_POWER_ON
R_ON
Indicates whether SPI SLAVE receives power-on command
Cleared after SLV_ON = 0.
12
SR_POWE SR_POWER_OFF
R_OFF
Indicates whether SPI SLAVE receives power-off command
Cleared after SLV_ON = 1.
11
SR_WR_FI SR_WR_FINISH
NISH
Indicates whether SPI SLAVE write data is finished
Cleared after the next CFG read/write.
10
SR_RD_FI SR_RD_FINISH
NISH
Indicates whether SPI SLAVE read data is finished
Cleared after the next CFG read/write.
9
SR_CFG_W SR_CFG_WRITE_F Indicates whether SPI receive CFG READ CMD is finished
RITE_FINI INISH
Cleared after sw_rx_dma_ready.
SH
8
SR_CFG_R SR_CFG_READ_FI
EAD_FINIS NISH
H
Indicates whether SPI receive CFG READ CMD is finished
Cleared after sw_tx_dma_ready.
7
SR_CMD_E SR_CMD_ERROR
RROR
Indicates whether SPI master sends an error command
Used for SPI master to debug; cleared after SPI master sends a correct
command.
6
SR_TIMOU SR_TIMOUT_ERR
T_ERR
Indicates time-out and SPI slave does not receive or send
data for some time
If there is error, master must send WS command to clear this bit and
poll this bit until this bit turns to 0.
5
SR_RDWR SR_RDWR_FINISH Indicates whether SPI master RD/WR is finished
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Bit(s) Mnemonic Name
_FINISH
Description
After the master receives/sends all data, it can poll this bit to know if
the read/write transfer is finished.
Cleared after SPI slave receives CR/CW command.
4
SR_WR_E SR_WR_ERR
RR
Indicates SPI master WR error
After a RD command, master can read this bit to know if there is error
in the write transfer through RS.
If there is error, master must send WS command to clear this bit and
poll this bit until this bit turns to 0
3
SR_RD_ER SR_RD_ERR
R
Indicates SPI master RD error
After a RD command, master can read this bit to know if there is error
in the read transfer through RS.
If there is error, master must send WS command to clear this bit and
poll this bit until this bit turns to 0.
2
SR_TXRX_ SR_TXRX_FIFO_R Indicates TX/RX FIFO ready
FIFO_RDY DY
When CR, this bit used to indicate whether TX FIFO is ready. Master
polls this bit to know if the slave is ready to send data, then master can
send RD command.
When CW, this bit used to indicate whether RX FIFO is ready. Master
polls this bit to know if the slave is ready to send data, then master can
send WD command.
This bit will be cleared after SPI slave receives CR/CW command.
1
SR_CFG_S SR_CFG_SUCESS
UCESS
Indicates whether SPI master is configured successfully.
Master checks this bit to know if CW/CR command is successful.
0
SLV_ON
Defines SPI slave on
Master polls this bit until the slave is on.
A0150014
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
SLV_ON
SPISLV_TIMO
SPISLV Timeout Threshold Register
UT_THR
30
29
28
27
24
23
22
9
8
7
6
15
14
13
12
11
10
0
0
0
0
0
0
0
SPI_TIMOUT_THR[15:0]
RW
0
0
1
1
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
1
1
1
1
1
1
5
4
3
2
16
0
Description
SPI_TIMO TIMOUT_THR
UT_THR
A0150018
Bit
Name
Type
Reset
Bit
25
SPI_TIMOUT_THR[31:16]
RW
0
0
0
0
Bit(s) Mnemonic Name
31:0
26
000000F
F
Timeout threshold time
If the time that SPI slave does not receive or send data is exceeded,
there will be a timeout IRQ.
SPISLV_SW_R
SPISLV SW Reset Register
ST
0000000
0
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
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16
0
SPI_S
W_R
ST
RW
0
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Bit(s) Mnemonic Name
0
A015001C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
SPI_SW_R SW_RST
ST
31
Software reset bit; resets the state machine and data FIFO of
SPI controller. When this bit is 1, software reset is active
high. The default value is 0.
SPISLV_BUFF
ER_BASE_AD SPISLV Buffer Base Address Register
DR
30
29
28
27
21
10
9
8
7
6
5
12
11
0
0
0
0
0
0
SPI_BUFFER_BASE_ADDR[15:0]
RW
0
0
0
0
0
0
0
0
0
20
19
18
17
0
0
0
0
1
0
0
0
0
0
0
4
3
2
16
0
Description
SPI_BUFFE BUFFER_BASE_AD Configurable DMA address to access memory
R_BASE_A DR
DDR
31
SPISLV_BUFF
SPISLV Buffer Size Register
ER_SIZE
30
29
28
27
26
0000000
0
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
SPI_BUFFER_SIZE[31:16]
RW
0
0
0
0
0
0
0
0
0
0
SPI_BUFFER_SIZE[15:0]
RW
0
0
0
0
0
0
0
0
0
SPI_BUFFE BUFFER_SIZE
R_SIZE
SPISLV_IRQ
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Configurable BUFFER size indicating whether SPI master is configured
successfully
0000000
0
SPISLV IRQ Register
31
30
29
28
27
26
25
15
14
13
12
11
10
9
Type
Reset
Bit(s) Mnemonic
21
Description
Name
8
22
13
A0150024
Bit
Name
Type
Reset
Bit
23
14
0
Bit(s) Mnemonic Name
31:0
24
15
A0150020
Bit
Name
Type
Reset
Bit
Name
Type
Reset
25
SPI_BUFFER_BASE_ADDR[31:16]
RW
0
0
0
0
0
0
Bit(s) Mnemonic Name
31:0
26
0000000
0
Name
24
23
22
21
20
19
18
8
7
6
5
4
3
2
SR_TI
SR_W SR_R SR_P SR_P SR_W SR_R
MOU
R_ER D_ER WRO WRO R_FI D_FI
T_ER
R_IR R_IR N_IR FF_IR NISH NISH
R_IR
Q
Q
Q
_IRQ _IRQ
Q
Q
RC
RC
RC
RO
RC
RC
RC
0
0
0
0
0
0
0
17
16
1
0
SR_C SR_C
WR_ RD_F
FINIS INIS
H_IR H_IR
Q
Q
RC
RC
0
0
Description
SR_TIMOU SR_TIMOUT_ER
T_ERR_IR R_IRQ
Indicates timeout IRQ
Read clear
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Q
Name
Description
7
SR_WR_E
RR_IRQ
SR_WR_ERR_IR
Q
Indicates SPI master WR error IRQ
Read clear
6
SR_RD_ER SR_RD_ERR_IR
Q
R_IRQ
Indicates SPI master RD error IRQ
Read clear
5
SR_PWRO
N_IRQ
SR_PWRON_IRQ
Indicates slave receiving power-on IRQ
Cleared by SLV_ON = 1
4
SR_PWRO
FF_IRQ
SR_PWROFF_IR
Q
Indicates receiving power-off CMD IRQ
Read clear
3
SR_WR_FI SR_WR_FINISH
NISH_IRQ _IRQ
Indicates SPI master WR is finished
Read clear
2
SR_RD_FI
NISH_IRQ
Indicates SPI master RD finished IRQ
Read clear
1
SR_CWR_F SR_CWR_FINIS
INISH_IRQ H_IRQ
Indicates SPI master configure write transfer finished IRQ
Read clear
0
SR_CRD_F SR_CRD_FINISH
INISH_IRQ _IRQ
Indicates SPI master configure read transfer finished IRQ
Read clear
A0150028
Bit
Name
Type
Reset
Bit
SR_RD_FINISH_
IRQ
SPISLV_MISO
_EARLY_HAL SPISLV MISO EARLY HALF SCK Register
F_SCK
0000000
0
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s) Mnemonic
0
0
SPI_
MISO
_EAR
LY_H
ALF_
SCK
RW
0
Description
SPI_MISO_ MISO_EARLY_HA Defines whether to send miso early harf sck cycle
EARLY_HA LF_SCK
Used for improving SPI timing
LF_SCK
A015002C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Name
16
31
SPISLV_CMD_
SPISLV Command0 Define
DEFINE0
30
29
28
27
26
25
12
11
10
0
0
15
14
13
0
CMD_WS
RW
0
1
0
0
0
CMD_WR
RW
0
0
0
0
1
080A0681
24
23
22
21
0
0
0
0
CMD_RS
RW
0
1
0
CMD_RD
RW
0
0
9
8
1
0
7
1
6
0
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5
20
19
18
17
4
3
2
1
0
0
0
1
0
1
16
0
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
31:24 CMD_WS
CMD_WS
Defines Write Status (WR) command value
23:16 CMD_RS
CMD_RS
Defines Read Status (RS) command value
15:8
CMD_WR
CMD_WR
Defines Write Data (WR) command value
7:0
CMD_RD
CMD_RD
Defines Read Data (RD) command value
A0150030
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
SPISLV_CMD_
SPISLV Command1 Define
DEFINE1
30
0
29
28
27
26
12
11
10
CMD_POWEROFF
RW
0
0
1
1
15
14
13
0
0
0
CMD_CW
RW
0
0
1
25
0
0C0E040
2
24
23
22
0
0
0
CMD_POWERON
RW
0
0
1
1
0
CMD_CR
RW
0
0
9
8
0
0
7
0
6
21
20
19
18
17
5
4
3
2
1
0
0
1
0
0
Bit(s) Mnemonic Name
Description
31:24 CMD_POW CMD_POWEROFF
EROFF
Defines power-off command value
23:16 CMD_POW CMD_POWERON
ERON
Defines power-on command value
15:8
CMD_CW
CMD_CW
Defines Configure Write (CW) command value
7:0
CMD_CR
CMD_CR
Defines Configure Read (CR) command value
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16
0
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MT2523 Series Reference Manual
9. Inter-Integrated Circuit Controller
9.1.
General Description
Inter-Integrated Circuit (I2C) is a two-wire serial interface. The two signals are SCL and SDA. SCL is a clock signal
driven by the master. SDA is a bi-directional data signal that can be driven by either the master or the slave. This
generic controller supports the master role and conforms to the I2C specification.
9.1.1.
Feature
•
I2C compliant master mode operation
•
Adjustable clock speed for LS/FS mode operation
•
Supports 7-bit/10-bit addressing
•
Supports high-speed mode
•
Supports slave clock extension
•
Supports DMA mode
•
START/STOP/REPEATED START condition
•
Manual/DMA transfer mode
•
Multi-write per transfer (up to 15 data bytes)
•
Multi-read per transfer (up to 15 data bytes)
•
Multi-transfer per transaction
•
Combined format transfer with length change capability
•
Active drive/wired-and I/O configuration
9.1.2.
Manual/DMA Transfer Mode
The controller offers two types of transfer mode, manual and DMA.
When manual mode is selected, in addition to the slave address register, the controller has a built-in 8-byte deep
FIFO which allows MCU to prepare up to eight bytes of data for a write transfer, or read up to eight bytes of data
for a read transfer.
When DMA mode is enabled, the data to and from the FIFO is controlled via DMA transfer and therefore supports
up to 15 bytes of consecutive read or write, with the data read from or write to another memory space. When
DMA mode is enabled, the flow control mechanism is also implemented to hold the bus clk when FIFO underflow
or overflow condition is encountered.
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MT2523 Series Reference Manual
9.1.3.
Transfer Format Support
This controller is designed to be as generic as possible to support a wide range of devices that may utilize different
combinations of transfer formats. Here are the transfer format types that can be supported through different
software configurations.
Wording convention note
•
Transfer = Anything encapsulated within a Start and Stop or Repeated Start.
•
Transfer length = Number of bytes within the transfer
•
Transaction = This is the top unit. Everything combined equals one transaction.
•
Transaction length = Number of transfers to be conducted.
Master to slave dir
Slave to master dir
Single-byte access
Single Byte Write
S
Slave Address
A
DATA
A
P
A
DATA
nA
P
A
DATA
A
P
A/
nA
P
Single Byte Read
S
Slave Address
Multi-byte access
Multi Byte Write
S
Slave Address
N bytes + ack
Multi Byte Read
S
Slave Address
A
DATA
N bytes + ack/nak
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MT2523 Series Reference Manual
Multi-byte transfer + multi-transfer (same direction)
Multi Byte Write + Multi Transfer
Slave
Address
S
A
DATA
A
P
+ wait time +
P
+ wait time +
N bytes + ack/nak
X transfers
Multi Byte Read + Multi Transfer
Slave
Address
S
A
A/
nA
DATA
N bytes + ack/nak
X transfers
Multi-byte transfer + multi-transfer w RS (same direction)
Multi Byte Write + Multi Transfer + Repeated Start
Slave
Address
S
A
DATA
A
+
P
+
P
DATA
A
R
N bytes + ack/nak
X transfers
Multi Byte Read + Multi Transfer + Repeated Start
S
Slave
Address
+
A
DATA
A/
nA
R
N bytes + ack/nak
X transfers
Combined write/read with Repeated Start (direction change)
Note:
1. Only supports write and then read sequence. Read and then write is not supported.
2. In this format, transaction is 2
Combined Multi Byte Write + Multi Byte Read
S
Slave
Address
A
DATA
A
R
Slave
Address
A
N bytes + ack/nak
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P
M bytes + ack/nak
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MT2523 Series Reference Manual
9.1.4.
Programming Guide
Common transfer programmable parameters
Programmable Parameters
slave_addr
S
Slave
A
Address
slave_addr + dir change
rs_stop
DATA
A
DATA
A
delay_len
P/
RS
S
Slave
A
Address
DATA
A
DATA
A
P/
RS
transfer_len / aux transfer_len
transfer_len
transac_len
Output waveform timing programmable parameters
9.2.
Register Definition
There are four I2C channels in this SOC.
I2C number
Base address
Feature
Source clock
I2C0
0xA0210000
Supports DMA mode
Fix 26M
I2C1
0xA0220000
Supports DMA mode
Fix 26M
I2C2
0xA01B0000
Does not support DMA
mode
Bus clock
I2C_d2d
0xA2150000
Does not support DMA
mode
Bus clock
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MT2523 Series Reference Manual
Module name: I2C_SCCB_Controller base address: (+A0210000)
Address
A0210000
A0210004
Name
DATA_PORT
SLAVE_ADDR
Width
16
16
A0210008
INTR_MASK
16
A021000C
INTR_STAT
16
A0210010
CONTROL
16
A0210014
TRANSFER_LEN
16
A0210018
TRANSAC_LEN
16
A021001C
DELAY_LEN
16
A0210020
TIMING
16
A0210024
START
16
A021002C
A0210030
A0210038
CLOCK_DIV
FIFO_STAT
FIFO_ADDR_CLR
16
16
16
A0210040
IO_CONFIG
16
A0210048
HS
16
A0210050
A0210060
A0210064
A0210068
A021006C
SOFTRESET
SPARE
DEBUGSTAT
DEBUGCTRL
16
16
16
16
16
TRANSFER_LEN_
Register function
Data port register
Slave address register
Interrupt mask register
This register provides masks for the corresponding
interrupt sources as indicated in the intr_stat
register.
1 = Allow interrupt
0 = Disable interrupt
Note: When disabled, the corresponding interrupt
will not be asserted; however intr_stat will still be
updated with the status, i.e. mask does not affect
intr_stat register values.
Interrupt status register
When an interrupt is issued by the I2C controller, this
register will need to be read by MCU to determine the
cause for the interrupt. After this status is read and
appropriate actions are taken, the corresponding
interrupt source will need to be written 1 to clear.
Control register
Transfer length register (number of bytes per
transfer)
Transaction length register (number of transfers per
transaction)
Inter delay length register
Timing control register
LS/FS only. This register is used to control the output
waveform timing. Each half pulse width, i.e. each high
or low pulse, is equal to
(step_cnt_div+1)*(sample_cnt_div + 1)/13MHz
Start register
Clock divergence of I2C source clock
FIFO status register
FIFO address clear register
IO config register
This register is used to configure the I/O for the SDA
and SCL lines to select between normal I/O mode, or
open-drain mode to support wired-and bus.
High speed mode register
This register contains options for supporting high
speed operation features.
Each HS half pulse width, i.e. each high or low pulse,
is equal to (step_cnt_div+1)*(sample_cnt_div +
1)/13MHz
Soft reset register
SPARE
Debug status register
Debug control register
Transfer length register (number of bytes per
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Address
Name
Width
Register function
AUX
A0210000
Bit
Name
Type
Reset
15
transfer)
DATA_PORT
14
13
Data Port Register
12
11
Bit(s) Mnemonic Name
7:0
10
9
0000
8
7
6
5
0
0
0
4
3
DATA_PORT
RW
0
0
2
1
0
0
0
0
Description
FIFO access port
During master write sequences (slave_addr[0] = 0), this port can be
written by APB, and during master read sequences (slave_addr[0] = 1),
this port can be read by APB.
Note: Slave_addr must be set correctly before accessing FIFO.
DATA_POR
DATA_PORT
T
For debugging only: If the fifo_apb_debug bit is set, FIFO can be read
and written by the APB.
A0210004
Bit
Name
Type
Reset
15
SLAVE_ADDR Slave Address Register
14
13
12
11
Bit(s) Mnemonic Name
7:0
Bit
15
INTR_MASK
14
13
9
8
00BF
7
6
5
1
0
1
3
SLAVE_ADDR
RW
1
1
2
1
0
1
1
1
Specifies the slave address of the device to be accessed
Bit 0 is defined by the I2C protocol as a bit that indicates the direction
of transfer.
0: Master write
1: Master read
12
Interrupt Mask Register
11
10
9
8
7
0007
6
Name
Type
Reset
Overview
4
Description
SLAVE_AD
SLAVE_ADDR
DR
A0210008
10
5
4
3
2
1
This register provides masks for the corresponding interrupt sources as indicated in intr_stat
register. (1 = allow interrupt 0 = disable interrupt) Note that when disabled, the corresponding
interrupt will not be asserted; however the intr_stat will still be updated with the status, i.e. mask
does not affect intr_stat register values.
Bit(s) Mnemonic Name
Description
2
MASK_HS_MASK_HS_NACKE Setting this value to 0 will mask HS_NACKERR interrupt
NACKER
R
signal.
1
MASK_AC MASK_ACKERR
KERR
Setting this value to 0 will mask ACK_ERR interrupt signal.
0
MASK_TRA MASK_TRANSAC_
NSAC_COMCOMP
P
Setting this value to 0 will mask TRANSAC_COMP interrupt
signal.
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0
MASK
MASK
MASK _TRA
_HS_
_ACK NSAC
NACK
ERR _COM
ER
P
RW
RW
RW
1
1
1
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A021000C
Bit
15
INTR_STAT
14
13
Interrupt Status Register
12
11
10
9
8
7
0000
6
5
4
3
Name
Type
Reset
Overview
2
1
0
TRAN
HS_N
ACKE SAC_
ACKE
RR COM
RR
P
W1C W1C W1C
0
0
0
When an interrupt is issued by i2c controller, this register will need to be read by mcu to determine
the cause for the interrupt. After this status has been read and appropriate actions are taken, the
corresponding interrupt source will need to be write 1 cleared.
Bit(s) Mnemonic Name
Description
2
HS_NACKE HS_NACKERR
RR
This status will be asserted if HS master code nack error
detection is enabled. If enabled, HS master code nack err will
cause transaction to end and stop will be issued.
1
ACKERR
This status will be asserted if ACK error detection is enabled.
If enabled, ackerr will cause transaction to end and stop will
be issued.
0
TRANSAC_ TRANSAC_COMP
COMP
A0210010
Bit
15
ACKERR
CONTROL
14
13
This status will be asserted when a transaction has completed
successfully.
Control Register
12
11
10
9
0000
8
Name
Type
Reset
7
6
5
4
3
2
1
TRAN
ACKE
SFER
DIR_ CLK_
DMA RS_S
RR_D
_LEN
CHAN EXT_
_EN TOP
ET_E
_CHA
EN
GE
N
NGE
RW
RW
RW
RW
RW
RW
0
0
0
0
0
0
0
Overview
Bit(s) Mnemonic Name
Description
6
TRANSFER TRANSFER_LEN_C This options specifies whether or not to change the transfer
_LEN_CHA HANGE
length after the fist transfer completes. If enabled, the
NGE
transfers after the first transfer will use the transfer_len_aux
parameter.
5
ACKERR_D ACKERR_DET_EN
ET_EN
This option enables slave ack error detection. When enabled,
if slave ack error is detected, the master will terminate the
transaction by issuing a STOP condition then assert ackerr
interrupt. MCU should handle this case appropriately then
reset the FIFO address before reissuing transaction. If this
option is disabled, the controller will ignore slave ack error
and keep on scheduled transaction.
0: Disable
1: Enable
4
DIR_CHAN DIR_CHANGE
GE
This option is used for combined transfer format, where the
direction of transfer is to be changed from write to read after
the FIRST RS condition.
Note: When set to 1, the transfers after the direction change
will be based on the transfer_len_aux parameter.
0: Disable
1: Enable
3
CLK_EXT_ CLK_EXT_EN
EN
I2C spec allows slaves to hold the SCL line low if it is not yet
ready for further processing. Therefore, if this bit is set to 1,
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Bit(s) Mnemonic Name
Description
master controller will enter a high wait state until the slave
releases the SCL line.
2
DMA_EN
DMA_EN
By default, this is disabled, and FIFO data should be manually
prepared by MCU. This default setting should be used for
transfer sizes of less than 8 data bytes and no multiple
transfer is configured. When enabled, DMA requests will be
turned on, and the FIFO data should be prepared in memory.
1
RS_STOP
RS_STOP
In LS/FS mode, this bit affects multi-transfer transaction
only. It controls whether or not REPEATED-START condition
is used between transfers. The last ending transfer always
ends with a STOP.
In HS mode, this bit must be set to 1.
0: Use STOP
1: Use REPEATED-START
A0210014
Bit
Name
Type
Reset
15
TRANSFER_LE Transfer Length Register (Number of Bytes per
N
Transfer)
14
13
12
11
Bit(s) Mnemonic Name
3:0
Bit
Name
Type
Reset
15
14
13
12
11
Bit
Name
Type
Reset
15
DELAY_LEN
14
13
6
5
4
3
2
1
0
TRANSFER_LEN
RW
0
0
0
1
Indicates the number of data bytes to be transferred in 1
transfer unit (excluding slave address byte)
Note: The value must be set to be bigger than 1; otherwise no transfer
will take place.
10
9
8
7
6
0
0
5
4
3
2
TRANSAC_LEN
RW
0
0
0
0
0001
1
0
0
1
Indicates the number of transfers to be transferred in 1
transaction
Note: The value must be set to be bigger than 1; otherwise no transfer
will take place.
Inter Delay Length Register
12
Bit(s) Mnemonic Name
7:0
7
Description
TRANSAC_
TRANSAC_LEN
LEN
A021001C
8
TRANSAC_LE Transaction Length Register (Number of Transfers
N
per Transaction)
Bit(s) Mnemonic Name
7:0
9
Description
TRANSFER
TRANSFER_LEN
_LEN
A0210018
10
0001
DELAY_LE
DELAY_LEN
N
11
10
9
8
0002
7
6
5
0
0
0
4
3
DELAY_LEN
RW
0
0
2
1
0
0
1
0
Description
Sets up wait delay between consecutive transfers when
RS_STOP bit is set to 0
Unit: Half the pulse width
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A0210020
Bit
Name
Type
Reset
Bit
TIMING
Timing Control Register
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
1
1
DATA
Name _REA DATA_READ_TIM
E
D_AD
J
Type
RW
RW
Reset
0
0
0
1
Overview
SAMPLE_CNT_DI
V
0
RW
1
STEP_CNT_DIV
RW
1
0
0
0
0
LS/FS only. This register is used to control the output waveform timing. Each half pulse width (ie.
each high or low pulse) is equal to = step_cnt_div * (sample_cnt_div * f_clock_div Mhz)
Bit(s) Mnemonic Name
15
00001303
31
Description
DATA_REA DATA_READ_ADJ
D_ADJ
When set to 1, data latch in sampling time during master
reads are adjusted according to DATA_READ_TIME value.
Otherwise, by default, data is latched in at half of the high
pulse width point. This value must be set to less than or equal
to half the high pulse width.
14:12 DATA_REA DATA_READ_TIME This value is valid only when DATA_READ_ADJ is set to 1.
D_TIME
This can be used to adjust so that data is latched in at earlier
sampling points (assuming data is settled by then)
10:8
SAMPLE_C SAMPLE_CNT_DIV Used for LS/FS only. This adjusts the width of each sample.
NT_DIV
(sample width = sample_cnt_div*f_clock_div Mhz)
5:0
STEP_CNT STEP_CNT_DIV
_DIV
A0210024
Bit
START
15
14
Specifies the number of samples per half pulse width (i.e.
each high or low pulse)
Cannot be 0 .
Start Register
13
12
11
10
9
0000
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s) Mnemonic Name
0
START
A021002C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
0
STAR
T
RW
0
Description
Starts the transaction on the bus
It is auto de-asserted at the end of the transaction.
START
CLOCK_DIV
Clock divergence of I2C source clock
0004
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
CLOCK_DIV
RW
1
0
0
Overview
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Bit(s) Mnemonic Name
2:0
A0210030
Bit
Description
f_clock_div = source clock/(CLOCK_DIV + 1)
CLOCK_DI CLOCK_DIV
V
15
FIFO_STAT
14
13
FIFO Status Register
12
11
10
9
Name
RD_ADDR
WR_ADDR
Type
Reset
RO
RU
0
0
0
0
0
Bit(s) Mnemonic Name
0
0
8
0001
7
6
5
0
0
0
RU
0
11:8
WR_ADDR WR_ADDR
Current WR address pointer
Only bit [2:0] have physical meanings.
7:4
FIFO_OFFS FIFO_OFFSET
ET
wr_addr[3:0] - rd_addr[3:0]
1
WR_FULL WR_FULL
Indicates FIFO is full
0
RD_EMPTYRD_EMPTY
Indicates FIFO is empty
15
2
0
1
FIFO_ADDR_CL FIFO Address Clear Register
R
14
13
12
11
10
9
8
7
6
0000
5
4
3
2
1
Name
Type
Reset
Bit(s) Mnemonic Name
0
Bit
15
IO_CONFIG
14
13
0
FIFO
_ADD
R_CL
R
WO
0
Description
FIFO_ADD
FIFO_ADDR_CLR
R_CLR
A0210040
0
WR_ RD_E
FULL MPTY
RO
RO
0
1
Description
Current RD address pointer
Only bit [2:0] have physical meanings.
Bit
3
FIFO_OFFSET
15:12 RD_ADDR RD_ADDR
A0210038
4
When written 1'b1, a one pulse fifo_addr_clr will be generated to clear
the FIFO address to 0.
IO Config Register
12
11
10
9
8
0000
7
6
5
4
3
Name
IDLE
_OE_
EN
Type
Reset
RW
0
2
1
0
SDA_
SCL_I
IO_C
O_CO
ONFI
NFIG
G
RW
RW
0
0
Overview: This register is used to configure the I/O for the SDA and SCL lines to select between normal I/O mode or
open-drain mode to support wired-and bus.
Bit(s) Mnemonic Name
Description
3
IDLE_OE_ IDLE_OE_EN
EN
0: Does not drive bus in idle state
1: Drive bus in idle state
1
SDA_IO_C SDA_IO_CONFIG
0: Normal tristate I/O mode
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Bit(s) Mnemonic Name
ONFIG
0
SCL_IO_C SCL_IO_CONFIG
ONFIG
A0210048
Bit
Description
1: Open-drain mode
HS
15
14
High Speed Mode Register
13
12
11
HS_SAMPLE_CNT
_DIV
Name
Type
Reset
0
0: Normal tristate I/O mode
1: Open-drain mode
RW
0
10
9
8
7
HS_STEP_CNT_DI
V
0
0
RW
0
0102
6
5
4
3
2
MASTER_CODE
1
0
RW
0
0
1
0
HS_N
ACKE
HS_E
RR_D
N
ET_E
N
RW
RW
1
0
Overview: This register contains options for supporting high speed operation features Each HS half pulse width, i.e.
each high or low pulse, is equal to (step_cnt_div+1)*(sample_cnt_div + 1)/13MHz.
Bit(s) Mnemonic Name
Description
14:12 HS_SAMPL HS_SAMPLE_CNT_ When the high-speed mode is entered after the master code transfer is
completed, the sample width will become dependent on this parameter.
E_CNT_DI DIV
V
10:8
HS_STEP_ HS_STEP_CNT_DI
CNT_DIV V
When the high-speed mode is entered after the master code transfer is
completed, the number of samples per half pulse width will become
dependent on this value.
6:4
MASTER_C MASTER_CODE
ODE
This is the 3 bit programmable value for the master code to be
transmitted.
1
HS_NACKE HS_NACKERR_DE
RR_DET_E T_EN
N
Enables NACKERR detection during the master code
transmission
When enabled, if NACK is not received after the master code is
transmitted, the transaction will be terminated with a STOP condition.
0
HS_EN
Enables high-speed transaction
Note: rs_stop must be set to 1.
A0210050
Bit
15
HS_EN
SOFTRESET
14
13
Soft Reset Register
12
11
10
9
8
0000
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s) Mnemonic Name
0
Bit
Name
Type
Reset
Description
SOFT_RES
SOFT_RESET
ET
A0210060
15
SPARE
14
13
When written 1'b1, a one pulse soft reset will be used as synchronous
reset to reset the I2C internal hardware circuits.
SPARE
12
11
0000
10
9
8
7
6
5
4
3
0
Bit(s) Mnemonic Name
0
SOFT
_RES
ET
WO
0
2
1
SPARE
RW
0
0
0
0
Description
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Bit(s) Mnemonic Name
3:0
SPARE
A0210064
Bit
15
Description
SPARE
Reserved for future use
DEBUGSTAT
14
13
12
Debug Status Register
11
10
9
8
Name
Type
Reset
Bit(s) Mnemonic Name
0020
7
6
5
MAST
MAST
BUS_ ER_
ER_R
BUSY WRIT
EAD
E
RO
RO
RO
0
0
1
4
3
2
1
0
MASTER_STATE
0
0
RO
0
0
0
Description
7
BUS_BUSY SPARE
Reserved
6
MASTER_ MASTER_WRITE
WRITE
For debugging only
1: Current transfer is in the master write dir.
5
MASTER_R MASTER_READ
EAD
For debugging only
1: Current transfer is in the master read dir.
4:0
MASTER_S MASTER_STATE
TATE
(For debugging only) Reads back the current master_state.
0: Idle state
1: I2c master is preparing to send out the start bit, SCL=1, SDA=1.
2: I2C master is sending out the start bit, SCL=1, SDA=0.
3: I2C master/slave is preparing to transmit data bit, SCL=0, SDA=data
bit. (Data bit can be changed when SCL=0.)
4: I2C master/slave is transmitting data bit, SCL=1, SDA=data bit.
(Data bit is stable when SCL=1.)
5: I2C master/slave is preparing to transmit the ACK bit, SCL=0,
SDA=ack. (The ACK bit can be changed when SCL=0.)
6: I2C master/slave is transmitting the ACK bit, SCL=1, SDA=0. (The
ACK bit is stable when SCL=1.)
7: I2C master is preparing to send out stop bit or repeated-start bit,
SCL=0, SDA=0/1. (0: Stop bit; 1: Repeated-start bit)
8: I2C master is sending out stop bit or repeated-start bit, SCL=1,
SDA=1/0. (0: Repeated-start bit; 1: Stop bit)
9: I2C master is in delay start between two transfers, SCL=1, SDA=1.
10: I2C master is in FIFO wait state; For writing transaction, it means
FIFO is empty and I2C master is waiting for DMA controller to
write data into FIFo. For reading transaction, it means FIFO is full
and I2C master is waiting for DMA controller to read data from
FIFOo, SCL=0, SDA=don't care.
12: I2C master is preparing to send out data bit of master code. This
state is used only in high-speed transaction, SCL=0, SDA=data bit
of master code. (Data bit of master code can be changed when
SCL=0.)
13: I2C master is sending out data bit of master code. This state is used
only in high-speed transaction, SCL=1, SDA=data bit of master
code. (Data bit of master code is stable when SCL=1.)
14: I2C master/slave is preparing to transmit the NACK bit, SCL=0,
SDA=nack bit. (The NACK bit can be changed when SCL=0.) This
state is used only in high-speed transaction.
15: I2C master/slave is transmitting the NACK bit, SCL=1, SDA=1. This
state is used only in high-speed transaction.
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MT2523 Series Reference Manual
A0210068
Bit
15
DEBUGCTRL
14
13
12
Debug Control Register
11
10
9
8
7
0000
6
5
4
3
2
1
Name
Type
Reset
Bit(s) Mnemonic Name
0
FIFO
APB_
_APB
DEBU
_DEB
G_RD
UG
WO
RW
0
0
Description
1
APB_DEBU APB_DEBUG_RD
G_RD
0
FIFO_APB_FIFO_APB_DEBUG Used for trace 32 debugging
DEBUG
When using trace 32, and the memory map is shown, turning this bit on
will block the normal APB read access. The APB read access to the FIFO
will then be enabled by writing to apb_debug_rd.
0: Disable
1: Enable
A021006C
Bit
Name
Type
Reset
15
TRANSFER_LE Transfer Length Register (Number of Bytes per
N_AUX
Transfer)
14
13
Bit(s) Mnemonic Name
3:0
Only valid when fifo_apb_debug is set to 1
Writing to this register will generate a 1 pulsed FIFO APB RD signal for
reading the FIFO data.
12
11
10
9
8
7
6
5
4
3
2
0001
1
0
TRANSFER_LEN_AUX
RW
0
0
0
1
Description
Only valid when dir_change or transfer_len_change is set to
1. Indicates the number of data bytes to be transferred in 1
transfer unit (excluding slave address byte) for the transfers
following the direction change or transfer_len_change
TRANSFER TRANSFER_LEN_A If dir_change =1, the first write transfer length will depend on
_LEN_AUX UX
transfer_len, while the second read transfer length will depend on
transfer_len_aux. Dir change is always after the first transfer.
Similarly, transfer length change is always after the first transfer.
Note: The value must be set to be bigger than 1; otherwise no transfer
will take place.
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MT2523 Series Reference Manual
10. SD Memory Card Controller
10.1.
General Description
The controller fully supports the SD memory card bus protocol as defined in SD Memory Card Specification Part 1
Physical Layer Specification version 2.0 and eMMC 4.41 protocol.
Furthermore, the controller also partially supports the SDIO card specification version 2.0. However, the controller
can only be configured as the host of the SD memory card. Hereafter, the controller is also abbreviated as the SD
controller. The following are the main features of the controller.
•
Interface with MCU by APB bus
•
16/32-bit access on APB bus
•
16/32-bit access for control registers
•
32-bit access for FIFO
•
Built-in 32 bytes FIFO buffers for transmit and receive, FIFO is shared for transmit and receive
•
Built-in CRC circuit
•
CRC generation can be disabled
•
DMA supported
•
Interrupt capabilities
•
Data rate up to 48Mbps in serial mode, 48x4 Mbps in parallel model, the module is targeted at 48MHz
operating clock
•
Serial clock rate on SD/MMC bus is programmable
•
Card detection capabilities during sleep mode
•
Controllability of power for memory card
•
Does not support SPI mode for SD/MMC memory card
•
Does not support multiple SD/MMC memory cards
10.1.1.
Pin Assignment
The following lists pins required for the SD memory card. Table 10-1 shows how the pins are shared. Note that all
I/O pads have embedded both pull-up and pull-down resistors because they are shared by the SD memory card.
The pull-down resistors for these pins can be used for power saving. If optimal pull-up or pull-down resistors are
required on the system board, all embedded pull-up and pull-down resistors can be disabled by programming the
corresponding control registers. The VDDPD pin is used for power saving. Power for the SD memory card can be
shut down by programming the corresponding control register. The WP (Write Protection) pin is used to detect the
status of the Write Protection Switch on the SD memory card.
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MT2523 Series Reference Manual
Table 10-1. Sharing of pins for SD memory card controller
No.
Name
Type
MMC
SD
Description
1
SD_CLK
O
CLK
CLK
Clock
2
SD_DAT3
I/O/PP
CD/DAT3
CD/DAT3
Data Line [Bit 3]
3
SD_DAT0
I/O/PP
DAT0
DAT0
Data Line [Bit 0]
4
SD_DAT1
I/O/PP
DAT1
DAT1
Data Line [Bit 1]
5
SD_DAT2
I/O/PP
DAT2
DAT2
Data Line [Bit 2]
6
SD_CMD
I/O/PP
CMD
CMD
Command or bus state
7
SD_PWRON
O
-
-
VDD ON/OFF
8
SD_WP
I
-
-
Write protection switch in SD
9
SD_INS
I
VSS2
VSS2
Card detection
10.1.2.
Card Detection
For SD memory card, detection of card insertion/removal by hardware is supported, and a dedicated pin “INS” is
used to perform card insertion and removal for SD. The pin “INS” will be connected to the pin “VSS2” of a SD
connector (see Figure 10-1 ).
HOST
CARD
RPU
SW1
PAD
INS_IN
INS
RPD
SW2
Figure 10-1. Card detection for SD memory card
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MT2523 Series Reference Manual
10.1.3.
IO Pad Setting
Figure 10-2. IO Pinmux setting for MSDC
There are one set of dedicated pads for MSDC0 and two sets of pads for MSDC1. To switch between those two sets,
the GPIO and an extra input mux setting are needed. For GPIO settings, refer to GPIO specification. For input mux
setting, refer to the table below.
Address
Register Name
Field Name
MSB
LSB
A2010234
HW_MISC3
MSDC1_PAD_SEL
0
0
10.2.
Description
0: GPIO_A PAD for MSDC1
1: CAMERA PAD for MSDC1
Register Definition
There are two MSDCs in this SOC. The usage of the registers below is the same except that the base address should
be changed to respective one.
MSDC number
Base address
Feature
MSDC0
0xA0020000
Supports DMA, 4-bit data line
MSDC1
0xA0030000
Supports DMA, 4-bit data line
Module name: MSDC0 Base address: (+a0020000h)
Address
Name
A0020000
MSDC_CFG
A0020004
MSDC_STA
A0020008
MSDC_INT
A0020010
MSDC_DAT
A0020014
MSDC_IOCON
Width
32
32
32
32
32
Register Function
SD Memory Card Controller Configuration
Register
SD Memory Card Controller Status
Register
SD Memory Card Controller Interrupt
Register
SD Memory Card Controller Data Register
SD Memory Card Controller IO Control
Register
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Address
Name
Width
32
Register Function
SD Memory Card Controller IO Control
Register 1
SD Memory Card Controller Configuration
Register
SD Memory Card Controller Command
Register
SD Memory Card Controller Argument
Register
SD Memory Card Controller Status
Register
SD Memory Card Controller Response
Register 0
SD Memory Card Controller Response
Register 1
SD Memory Card Controller Response
Register 2
SD Memory Card Controller Response
Register 3
SD Memory Card Controller Command
Status Register
SD Memory Card Controller Data Status
Register
A0020018
MSDC_IOCON1
A0020020
SDC_CFG
A0020024
SDC_CMD
A0020028
SDC_ARG
A002002C
SDC_STA
A0020030
SDC_RESP0
A0020034
SDC_RESP1
A0020038
SDC_RESP2
A002003C
SDC_RESP3
A0020040
SDC_CMDSTA
A0020044
SDC_DATSTA
A0020048
SDC_CSTA
32
SD Memory Card Status Register
A002004C
SDC_IRQMASK0
32
SD Memory Card IRQ Mask Register 0
A0020050
SDC_IRQMASK1
32
SD Memory Card IRQ Mask Register 1
32
32
32
32
32
32
32
32
32
32
A0020054
SDIO_CFG
32
SDIO Configuration Register
A0020058
SDIO_STA
32
SDIO Status Register
A0020080
CLK_RED
32
CLK Latch Configuration Register
DAT_CHECKSUM
32
MSDC Rx Data Check Sum Register
A0020098
A0020000 MSDC_CFG
Bit
31
30
29
SD Memory Card Controller
Configuration Register
28
27
Nam
e
Type
Rese
t
Bit
25
24
FIFOTHD
RW
15
14
13
12
1
0
0
0
11
10
9
8
7
SC
LK
ON
SCLKF
Type
RW
0
0
0
0
23
CL
KS
RC
_P
AT
RW
0
Nam
e
Rese
t
26
0
0
0
0
22
6
CR
ED
04000020
21
20
19
18
17
16
VD
DP
D
RC
DE
N
DI
RQ
EN
PI
NE
N
DM
AE
N
INT
EN
RW
RW
RW
RW
RW
RW
0
0
0
0
0
0
5
ST
DB
Y
4
3
2
NO
CR
C
1
0
RS
T
MS
DC
RW
W1
C
RW
0
0
0
RW
RW
RW
0
0
1
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CLKSRC
RW
0
0
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
27:24 FIFOTHD
FIFOTHD
FIFO threshold. The register field determines
when to issue a DMA request. For write
transactions, DMA requests will be asserted if
the number of free entries in FIFO are larger
than or equal to the value in the register field.
For read transactions, DMA requests will be
asserted if the number of valid entries in FIFO
are larger than or equal to the value in the
register field. The register field must be set
according to the setting of data transfer count
in DMA burst mode. If single mode for DMA
transfer is used, the register field should be set
to 0b0001.
0000: Invalid.
0001: Threshold value is 1.
0010: Threshold value is 2.
0011~01111: ...
1000: Threshold value is 8.
others: Invalid
23
CLKSRC_PAT
CLKSRC_PAT
CLKSRC patch, when {CLKSRC_PAT,CLKSRC}
equal to
0: CLKSQ_F26M_CK
1: LFOSC_F26M_CK
2: MPLL_DIV3P5_CK (89.1MHz)
3: MPLL_DIV4_CK (78MHz)
4: MPLL_DIV5_CK (62.4MHz)
5: HFOSC_DIV3P5_CK (89.1MHz)
6: HFOSC_DIV4_CK (78MHz)
7: HFOSC_DIV5_CK (62.4MHz)
21
VDDPD
VDDPD
Controls the output pin VDDPD used for power
saving. The output pin VDDPD will control
power for memory card.
0: The output pin VDDPD will output logic low. The
power for memory card will be turned off.
1: The output pin VDDPD will output logic high. The
power for memory card will be turned on.
20
RCDEN
RCDEN
Controls the output pin RCDEN used for card
identification process when the controller is
for SD memory card. Its output will control the
pull down resistor on the system board to
connect or disconnect with the signal
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
CD/DAT3.
0: The output pin RCDEN will output logic low.
1: The output pin RCDEN will output logic high.
19
DIRQEN
DIRQEN
Enables data request interrupt. The register bit
is used to control if data request is used as an
interrupt source.
0: Data request is not used as an interrupt source.
1: Data request is used as an interrupt source.
18
PINEN
PINEN
Enables pin interrupt. The register bit is used
to control if the pin for card detection is used
as an interrupt source.
0: The pin for card detection is not used as an
interrupt source.
1: The pin for card detection is used as an interrupt
source.
17
DMAEN
DMAEN
Enables DMA. Note that if DMA capability is
disabled then application software must poll
the status of the register MSDC_STA for
checking any data transfer request. If DMA is
desired, the register bit must be set before
command register is written.
0: DMA request induced by various conditions is
disabled, no matter the controller is configured as the
host of either SD memory card or memory stick.
1: DMA request induced by various conditions is
enabled, no matter the controller is configured as the
host of either SD memory card or memory stick.
16
INTEN
INTEN
Enables interrupt. Note that if interrupt
capability is disabled, application software
must poll the status of the register MSDC_STA
to check for any interrupt request.
0: Interrupt induced by various conditions is disabled,
no matter the controller is configured as the host of
either SD memory card or memory stick.
1: Interrupt induced by various conditions is enabled,
no matter the controller is configured as the host of
either SD memory card or memory stick.
15:8
SCLKF
SCLKF
Controls clock frequency of serial clock on SD
bus. Denote clock frequency of SD bus serial
clock as fslave and clock frequency of the SD
controller as fhost which is 89.1MHz. Then the
value of the register field is as the following.
Note: The allowed maximum frequency of
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Bit(s) Mnemonic
Name
Description
fslave is 44.55MHz. While changing clock rate,
it needs "1T clock period before changing + 1T
clock period after change" for HW signal to resynchronize.
00000000b: fslave =(1/2)*fhost
00000001b: fslave = (1/(4*1))*fhost
00000010b: fslave = (1/(4*2))*fhost
00000011b: fslave = (1/(4*3))*fhost
00000100b~111111110b: ...
11111111b: fslave = (1/(4*255))*fhost
7
SCLKON
SCLKON
Serial clock always on. For debugging.
0: Serial clock not always on.
1: Serial clock always on.
6
CRED
CRED
Rising edge data. The register bit is used to
determine that serial data input is latched at
the falling edge or the rising edge of serial
clock. The default setting is at the rising edge.
If serial data have worse timing, set the
register bit to'1'. When the memory card has
worse timing on return read data, set the
register bit to '1'.
0: Serial data input is latched at the rising edge of
serial clock.
1: Serial data input is latched at the falling edge of
serial clock.
5
STDBY
STDBY
Standby mode. If the module is powered down,
operating clock to the module will be stopped.
At the same time, clock to card detection
circuitry will also be stopped. If detection of
memory card insertion and removal is desired,
write '1' to the register bit. If interrupt for
detection of memory card insertion and
removal is enabled, interrupt will take place
whenever memory is inserted or removed.
0: Standby mode is disabled.
1: Standby mode is enabled.
4:3
CLKSRC
CLKSRC
Specifies which clock is used as source clock of
memory card. Use MPLL (312MHz) or HFOSC
(312MHz) as source clock of memory card
when clock hopping is not enabled. If clock
hopping is enabled, MPLL clock's hopping rate
will be 0~-8% and HFOSC 312MHz (0~-8%).
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Bit(s) Mnemonic
Name
Description
00: CLKSQ_F26M_CK; MPLL_DIV5_CK (62.4MHz)
01: LFOSC_F26M_CK; HFOSC_DIV3P5_CK
(89.1MHz)
10: MPLL_DIV3P5_CK (89.1MHz);
HFOSC_DIV4_CK (78MHz)
11: MPLL_DIV4_CK (78MHz); HFOSC_DIV5_CK
(62.4MHz)
2
NOCRC
Disables CRC. 1 indicates that data transfer
without CRC is desired. For write data block,
data will be transmitted without CRC. For read
data block, CRC will not be checked. It is for
tests.
NOCRC
0: Data transfer with CRC is desired.
1: Data transfer without CRC is desired.
1
RST
Software reset. Writing 1 to the register bit will
cause internal synchronous reset of SD
controller but will not reset register settings.
RST should only be set when RST is equal to 0.
RST
0: Read 0 stands for the reset process is finished.
1: Write 1 to reset SD controller.
0
MSDC
Configures the controller as SD memory card
mode. CLK/CMD/DAT line will be pulled low
when SD memory card mode is disabled.
MSDC
0: Disable SD memory card
1: Enable SD memory card
A0020004 MSDC_STA
SD Memory Card Controller Status
Register
00000002
Bit
Nam
e
Type
Rese
t
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Nam
e
BU
SY
FIFOCNT
INT
DR
Q
BE
BF
Type
RO
RO
RO
RO
RO
RO
Rese
t
14
FIF
OC
LR
W1
C
0
0
0
1
0
0
0
0
0
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0
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MT2523 Series Reference Manual
Bit(s) Mnemonic
15
BUSY
Name
Description
BUSY
Status of the controller. If the controller is in
busy state, the register bit will be '1'. Otherwise
'0'.
0: The controller is in busy state.
1: The controller is in idle state.
14
FIFOCLR
FIFOCLR
Clears FIFO. Writing '1' to the register bit will
cause the content of FIFO clear and reset the
status of FIFO controller.
0: Read 0 stands for the FIFO clear process is finished.
1: Write 1 to clear the content of FIFO clear and reset
the status of FIFO controller.
7:4
FIFOCNT
FIFOCNT
FIFO count. The register field shows how many
valid entries are in FIFO.
0000: There is 0 valid entry in FIFO.
0001: There is 1 valid entry in FIFO.
0010: There are 2 valid entries in FIFO.
0011~0111: ...
1000: There are 8 valid entries in FIFO.
3
INT
INT
Indicates if any interrupt exists. While any
interrupt exists, the register bit still will be
active even if the register bit INTEN in the
register MSDC_CFG is disabled. SD controller
can interrupt MCU by issuing interrupt request
to interrupt controller, or software/application
polls the register endlessly to check if any
interrupt request exists in SD controller. When
the register bit INTEN in the register
MSDC_CFG is disabled, the second method will
be used. For read commands, it is possible that
timeout error takes place. Software can read
the status register to check if timeout error
takes place without OS time tick support or
data request is asserted.
Note: The register bit will be cleared when
reading the register MSDC_INT.
0: No interrupt request exists.
1: Interrupt request exists.
2
DRQ
DRQ
Indicates if any data transfer is required. When
any data transfer is required, the register bit
still will be active even if the register bit
DIRQEN in the register MSDC_CFG is disabled.
Data transfer can be achieved by DMA channel
alleviating MCU loading, or by polling the
register bit to check if any data transfer is
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
requested. When the register bit DIRQEN in
the register MSDC_CFG is disabled, the second
method will be used.
0: No DMA request exists.
1: DMA request exists.
1
BE
Indicates if FIFO in SD controller is empty
BE
0: FIFO in SD controller is not empty.
1: FIFO in SD controller is empty.
0
BF
Indicates if FIFO in SD controller is full
BF
0: FIFO in SD controller is not full.
1: FIFO in SD controller is full.
A0020008 MSDC_INT
Bit
Nam
e
Type
Rese
t
Bit
SD Memory Card Controller Interrupt
Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
5
4
SD
MC
IR
Q
RC
3
SD
DA
TIR
Q
RC
2
SD
CM
DI
RQ
RC
1
0
PI
NI
RQ
DI
RQ
RC
RC
0
0
0
0
0
Nam
e
SDI
OI
RQ
Type
Rese
t
RC
6
SD
R1
BI
RQ
RC
0
0
Bit(s) Mnemonic
7
00000000
SDIOIRQ
Name
Description
SDIOIRQ
SDIO interrupt. The register bit indicates if any
interrupt for SDIO exists. Whenever interrupt
for SDIO exists, the register bit will be set to '1'
if interrupt is enabled. It will be reset when the
register is read.
0: No SDIO interrupt
1: Interrupt for SDIO exists.
6
SDR1BIRQ
SDR1BIRQ
SD R1b response interrupt. The register bit will
be active when a SD command with R1b
response finished and the DAT0 line has
transited from busy to idle state. Single block
write commands with R1b response will cause
interrupt when the command is completed no
matter successfully or with CRC error.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
However, multi-block write commands with
R1b response will not cause the interrupt
because multi-block write commands are
always stopped by STOP_TRANS commands.
STOP_TRANS commands (with R1b response)
behind multi-block write commands will cause
the interrupt. Single block read command with
R1b response will cause the interrupt when the
command is completed but multi-block read
commands do not.
Note: STOP_TRANS commands (with R1b
response) behind multi-block read commands
will cause interrupt.
0: No interrupt for SD R1b response.
1: Interrupt for SD R1b response exists.
4
SDMCIRQ
SDMCIRQ
SD memory card interrupt. The register bit
indicates if any interrupt for SD memory card
exists. Whenever interrupt for SD memory
card exists, i.e. any bit in the register
SDC_CSTA is active, the register bit will be set
to '1' if interrupt is enabled. It will be reset
when the register is read.
Note: This bit will not trigger MSDC hardware
interrupt.
0: No SD memory card interrupt
1: SD memory card interrupt exists.
3
SDDATIRQ
SDDATIRQ
SD bus DAT interrupt. The register bit
indicates if any interrupt for SD DAT line
exists. Whenever interrupt for SD DAT line
exists, i.e. any bit in the register SDC_ DATSTA
is active, the register bit will be set to '1' if
interrupt is enabled. It will be reset when the
register is read.
0: No SD DAT line interrupt
1: SD DAT line interrupt exists.
2
SDCMDIRQ
SDCMDIRQ
SD bus CMD interrupt. The register bit
indicates if any interrupt for SD CMD line
exists. Whenever interrupt for SD CMD line
exists, i.e. any bit in the register SDC_CMDSTA
is active, the register bit will be set to '1' if
interrupt is enabled. It will be reset when the
register is read.
0: No SD CMD line interrupt
1: SD CMD line interrupt exists.
1
PINIRQ
PINIRQ
Pin change interrupt. The register bit indicates
if any interrupt for memory card
insertion/removal exists. Whenever memory
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
card is inserted or removed and card detection
interrupt is enabled, i.e. the register bit PINEN
in the register MSDC_CFG is set to '1', the
register bit will be set to '1'. It will be reset
when the register is read.
0: Otherwise
1: Card is inserted or removed.
0
DIRQ
Data request interrupt. The register bit
indicates if any interrupt for data request
exists. Whenever data request exists and data
request as an interrupt source is enabled, i.e.
the register bit DIRQEN in the register
MSDC_CFG is set to '1', the register bit will be
active. It will be reset when reading it. For
software, data requests can be recognized by
polling the register bit DRQ or by data request
interrupt. Data request interrupts will be
generated every FIFOTHD data transfer.
DIRQ
0: No data request interrupt
1: Data request interrupt occurs.
A0020010
MSDC_DAT
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
31
28
27
26
25
24
23
00000000
22
21
20
19
18
17
16
DATA
RW
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
DATA
RW
0
0
Bit(s) Mnemonic
31:0
29
SD Memory Card Controller Data
Register
DATA
0
0
0
0
0
0
0
Name
Description
DATA
Reads/writes data from/to FIFO inside SD
controller. Data access is in unit of 32 bits.
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MT2523 Series Reference Manual
A0020014
Bit
31
MSDC_IOCON
30
29
28
SD Memory Card Controller IO Control
Register
27
26
25
24
23
22
Nam
e
SAMPLE
DLY
FIXDLY
Type
Rese
t
Bit
RW
RW
15
Nam
e
CM
DR
E
Type
Rese
t
RW
10
HI
GH
_S
PE
ED
RW
0
0
14
13
12
11
21
SA
MP
ON
RW
20
CR
CD
IS
RW
19
CM
DS
EL
RW
18
010000C3
17
16
INTLH
DS
W
RW
RW
0
1
0
0
0
0
0
0
0
0
9
8
7
6
5
4
3
2
1
0
DMABUR
ST
SR
CF
G1
SR
CF
G0
ODCCFG1
ODCCFG0
RW
RW
RW
RW
RW
1
1
0
0
0
0
0
0
1
1
Bit(s) Mnemonic
Name
Description
25:24 SAMPLEDLY
SAMPLEDLY
The register is used for SW to select the turn
around delay cycle between write data end bit
and CRC status for SD card.
00: 0-T delay
01: 1-T delay
10: 2-T delay
11: 3-T delay
23:22 FIXDLY
FIXDLY
The register is used for SW to select the delay
cycle after clock fix high for the host controller
to SD card.
00: 0-T delay
01: 1-T delay
10: 2-T delay
11: 3-T delay
21
SAMPON
SAMPON
Data sample enable always on. The bit’s
suggested setting is 1 when feedback clock is
used and 0 when multiple phase clock is used.
0: Data sample enable not always on
1: Data sample enable always on.
20
CRCDIS
CRCDIS
Switches off data CRC check for SD read data
0: CRC check is on.
1: CRC check is off.
19
CMDSEL
CMDSEL
Determines whether the host should delay 1-T
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
to latch response from card
0: Host latches response without 1-T delay.
1: Host latches response with 1-T delay.
18:17
INTLH
INTLH
Selects latch timing for SDIO multi-block read
interrupt
00: Host latches INT at the second backend clock after
the end bit of current data block from card is received.
(default)
01: Host latches INT at the first backend clock after the
end bit of current data block from card is received.
10: Host latches INT at the second backend clock after
the end bit of current data block from card is received.
11: Host latches INT at the third backend clock after
the end bit of current data block from card is received.
16
DSW
DSW
Determines whether the host should latch data
with 1-T delay or not. For SD card, this bit is
suggested to be 0. For MSPRO cards, it is
suggested to be 1.
0: Host latches the data with 1-T delay.
1: Host latches the data without 1-T delay.
15
CMDRE
CMDRE
Determines whether the host should latch
response token (sent from card on CMD line )
at rising edge or falling edge of serial clock.
(T.B.D this bit is un-useful)
0: Host latches response at rising edge of serial clock
1: Host latches response at falling edge of serial clock
10
HIGH_SPEED
HIGH_SPEED
For high-speed mode when internal sample
clock is used. High-speed mode means that the
SD/MMC serial bus clock rate is bigger than
25MHz. The default speed mode means that the
SD/MMC serial bus clock rate is bigger than
25MHz.
0: Default speed
1: High speed
9:8
DMABURST
DMABURST
The register is used for SW to select burst type
when data transfer by DMA.
Note: Only single mode can support non-4N
bytes data transfer in read operation.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
00: Single mode
01: 4-beat incrementing burst
10: 8-beat incrementing burst
11: Reserved.
7
SRCFG1
Output driving capability the pins DAT0, DAT1,
DAT2 and DAT3
SRCFG1
0: Fast slew rate
1: Slow slew rate
6
SRCFG0
Output driving capability the pins CMD/BS and
SCLK
SRCFG0
0: Fast slew rate
1: Slow slew rate
5:3
ODCCFG1
Output driving capability the pins DAT0, DAT1,
DAT2 and DAT3
ODCCFG1
000: 4mA
001: 8mA
010: 12mA
011: 16mA
2:0
ODCCFG0
Output driving capability the pins CMD/BS and
SCLK
ODCCFG0
000: 4mA
001: 8mA
010: 12mA
011: 16mA
A0020018
Bit
31
MSDC_IOCON1
30
29
28
SD Memory Card Controller IO Control
Register 1
27
26
25
24
23
22
21
Nam
e
Type
Rese
t
20
19
18
PR
CF
G_
RS
T_
WP
RW
0
© 2015 - 2018 Airoha Technology Corp.
00022022
17
16
PRVAL_R
ST_WP
RW
1
0
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MT2523 Series Reference Manual
Bit
Nam
e
Type
Rese
t
15
14
PR
CF
G_
CK
RW
13
12
10
PR
CF
G_
CM
RW
PRVAL_C
K
0
RW
1
Bit(s) Mnemonic
18
11
PRCFG_RST/WP
0
0
9
8
PRVAL_C
M
RW
0
0
7
6
PR
CF
G_
DA
RW
0
5
4
PRVAL_D
A
RW
1
0
3
2
PR
CF
G_I
NS
RW
0
1
0
PRVAL_I
NS
RW
1
0
Name
Description
PRCFG_RST_WP
Pull up/down register configuration for pin
RST/WP. The default value is 0.
0: Pull up resistor in the I/O pad of the pin WP is
enabled.
1: Pull down resistor in the I/O pad of the pin WP is
enabled.
17:16
PRVAL_RST/WP
PRVAL_RST_WP
Pull up/down register value for pin RST/WP.
The default value is 10.
00: Pull up resistor and pull down resistor in the I/O
pad of the pin WP are all disabled.
01: Pull up/down resistor in the I/O pad of the pin WP
value is 47k.
10: Pull up/down resistor in the I/O pad of the pin WP
value is 47k.
11: Pull up/down resistor in the I/O pad of the pin WP
value is 23.5k.
14
PRCFG_CK
PRCFG_CK
Configures pull up/down register for pin CK.
The default value is 0.
0: Pull up resistor in the I/O pad of the pin CK is
enabled.
1: Pull down resistor in the I/O pad of the pin CK is
enabled.
13:12
PRVAL_CK
PRVAL_CK
Pull up/down register value for pin CLK. The
default value is 10.
00: Pull up resistor and pull down resistor in the I/O
pad of the pin CLK are all disabled.
01: Pull up/down resistor in the I/O pad of the pin CLK
value is 47k.
10: Pull up/down resistor in the I/O pad of the pin CLK
value is 47k.
11: Pull up/down resistor in the I/O pad of the pin CLK
value is 23.5k.
10
PRCFG_CM
PRCFG_CM
Configures pull up/down register for the pin
CM. The default value is 0.
0: Pull up resistor in the I/O pad of the pin CM is
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
enabled.
1: Pull down resistor in the I/O pad of the pin CM is
enabled.
9:8
PRVAL_CM
PRVAL_CM
Pull up/down register value for pin CMD/BS.
The default value is 00.
00: Pull up resistor and pull down resistor in the I/O
pad of the pin CMD/BS are all disabled.
01: Pull up/down resistor in the I/O pad of the pin
CMD/BS value is 47k.
10: Pull up/down resistor in the I/O pad of the pin
CMD/BS value is 47k.
11: Pull up/down resistor in the I/O pad of the pin
CMD/BS value is 23.5k.
6
PRCFG_DA
PRCFG_DA
Configures pull up/down register for pin DAT0,
DAT1, DAT2, DAT3. The default value is 0.
0: Pull up resistor in the I/O pad of the pin DAT is
enabled.
1: Pull down resistor in the I/O pad of the pin DAT is
enabled.
5:4
PRVAL_DA
PRVAL_DA
Pull up/down register value for pin DAT0,
DAT1, DAT2, DAT3. The default value is 10.
00: Pull up resistor and pull down resistor in the I/O
pad of the pin DAT are all disabled.
01: Pull up/down resistor in the I/O pad of the pin
DAT value is 47k.
10: Pull up/down resistor in the I/O pad of the pin
DAT value is 47k.
11: Pull up/down resistor in the I/O pad of the pin DAT
value is 23.5k.
2
PRCFG_INS
PRCFG_INS
Configures pull up/down register for pin INS.
The default value is 0
0: Pull up resistor in the I/O pad of the pin WP is
enabled.
1: Pull down resistor in the I/O pad of the pin WP is
enabled.
1:0
PRVAL_INS
PRVAL_INS
Pull up/down register value for pin INS. The
default value is 10.
00: Pull up resistor and pull down resistor in the I/O
pad of the pin INS are all disabled.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
01: Pull up/down resistor in the I/O pad of the pin INS
value is 47k.
10: Pull up/down resistor in the I/O pad of the pin INS
value is 47k.
11: Pull up/down resistor in the I/O pad of the pin INS
value is 23.5k.
A0020020 SDC_CFG
Bit
31
30
29
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
28
27
26
25
24
23
22
21
20
00008000
19
18
DTOC
WDOD
SDI
O
RW
RW
RW
17
MD
LE
N
RW
16
0
0
SIE
N
RW
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
BSYDLY
BLKLEN
RW
RW
1
0
Bit(s) Mnemonic
31:24
SD Memory Card Controller
Configuration Register
DTOC
0
0
0
0
0
0
0
0
0
Name
Description
DTOC
Data timeout counter. The period from finish
of the initial host read command or the last
read data block in a multiple block read
operation to the start bit of the next read data
block requires at least two serial clock cycles.
The counter is used to extend the period (Read
Data Access Time) in unit of 65,536 serial
clocks. See the register field description of the
register bit RDINT for reference.
00000000: Extend 65,536 more serial clock cycle.
00000001: Extend 65,536x2 more serial clock cycles.
00000010: Extend 65,536x3 more serial clock cycles.
00000011~11111110: ...
11111111: Extend 65,536x 256 more serial clock cycles.
23:20 WDOD
WDOD
Write data output delay. The period from finish
of the response for the initial host write
command or the last write data block in a
multiple block write operation to the start bit
of the next write data block requires at least
two serial clock cycles. The register field is
used to extend the period (Write Data Output
Delay) in unit of one serial clock.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
0000: No extension
0001: Extend one more serial clock cycle.
0010: Extend two more serial clock cycles.
0011~1110: ...
1111: Extend fifteen more serial clock cycles.
19
SDIO
SDIO
Enables SDIO
0: SDIO mode is disabled.
1: SDIO mode is enabled.
17
MDLEN
MDLEN
Enables multiple data line. The register can be
enabled only when SD memory card is applied
and detected by software application. It is the
responsibility of the application to program the
bit correctly when a MultiMediaCard is
applied. If a MultiMediaCard is applied and 4bit data line is enabled, the 4 bits will be
outputted every serial clock. Therefore, data
integrity will fail.
0: 4-bit data line is disabled.
1: 4-bit data line is enabled.
16
SIEN
SIEN
Enables serial interface. It should be enabled
as soon as possible before any command.
0: Serial interface for SD is disabled.
1: Serial interface for SD is enabled.
15:12
BSYDLY
BSYDLY
The register field is only valid for the
commands with R1b response. If the command
has a response of R1b type, SD controller must
monitor the data line 0 for card busy status
from the bit time that is two serial clock cycles
after the command end bit to check if
operations in SD memory card have finished.
The register field is used to expand the time
between the command end bit and end of
detection period to detect card busy status. If
time is up and there is no card busy status on
data line 0, the controller will abandon the
detection.
0000: No extension
0001: Extend one more serial clock cycle.
0010: Extend two more serial clock cycles.
0011~1110: ...
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
1111: Extend fifteen more serial clock cycles.
11:0
BLKLEN
It refers to Block Length. The register field
defines the length of one block in unit of byte in
a data transaction. The maximum value of
block length is 2048 bytes.
BLKLEN
000000000000: Reserved.
000000000001: Block length is 1 byte.
000000000010: Block length is 2 bytes.
000000000011~011111111110: ...
011111111111: Block length is 2047 bytes.
100000000000: Block length is 2048 bytes.
A0020024
Bit
SDC_CMD
31
30
29
SD Memory Card Controller Command
Register
28
27
26
25
24
23
22
21
20
19
00000000
18
17
Nam
e
Type
Rese
t
Bit
15
14
13
Nam
e
INT
C
ST
OP
Type
Rese
t
RW
0
0
11
10
RW
DTYPE
ID
RT
RSPTYP
RW
RW
RW
RW
RW
0
0
Bit(s) Mnemonic
16
16
CM
DF
AIL
RW
CMDFAIL
12
0
0
0
9
0
8
0
7
0
6
BR
EA
K
RW
5
0
0
4
3
2
1
0
0
0
0
CMD
RW
0
0
Name
Description
CMDFAIL
If 4-bit SDIO mode is enabled, when CMD/DAT
error occurs, set up this bit to select whether to
"wait stop command" or "wait data state
machine idle".
0: Wait stop command
1: Wait data state machine idle
15
INTC
INTC
Indicates if the command is GO_IRQ_STATE.
If the command is GO_IRQ_STATE, the period
between command token and response token
will not be limited.
0: The command is not GO_IRQ_STATE.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
1: The command is GO_IRQ_STATE.
14
STOP
STOP
Indicates if the command is a stop
transmission command.
0: The command is not a stop transmission command.
1: The command is a stop transmission command.
13
RW
RW
Defines the command is a read command or
write command. The register bit is valid only
when the command will cause a transaction
with data token.
0: The command is a read command.
1: The command is a write command.
12:11
DTYPE
DTYPE
Defines data token type for the command
00: No data token for the command
01: Single block transaction
10: Multiple block transaction. That is, the command is
a multiple block read or write command.
11: Stream operation. It should only be used when a
MultiMediaCard is applied.
10
IDRT
IDRT
Identification response time. The register bit
indicates if the command has a response with
NID (i.e. 5 serial clock cycles as defined in SD
Memory Card Specification Part 1 Physical
Layer Specification version 1.0) response time.
The register bit is valid only when the
command has a response token. Thus the
register bit must be set to '1' for CMD2
(ALL_SEND_CID) and ACMD41
(SD_APP_OP_CMD).
0: Otherwise.
1: The command has a response with NID response
time.
9:7
RSPTYP
RSPTYP
Defines response type for the command. For
commands with R1 and R1b response, the
register SDC_CSTA (not SDC_STA) will be
updated after response token is received. This
register SDC_CSTA contains the status of the
SD and will be used as response interrupt
sources.
Note: If CMD7 is used with all 0's RCA, RSPTYP
must be "000". Command "GO_TO_IDLE" also
has RSPTYP='000'.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
000: There is no response for the command. For
instance, broadcast command without response and
GO_INACTIVE_STATE command.
001: The command has R1 response. R1 response token
is 48-bit.
010: The command has R2 response. R2 response
token is 136-bit.
011: The command has R3 response. Even though R3 is
48-bit response, it does not contain CRC checksum.
100: The command has R4 response. R4 response
token is 48-bit. (only for MMC)
101: The command has R5 response. R5 response
token is 48-bit. (only for MMC)
110: The command has R6 response. R6 response
token is 48-bit.
111: The command has R1b response. If the command
has a response of R1b type, SD controller must monitor
the data line 0 for card busy status from the bit time
that is two or four serial clock cycles after the
command end bit to check if operations in SD memory
card have finished. There are two cases for detection of
card busy status. The first case is that the host stops
the data transmission during an active write data
transfer. The card will assert busy signal after the stop
transmission command end bit followed by four serial
clock cycles. The second case is that the card is in idle
state or under a scenario of receiving a stop
transmission command between data blocks when
multiple block write command is in progress. The
register bit is valid only when the command has a
response token.
6
BREAK
BREAK
Aborts pending MMC GO_IRQ_MODE
command. It is only valid for a pending
GO_IRQ_MODE command waiting for MMC
interrupt response.
0: Other fields are valid.
1: Break a pending MMC GO_IRQ_MODE command
in the controller. Other fields are invalid.
5:0
CMD
CMD
SD memory card command. Total 6 bits.
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MT2523 Series Reference Manual
A0020028
SDC_ARG
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
31
29
SD Memory Card Controller Argument
Register
28
26
Nam
e
Type
Rese
t
23
22
21
20
19
18
17
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
ARG
RW
0
0
0
0
ARG
0
0
0
0
Name
Description
ARG
Contains argument of SD memory card
command
SD Memory Card Controller Status
Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
RO
4
FE
DA
TB
US
Y
RO
3
FE
CM
DB
US
Y
RO
2
BE
DA
TB
US
Y
RO
1
BE
CM
DB
US
Y
RO
0
BE
SD
CB
US
Y
RO
0
0
0
0
0
0
WP
Bit(s) Mnemonic
15
24
RW
A002002C SDC_STA
Bit
Nam
e
Type
Rese
t
Bit
25
ARG
Bit(s) Mnemonic
31:0
27
00000000
WP
Name
Description
WP
Detects the status of Write Protection switch on
SD memory card. The register bit shows the
status of Write Protection switch on SD
memory card. There is no default reset value.
The pin WP (Write Protection) is also only
useful while the controller is configured for SD
memory card.
1: Write Protection switch on. It means that memory
card is desired to be write-protected.
0: Write Protection switch off. It means that memory
card is writable.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
4
FEDATBUSY
Name
Description
FEDATBUSY
Indicates if any transmission is going on DAT
line on SD bus. This bit indicates directly the
CMD line at card clock domain. For those
commands without data but still involving DAT
line, the register bit is useless. For example, if
an Erase command is issued, checking if the
register bit is '0' before issuing the next
command with data will not guarantee that the
controller is idle. In this situation, use the
register bit BESDCBUSY.
0: No transmission is going on DAT line on SD bus.
1: There exists transmission going on DAT line on SD
bus.
3
FECMDBUSY
FECMDBUSY
Indicates if any transmission is going on CMD
line on SD bus. This bit indicates directly the
CMD line at card clock domain.
0: No transmission is going on CMD line on SD bus.
1: There exists transmission going on CMD line on SD
bus.
2
BEDATBUSY
BEDATBUSY
Indicates if any transmission is going on DAT
line on SD bus.
0: Backend SDC controller gets the info that no
transmission is going on DAT line on SD bus.
1: Backend SDC controller gets the info that there
exists transmission going on DAT line on SD bus.
1
BECMDBUSY
BECMDBUSY
Indicates if any transmission is going on CMD
line on SD bus. This bit shows backend
controller's CMD busy state. The busy state is
sync from card clock domain to bus clock
domain.
0: Backend SDC controller gets the info that no
transmission is going on CMD line on SD bus.
1: Backend SDC controller gets the info that there
exists transmission going on CMD line on SD bus.
0
BESDCBUSY
BESDCBUSY
Indicates if SD controller is busy, i.e. any
transmission is going on CMD or DAT line on
SD bus. This bit shows backend controller's
SDC busy state. The busy state is sync from
card clock domain to bus clock domain.
0: Backend SD controller is idle.
1: Backend SD controller is busy.
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MT2523 Series Reference Manual
A0020030 SDC_RESP0
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
31
30
29
28
26
25
24
23
22
21
20
19
18
17
16
RO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
RESP_31_0
RO
0
0
0
0
RESP[31:0]
0
0
0
0
Description
RESP_31_0
SDC_RESP1
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
31
0
Name
A0020034
29
28
SD Memory Card Controller Response
Register 1
27
26
25
24
23
00000000
22
21
20
19
18
17
16
RESP_63_32
RO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
RESP_63_32
RO
0
0
0
0
Bit(s) Mnemonic
31:0
27
00000000
RESP_31_0
Bit(s) Mnemonic
31:0
SD Memory Card Controller Response
Register 0
0
0
0
Name
RESP[63:32]
SDC_RESP2
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
29
0
Description
RESP_63_32
A0020038
31
0
28
SD Memory Card Controller Response
Register 2
27
26
25
24
23
00000000
22
21
20
19
18
17
16
RESP_95_64
RO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
RESP_95_64
RO
0
0
0
0
0
0
0
0
0
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MT2523 Series Reference Manual
Bit(s) Mnemonic
31:0
Name
RESP[95:64]
Description
RESP_95_64
A002003C SDC_RESP3
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
31
30
29
28
27
26
24
23
22
21
20
19
18
17
16
RO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
RESP_127_96
RO
0
0
0
0
0
0
0
0
Name
RESP[127:96]
0
Description
RESP_127_96
A0020040 SDC_CMDSTA
Bit
Nam
e
Type
Rese
t
Bit
25
SD Memory Card Controller Command
Status Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
RS
PC
RC
ER
R
RC
1
0
CM
DT
O
CM
DR
DY
RC
RC
0
0
0
Nam
e
Type
Rese
t
Bit(s) Mnemonic
2
00000000
RESP_127_96
Bit(s) Mnemonic
31:0
SD Memory Card Controller Response
Register 3
RSPCRCERR
Name
Description
RSPCRCERR
CRC error on CMD detected. 1 indicates that SD
controller detects a CRC error after reading a
response from the CMD line.
0: Otherwise
1: SD controller detects a CRC error after reading a
response from the CMD line.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
1
CMDTO
Name
Description
CMDTO
Timeout on CMD detected. 1 indicates that SD
controller detects a timeout condition while
waiting for a response on the CMD line.
0: Otherwise
1: SD controller detects a timeout condition while
waiting for a response on the CMD line.
0
CMDRDY
For command without response, the register
bit will be '1' once the command is completed
on SD bus. For command with response, the
register bit will be '1' whenever the command is
issued onto SD bus and its corresponding
response is received without CRC error.
CMDRDY
0: Otherwise
1: Command with/without response finish successfully
without CRC error.
A0020044
SDC_DATSTA
SD Memory Card Controller Data
Status Register
Bit
Nam
e
Type
Rese
t
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Nam
e
Type
Rese
t
0
Bit(s) Mnemonic
9:2
DATCRCERR
0
0
00000000
DATCRCERR
DA
TT
O
RC
RC
0
BL
KD
ON
E
RC
0
0
0
0
0
0
0
Name
Description
DATCRCERR
CRC error on DAT detected. 1 indicates that SD
controller detected a CRC error for bit n after
reading a block of data from the DAT line or SD
signaled a CRC error after writing a block of
data to the DAT line.
0: Otherwise
1: SD controller detects a CRC error after reading a
block of data from the DAT line or SD signaled a CRC
error after writing a block of data to the DAT line.
Note that: n is 7~0 for 8-bits mode, each bit read and
clear individually.
1
DATTO
DATTO
Timeout on DAT detected. 1 indicates that SD
controller detected a timeout condition while
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
waiting for data token on the DAT line.
0: Otherwise
1: SD controller detects a timeout condition while
waiting for data token on the DAT line.
0
BLKDONE
Indicates the status of data block transfer
BLKDONE
0: Otherwise
1: A data block is successfully transferred.
A0020048 SDC_CSTA
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
31
30
29
28
26
24
23
00000000
22
21
20
19
18
17
16
RC
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
CSTA_31_0
RC
0
0
0
0
0
0
CSTA [31:0]
31
30
0
0
Name
29
0
Description
CSTA_31_0
A002004C SDC_IRQMASK0
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
25
CSTA_31_0
Bit(s) Mnemonic
31:0
SD Memory Card Status Register
27
28
27
SD Memory Card IRQ Mask Register 0
26
25
24
23
00000000
22
21
20
19
18
17
16
IRQMASK_31_0
RW
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
IRQMASK_31_0
RW
0
0
Bit(s) Mnemonic
0
0
0
0
Name
0
0
0
Description
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MT2523 Series Reference Manual
Bit(s) Mnemonic
31:0
Name
IRQMASK [31:0]
IRQMASK_31_0
A0020050
SDC_IRQMASK1
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
31
29
28
SD Memory Card IRQ Mask Register 1
27
26
25
24
23
22
00000000
21
20
19
18
17
16
IRQMASK_63_32
RW
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
IRQMASK_63_32
RW
0
0
0
0
Bit(s) Mnemonic
31:0
Description
0
0
0
0
Name
IRQMASK [63:32]
0
Description
IRQMASK_63_32
A0020054
SDIO_CFG
Bit
Nam
e
Type
Rese
t
Bit
31
30
29
28
27
26
SDIO Configuration Register
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
DIS
SE
L
RW
4
3
INT
CS
EL
RW
2
DS
BS
EL
RW
1
0
0
0
Nam
e
Type
Rese
t
0
Bit(s) Mnemonic
5
DISSEL
00000000
Name
Description
DISSEL
Selects data block interrupt source
INT
EN
RW
0
0: The host will detect SDIO interrupt during interrupt
period between two data blocks of multiple block data
access.
1: The host will ignore SDIO interrupt during interrupt
period between two data blocks of multiple block data
access.
3
INTCSEL
INTCSEL
Selects interrupt control
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
0: The host detects DAT1 low as SDIO interrupt.
1: The host detects DAT3/DAT2/DAT1/DAT0 4'b1101
as SDIO interrupt.
2
DSBSEL
Selects data block start bit
DSBSEL
0: Use data line 0 as start bit of data block and other
data lines are ignored.
1: Start bit of a data block is received only when data
line 0-3 all become low.
0
INTEN
Enables interrupt for SDIO
INTEN
0: Disable
1: Enable
A0020058
SDIO_STA
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
00000000
16
0
IR
Q
RO
0
Bit(s) Mnemonic
0
SDIO Status Register
IRQ
Name
Description
IRQ
SDIO interrupt exists on the data line. F, for
example, during the interrupt period, in the 1 bit data line mode, and DAT1/5 goes low from
high, this bit will become 1 from 0. I, if DAT1/5
goes high from low, this bit will become 0 from
1.
0: There is no SDIO interrupt existing on the data line.
1: There is SDIO interrupt existing on the data line.
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MT2523 Series Reference Manual
A0020080 CLK_RED
Bit
31
30
Nam
e
Type
Rese
t
Bit
29
CM
D_
RE
D
RW
00000000
27
26
25
24
23
22
21
20
19
18
17
16
12
11
10
9
8
6
CL
K_
LA
TC
H
RW
5
4
3
2
1
0
RW
7
CL
KP
AD
_R
ED
RW
0
0
0
0
15
14
13
DA
T_
RE
D
Nam
e
Type
Rese
t
Bit(s) Mnemonic
29
CLK Latch Configuration Register
28
CMD_RED
Name
Description
CMD_RED
Determines command response from card
output is latched at falling edge or rising edge
of internal clock (only effective when
CLK_LATCH = 1)
0: Internal clock rising edge to latch response
1: Internal clock falling edge to latch response
13
DAT_RED
DAT_RED
Determines input data from card output is
latched at falling edge or rising edge of internal
sample clock (only effective when CLK_LATCH
= 1)
0: Internal clock rising edge to latch data
1: Internal clock falling edge to latch data
7
CLKPAD_RED
CLKPAD_RED
Determines input data from card is latched at
falling edge or rising edge of the feedback clock
from pad. The suggested setting is 0 for
SD/eMMC serial clock is less than 25MHz and 1
for SD serial clock is higher than 25MHz. (only
effective when CLK_LATCH = 0)
0: Internal feedback clock rising edge to latch
data/response
1: Internal feedback clock falling edge to latch
data/response
6
CLK_LATCH
CLK_LATCH
Determines which clock to latch data from
card. The suggested setting is 0.
0: Internal feedback clock is used to latch
data/response from card.
1: Internal clock is used to latch data/response from
card.
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MT2523 Series Reference Manual
Bit(s) Mnemonic
Name
Description
A0020098 DAT_CHECKSUM
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
31
30
28
27
MSDC Rx Data Check Sum Register
26
25
24
23
22
00000000
21
20
19
18
17
16
DAT_CHECKSUM
RW
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
DAT_CHECKSUM
RW
0
0
Bit(s) Mnemonic
31:0
29
0
0
0
0
0
0
0
Name
Description
DAT_CHECKSUM
The checksum algorithm is 32 bit's XOR.
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MT2523 Series Reference Manual
11. USB2.0 High-Speed Device Controller
11.1.
General Description
USB20 controller supports HS (480M)/FS (12M)/LS (1.5M). The USB controller is configured for supporting 2
endpoints to receive packets and four endpoints to send packets except for endpoint 0. These endpoints can be
individually configured in the software to handle either Bulk transfers, Interrupt transfers or Isochronous
transfers. There are four DMA channels, and the embedded RAM size is configurable up to 3264 bytes. The
embedded RAM can be dynamically configured to each endpoint.
11.1.1.
Features
Feature
Speed
Enhanced feature
Endpoint
DMA channel
Embedded RAM
11.1.2.
Description
HS (480M)/FS (12M)/LS (1.5M)
Generic device
4 TX, 2 RX
4
3264
Programming Guide
DMA: USB20 includes a multi-channel DMA controller, configurable for up to 4 channels. This DMA controller
supports two DMA modes, referred to as DMA Modes 0 and 1. When operating in DMA Mode 0, the DMA
controller can only be programmed to load/unload one packet, so processor intervention is required for each
packet transferred over the USB. This mode can be used with any endpoint, whether it uses Control, Bulk,
Isochronous, or Interrupt transactions. When operating in DMA Mode 1, the DMA controller can be programmed
to load/unload a complete bulk transfer (which can be many packets). Once set up, the DMA controller will
load/unload all packets of the transfer, interrupting the processor only when the transfer has completed. DMA
Mode 1 can only be used with endpoints that use Bulk transactions. Each channel can be independently
programmed for the selected operating mode. (For detailed register information, refer to USB20 MAC register
map.)
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IDLE State
Set IntrRxE.Dn=0
Set RxCSR.D15 (AutoClear) = 1
Set RxCSR.D13 (DMAReqEnab) = 1
Set RxCSR.D11 (DMAReqMode) = 0
(If Host: Also set RxCSR.D14(AutoReq) = 1)
Set DMA registers as follows:
Set ADDR = Address to store data
Set COUNT = Amount of data
Set CNTL.D0, CNTL.D2, CNTL.D3 = 1
Set CNTL.D1 = 0
Set CNTL[D10,9] as required
Yes
Is COUNT = 0?
No
DMA controller asserts DMA_NINT.
Is DMAReq[m] high?
No
If necessary, clear RxPktRdy.
Yes
DMA controller request bus
IDLE State
Is AHB_HGRANT high?
No
Yes
DMA Controller reads from FIFO.
Write to ADDR and decrements COUNT.
RxPktRdy cleared
(Unless packet is less than RxMaxP)
Figure 11-1. Multiple packet RX flow (known size)
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IDLE State
Set IntrRxE.Dn=0
Set RxCSR.D15 (AutoClear) = 1
Set RxCSR.D13 (DMAReqEnab) = 1
Set RxCSR.D11 (DMAReqMode) = 1
(If Host: Also set RxCSR.D14(AutoReq) = 1)
Set DMA registers as follows:
Set ADDR = Address to store data
Set COUNT = Size of buffer
Set CNTL.D0, CNTL.D2, CNTL.D3 = 1
Set CNTL.D1 = 0
Set CNTL[D10,9] as required
No
Is Packet Size = RxMaxP?
Assert Rx Endpoint interrupt.
Yes
Is DMAReq[m] high?
No
Yes
On MC_NINT = 1,
Is IntrRx[n] = 1?
DMA controller request bus
Yes
Is AHB_HGRANT high?
No
Read packet from FIFO.
Clear RxPktRdy.
Yes
DMA controller reads from FIFO.
Write to ADDR and decrements COUNT.
IDLE State
RxPktRdy cleared
Figure 11-2. Multiple packet RX flow (unknown size)
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No
MT2523 Series Reference Manual
11.1.3.
Block Diagram
DMA
Requests
Endpoint Control
EP0 Control
(Peripheral)
EP0 Control
(Host)
XCLK
EP1- 15
Control
Combine Wndpoints
Transmit
CPU
INTERFACE
Interrupt
Control
Receive
Host Transaction
Scheduler
Interrupts
Common
Regs
Cycle Control
Packet
Encoder/Decoder
UTM
Data Sync
(HCLK to XCLK)
UTMI+Level2
PHY
Packet Encode
Data Sync
(XCLK to HCLK)
Packet Decode
HS Negotiation
RAM Controller
Rx
Buff
Rx
Buff
Tx
Buff
Tx
Buff
FIFO
decoder
CRC gen/check
HNP/SRP
ULPI
Wrapper
AHB Slave
DMA Controller
(Optional)
Cycle Control
AHB Master
Timers
USB1.1
PHY
RAM
Figure 11-3. Block diagram
11.2.
Register Definition
Module name: Unified_USB Base address: (+A0900000h)
Name
Widt
h
A0900000
FADDR
8
Function Address Register (Device mode only)
A0900001
POWER_PERI
8
Power Management Register
A0900002
INTRTX
16
Tx Interrupt Status Register
A0900004
INTRRX
16
Rx Interrupt Status Register
A0900006
INTRTXE
16
Tx Interrupt Enable Register
Address
Register Function
A0900008
INTRRXE
16
Rx Interrupt Enable Register
A090000A
INTRUSB
8
Common USB Interrupt Register
A090000B
INTRUSBE
8
Common USB Interrupt Enable Register
A090000C
FRAME
16
Frame Number Register
A090000E
INDEX
8
Endpoint Selection Index Register
A090000F
TESTMODE
8
Test Mode Enable Register
A0900010
TXMAP
16
TXMAP Register
A0900012
TXCSR_PERI
16
Tx CSR Register
A0900016
RXCSR_PERI
16
RX CSR Register
A0900018
RXCOUNT
16
Rx Count Register
A090001A
TXTYPE
8
TxType Register
A090001B
TXINTERVAL
8
TxInterval Register
A090001C
RXTYPE
8
RxType Register
A090001D
RXINTERVAL
8
RxInterval Register
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Module name: Unified_USB Base address: (+A0900000h)
A090001F
FIFOSIZE
8
Configured FIFO Size Register
A0900020
FIFO0
32
USB Endpoint 0 FIFO Register
A0900024
FIFO1
32
USB Endpoint 1 FIFO Register
A0900028
FIFO2
32
USB Endpoint 2 FIFO Register
A0900060
DEVCTL
8
Device Control Register
A0900061
PWRUPCNT
8
Power Up Counter Register
A0900062
TXFIFOSZ
8
Tx FIFO Size Register
A0900063
RXFIFOSZ
8
Rx FIFO Size Register
A0900064
TXFIFOADD
16
Tx FIFO Address Register
A0900066
RXFIFOADD
16
Rx FIFO Address Register
A090006C
HWCAPS
16
Hardware Capability Register
A090006E
HWSVERS
16
Version Register
A0900070
BUSPERF1
16
USB Bus Performance Register 1
A0900072
BUSPERF2
16
USB Bus Performance Register 2
A0900074
BUSPERF3
16
USB Bus Performance Register 3
A0900078
EPINFO
8
Number of Tx and Rx Register
A0900079
RAMINFO
8
Width of RAM and Number of DMA Channel Register
A090007A
LINKINFO
8
Delay to be Applied Register
A090007B
VPLEN
8
Vbus Pulsing Charge Register
A090007C
HS_EOF1
8
Time Buffer Available on HS Transaction Register
A090007D
FS_EOF1
8
Time Buffer Available on FS Transaction Register
A090007E
LS_EOF1
8
Time Buffer Available on LS Transaction Register
A090007F
RST_INFO
8
Reset Information Register
A0900080
RXTOG
16
Rx Data Toggle Set/Status Register
A0900082
RXTOGEN
16
Rx Data Toggle Enable Register
A0900084
TXTOG
16
Tx Data Toggle Set/Status Register
A0900086
TXTOGEN
16
Tx Data Toggle Enable Register
A09000A0
USB_L1INTS
32
USB Level 1 Interrupt Status Register
A09000A4
USB_L1INTM
32
USB Level 1 Interrupt Mask Register
A09000A8
USB_L1INTP
32
USB Level 1 Interrupt Polarity Register
A09000AC
USB_L1INTC
32
USB Level 1 Interrupt Control Register
A0900102
CSR0_PERI
16
EP0 Control Status Register
A0900108
COUNT0
16
EP0 Received Bytes Register
A090010A
Type0
8
EP0 Type Register
A090010B
NAKLIMT0
8
NAK Limit Register
A090010C
SRAMCONFIG
SIZE
16
SRAM Size Register
A090010E
HBCONFIGDA
TA
8
High Bind-width Configuration Register
A090010F
CONFIGDATA
8
Core Configuration Register
A0900110
TX1MAP
16
TX1MAP Register
A0900112
TX1CSR_PERI
16
Tx1 CSR Register
A0900114
RX1MAP
16
RX1MAP Register
A0900116
RX1CSR_PERI
16
RX1 CSR Register
Rx1 Count Register
A0900118
RX1COUNT
16
A090011A
TX1TYPE
8
Tx1Type Register
A090011B
TX1INTERVAL
8
Tx1Interval Register
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Module name: Unified_USB Base address: (+A0900000h)
A090011C
RX1TYPE
8
Rx1Type Register
A090011D
RX1INTERVAL
8
Rx1Interval Register
A090011F
FIFOSIZE1
8
EP1 Configured FIFO Size Register
A0900120
TX2MAP
16
TX2MAP Register
A0900122
TX2CSR_PERI
16
Tx2 CSR Register
A0900124
RX2MAP
16
RX2MAP Register
A0900126
RX2CSR_PERI
16
RX2 CSR Register
A0900128
RX2COUNT
16
Rx2 Count Register
A090012A
TX2TYPE
8
Tx2Type Register
A090012B
TX2INTERVAL
8
Tx2Interval Register
A090012C
RX2TYPE
8
Rx2Type Register
A090012D
RX2INTERVA
L
8
Rx2Interval Register
A090012F
FIFOSIZE2
8
EP2 Configured FIFO Size Register
A0900130
TX3MAP
16
TX3MAP Register
A0900132
TX3CSR_PERI
16
Tx3 CSR Register
A090013A
TX3TYPE
8
Tx3Type Register
A090013B
TX3INTERVAL
8
Tx3Interval Register
A090013F
FIFOSIZE3
8
EP3 Configured FIFO Size Register
A0900140
TX4MAP
16
TX4MAP Register
A0900142
TX4CSR_PERI
16
Tx4 CSR Register
A090014A
TX4TYPE
8
Tx4Type Register
A090014B
TX4INTERVA
L
8
Tx4Interval Register
A090014F
FIFOSIZE4
8
EP4 Configured FIFO Size Register
A0900200
DMA_INTR
32
DMA Interrupt Status Register
A0900204
DMA_CNTL_0
16
DMA Channel 0 Control Register
A0900208
DMA_ADDR_
0
32
DMA Channel 0 Address Register
A090020C
DMA_COUNT
_0
32
DMA Channel 0 Byte Count Register
A0900210
DMA_LIMITE
R
32
DMA Limiter Register
A0900214
DMA_CNTL_1
16
DMA Channel 1 Control Register
A0900218
DMA_ADDR_1
32
DMA Channel 1 Address Register
A090021C
DMA_COUNT
_1
32
DMA Channel 1 Byte Count Register
A0900220
DMA_CONFIG
32
DMA Configuration Register
A0900224
DMA_CNTL_2
16
DMA Channel 2 Control Register
A0900228
DMA_ADDR_
2
32
DMA Channel 2 Address Register
A090022C
DMA_COUNT
_2
32
DMA Channel 2 Byte Count Register
A0900234
DMA_CNTL_3
16
DMA Channel 3 Control Register
A0900238
DMA_ADDR_
3
32
DMA Channel 3 Address Register
A090023C
DMA_COUNT
_3
32
DMA Channel 3 Byte Count Register
A0900304
EP1RXPKTCO
UNT
16
EP1 RxPktCount Register
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MT2523 Series Reference Manual
Module name: Unified_USB Base address: (+A0900000h)
A0900308
EP2RXPKTCO
UNT
16
EP2 RxPktCount Register
A0900604
TM1
16
Test Mode 1 Register
A0900608
HWVER_DAT
E
32
HW Version Control Register
A0900684
SRAMA
32
SRAM Address Register
A0900688
SRAMD
32
SRAM Data Register
A0900690
RISC_SIZE
32
RISC Size Register
A0900700
RESREG
32
Reserved Register
A0900730
OTG20_CSRL
8
OTG20 Related Control Register L
A0900731
OTG20_CSRH
8
OTG20 Related Control Register H
A090000
0
FADDR
Bit
Name
Type
Reset
15
12
11
10
9
8
7
6
5
4
1
0
0
FUNCTION_ADDRE
SS
FAddr is an 8-bit register that should be written with the 7-bit address of the
peripheral part of the transaction. When the USB2.0 controller is used in
Peripheral mode (DevCtl.bit2=0), this register should be written with the
address received through a SET_ADDRESS command, which will then be used
for decoding the function address in subsequent token packets. When the
USB2.0 controller is used in host mode (DevCtl.bit2=1), function address will be
configured by TXFUNCADDR and RXFUNCADDR.
15
POWER_PER
I
14
13
12
Power Management Register
11
10
9
8
20
5
4
Name
ISO
UP
DA
TE
SO
FTC
ON
N
HS
EN
AB
Type
Reset
RW
0
RW
0
RW
1
6
2
Description
6
7
3
FUNCTION_ADDRESS
RW
0
0
0
0
0
7
Bit(s)
00
Name
A0900001
Bit
13
0
Bit(s)
6:0
14
Function Address Register (Device mode
only)
3
2
1
HS
MO
DE
RE
SET
RE
SU
ME
SU
SPE
ND
MO
DE
RU
0
RU
0
RW
0
RU
0
0
EN
AB
LES
US
PE
ND
M
RW
0
Name
Description
ISOUPDATE
When set by the CPU, the USB2.0 controller will wait for an SOF
token from the time TxPktRdy is set before sending the packet. If an
IN token is received before an SOF token, a 0 length data packet will
be sent.
Note: Only valid in peripheral mode. This bit only affects endpoints performing
Isochronous transfers.
SOFTCONN
If Soft Connect/Disconnect feature is enabled, the USB D+/D- lines
will be enabled when this bit is set by the CPU and tri-stated when
this bit is cleared by the CPU.
In Peripheral FS mode, clearing Softcon bit may need execution of latency until
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Bit(s)
Name
Description
USB BUS SE0 is detected by HW.
Execution Latency ~= 1ms, such as SOF Packet EOP or RESET
In Peripheral HS mode, clearing Softcon bit still needs execution of latency until
USB BUS SE0 is detected by HW.
Execution Latency ~= 1us, such as HS idle
Note: This bit should only be set in peripheral mode. For host mode, this bit will
be set if DEVCTL[0] session bit is set. This bit should also be cleared if session
bit is cleared by CPU.
HSENAB
When set by the CPU, the USB2.0 controller will negotiate for highspeed mode when the device is reset by the hub. If not set, the device
will only operate in full-speed mode.
4
HSMODE
When set, this read-only bit indicates high-speed mode successfully
negotiated during USB reset.
In peripheral mode, becomes valid when USB reset is completed (as indicated by
USB reset interrupt).
In host mode, becomes valid when Reset bit is cleared. Remains valid for the
duration of the session.
Note: Allowance is made for Tiny-J signaling in determining the transfer speed
to select.
3
RESET
This bit is set when Reset signaling is present on the bus.
Note: This bit is read/written from the CPU in host mode but read-only in
peripheral mode.
2
RESUME
Set by the CPU to generate Resume signaling when the function is in
suspend mode. The CPU should clear this bit after 10ms (max. 15ms)
to end Resume signaling. In host mode, this bit is also automatically
set when Resume signaling from the target is detected when the
USB2.0 controller is suspended.
1
SUSPENDMODE
In host mode, this bit is set by the CPU to enter suspend mode.
In peripheral mode, this bit is set on entryo into suspend mode. Cleared when
the CPU reads the interrupt register or sets up the Resume bit above.
0
ENABLESUSPENDM
Set by the CPU to enable the SUSPENDM output
5
A090000
2
Bit
15
Tx Interrupt Status Register
INTRTX
14
13
12
11
10
9
8
7
6
5
Name
Type
Reset
0000
4
EP4
_T
X
W1C
0
3
EP3
_T
X
W1C
0
Bit(s)
Name
Description
4
EP4_TX
T4 Endpoint N interrupt event
3
EP3_TX
T3 Endpoint N interrupt event
2
EP2_TX
T2 Endpoint N interrupt event
1
EP1_TX
T1 Endpoint N interrupt event.
0
EP0
Endpoint 0 interrupt event
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2
EP2
_T
X
W1C
0
1
EP1
_T
X
W1C
0
0
EP
0
W1C
0
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MT2523 Series Reference Manual
A090000
4
Bit
15
Rx Interrupt Status Register
INTRRX
14
13
12
11
10
9
8
7
6
0000
5
4
3
Name
Type
Reset
Bit(s)
Name
Description
2
EP2_RX
R2 Endpoint N interrupt event
1
EP1_RX
R1 Endpoint N interrupt event
A090000
6
Bit
15
13
12
11
10
9
8
7
6
5
Name
Type
Reset
4
EP4
_T
XE
RW
1
3
EP3
_T
XE
RW
1
Name
Description
4
EP4_TXE
1'b0: Disable Tx Endpoint N interrupt event
1'b1: Enable Tx Endpoint N interrupt event
3
EP3_TXE
1'b0: Disable Tx Endpoint N interrupt event
1'b1: Enable Tx Endpoint N interrupt event
2
EP2_TXE
1'b0: Disable Tx Endpoint N interrupt event
1'b1: Enable Tx Endpoint N interrupt event
1
EP1_TXE
1'b0: Disable Tx Endpoint N interrupt event
1'b1: Enable Tx Endpoint N interrupt event
0
EP0_E
1'b0: Disable Tx Endpoint N interrupt event
1'b1: Enable Tx Endpoint N interrupt event
Bit
15
14
13
12
2
EP2
_T
XE
RW
1
1
EP1
_T
XE
RW
1
Rx Interrupt Enable Register
INTRRXE
11
10
9
8
7
6
5
0
EP
0_
E
RW
1
FFFE
4
3
Name
Type
Reset
Bit(s)
Name
Description
2
EP2_RXE
1'b0: Disable Rx Endpoint N interrupt event
1'b1: Enable Rx Endpoint N interrupt event
1
EP1_RXE
1'b0: Disable Rx Endpoint N interrupt event
1'b1: Enable Rx Endpoint N interrupt event
© 2015 - 2018 Airoha Technology Corp.
0
FFFF
Bit(s)
A090000
8
1
EP1
_R
X
W1C
0
Tx Interrupt Enable Register
INTRTXE
14
2
EP2
_R
X
W1C
0
2
EP2
_R
XE
RW
1
1
EP1
_R
XE
RW
1
0
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MT2523 Series Reference Manual
A090000
A
Bit
Common USB Interrupt Register
INTRUSB
15
14
13
12
11
10
9
8
Name
Type
Reset
7
VB
US
ER
RO
R
W1C
0
00
6
5
4
3
SES
SR
EQ
DIS
CO
N
CO
NN
SO
F
W1C
0
W1C
0
W1C
0
W1C
0
2
RE
SET
_B
AB
LE
W1C
0
1
0
RE
SU
ME
SU
SPE
ND
W1C
0
W1C
0
Bit(s)
Name
Description
7
VBUSERROR
Set when VBus drops below the VBus Valid threshold during a
session
Only valid when USB2.0 controller is 'A' device.
6
SESSREQ
Set when Session Request signaling has been detected
Only valid when USB2.0 controller is 'A' device.
5
DISCON
Set in host mode when a device disconnect is detected. Set in
peripheral mode when a session ends.
Valid at all transaction speeds.
4
CONN
Set when a device connection is detected
Only valid in host mode. Valid at all transaction speeds.
3
SOF
Set when a new frame starts.
2
RESET_BABLE
Set in peripheral mode when Reset signaling is detected on the bus.
Set in host mode when babble is detected.
Note: Only active after the first SOF has been sent.
1
RESUME
Set when Resume signaling is detected on the bus when the USB2.0
controller is in suspend mode.
0
SUSPEND
Set when Suspend signaling is detected on the bus
Only valid in peripheral mode.
A090000
B
Bit
Common USB Interrupt Enable Register
INTRUSBE
15
14
13
Name
Type
Reset
12
11
10
9
8
7
VB
US
ER
RO
R_
E
RW
0
06
6
5
4
3
SES
SR
EQ
_E
DIS
CO
N_
E
CO
NN
_E
SO
F_E
RW
0
RW
0
RW
0
RW
0
Bit(s)
Name
Description
7
VBUSERROR_E
Enables VBusError interrupt
6
SESSREQ_E
Enables SessReq interrupt
5
DISCON_E
Enables Discon interrupt
4
CONN_E
Enables Conn interrupt
3
SOF_E
Enables SOF interrupt
2
RESET_BABLE_E
Enables Reset/Babble interrupt
1
RESEUM_E
Enables Resume interrupt
0
SUSPEND_E
Enables Suspend interrupt
© 2015 - 2018 Airoha Technology Corp.
2
RE
SET
_B
AB
LE
_E
RW
1
1
0
RE
SE
UM
_E
SU
SPE
ND
_E
RW
1
RW
0
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MT2523 Series Reference Manual
A090000
C
Bit
Name
Type
Reset
15
Frame Number Register
FRAME
14
13
12
11
10
9
8
7
0
0
0
0
6
5
0000
4
FRAME_NUMBER
RU
0
0
0
3
2
1
0
0
0
0
0
Bit(s)
Name
Description
10:0
FRAME_NUMBER
Frame is a 11-bit read-only register that holds the last received frame
number.
A090000
E
Bit
Name
Type
Reset
15
Bit(s)
3:0
14
13
10
9
8
7
6
5
4
3
2
1
0
SELECTED_ENDPOINT
RW
0
0
0
0
SELECTED_ENDPO
INT
Each TX endpoint and RX endpoint has its own set of control/status
registers located between USB+100h - USB+1FFh. In addition, one
set of TX control/status and one set of RX control/status registers
appear at USB+010h - USB+01Fh. Index is a 4-bit register that
determines which endpoint control/status registers are accessed.
Before accessing an endpoint's control/status registers at USB+010h
- USB+01Fh, the endpoint number should be written to the Index
register to ensure that the correct control/status registers appear in
the memory map.
15
Test Mode Enable Register
TESTMODE
14
13
Type
Reset
7
11
Description
Name
Bit(s)
12
00
Name
A090000
F
Bit
Endpoint Selection Index Register
INDEX
12
11
10
9
8
7
FO
RC
E_
HO
ST
RW
0
6
FIF
O_
AC
CES
S
A0
0
00
5
4
FO
RC
E_
FS
FO
RC
E_
HS
RW
0
RW
0
3
TES
T_P
AC
KE
T
RW
0
2
1
TES
T_
K
TES
T_J
RW
0
RW
0
0
TES
T_S
E0
_N
AK
RW
0
Name
Description
FORCE_HOST
The CPU sets up this bit to instruct the core to enter host mode when
the Session bit is set, regardless of whether it is connected to any
peripheral. The state of the CID input, HostDisconnect and LineState
signals are ignored. The core will then remain in host mode until the
Session bit is cleared, even if a device is disconnected, and if the
Force_Host bit remains set, will re-enter host mode the next time the
Session bit is set. When in this mode, the status of the HOSTDISCON
signal from the PHY may be read from bit7 of the ACTLR0.DevCtl
register. The operating speed is determined by the Force_HS and
Force_FS bits as the following. USB2.0 IP only
Force_HS Force_FS Operating Speed
0
0
Low Speed
0
1
Full Speed
1
0
High Speed
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MT2523 Series Reference Manual
Bit(s)
Name
Description
1
1
Undefined
6
FIFO_ACCESS
The CPU sets up this bit to transfer the packet in Endpoint 0 TX FIFO
to Endpoint 0 RX FIFO. It is cleared automatically. USB2.0 IP only.
5
FORCE_FS
The CPU sets up this bit either in conjunction with bit7 above or to
force the USB2.0 controller into full-speed mode when it receives a
USB reset.
4
FORCE_HS
The CPU sets up this bit either in conjunction with bit7 above or to
force the USB2.0 controller into high-speed mode when it receives a
USB reset. USB2.0 IP only.
3
TEST_PACKET
(HS_MODE) The CPU sets up this bit to enter Test_Packet test mode.
In this mode, the USB2.0 controller repetitively transmits on the bus
a 53-byte test packet, the form of which is defined in the Universal
Serial Bus Specification Revision 2.0, Section 7.1.20.
Note: The test packet has a fixed format and must be loaded into
Endpoint 0 FIFO before the test mode is entered. USB2.0 IP only.
2
TEST_K
(HS_MODE) The CPU sets up this bit to enter Test_K test mode. In
this mode, the USB2.0 controller transmits a continuous K on the
bus. USB2.0 IP only.
1
TEST_J
(HS_MODE) The CPU sets up this bit to enter Test_J test mode. In
this mode, the USB2.0 controller transmits a continuous J on the
bus. USB2.0 IP only.
0
TEST_SE0_NAK
(HS_MODE) The CPU sets up this bit to enter Test_SE0_NAK test
mode. In this mode, the USB2.0 controller remains in high-speed
mode but responds to any valid IN token with a NAK. USB2.0 IP only.
A0900010
Bit
Name
Type
Reset
15
TXMAP
14
13
TXMAP Register
12
0
M_1
RW
11
10
9
0
0
0
8
7
6
0000
5
4
3
2
MAXIMUM_PAYLOAD_TRANSACTION
RW
0
0
0
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
12:11
M_1
Maximum payload size for indexed TX endpoint, M-1 Packet
multiplier m maximum payload transaction register
MAXIMUM_PAYLO
AD_TRANSACTION
The TxMaxP register defines the maximum amount of data that can
be transferred through the selected TX endpoint in a single
operation. There is a TxMaxP register for each TX endpoint (except
for Endpoint 0). Bit10~0 define (in bytes) the maximum payload
transmitted in a single transaction. The value set can be up to 1024
bytes but is subject to the constraints placed by the USB Specification
on packet sizes for Bulk, Interrupt and Isochronous transfers in fullspeed and high-speed operations. Where the option of highbandwidth Isochronous endpoints or of packet splitting on Bulk
endpoints has been taken when the core is configured, the register
includes either 2 or 5 further bits that define a multiplier m which is
equal to one more than the value recorded. In the case of Bulk
endpoints with the packet splitting option enabled, the multiplier m
can be up to 32 and defines the maximum number of 'USB' packets
(i.e. packets for transmission over the USB) of the specified payload
into which a single data packet placed in the FIFO should be split,
prior to transfer. (If the packet splitting option is not enabled, bit1513 will not be implemented and bit12-11 (if included) will be ignored.)
Note: The data packet is required to be an exact multiple of the payload specified
by bit10~0, which is itself required to be one of 8, 16, 32, 64 or (in the case of
high speed transfers) 512 bytes. For Isochronous endpoints operating in highspeed mode and with the high-bandwidth option enabled, m may only be either
2 or 3 (corresponding to bit 11 set or bit 12 set, respectively) and it specifies the
10:0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
maximum number of such transactions that can take place in a single
microframe. If either bit11 or bit12 is non-0, the USB2.0 controller will
automatically split any data packet written to the FIFO into up to 2 or 3 'USB'
packets, each containing the specified payload (or less). The maximum payload
for each transaction is 1024 bytes, so this allows up to 3072 bytes to be
transmitted in each microframe. (For Isochronous/Interrupt transfers in fullspeed mod, bits11 and 12 are ignored.) The value written to bit10~0 (multiplied
by m in the case of high-bandwidth Isochronous transfers) should match the
value given in the wMaxPacketSize field of the Standard Endpoint Descriptor for
the associated endpoint (see USB Specification Revision 2.0, Chapter 9). A
mismatch will cause unexpected results. The total amount of data represented by
the value written to this register (specified payload * m) should not exceed the
FIFO size for the TX endpoint and should not exceed half the FIFO size if
double-buffering is required. If this register is changed after packets have been
sent from the endpoint, the TX endpoint FIFO should be completely flushed
(using the FlushFIFO bit in TxCSR) after writing the new value to this register.
A0900012
Bit
TXCSR_PERI
15
14
13
11
10
FR
CD
AT
AT
OG
DM
AR
EQ
MO
DE
RW
0
RW
0
Name
AU
TO
SET
ISO
DM
AR
EQ
EN
Type
Reset
RW
0
RW
0
RW
0
Bit(s)
Tx CSR Register
12
9
8
SET
TX
PK
TR
DY
_T
WI
CE
A1
0
0000
7
6
5
4
3
2
1
0
INC
OM
PT
X
CL
RD
AT
AT
OG
SE
NT
ST
AL
L
SE
ND
ST
AL
L
FL
US
HFI
FO
UN
DE
RR
UN
FIF
ON
OT
EM
PT
Y
TX
PK
TR
DY
A1
0
A0
0
A1
0
RW
0
A0
0
A1
0
RU
0
A0
0
Name
Description
AUTOSET
If The CPU sets up this bit, TxPktRdy will be automatically set when
data of the maximum packet size (value in TxMaxP) is loaded into the
TxFIFO. If a packet of less than the maximum packet size is loaded,
TxPktRdy will have to be set manually.
14
ISO
The CPU sets up this bit to enable the TX endpoint for Isochronous
transfers and clears it to enable the TX endpoint for Bulk or
Interrupt transfers.
Note: This bit only takes effect in peripheral mode. In host mode, it
always returns 0.
12
DMAREQEN
The CPU sets up this bit to enable the DMA request for TX endpoint.
FRCDATATOG
The CPU sets up this bit to force the endpoint data toggle to switch
and the data packet to be cleared from the FIFO, regardless of
whether an ACK is received. This can be used by Interrupt TX
endpoints used to communicate rate feedback for Isochronous
endpoints.
10
DMAREQMODE
The CPU sets up this bit to select DMA request mode 1 and clears it to
select DMA request mode 0.
Note: This bit should not be cleared either before or in the same cycle as the
DMAReqEn bit is cleared.
8
SETTXPKTRDY_TW
ICE
Indicates TxPktRdy had been set while it is 1'b1 already. Write 0 to
clear it.
INCOMPTX
When the endpoint is used for high-bandwidth
Isochronous/Interrupt transfers, this bit will be set to indicate where
a large packet has been split into 2 or 3 packets for transmission but
insufficient IN tokens have been received to send all the parts.
Note: In anything other than a high-bandwidth transfer, this bit will
always return 0.
15
11
7
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MT2523 Series Reference Manual
Bit(s)
Name
Description
Write 0 to clear it.
CLRDATATOG
The CPU writes 1 to this bit to reset the endpoint data toggle to 0.
SENTSTALL
This bit is set when a STALL handshake is transmitted. The FIFO will
be flushed and TX interrupt generated if enabled and the TxPktRdy
bit is cleared. The CPU should clear this bit.
Write 0 to clear it.
SENDSTALL
The CPU writes 1 to this bit to issue a STALL handshake to an IN
token. The CPU clears this bit to terminate the stall condition.
Note: This bit has no effect where the endpoint is used for
Isochronous transfer. Otherwise, CPU should wait for SENTSTALL
interrupt to be generated before clearing the SENDSTALL bit.
3
FLUSHFIFO
The CPU writes 1 to this bit to flush the latest packet from the
endpoint TxFIFO. The FIFO pointer is reset, the TxPktRdy bit is
cleared, and an interrupt is generated. May be set simultaneously
with TxPktRdy to abort the packet that is currently loaded into the
FIFO.
Note: FlushFIFO should only be used when TxPktRdy is set. In other cases, it
may cause data corruption. If the FIFO is double-buffered, FlushFIFO may need
to be set twice to completely clear the FIFO.
2
UNDERRUN
The USB sets up this bit if an IN token is received when the TxPktRdy
bit not set. The CPU should clear this bit. Write 0 to clear it.
1
FIFONOTEMPTY
The USB sets up this bit when there is at least 1 packet in the TxFIFO.
This bit will be asserted automatically when TXPKTRDY is set by CPU
and de-asserted when CPU flushes FIFO or sends a STALL packet.
TXPKTRDY
The CPU sets up this bit after loading a data packet into the FIFO. It is
cleared automatically when a data packet has been transmitted. An
interrupt is also generated at this point (if enabled). TxPktRdy is also
automatically cleared (interrupt is generated) prior to loading a
second packet into a double-buffered FIFO.
6
5
4
0
A0900014
Bit
Name
Type
Reset
Bit(s)
12:11
10:0
15
RXMAP
14
13
RXMAP Register
12
0
M_1
RW
11
10
9
0
0
0
8
7
6
0000
5
4
3
2
MAXIMUM_PAYLOAD_TRANSACTION
RW
0
0
0
0
0
0
0
1
0
0
0
Name
Description
M_1
Maximum payload size for indexed RX endpoint , M-1 Packet
multiplier m
MAXIMUM_PAYLO
AD_TRANSACTION
The RxMaxP register defines the maximum amount of data that can
be transferred through the selected RX endpoint in a single
operation. There is a RxMaxP register for each RX endpoint (except
for Endpoint 0). Bit10~0 define (in bytes) the maximum payload
transmitted in a single transaction. The value set can be up to 1024
bytes but is subject to the constraints placed by the USB Specification
on packet sizes for Bulk, Interrupt and Isochronous transfers in fullspeed and high-speed operations.
Where the option of high-bandwidth Isochronous endpoints or of combining
Bulk packets has been taken when the core is configured, the register includes
either 2 or 5 further bits that define a multiplier m which is equal to one more
than the value recorded.
For Bulk endpoints with the packet combining option enabled, the multiplier m
can be up to 32 and defines the number of USB packets of the specified payload
which are to be combined into a single data packet within the FIFO. (If the
packet splitting option is not enabled, bit15-bit13 will not be implemented and
bit12-bit11 (if included) will be ignored.) For Isochronous endpoints operating in
high-speed mode and with the high-bandwidth option enabled, m may only be
either 2 or 3 (corresponding to bit 11 set or bit 12 set, respectively) and it
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MT2523 Series Reference Manual
Bit(s)
Name
Description
specifies the maximum number of such transactions that can take place in a
single microframe. If either bit 11 or bit 12 is non-0, the USB2.0 controller will
automatically combine the separate USB packets received in any microframe
into a single packet within the Rx FIFO. The maximum payload for each
transaction is 1024 bytes, so this allows up to 3072 bytes to be received in each
microframe.
(For Isochronous/Interrupt transfers in full-speed mode or if high-bandwidth is
not enabled, bits 11 and 12 are ignored.) The value written to bit10~0 (multiplied
by m in the case of high-bandwidth Isochronous transfers) must match the value
given in the wMaxPacketSize field of the Standard Endpoint Descriptor for the
associated endpoint (see USB Specification Revision 2.0, Chapter 9). A
mismatch will cause unexpected results.
The total amount of data represented by the value written to this register
(specified payload * m) should not exceed the FIFO size for the OUT endpoint,
and should not exceed half the FIFO size if double-buffering is required.
A0900016
Bit
15
RXCSR_PERI
RX CSR Register
14
13
12
11
Name
AU
TO
CL
EA
R
ISO
DM
AR
EQ
EN
DIS
NY
ET
_PI
DE
RR
DM
AR
EQ
MO
DE
Type
Reset
RW
0
RW
0
RW
0
RW
0
RW
0
Bit(s)
10
9
KE
EP
ER
RS
TA
TU
S
RW
0
0000
8
7
6
5
4
3
2
1
0
INC
OM
PR
X
CL
RD
TA
TO
G
SE
NT
ST
AL
L
SE
ND
ST
AL
L
FL
US
HFI
FO
DA
TA
ER
R
OV
ER
RU
N
FIF
OF
UL
L
RX
PK
TR
DY
A1
0
A0
0
A1
0
RW
0
A0
0
RU
0
A1
0
RU
0
A1
0
Name
Description
15
AUTOCLEAR
If the CPU sets up this bit, the RxPktRdy bit will be automatically
cleared when a packet of RxMaxP bytes has been unloaded from the
RxFIFO. When packets of less than the maximum packet size are
unloaded, RxPktRdy will have to be cleared manually.
Note: Maximum packet size-3,-2,-1 is handled like maximum packet size which
is auto cleared by hardware.
14
ISO
The CPU sets up this bit to enable the Rx endpoint for Isochronous
transfers and clears it to enable the Rx endpoint for Bulk/Interrupt
transfers.
13
DMAREQEN
The CPU sets up this bit to enable the DMA request for the Rx
endpoint.
DISNYET_PIDERR
The CPU sets up this bit to disable the sending of NYET handshakes.
When set, all successfully received Rx packets will be ACK'd
including at the point at which the RxFIFO becomes full.
Note: This bit only takes effect in high-speed mode, in which it should
be set for all interrupt endpoints.
This bit is set when there is a PID error in the received packet. It is cleared when
RxPktRdy is cleared or write 0 to clear it.
DMAREQMODE
The CPU sets up this bit to select DMA Request Mode 1 and clears it to
select DMA Request Mode 0.
DMA Request Mode 1: Rx endpoint interrupt is generated only when DMA
Request Mode 1 receives a short packet. RxDMAReq is generated when receiving
a Max-Packet-size packet.
DMA Request Mode 0: No Rx endpoint interrupt. RxDMAReq is generated when
RxPktRdy is set.
KEEPERRSTATUS
This bit is used when endpoint works with USBQ and in
ISOCHRONOUS mode. When this bit is set, the isochronous error,
PIDERROR, INCOMPRX and DATAERROR will be kept and only
cleared by SW.
12
11
9
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MT2523 Series Reference Manual
Bit(s)
Name
Description
8
INCOMPRX
This bit is set in an isochronous transfer if the packet in RxFIFO is
incomplete because parts of the data are not received. When
KeepErrorStatus = 0, it will be cleared when RxPktRdy is cleared or
write 0 to clear it.
Note: In anything other than an isochronous transfer, this bit will always return
0. Write 0 to clear it.
7
CLRDTATOG
The CPU writes 1 to this bit to reset the endpoint data toggle to 0.
6
SENTSTALL
This bit is set when a STALL handshake is transmitted. The CPU
should clear this bit. An interrupt will be generated when the bit is
set.
Write 0 to clear it.
5
SENDSTALL
The CPU writes 1 to this bit to issue a STALL handshake. The CPU
clears this bit to terminate the stall condition.
Note: This bit has no effect where the endpoint is used for ISO transfers.
FLUSHFIFO
The CPU writes 1 to this bit to flush the next packet to be read from
the endpoint RxFIFO. The RxFIFO pointer is reset and the RxPktRdy
bit is cleared.
Note: FlushFIFO should only be used when RxPktRdy is set. In other cases, it
may cause data corruption. If RxFIFO is double buffered, FlushFIFO may need
to be set twice to completely clear RxFIFO.
DATAERR
This bit is set when RxPktRdy is set if the data packet has a CRC or
bit-stuff error in it. It is cleared when RxPktRdy is cleared.
Note: This bit is only valid when the endpoint operates in ISO mode.
In Bulk mode, it always returns to 0.
2
OVERRUN
This bit will be set if an OUT packet cannot be loaded into RxFIFO.
The CPU should clear this bit (write 0 to clear it).
Note: This bit is only valid when the endpoint operates in ISO mode. In Bulk
mode, it always returns to 0. The new incoming packet will not be written to
RxFIFO. Write 0 to clear it.
1
FIFOFULL
This bit is set when no more packets can be loaded into RxFIFO.
RXPKTRDY
This bit is set when a data packet has been received (to RxFIFO). The
CPU should clear this bit when the packet has been unloaded from
RxFIFO. An interrupt will be generated when the bit is set.
Write 0 to clear it.
4
3
0
A0900018
Bit
Name
Type
Reset
15
Bit(s)
13:0
RXCOUNT
14
Name
Type
Reset
15
12
11
10
9
8
0
0
0
0
0
0
7
6
RXCOUNT
RU
0
0
0000
5
4
3
2
1
0
0
0
0
0
0
0
Name
Description
RXCOUNT
It is a 14-bit read-only register that holds the number of received data
bytes in the packet in RxFIFO.
Note: The value returns changes as FIFO is unloaded and is only valid when
RxPktRdy (RxCSR.D0) is set.
A090001A
Bit
Rx Count Register
13
TXTYPE
14
13
TxType Register
12
11
10
9
8
7
6
TX_SPEE
D
RW
0
0
© 2015 - 2018 Airoha Technology Corp.
00
5
4
TX_PROT
OCOL
RW
0
0
3
2
1
0
TX_TARGET_EP_NUM
BER
RW
0
0
0
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
Operating speed of the target device when the core is configured with
the multipoint option. When the core is not configured with the
multipoint option, these bits should not be accessed
2'b00: Unused
7:6
TX_SPEED
2'b01: High
2'b10: Full
2'b11: Low
5:4
TX_PROTOCOL
The CPU should set up this bit to select the required protocol for Tx
endpoint:
2'b00: Illegal
2'b01: Isochronous
2'b10: Bulk
2'b11: Interrupt
3:0
TX_TARGET_EP_N
UMBER
The CPU should set this value to the endpoint number containing in
the Tx endpoint descriptor returned to the USB2.0 controller during
device enumeration.
A090001B
Bit
Name
Type
Reset
15
Bit(s)
7:0
TXINTERVA
L
14
Name
Type
Reset
12
11
10
9
8
7
6
00
5
4
3
2
1
0
TX_POLLING_INTERVAL_NAK_LIMIT_M
RW
0
0
0
0
0
0
0
0
Name
Description
TX_POLLING_INTE
RVAL_NAK_LIMIT_
M
(Host mode only) TxInterval Register TxInterval is an 8-bit register
that, for Interrupt and Isochronous transfers, defines the polling
interval for the currently selected Tx endpoint. For Bulk endpoints,
this register sets up the number of frames/microframes after which
the endpoint should time out on receiving a stream of NAK
responses. There is a TxInterval register for each configured Tx
endpoint (except for Endpoint 0).
In each case the value that is set defines a number of frames/microframes (high
speed transfers), as the following:
Transfer Type | Speed | Valid values (m) | Interpretation
Interrupt | Low Speed or Full Speed | 1-255 | Polling interval is m frames.
Interrupt | High Speed | 1-16 | Polling interval is 2^(m-1) microframes
Isochronous | Full Speed or High Speed | 1-16 | Polling interval is 2^(m-1)
frames/microframes
Bulk | Full Speed or High Speed | 2-16 | NAK Limit is 2^(m-1)
frames/microframes.
Note: Value 0 or 1 disables the NAK timeout function.
A090001C
Bit
13
TxInterval Register
15
RXTYPE
14
13
RxType Register
12
11
10
9
8
7
6
RXSPEED
0
RW
0
© 2015 - 2018 Airoha Technology Corp.
00
5
4
RX_PROT
OCOL
RW
0
0
3
2
1
0
RX_TARGET_EP_NUM
BER
RW
0
0
0
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
RXSPEED
Operating speed of the target device when the core is configured with
the multipoint option. When the core is not configured with the
multipoint option, these bits should not be accessed
2'b00: Unused
2'b01: High
2'b10: Full
2'b11: Low
5:4
RX_PROTOCOL
The CPU should set this to select the required protocol for the Tx
endpoint:
2'b00: Illegal
2'b01: Isochronous
2'b10: Bulk
2'b11: Interrupt
3:0
RX_TARGET_EP_N
UMBER
The CPU should set this value to the endpoint number containing in
the Tx endpoint descriptor returned to the USB2.0 controller during
device enumeration.
7:6
A090001
D
RXINTERVA
L
Bit
Name
Type
Reset
14
15
Bit(s)
7:0
12
11
10
9
8
7
6
00
5
4
3
2
1
0
RX_POLLING_INTERVAL_NAK_LIMIT_M
RW
0
0
0
0
0
0
0
0
Name
Description
RX_POLLING_INTE
RVAL_NAK_LIMIT_
M
RxInterval Register RxInterval is an 8-bit register that, for Interrupt
and Isochronous transfers, defines the polling interval for the
currently selected Rx endpoint. For Bulk endpoints, this register sets
the number of frames/microframes after which the endpoint should
time out on receiving a stream of NAK responses. There is a
RxInterval register for each configured Rx endpoint (except for
Endpoint 0).
RX POLLING INTERVAL/NAK LIMIT (M), (host mode only)
In each case the value that is set defines a number of frames/microframes (high
speed transfers), as the following:
Transfer type speed valid values (m) interpretation
Interrupt low speed or full speed 1 - 255 polling interval is m frames.
High speed 1 - 16 polling interval is 2(m-1) microframes
Isochronous full speed or high speed 1 - 16 polling interval is 2(m-1)
frames/microframes
Bulk full speed or high speed 2 - 16 NAK limit is 2(m-1) frames/microframes.
Note: Value 0 or 1 disables the NAK timeout function.
A090001F
Bit
Name
Type
Reset
13
RxInterval Register
15
FIFOSIZE
14
13
12
Configured FIFO Size Register
11
10
9
8
7
0
6
5
RXFIFOSIZE
DC
0
0
00
4
3
0
0
Bit(s)
Name
Description
7:4
RXFIFOSIZE
Indicates RxFIFO size of 2^n bytes
Example: Value 10 means 2^10 = 1024 bytes.
3:0
TXFIFOSIZE
Indicates TxFIFO size of 2^n bytes
Example: Value 10 means 2^10 = 1024 bytes.
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2
1
TXFIFOSIZE
DC
0
0
0
0
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MT2523 Series Reference Manual
Bit(s)
Name
A0900020
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
FIFO0
30
0
0
27
0
26
0
13
12
11
10
0
0
0
0
0
0
31
0
25
24
23
22
9
8
7
6
FIFO_DATA[31:16]
Other
0
0
0
0
FIFO_DATA[15:0]
Other
0
0
0
0
21
00000000
20
19
0
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
Name
Description
FIFO_DATA
The Endpoint FIFO registers provides 16 addresses for CPU to access
FIFOs for each endpoint. Writing to these addresses loads data into
TxFIFO for the corresponding endpoint. Reading from these
addresses unloads data from RxFIFO for the corresponding
endpoint.
Note:
1. Transfers to and from FIFOs may be 8-bit, 16-bit or 32-bit as required, and
any combination of access is allowed provided the data accessed are contiguous.
However, all the transfers associated with one packet must be of the ame width
so that the data are consistently byte-, word- or double-word-aligned. The last
transfer may however contain fewer bytes than the previous transfers in order to
complete an odd-byte or odd-word transfer. For DC/DTV project, also refer to
the RISC_SIZE register to complete FIFO access.
2. Depending on the size of the FIFO and the expected maximum packet size, the
FIFOs support either single-packet or double-packet buffering. However, burst
writing of multiple packets is not supported as flags need to be set after each
packet is written.
3. Following a STALL response or a Tx Strike Out error on Endpoint, the
associated FIFO is completely flushed.
4. For programmers, do not use debug tools to monitor or read the FIFO region.
The FIFO pointer will increase and cause unexpected error in MAC state
machine.
A0900024
31:0
0
28
14
31:0
Bit(s)
29
USB Endpoint 0 FIFO Register
15
Bit(s)
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
FIFO1
30
0
29
0
USB Endpoint 1 FIFO Register
28
0
27
0
26
0
15
14
13
12
11
10
0
0
0
0
0
0
25
24
23
22
9
8
7
6
FIFO_DATA[31:16]
Other
0
0
0
0
FIFO_DATA[15:0]
Other
0
0
0
0
21
0
00000000
20
19
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
Name
Description
FIFO_DATA
The Endpoint FIFO registers provides 16 addresses for CPU access to
FIFOs for each endpoint. Writing to these addresses loads data into
the TxFIFO for the corresponding endpoint. Reading from these
addresses unloads data from RxFIFO for the corresponding
endpoint.
Note:
1. Transfers to and from FIFOs may be 8-bit, 16-bit or 32-bit as required, and
any combination of access is allowed provided the data accessed are contiguous.
However, all the transfers associated with one packet must be of the ame width
so that the data are consistently byte-, word- or double-word-aligned. The last
transfer may however contain fewer bytes than the previous transfers in order to
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MT2523 Series Reference Manual
Bit(s)
Name
Description
complete an odd-byte or odd-word transfer. For DC/DTV project, also refer to
the RISC_SIZE register to complete FIFO access.
2. Depending on the size of the FIFO and the expected maximum packet size,
the FIFOs support either single-packet or double-packet buffering. However,
burst writing of multiple packets is not supported as flags need to be set after
each packet is written.
3. Following a STALL response or a Tx Strike Out error on Endpoint, the
associated FIFO is completely flushed.
4. For programmers, do not use debug tools to monitor or read the FIFO region.
The FIFO pointer will increase and cause unexpected error in MAC state
machine.
A090002
8
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
30
0
29
0
28
0
27
0
26
0
15
14
13
12
11
10
0
0
0
0
0
0
Bit(s)
31:0
15
25
24
23
22
9
8
7
6
FIFO_DATA[31:16]
Other
0
0
0
0
FIFO_DATA[15:0]
Other
0
0
0
0
21
0
00000000
20
19
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
Name
Description
FIFO_DATA
The Endpoint FIFO registers provides 16 addresses for CPU access to
the FIFOs for each endpoint. Writing to these addresses loads data
into TxFIFO for the corresponding endpoint. Reading from these
addresses unloads data from RxFIFO for the corresponding
endpoint.
Note:
1. Transfers to and from FIFOs may be 8-bit, 16-bit or 32-bit as required, and
any combination of access is allowed provided the data accessed are contiguous.
However, all the transfers associated with one packet must be of the ame width
so that the data are consistently byte-, word- or double-word-aligned. The last
transfer may however contain fewer bytes than the previous transfers in order to
complete an odd-byte or odd-word transfer. For DC/DTV project, also refer to
RISC_SIZE register to complete FIFO access.
2. Depending on the size of the FIFO and the expected maximum packet size,
the FIFOs support either single-packet or double-packet buffering. However,
burst writing of multiple packets is not supported as flags need to be set after
each packet is written.
3. Following a STALL response or a Tx Strike Out error on Endpoint, the
associated FIFO is completely flushed.
4. For programmers, do not use debug tools to monitor or read the FIFO region.
The FIFO pointer will increase and cause unexpected error in MAC state
machine.
A090006
0
Bit
USB Endpoint 2 FIFO Register
FIFO2
Device Control Register
DEVCTL
14
13
12
11
10
9
8
7
80
6
5
Name
B_
DE
VIC
E
FS
DE
V
LS
DE
V
VBUS
HO
ST
MO
DE
Type
RU
RU
RU
RU
RU
Reset
1
0
0
© 2015 - 2018 Airoha Technology Corp.
4
0
3
0
2
0
1
HO
ST
RE
Q
Oth
er
0
0
SES
SIO
N
Oth
er
0
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MT2523 Series Reference Manual
Bit(s)
Name
7
Description
This read-only bit indicates whether the USB2.0 controller operates
as the 'A' device or the 'B' device. Only valid when a session is in
progress.
Note: If the core is in Force_Host mode, this bit will indicate the state of the
HOSTDISCON input signal from the PHY.
1'b0: 'A' device
B_DEVICE
1'b1: 'B' device
6
FSDEV
This read-only bit is set when a full-speed or high-speed device has
been detected being connected to the port. (High-speed devices are
distinguished from full-speed by checking for high-speed chirps
when the device is reset.) Only valid in host mode.
5
LSDEV
This read-only bit is set when a low-speed device has been detected
being connected to the port. Only valid in host mode.
4:3
VBUS
These read-only bits encode the current VBUS level as the following:
(only available with OTG function equipped; else the register value
will be undefined.)
2'b00: Below SessionEnd
2'b01: Above SessionEnd, below AValid
2'b10: Above AValid, below VBusValid
2'b11: About VBusValid
2
HOSTMODE
This read-only bit is set when the USB2.0 controller is acting as a
host.
1
HOSTREQ
When set, the USB2.0 controller will initiate Host Negotiation when
Suspend mode is entered. Cleared when Host Negotiation is
completed ('B' device only).
SESSION
When operating as 'A' device, this bit is set or cleared by the CPU to
start or end a session. When operating as 'B' device, this bit is
set/cleared by the USB2.0 controller when a session starts/ends. It is
also set by the CPU to initiate the Session Request Protocol. When the
USB2.0 controller is in Suspend mode, the bit may be cleared by the
CPU to perform software disconnect.
Note: Clearing this bit when the core is not suspended will result in undefined
behavior.
0
A0900061
PWRUPCNT
Bit
Name
Type
Reset
14
15
13
12
Power Up Counter Register
11
10
9
8
7
6
5
0F
4
3
1
2
1
PWRUPCNT
RW
1
1
0
1
Bit(s)
Name
Description
3:0
PWRUPCNT
Power up counter limit. The power up counter counts the K state
duration during suspend; when it times out, the resume interrupt
will be issued. The register should be configured according to AHB
clock speed.
A0900062
Bit
15
TXFIFOSZ
14
13
12
Tx FIFO Size Register
11
10
9
8
7
6
Name
Type
Reset
© 2015 - 2018 Airoha Technology Corp.
5
00
4
TX
DP
B
RW
0
3
2
1
0
0
0
TXSZ
0
0
RW
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4
TXDPB
Defines whether double-packet buffering supported for TxFIFO.
When '1', double-packet buffering is supported. When '0', only singlepacket buffering is supported.
TXSZ
Maximum packet size to be allowed for (before any splitting within
the FIFO of Bulk/High-Bandwidth packets prior to transmission). If
TxDPB = 0, FIFO will also be this size; if TxDPB = 1, FIFO will be
twice this size.
TxSZ[3:0] Packet size (bytes)
4'b0000: 8
4'b0001: 16
4'b0010: 32
4'b0011: 64
4'b0100: 128
4'b0101: 256
4'b0110: 512
4'b0111: 1024
4'b1000: 2048 (single-packet buffering only)
4'b1001: 4096 (single-packet buffering only)
Others: Not supported
3:0
A0900063
Bit
15
RXFIFOSZ
14
13
12
Rx FIFO Size Register
11
10
9
8
7
6
5
Name
Type
Reset
00
4
RX
DP
B
RW
0
3
2
1
0
0
0
RXSZ
0
0
RW
Bit(s)
Name
Description
4
RXDPB
Defines whether double-packet buffering supported for TxFIFO.
When 1, double-packet buffering is supported. When 0, only singlepacket buffering is supported.
RXSZ
Maximum packet size to be allowed for (before any splitting within
the FIFO of Bulk/High-Bandwidth packets prior to transmission). If
TxDPB = 0, FIFO will also be this size; if TxDPB = 1, FIFO will be
twice this size
RxSZ[3:0]
Packet size (bytes)
4'b0000: 8
4'b0001: 16
4'b0010: 32
4'b0011: 64
4'b0100: 128
4'b0101: 256
4'b0110: 512
4'b0111: 1024
4'b1000: 2048 (single-packet buffering only)
4'b1001: 4096 (single-packet buffering only)
Others: Not supported
3:0
A090006
4
Bit
Name
Type
Reset
15
Tx FIFO Address Register
TXFIFOADD
14
13
12
11
10
9
8
0
0
0
0
0
7
6
5
TXFIFOADD
RW
0
0
0
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0000
4
3
2
1
0
0
0
0
0
0
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MT2523 Series Reference Manual
Bit(s)
12:0
A090006
6
Name
Description
TXFIFOADD
TxFIFOadd is a 13-bit register which controls the start address of the
selected Tx endpoint FIFO.
TxFIFOadd[12:0] Start address
13'h0000: 0000
13'h0001: 0008
13'h0002: 0010
13'h1FFF: FFF8
Rx FIFO Address Register
RXFIFOADD
Bit
15
Name
Dat
aEr
rInt
rEn
Type
Reset
RW
0
14
Ove
rR
UN
Intr
En
RW
0
13
12
11
10
9
8
7
6
5
0000
4
3
2
1
0
0
0
0
0
0
RXFIFOADD
0
0
0
0
0
0
RW
0
0
Bit(s)
Name
Description
15
DataErrIntrEn
Enables data error interrupt
Note: This bit is only valid when the endpoint is operating in ISO mode.
14
OverRUNIntrEn
Enables over run interrupt
Note: this bit is only valid when the endpoint is operating in ISO mode.
RXFIFOADD
RxFIFOadd is a 13-bit register which controls the start address of the
selected Rx endpoint FIFO.
RxFIFOadd[12:0] Start address
13'h0000: 0000
13'h0001: 0008
13'h0002: 0010
13'h1FFF: FFF8
12:0
A090006
C
Bit
Name
Type
Reset
Hardware Capability Register
HWCAPS
15
QM
U_
SU
PP
OR
T
RO
0
14
HU
B_
SU
PP
OR
T
RO
0
13
US
B20
_S
UP
PO
RT
RO
1
12
US
B11
_S
UP
PO
RT
RO
0
11
10
MSTR_W
RAP_INT
FX
0
DC
0
9
8
7
6
5
SLAVE_W
RAP_INT
FX
0
DC
2003
4
3
2
1
0
USB_VERSION_CODE
0
0
Bit(s)
Name
Description
0
0
15
QMU_SUPPORT
QMU feature support
14
HUB_SUPPORT
HUB feature support
13
USB20_SUPPORT
USB2.0 feature support
12
USB11_SUPPORT
USB1.1 feature support
11:10
MSTR_WRAP_INTF
X
Configures AHB master interface
2'b00: Mentor AHB master interface
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RO
0
1
1
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MT2523 Series Reference Manual
Bit(s)
Name
Description
2'b01: Asynchronous AHB master interface
2'b10: Asynchronous AXI master interface
2'b11: Asynchronous DX DRAM master interface
9:8
SLAVE_WRAP_INT
FX
Configures AHB slave interface
2'b00: Mentor AHB slave interface
2'b01: Asynchronous AHB master interface
2'b10: Asynchronous AXI master interface
2'b11: Asynchronous DX CPU slave interface
5:0
USB_VERSION_CO
DE
USB hardware version code
A090006
E
Bit
Name
Type
Reset
15
Version Register
HWSVERS
14
13
12
11
10
9
8
7
0
6
0000
5
4
Bit(s)
Name
Description
7:0
USB_SUB_VERSIO
N_CODE
USB software version code
A0900070
Bit
Name
Type
Reset
Bit(s)
15
CL
RD
MA
RE
QE
AR
LY
_E
N
RW
0
BUSPERF1
14
13
12
SO
FT_
DE
BO
UN
CE
ISO
_E
RR
_C
NT
_E
N
ISO
_R
TY
_DI
S
RW
0
RW
0
RW
0
3
2
1
USB Bus Performance Register 1
11
10
PR
EA
MB
LE
_D
EL
AY
_E
N
RW
0
9
8
7
0
USB_SUB_VERSION_CODE
RO
0
0
0
0
0
0
6
5
4
0
0000
3
2
1
0
0
0
0
0
HOST_WAIT_EP0
0
0
0
0
0
RW
0
Name
Description
CLRDMAREQEARLY
_EN
CLRDMAREQEARLY_EN = 1 means DMAReq is cleared when 8 bytes
of data remain in FIFO for RX, or TXMAXP-8 bytes are loaded in
FIFO for TX.
CLRDMAREQEARLY_EN = 0 means DMAReq is only cleared when RX FIFO is
read empty, or TXMAXP is loaded to TX FIFO.
14
SOFT_DEBOUNCE
If soft_debounce=0, debounce will be implemented by hardware,
that is 120ms, the same as before.
If soft_debounce=1, after DP/DM is stable for 1ms, connection interrupt will be
generated, and software will determine how long the delay is for debounce.
This bit only affects the debounce behavior when the cable starts connection. It
does not affect HNP when the cable is connected.
13
ISO_ERR_CNT_EN
Musbhdrc has different behavior from the USB spec. in HUB ISO
mode. When this bit is set, the Strike out mechanism of re-try failed
will be engaged and complete the transaction.
12
ISO_RTY_DIS
Musbhdrc has different behavior from the USB spec. in HUB ISO
15
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MT2523 Series Reference Manual
Bit(s)
Name
Description
mode. This bit is disable the retry of CSplit @ SOF
10
9:0
PREAMBLE_DELAY
_EN
Host mode only and downstream port connect to hub. This bit
enables the function of host delay to issue a preamble +ack packet
after receiving data from LS device about 3 LS bit time.
HOST_WAIT_EP0
Host waiting time of Endpoint 0
The written value defines the minimum cycles for controller to issue the next
IN/OUT/PING token during idle state.
0: No wait
>0: During idle state, the controller must wait for at least the exact cycles written
before it issues the next IN/OUT/PING token. The cycle unit is as USB system
clock cycle.
A0900072
Bit
15
Name
HS
R_I
SOI
CH
K_
DIS
Type
Reset
RW
1
BUSPERF2
14
HS
T_I
SO
OC
HK
_DI
S
RW
1
13
12
USB Bus Performance Register 2
11
10
9
8
7
6
5
C000
4
3
2
1
0
0
0
0
0
0
HOST_WAIT_EPX
0
0
0
0
0
0
0
RW
0
0
Bit(s)
Name
Description
15
HSR_ISOICHK_DIS
ISO Rx 0-packet Disable in host mode
Optional disable selection for ISO Rx 0 packet
14
HST_ISOOCHK_DIS
ISO Tx 0-packet Disable in host mode
Optional disable selection for ISO Rx 0 packet
HOST_WAIT_EPX
Host waiting time of all endpoints except for Endpoint 0
The written value defines the minimum cycles for controller to issue the next
IN/OUT/PING token during idle state.
0: No wait
>0: During idle state, the controller must wait for at least the exact cycles written
before it issues the next IN/OUT/PING token. The cycle unit is as USB system
clock cycle.
13:0
A0900074
Bit
15
BUSPERF3
14
13
12
USB Bus Performance Register 3
11
10
9
8
7
6
5
4
0A48
3
Name
VB
US
ER
R_
MO
DE
FL
US
H_
FIF
O_
EN
NO
ISE
_ST
ILL
_S
OF
BA
B_
CL
R_
EN
UN
DO
_S
RP
FIX
Type
Reset
RW
1
RW
1
RW
0
RW
1
RW
1
2
OT
G_
DE
GLI
TC
H_
DIS
AB
LE
RW
0
1
0
EP
_S
WR
ST
DIS
US
BR
ESE
T
A0
0
RW
0
Bit(s)
Name
Description
11
VBUSERR_MODE
Controls whether VBUS error will reset USB controller or only set up
the VBUS error bit
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MT2523 Series Reference Manual
Bit(s)
Name
Description
1'b0: Set up INTRUSB.bit[7] VBUS error only
1'b1: Reset USB controller and set up INTRUSB.bit[7] VBUS error tooDataErr
interrupt enable. The DataErr status bit is in RxCSR[3] and should be written 0
to clear.TBD
9
FLUSH_FIFO_EN
Enables Flush FIFO
1'b1: Clear USBPtr0, USBPtr1 of EPx Tx by flush FIFO command.
1'b0: USBPtr0, USBPtr1 of EPx Tx cannot be cleared by flush FIFO command.
7
NOISE_STILL_SOF
Forces transmitting SOF as babble interrupt
BAB_CLR_EN
Controls babble session
1'b0: Babble interrupt will not close session automatically.
6
1'b1: Babble interrupt will close session automatically.
3
UNDO_SRPFIX
The CPU sets up this bit to recover to the original circuit of USB2.0 IP
about SRP.
2
OTG_DEGLITCH_D
ISABLE
Set to 1 to disable deglitch circuit of OTG signal group VBUSVALID,
AVALID and SESSEND.
EP_SWRST
SW can reset the USB MAC setting by setting this bit to 1. EP_SWRST
will be cleared by HW automatically.
The MAC settings include function address, endpoint interrupt enable/status,
endpoint state and EP TX/RX CSR.
DISUSBRESET
If DISUSBRESET is 0, USB MAC setting will be reset to inconfigured
condition when USB bus reset is detected. SW can set this bit to 1 to
disable USB MAC setting. Reset by HW when USB bus reset is
detected.
The HW reset MAC settings include:
1. Clear function address register
2. Clear index register
3. Flush all endpoint FIFOs
4. Clear control/status register
a. EPN TX/RXMAXP
b. EPN TX/RXCSR
c. EPN TX/RXTYPE
d. EPN TX/RXInterval
e. EPN RXCOUNT
f. EP0 CSR0
g. EP0 COUNT0
5. Enable TX/RX endpoint interrupt and clear TX/RX interrupt status
Note: EPN TX/RX FIFOSZ/AD are not cleared.
1
0
A0900078
Bit
Name
Type
Reset
15
EPINFO
14
13
Number of Tx and Rx Register
12
11
10
9
8
7
6
5
24
4
RXENDPOINTS
RO
0
0
1
0
3
2
Name
Description
7:4
RXENDPOINTS
Number of Rx endpoints implemented in the design.
3:0
TXENDPOINTS
Number of Tx endpoints implemented in the design.
Bit
Name
Type
Reset
15
RAMINFO
14
13
12
Width of RAM and Number of DMA Channel
Register
11
10
9
8
7
0
6
5
DMACHANS
RO
1
0
© 2015 - 2018 Airoha Technology Corp.
0
TXENDPOINTS
RO
0
1
0
0
Bit(s)
A0900079
1
4
3
0
1
4A
2
1
RAMBITS
DC
0
1
0
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
7:4
DMACHANS
Number of DMA channels implemented in the design.
3:0
RAMBITS
Width of the RAM address bus-1
A090007
A
Bit
Name
Type
Reset
Delay to be Applied Register
LINKINFO
15
14
13
12
11
10
9
8
7
0
6
5
WTCON
RW
1
0
5C
4
3
1
1
2
1
WTID
RW
1
0
0
0
Bit(s)
Name
Description
7:4
WTCON
Sets the wait to be applied to allow for the user's connect/disconnect
filter in units of 533.3ns. (The default setting corresponds to
2.667us.) The default value will change to be 4'h8 to meet 2.667us.
3:0
WTID
Sets up delay to be applied from IDPULLUP being asserted to IDDIG
being considered valid in units of 4.369ms.
The default setting corresponds to 52.43ms.)
A090007
B
Bit
Name
Type
Reset
Vbus Pulsing Charge Register
VPLEN
15
14
13
12
11
10
9
8
7
6
5
0
0
1
3C
4
3
VPLEN
RW
1
1
2
1
0
1
0
0
Bit(s)
Name
Description
7:0
VPLEN
Sets up duration of the VBus pulsing charge in units of 136.5 us. (The
default setting corresponds to 8.19ms
A090007C
Bit
Name
Type
Reset
15
Time Buffer Available on HS Transaction
Register
HS_EOF1
14
13
12
11
10
9
8
7
6
5
1
0
0
4
80
3
HS_EOF1
RW
0
0
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
HS_EOF1
Sets up high-speed transactions the time before EOF to stop
beginning new transactions, in units of 133.3ns.
The default setting corresponds to 17.07us. USB2.0 IP only.
A090007
D
Bit
Name
Type
Reset
Time Buffer Available on FS Transaction
Register
FS_EOF1
15
14
13
12
11
10
9
8
7
6
5
0
1
1
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4
77
3
FS_EOF1
RW
1
0
2
1
0
1
1
1
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MT2523 Series Reference Manual
Bit(s)
7:0
A090007E
Bit
Name
Type
Reset
15
Bit(s)
7:0
A090007F
Bit
Name
Type
Reset
15
Name
Description
FS_EOF1
Sets up full-speed transactions the time before EOF to stop beginning
new transactions, in units of 533.3ns. (The default setting
corresponds to 63.46us.) The default value will change to be 8'hBE to
meet 63.46us.
14
13
12
11
10
9
8
7
6
5
0
1
1
7:4
3:0
3
LS_EOF1
RW
1
0
2
1
0
0
1
0
Description
LS_EOF1
Sets up Q252low-speed transactions the time before EOF to stop
beginning new transactions, in units of 1.067us. (The default setting
corresponds to 121.6us.). USB2.0 IP only. The default value will
change to be 8'hB6 to meet 121.6us.
RST_INFO
14
13
12
Reset Information Register
11
10
9
8
7
6
5
WTFSSE0
RW
0
0
00
4
3
0
0
2
1
WTCHRP
RW
0
0
0
0
Name
Description
WTFSSE0
Signifies the SE0 signal duration before issuing the reset signal (for
device only).
Duration = 272.8 x WTFSSE0 + 2.5 usec.
This register will only be reset when hardware is reset.
WTCHRP
Sets up delay to be applied from detecting Reset to sending chirp K
(for device only).
The duration = 272.8 x WTCHRP + 0.1 usec.
This register will only be reset when hardware is reset.
A090008
0
15
4
72
Name
0
Bit(s)
Bit
Time Buffer Available on LS Transaction
Register
LS_EOF1
Rx Data Toggle Set/Status Register
RXTOG
14
13
12
11
10
9
8
7
6
5
Name
Type
Reset
4
0000
3
2
EP2
RX
TO
G
Oth
er
0
1
EP1
RX
TO
G
Oth
er
0
0
Bit(s)
Name
Description
2
EP2RXTOG
Receive Logical Endpoint n Data Toggle Bit Set/Status
When read, these bits indicate the current state of the Endpoint n data toggle. If
enable bit is high, the bit may be written with the required setting of the data
toggle. If enable is low, any value written will be ignored
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MT2523 Series Reference Manual
Bit(s)
Name
Description
Note: This register is word access.
1'b0: Logical Endpoint n RX data toggle bit = 0
1'b1: Logical Endpoint n RX data toggle bit = 1
1
EP1RXTOG
A090008
2
Bit
Receive Logical Endpoint n Data Toggle Bit Set/Status.
When read, these bits indicate the current state of the Endpoint n data toggle. If
enable bit is high, the bit may be written with the required setting of the data
toggle. If enable is low, any value written will be ignored
Note: This register is word access.
1'b0: Logical Endpoint n RX data toggle bit = 0
1'b1: Logical Endpoint n RX data toggle bit = 1
15
Rx Data Toggle Enable Register
RXTOGEN
14
13
12
11
10
9
8
7
6
5
4
0000
3
Name
Type
Reset
Bit(s)
2
1
15
Description
EP2RXTOGEN
Enables Receive Logical Endpoint n Data Toggle Bit
If enable bit is set, the endpoint n data toggle can be set.
Note: This register is word access.
1'b0: Forbid RISC writing EP n data toggle status with EP1RXTOG
1'b1: Allow RISC writing EP n data toggle status with EP1RXTOG
EP1RXTOGEN
Enables Receive Logical Endpoint n Data Toggle Bit
If enable bit is set, the endpoint n data toggle can be set.
Note: This register is word access.
1'b0: Forbid RISC writing EP n data toggle status with EP1RXTOG
1'b1: Allow RISC writing EP n data toggle status with EP1RXTOG
Tx Data Toggle Set/Status Register
TXTOG
14
13
12
11
10
9
8
7
6
5
Name
Type
Reset
Bit(s)
1
EP1
RX
TO
GE
N
RW
0
Name
A090008
4
Bit
2
EP2
RX
TO
GE
N
RW
0
4
EP4
TX
TO
G
Oth
er
0
0
0000
3
EP3
TX
TO
G
Oth
er
0
2
EP2
TX
TO
G
Oth
er
0
1
EP1
TX
TO
G
Oth
er
0
0
Name
Description
4
EP4TXTOG
Transmit Logical Endpoint n Data Toggle Bit Set/Status
When read, these bits indicate the current state of the Endpoint n data toggle. If
enable bit is high, the bit may be written with the required setting of the data
toggle. If enable is low, any value written will be ignored
Note: This register is word access.
1'b0: Logical Endpoint n TX data toggle bit = 0
1'b1: Logical Endpoint n TX data toggle bit = 1
3
EP3TXTOG
Transmit Logical Endpoint n Data Toggle Bit Set/Status
When read, these bits indicate the current state of the Endpoint n data toggle. If
enable bit is high, the bit may be written with the required setting of the data
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MT2523 Series Reference Manual
Bit(s)
Name
Description
toggle. If enable is low, any value written will be ignored
Note: This register is word access.
1'b0: Logical Endpoint n TX data toggle bit = 0
1'b1: Logical Endpoint n TX data toggle bit = 1
2
1
A090008
6
Bit
15
EP2TXTOG
Transmit Logical Endpoint n Data Toggle Bit Set/Status
When read, these bits indicate the current state of the Endpoint n data toggle. If
enable bit is high, the bit may be written with the required setting of the data
toggle. If enable is low, any value written will be ignored
Note: This register is word access.
1'b0: Logical Endpoint n TX data toggle bit = 0
1'b1: Logical Endpoint n TX data toggle bit = 1
EP1TXTOG
Transmit Logical Endpoint n Data Toggle Bit Set/Status
When read, these bits indicate the current state of the Endpoint n data toggle. If
enable bit is high, the bit may be written with the required setting of the data
toggle. If enable is low, any value written will be ignored
Note: This register is word access.
1'b0: Logical Endpoint n TX data toggle bit = 0
1'b1: Logical Endpoint n TX data toggle bit = 1
Tx Data Toggle Enable Register
TXTOGEN
14
13
12
11
10
9
8
7
6
5
Name
Type
Reset
Bit(s)
4
3
2
1
4
EP4
TX
TO
GE
N
RW
0
0000
3
EP3
TX
TO
GE
N
RW
0
2
EP2
TX
TO
GE
N
RW
0
1
EP1
TX
TO
GE
N
RW
0
Name
Description
EP4TXTOGEN
Enables Receive Logical Endpoint 1 Data Toggle Bit
If enable bit is set, the endpoint n data toggle can be set.
Note: This register is word access.
1'b0: Forbid RISC writing EP n data toggle status with EP1RXTOG
1'b1: Allow RISC writing EP n data toggle status with EP1RXTOG
EP3TXTOGEN
Enables Receive Logical Endpoint 1 Data Toggle Bit
If enable bit is set, the endpoint n data toggle can be set.
Note: This register is word access.
1'b0: Forbid RISC writing EP n data toggle status with EP1RXTOG
1'b1: Allow RISC writing EP n data toggle status with EP1RXTOG
EP2TXTOGEN
Enables Receive Logical Endpoint 1 Data Toggle Bit
If enable bit is set, the endpoint n data toggle can be set.
Note: This register is word access.
1'b0: Forbid RISC writing EP n data toggle status with EP1RXTOG
1'b1: Allow RISC writing EP n data toggle status with EP1RXTOG
EP1TXTOGEN
Enables Receive Logical Endpoint 1 Data Toggle Bit
If enable bit is set, the endpoint n data toggle can be set.
Note: This register is word access.
1'b0: Forbid RISC writing EP n data toggle status with EP1RXTOG
1'b1: Allow RISC writing EP n data toggle status with EP1RXTOG
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MT2523 Series Reference Manual
A09000A
0
Bit
Name
Type
Reset
Bit
31
30
29
28
15
14
13
12
Name
Type
Reset
Bit(s)
USB Level 1 Interrupt Status Register
USB_L1INTS
27
11
PO
WE
RD
WN
_IN
T_S
TA
TU
S
RU
0
26
25
10
9
DR
VV
BU
S_I
NT
_ST
AT
US
ID
DIG
_IN
T_S
TA
TU
S
RU
0
RU
0
00000000
24
23
22
21
20
19
8
7
6
5
4
VB
US
VA
LID
_IN
T_S
TA
TU
S
RU
0
18
17
16
3
2
1
0
RX
_IN
T_S
TA
TU
S
TX
_IN
T_S
TA
TU
S
RU
0
RU
0
DP
DM
_IN
T_S
TA
TU
S
QH
IF_
INT
_ST
AT
US
QI
NT
_ST
AT
US
PS
R_I
NT
_ST
AT
US
DM
A_I
NT
_ST
AT
US
US
BC
OM
_IN
T_S
TA
TU
S
RU
0
RU
0
RU
0
RU
0
RU
0
RU
0
Name
Description
11
POWERDWN_INT_
STATUS
Power-down interrupt status
When controller is in host suspend mode, VBus is valid, and DP is asserted, this
bit will set. When controller is in peripheral mode, Avalid is setting, and DP is
asserted, this bit will set. When controller is in idle state, avalid is de-asserted ,
and linestate is in SE0, this bit will also set.
10
DRVVBUS_INT_STA
TUS
DRVVBUS interrupt status
This bit shows the interrupt trigger status of DRVVBUS. The trigger polarity is
determined by DRVVBUS_INT_POL.
This interrupt is used in USB OTG charge pump control.
9
IDDIG_INT_STATU
S
IDDIG interrupt status
This bit shows the interrupt trigger status of IDDIG. The trigger polarity is
determined by IDDIG_INT_POL.
This interrupt is used in USB OTG attachment.
8
VBUSVALID_INT_S
TATUS
VBUSVALID interrupt status
This bit shows the interrupt trigger status of VBUSVALID. The trigger polarity is
determined by VBUSVALID_INT_POL.
This interrupt is used in USB attachment to host.
7
DPDM_INT_STATU
S
DPDM interrupt status
This bit shows the interrupt trigger status of DPDM. The trigger condition is
whether DP or DM goes high.
This interrupt is used in USB HOST mode to detect device attachment.
6
QHIF_INT_STATUS
USBQ HIF command interrupt status
Only valid when WiMAX Q is available.
5
QINT_STATUS
USBQ interrupt status
Only valid when USBQ is available.
4
PSR_INT_STATUS
Packet sequence recorder interrupt status
3
DMA_INT_STATUS
DMA interrupt status
2
USBCOM_INT_STA
TUS
USB common interrupt status
1
RX_INT_STATUS
Endpoint Rx interrupt status
0
TX_INT_STATUS
Endpoint Tx interrupt status
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MT2523 Series Reference Manual
A09000A
4
Bit
Name
Type
Reset
Bit
USB Level 1 Interrupt Mask Register
USB_L1INTM
31
30
29
28
15
14
13
12
Name
Type
Reset
27
11
PO
WE
RD
WN
_IN
T_
UN
MA
SK
RW
0
26
25
10
9
DR
VV
BU
S_I
NT
_U
NM
AS
K
RW
0
ID
DIG
_IN
T_
UN
MA
SK
RW
0
00000000
24
23
22
21
20
19
8
7
6
5
4
VB
US
VA
LID
_IN
T_
UN
MA
SK
RW
0
18
17
16
3
2
1
0
RX
_IN
T_
UN
MA
SK
TX
_IN
T_
UN
MA
SK
RW
0
RW
0
DP
DM
_IN
T_
UN
MA
SK
QH
IF_
INT
_U
NM
AS
K
QI
NT
_U
NM
AS
K
PS
R_I
NT
_U
NM
AS
K
DM
A_I
NT
_U
NM
AS
K
US
BC
OM
_IN
T_
UN
MA
SK
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
Bit(s)
Name
Description
11
POWERDWN_INT_
UNMASK
Unmasks POWERDWN interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
10
DRVVBUS_INT_UN
MASK
Unmasks DRVVBUS interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
9
IDDIG_INT_UNMA
SK
Unmasks IDDIG Interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
8
VBUSVALID_INT_U
NMASK
Unmasks VBUSVALID Interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
7
DPDM_INT_UNMA
SK
Unmasks DPDM Interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
6
QHIF_INT_UNMAS
K
Unmasks USBQ HIF command interrupt
Only valid when WiMAX Q is available.
1'b0: Mask interrupt
1'b1: Unmask interrupt
5
QINT_UNMASK
Unmasks USBQ Interrupt
Only valid when USBQ is available.
.
1'b0: Mask interrupt
1'b1: Unmask interrupt
4
PSR_INT_UNMASK
Unmasks packet sequence recorder interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
3
DMA_INT_UNMAS
K
Unmasks DMA interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
2
USBCOM_INT_UN
MASK
Unmasks USB common interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
1
RX_INT_UNMASK
Unmasks endpoint Rx interrupt
1'b0: Mask interrupt
1'b1: Unmask interrupt
0
TX_INT_UNMASK
Unmasks endpoint Tx Interrupt
1'b0: Mask interrupt
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MT2523 Series Reference Manual
Bit(s)
Name
Description
1'b1: Unmask interrupt
A09000A
8
Bit
Name
Type
Reset
Bit
USB Level 1 Interrupt Polarity Register
USB_L1INTP
31
30
29
28
15
14
13
12
Name
Type
Reset
27
26
25
11
10
9
DR
VV
BU
S_I
NT
_P
OL
ID
DIG
_IN
T_
PO
L
RW
0
RW
1
PO
WE
RD
WN
_IN
T_
PO
L
RW
0
00000200
24
23
22
21
20
19
18
17
16
8
7
6
5
4
3
2
1
0
VB
US
VA
LID
_IN
T_
PO
L
RW
0
Bit(s)
Name
Description
11
POWERDWN_INT_
POL
POWERDWN interrupt polarity
1'b0: Interrupt trigger when POWERDWN is 1.
1'b1: Interrupt trigger when POWERDWN is 0.
10
DRVVBUS_INT_PO
L
DRVVBUS interrupt polarity
1'b0: Interrupt trigger when DRVVBUS is 1.
1'b1: Interrupt trigger when DRVVBUS is 0.
9
IDDIG_INT_POL
IDDIG interrupt polarity
1'b0: Interrupt trigger when IDDIG is 1.
1'b1: Interrupt trigger when IDDIG is 0.
8
VBUSVALID_INT_P
OL
VBUSVALID interrupt polarity
1'b0: Interrupt trigger when VBUSVALID is 1.
1'b1: Interrupt trigger when VBUSVALID is 0.
A09000A
C
Bit
Name
Type
Reset
Bit
USB Level 1 Interrupt Control Register
USB_L1INTC
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s)
Name
Description
0
USB_INT_SYNC
USB interrupt synchronization
1'b0: USB output interrupt is output directly.
1'b1: USB output interrupt is synchronized by MCU BUS clock registers.
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16
0
US
B_I
NT
_SY
NC
RW
0
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MT2523 Series Reference Manual
A0900102
Bit
15
CSR0_PERI
13
12
EP0 Control Status Register
8
7
Name
FL
US
HFI
FO
SE
RVI
CES
ET
UP
ED
N
Type
Reset
A0
0
A0
0
Bit(s)
14
11
10
9
6
SE
RVI
CE
DR
XP
KT
RD
Y
A0
0
0000
5
4
3
2
1
0
SE
ND
ST
AL
L
SET
UP
EN
D
DA
TA
EN
D
SE
NT
ST
AL
L
TX
PK
TR
DY
RX
PK
TR
DY
A0
0
RU
0
A0
0
RW
0
A0
0
RU
0
Name
Description
8
FLUSHFIFO
The CPU writes 1 to this bit to flush the next packet to be
transmitted/read from the Endpoint 0 FIFO. It is cleared
automatically. The FIFO pointer is reset and the TxPktRdy/RxPktRdy
bit (below) is cleared. May be set simultaneously with TxPktRdy to
abort the packet that is currently loaded into FIFO.
Note: FlushFIFO should only be used when TxPktRdy/RxPktRdy is set. In other
cases, it may cause data corruption.
7
SERVICESETUPEDN
The CPU writes 1 to this bit to clear the SetupEnd bit.
It is cleared automatically.
6
SERVICEDRXPKTR
DY
The CPU writes 1 to this bit to clear the RxPktRdy bit.
It is cleared automatically.
SENDSTALL
The CPU writes 1 to this bit to terminate the current transaction. The
STALL handshake will be transmitted, and this bit will be cleared
automatically.
Note: The FIFO should be flushed before SendStall is set.
SETUPEND
This bit will be set when a control transaction ends before the
DataEnd bit is set. An interrupt will be generated and the FIFO
flushed at this time. The bit is cleared by the CPU writing 1 to the
ServicedSetupEnd bit.
3
DATAEND
The CPU sets up this bit when setting TxPktRdy for the last data
packet, when clearing RxPktRdy after unloading the last data packet,
and when setting up TxPktRdy for a 0 length data packet. It is cleared
automatically.
2
SENTSTALL
This bit is set when a STALL handshake is transmitted. The CPU
should clear this bit.
Write 0 to clear it.
1
TXPKTRDY
The CPU sets up this bit after loading a data packet into the FIFO. It is
cleared automatically when a data packet has been transmitted. An
interrupt is also generated at this point (if enabled)
0
RXPKTRDY
This bit is set when a data packet has been received. An interrupt is
generated when this bit is set. The CPU clears this bit by setting up
the ServicedRxPktRdy bit.
5
4
A0900108
Bit
Name
Type
Reset
15
COUNT0
14
13
EP0 Received Bytes Register
12
11
10
9
8
7
6
5
0
0
0000
4
3
2
EP0_RX_COUNT
RU
0
0
0
1
0
0
0
Bit(s)
Name
Description
6:0
EP0_RX_COUNT
Count0 is a 7-bit read-only register that indicates the number of
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MT2523 Series Reference Manual
Bit(s)
Name
Description
received data bytes in the Endpoint 0 FIFO. The value returned
changes as the contents of the FIFO change and is only valid when
RxPktRdy (IDXEPR0.CSR0.bit0) is set.
A090010A
Bit
Name
Type
Reset
15
Bit(s)
Type0
14
13
EP0 Type Register
12
11
10
9
8
7
6
EP0_Type
RW
0
0
Name
00
5
4
3
2
1
0
Description
Operating speed of the target device when the core is configured with
the multipoint option. When the core is not configured with the
multipoint option, these bits should not be accessed
2'b00: Unused
7:6
EP0_Type
2'b01: High
2'b10: Full
2'b11: Low
A090010B
NAKLIMT0
Bit
Name
Type
Reset
14
15
12
11
10
9
8
7
6
00
5
4
0
Bit(s)
4:0
A090010C
Bit
Name
Type
Reset
13
NAK Limit Register
3
2
1
NAKLIMIT0
RW
0
0
0
0
0
Name
Description
NAKLIMIT0
(Host mode only) NAKLimit0 is a 5-bit register that sets up the
number of frames/microframes (high-speed transfers) after which
Endpoint 0 should time out on receiving a stream of NAK responses.
(Equivalent settings for other endpoints can be made through their
TxInterval and RxInterval registers.). The number of
frames/microframes selected is 2(m-1) (where m is the value set in
the register, valid values 2 - 16). If the host receives NAK responses
from the target for more frames than the number represented by the
limit set in this register, the endpoint will be halted.
Note: Value 0 or 1 disables the NAK timeout function.
SRAMCONFI
GSIZE
SRAM Size Register
15
14
13
12
11
10
9
0
0
0
0
1
0
0
8
7
SRAM_SIZE
RO
0
0
0800
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Bit(s)
Name
Description
15:0
SRAM_SIZE
Depth of SRAM with data bus width 32 bits.
For example, if SRAM is configured to 8KB, SRAM_SIZE will be 16'h800.
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MT2523 Series Reference Manual
A090010E
Bit
Name
Type
Reset
15
HBCONFIGD
ATA
14
13
High Bind-width Configuration Register
12
11
10
9
8
7
6
5
4
NUM_HB_EPR
RO
0
0
0
0
00
3
2
Bit(s)
Name
Description
7:4
NUM_HB_EPR
Number of high bind-width RX endpoints
3:0
NUM_HB_EPT
Number of high bind-width TX endpoints
A090010F
Bit
15
CONFIGDAT
A
14
13
1
0
NUM_HB_EPT
RO
0
0
0
0
Core Configuration Register
12
11
10
9
8
7
6
5
1F
4
3
2
1
SO
FTC
ON
E
RO
1
Name
MP
RX
E
MP
TX
E
BIG
EN
DIA
N
HB
RX
E
HB
TX
E
DY
NFI
FO
SIZ
IN
G
Type
Reset
RO
0
RO
0
RO
0
RO
1
RO
1
RO
1
0
UT
MI
DA
TA
WI
DT
H
RO
1
Bit(s)
Name
Description
7
MPRXE
When set to 1, automatic amalgamation of bulk packets will be
selected.
6
MPTXE
When set to 1, automatic splitting of bulk packets will be selected.
5
BIGENDIAN
Set to 1 indicates big-endian ordering is selected.
4
HBRXE
Set to 1 indicates high-bandwidth Rx ISO Endpoint Support is
selected.
3
HBTXE
Set to 1 indicates high-bandwidth Tx ISO Endpoint Support is
selected.
2
DYNFIFOSIZING
Set to 1 indicates Dynamic FIFO Sizing option is selected.
1
SOFTCONE
Set to 1 indicates Soft Connect/Disconnect option is selected.
0
UTMIDATAWIDTH
Indicates selected UTMI+ data width
1'b0: 8 bits
1'b1: 16 bits
A0900110
Bit
Name
Type
Reset
15
TX1MAP
14
13
TX1MAP Register
12
0
M1
RW
11
10
9
0
0
0
8
7
6
0000
5
4
3
2
MAXIMUM_PAYLOAD_TRANSACTION
RW
0
0
0
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
12:11
M1
Maximum payload size for indexed TX endpoint, M1 packet
multiplier m maximum payload transaction register
10:0
MAXIMUM_PAYLO
AD_TRANSACTION
The TxMaxP register defines the maximum amount of data that can
be transferred through the selected Tx endpoint in a single operation.
There is a TxMaxP register for each Tx endpoint (except for Endpoint
0). Bits 10~0 define (in bytes) the maximum payload transmitted in a
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MT2523 Series Reference Manual
Bit(s)
Name
Description
single transaction. The value set can be up to 1024 bytes but is subject
to the constraints placed by the USB Specification on packet sizes for
Bulk, Interrupt and Isochronous transfers in full-speed and highspeed operations. Where the option of high-bandwidth isochronous
endpoints or of packet splitting on bulk endpoints has been taken
when the core is configured, the register will include either 2 or 5
further bits that define a multiplier m which is equal to one more
than the value recorded. In the case of bulk endpoints with the packet
splitting option enabled, the multiplier m can be up to 32 and defines
the maximum number of 'USB' packets (i.e. packets for transmission
over the USB) of the specified payload into which a single data packet
placed in the FIFO should be split, prior to the transfer. (If the packet
splitting option is not enabled, bit15-13 will not be implemented and
bit12-11 (if included) will be ignored.)
Note: The data packet should be an exact multiple of the payload specified by
bit10~0, which is itself required to be one of 8, 16, 32, 64 or (in the case of high
speed transfers) 512 bytes. For isochronous endpoints operating in high-speed
mode and with the High-bandwidth option enabled, m may only be either 2 or 3
(corresponding to bit11 set or bit12 set respectively) and it specifies the
maximum number of such transactions that can take place in a single
microframe. If either bit11 or bit12 is not 0, the USB2.0 controller will
automatically split any data packet written to FIFO into up to 2 or 3 'USB'
packets, each containing the specified payload (or less). The maximum payload
for each transaction is 1024 bytes, so this allows up to 3072 bytes to be
transmitted in each microframe. (For Isochronous/Interrupt transfers in fullspeed mode, bit11 and 12 are ignored.) The value written to bit10~0 (multiplied
by m in the case of high-bandwidth Isochronous transfers) should match the
value given in the wMaxPacketSize field of the Standard Endpoint Descriptor for
the associated endpoint (see USB Specification Revision 2.0, Chapter 9). A
mismatch can cause unexpected results. The total amount of data represented by
the value written to this register (specified payload * m) must not exceed the
FIFO size for the Tx endpoint and should not exceed half the FIFO size if doublebuffering is required. If this register is changed after packets have been sent
from the endpoint, the Tx endpoint FIFO should be completely flushed (using
the FlushFIFO bit in TxCSR) after writing the new value to this register.
A0900112
Bit
15
TX1CSR_PER
I
14
13
12
11
10
FR
CD
AT
AT
OG
DM
AR
EQ
MO
DE
RW
0
RW
0
Name
AU
TO
SET
ISO
DM
AR
EQ
EN
Type
Reset
RW
0
RW
0
RW
0
Bit(s)
15
14
Tx1 CSR Register
9
8
SET
TX
PK
TR
DY
_T
WI
CE
A1
0
0000
7
6
5
4
3
2
1
0
INC
OM
PT
X
CL
RD
AT
AT
OG
SE
NT
ST
AL
L
SE
ND
ST
AL
L
FL
US
HFI
FO
UN
DE
RR
UN
FIF
ON
OT
EM
PT
Y
TX
PK
TR
DY
A1
0
A0
0
A1
0
RW
0
A0
0
A1
0
RU
0
A0
0
Name
Description
AUTOSET
If The CPU sets up this bit, TxPktRdy will be automatically set when
data of the maximum packet size (value in TxMaxP) is loaded into the
TxFIFO. If a packet of less than the maximum packet size is loaded,
TxPktRdy will have to be set manually.
ISO
The CPU sets up this bit to enable the Tx endpoint for Isochronous
transfers and clears it to enable the Tx endpoint for Bulk or Interrupt
transfers.
Note: This bit only takes effect in peripheral mode. In host mode, it
always returns to 0.
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MT2523 Series Reference Manual
Bit(s)
Name
Description
12
DMAREQEN
The CPU sets up this bit to enable the DMA request for the Tx
endpoint.
FRCDATATOG
The CPU sets up this bit to force the endpoint data toggle to switch
and the data packet to be cleared from the FIFO, regardless of
whether an ACK was received. This can be used by Interrupt Tx
endpoints that are used to communicate rate feedback for
Isochronous endpoints.
10
DMAREQMODE
The CPU sets up this bit to select DMA Request Mode 1 and clears it to
select DMA Request Mode 0.
Note: This bit should not be cleared either before or in the same cycle
as the DMAReqEn bit is cleared.
8
SETTXPKTRDY_TW
ICE
Indicates TxPktRdy had been set when it is 1'b1 already. Write 0 to
clear it.
7
INCOMPTX
When the endpoint is used for high-bandwidth
Isochronous/Interrupt transfers, this bit is set to indicate where a
large packet has been split into 2 or 3 packets for transmission but
insufficient IN tokens have been received to send all the parts.
Note: In anything other than a high-bandwidth transfer, this bit will
always return to 0.
Write 0 to clear it.
6
CLRDATATOG
The CPU writes 1 to this bit to reset the endpoint data toggle to 0.
SENTSTALL
This bit is set when a STALL handshake is transmitted. The FIFO will
be flushed and Tx interrupt generated if enabled and the TxPktRdy
bit is cleared. The CPU should clear this bit.
Write 0 to clear it.
SENDSTALL
The CPU writes 1 to this bit to issue a STALL handshake to an IN
token. The CPU clears this bit to terminate the stall condition.
Note: This bit has no effect where the endpoint is used for
Isochronous transfer. Otherwise, CPU should wait for SENTSTALL
interrupt to be generated before clearing the SENDSTALL bit.
3
FLUSHFIFO
The CPU writes 1 to this bit to flush the latest packet from the
endpoint TxFIFO. The FIFO pointer is reset, the TxPktRdy bit is
cleared and an interrupt is generated. May be set simultaneously
with TxPktRdy to abort the packet currently loaded into FIFO.
Note: FlushFIFO should only be used when TxPktRdy is set. In other cases, it
may cause data corruption. If the FIFO is double-buffered, FlushFIFO may need
to be set twice to completely clear the FIFO.
2
UNDERRUN
The USB will set up this bit if an IN token is received when the
TxPktRdy bit is not set. The CPU should clear this bit (write 0 to clear
it).
1
FIFONOTEMPTY
The USB sets up this bit when there is at least 1 packet in TxFIFO.
This bit will be asserted automatically when TXPKTRDY is set by CPU
and de-asserted when CPU flushes FIFO or sends a STALL packet.
TXPKTRDY
The CPU sets up this bit after loading a data packet into FIFO. It is
cleared automatically when a data packet has been transmitted. An
interrupt is also generated at this point (if enabled). TxPktRdy is also
automatically cleared (interrupt is generated) prior to loading a
second packet into a double-buffered FIFO.
11
5
4
0
A0900114
Bit
Name
Type
Reset
15
RX1MAP
14
13
RX1MAP Register
12
0
M1
RW
11
10
9
0
0
0
8
7
6
0000
5
4
3
2
MAXIMUM_PAYLOAD_TRANSACTION
RW
0
0
0
0
0
0
0
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1
0
0
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
12:11
M1
Maximum payload size for indexed RX endpoint, M1 packet
multiplier m
MAXIMUM_PAYLO
AD_TRANSACTION
The RxMaxP register defines the maximum amount of data that can
be transferred through the selected Rx endpoint in a single
operation. There is a RxMaxP register for each Rx endpoint (except
for Endpoint 0). Bit10~0 define (in bytes) the maximum payload
transmitted in a single transaction. The value set can be up to 1024
bytes but is subject to the constraints placed by the USB Specification
on packet sizes for Bulk, Interrupt and Isochronous transfers in fullspeed and high-speed operations.
Where the option of high-bandwidth isochronous endpoints or of combining
bulk packets has been taken when the core is configured, the register includes
either 2 or 5 further bits that define a multiplier m which is equal to one more
than the value recorded.
For Bulk endpoints with the packet combining option enabled, the multiplier m
can be up to 32 and defines the number of USB packets of the specified payload
which are to be combined into a single data packet within the FIFO. (If the
packet splitting option is not enabled, bit15~13 will not be implemented and
bit12~11 (if included) will be ignored.) For isochronous endpoints operating in
high-speed mode and with the high-bandwidth option enabled, m may only be
either 2 or 3 (corresponding to bit11 set or bit12 set respectively) and it specifies
the maximum number of such transactions that can take place in a single
microframe. If either bit11 or bit12 is not 0, the USB2.0 controller will
automatically combine the separate USB packets received in any microframe
into a single packet within the Rx FIFO. The maximum payload for each
transaction is 1024 bytes, so this allows up to 3072 bytes to be received in each
microframe.
(For Isochronous/Interrupt transfers in full-speed mode or if high-bandwidth is
not enabled, bit11 and 12 will be ignored.) The value written to bit10~0
(multiplied by m in the case of high-bandwidth Isochronous transfers) should
match the value given in the wMaxPacketSize field of the Standard Endpoint
Descriptor for the associated endpoint (see USB Specification Revision 2.0,
Chapter 9). A mismatch can cause unexpected results.
The total amount of data represented by the value written to this register
(specified payload * m) should not exceed the FIFO size for the OUT endpoint
and half the FIFO size if double-buffering is required.
10:0
A0900116
Bit
15
RX1CSR_PE
RI
RX1 CSR Register
14
13
12
11
Name
AU
TO
CL
EA
R
ISO
DM
AR
EQ
EN
DIS
NY
ET
_PI
DE
RR
DM
AR
EQ
MO
DE
Type
Reset
RW
0
RW
0
RW
0
RW
0
RW
0
Bit(s)
10
9
KE
EP
ER
RS
TA
TU
S
RW
0
0000
8
7
6
5
4
3
2
1
0
INC
OM
PR
X
CL
RD
TA
TO
G
SE
NT
ST
AL
L
SE
ND
ST
AL
L
FL
US
HFI
FO
DA
TA
ER
R
OV
ER
RU
N
FIF
OF
UL
L
RX
PK
TR
DY
A1
0
A0
0
A1
0
RW
0
A0
0
RU
0
A1
0
RU
0
A1
0
Name
Description
15
AUTOCLEAR
If the CPU sets up this bit, the RxPktRdy bit will be automatically
cleared when a packet of RxMaxP bytes has been unloaded from the
RxFIFO. When packets of less than the maximum packet size are
unloaded, RxPktRdy will have to be cleared manually.
Note: Maximum packet size-3,-2,-1 is handled like maximum packet size which
is auto cleared by hardware.
14
ISO
The CPU sets up this bit to enable the Rx endpoint for Isochronous
transfers and clears it to enable the Rx endpoint for Bulk/Interrupt
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MT2523 Series Reference Manual
Bit(s)
Name
Description
transfers.
DMAREQEN
The CPU sets up this bit to enable the DMA request for the Rx
endpoint.
DISNYET_PIDERR
The CPU sets up this bit to disable the sending of NYET handshakes.
When set, all successfully received Rx packets will be ACK'd
including at the point at which the RxFIFO becomes full.
Note: This bit only takes effect in high-speed mode, in which it should
be set for all interrupt endpoint.
This bit is set when there is a PID error in the received packet. It is cleared when
RxPktRdy is cleared or write 0 to clear it.
DMAREQMODE
The CPU sets up this bit to select DMA Request Mode 1 and clears it to
select DMA Request Mode 0. DMA Request Mode 1: Rx endpoint
interrupt is generated only when DMA Request Mode 1 and received a
short packet. RxDMAReq is generated when receiving a Max-Packetsize packet. DMA Request Mode 0: No Rx endpoint interrupt.
RxDMAReq will be generated when RxPktRdy is set.
KEEPERRSTATUS
This bit is used when endpoint works with USBQ and in
ISOCHRONOUS mode. When this bit is set, the isochronous error,
PIDERROR, INCOMPRX and DATAERROR will be kept and only
cleared by SW.
8
INCOMPRX
This bit will be set in an Isochronous transfer if the packet in the
RxFIFO is incomplete because parts of the data are not received.
When KeepErrorStatus = 0, it will be cleared when RxPktRdy is
cleared or write 0 to clear it.
Note: In anything other than a Isochronous transfer, this bit will always return 0.
Write 0 to clear it.
7
CLRDTATOG
The CPU writes 1 to this bit to reset the endpoint data toggle to 0.
6
SENTSTALL
This bit is set when a STALL handshake is transmitted. The CPU
should clear this bit. An interrupt will be generated when the bit is
set.
Write 0 to clear it.
5
SENDSTALL
The CPU writes 1 to this bit to issue a STALL handshake. The CPU
clears this bit to terminate the stall condition.
Note: This bit has no effect where the endpoint is being used for ISO transfers.
FLUSHFIFO
The CPU writes 1 to this bit to flush the next packet to be read from
the endpoint RxFIFO. The RxFIFO pointer is reset and the RxPktRdy
bit is cleared.
Note: FlushFIFO should only be used when RxPktRdy is set. In other cases, it
may cause data corruption. If the RxFIFO is double buffered, FlushFIFO may
need to be set twice to completely clear the RxFIFO.
DATAERR
This bit will be set when RxPktRdy is set if the data packet has a CRC
or bit-stuff error in it. Cleared when RxPktRdy is cleared.
Note: This bit is only valid when the endpoint is operating in ISO mode. In Bulk
mode, it always returns to 0.
2
OVERRUN
This bit will be set if an OUT packet cannot be loaded into RxFIFO.
The CPU should clear this bit (write 0 to clear it).
Note: This bit is only valid when the endpoint is operating in ISO mode. In Bulk
mode, it always returns to 0. The new incoming packet will not be written to
RxFIFO.
1
FIFOFULL
This bit will be set when no more packets can be loaded into RxFIFO.
RXPKTRDY
This bit will be set when a data packet has been received (to RxFIFO).
The CPU should clear this bit when the packet has been unloaded
from RxFIFO. An interrupt will be generated when the bit is set.
Write 0 to clear it.
13
12
11
9
4
3
0
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MT2523 Series Reference Manual
A0900118
RX1COUNT
Bit
Name
Type
Reset
14
15
Bit(s)
13:0
A090011A
Bit
15
Rx1 Count Register
13
12
11
10
9
8
0
0
0
0
0
0
6
RXCOUNT
RU
0
0
0000
5
4
3
2
1
0
0
0
0
0
0
0
Name
Description
RXCOUNT
It is a 14-bit read-only register that holds the number of received data
bytes in the packet in RxFIFO.
Note: The value returned changes as the FIFO is unloaded and is only valid when
RxPktRdy(RxCSR.D0) is set.
TX1TYPE
14
13
12
Tx1Type Register
11
10
9
8
Name
Type
Reset
Bit(s)
7
7
6
TX_SPEE
D
RW
0
0
00
5
4
TX_PROT
OCOL
RW
0
0
3
2
1
0
TX_TARGET_EP_NUM
BER
RW
0
0
0
0
Name
Description
TX_SPEED
Operating speed of the target device when the core is configured with
the multipoint option
When the core is not configured with the multipoint option, these bits should not
be accessed.
2'b00: Unused
2'b01: High
2'b10: Full
2'b11: Low
5:4
TX_PROTOCOL
The CPU should set up this to select the required protocol for the Tx
endpoint.
2'b00: Illegal
2'b01: Isochronous
2'b10: Bulk
2'b11: Interrupt
3:0
TX_TARGET_EP_N
UMBER
The CPU should set this value to the endpoint number containing in
the Tx endpoint descriptor returned to the USB2.0 controller during
device enumeration.
7:6
A090011B
Bit
Name
Type
Reset
Bit(s)
7:0
15
TX1INTERVA
L
14
13
12
Tx1Interval Register
11
10
9
8
7
6
00
5
4
3
2
1
0
TX_POLLING_INTERVAL_NAK_LIMIT_M
RW
0
0
0
0
0
0
0
0
Name
Description
TX_POLLING_INTE
RVAL_NAK_LIMIT_
M
(Host mode only) TxInterval Register TxInterval is an 8-bit register
that, for Interrupt and Isochronous transfers, defines the polling
interval for the currently-selected Tx endpoint. For Bulk endpoints,
this register sets up the number of frames/microframes after which
the endpoint should time out on receiving a stream of NAK
responses. There is a TxInterval register for each configured Tx
endpoint (except for Endpoint 0).
In each case the value that is set defines a number of frames/microframes (high
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MT2523 Series Reference Manual
Bit(s)
Name
Description
speed transfers), as the following:
Transfer Type | Speed | Valid values (m) | Interpretation
Interrupt | Low Speed or Full Speed | 1-255 | Polling interval is m frames.
Interrupt | High Speed | 1-16 | Polling interval is 2^(m-1) microframes
Isochronous | Full Speed or High Speed | 1-16 | Polling interval is 2^(m-1)
frames/microframes
Bulk | Full Speed or High Speed | 2-16 | NAK Limit is 2^(m-1)
frames/microframes.
Note: Value 0 or 1 disables the NAK timeout function. The register should be set
before TxType for Bulk endpoint.
A090011C
Bit
15
RX1TYPE
14
13
12
Rx1Type Register
11
10
9
8
Name
7
6
RXSPEED
Type
Reset
0
Bit(s)
RW
0
00
5
4
RX_PROT
OCOL
RW
0
0
3
2
1
0
RX_TARGET_EP_NUM
BER
RW
0
0
0
0
Name
Description
RXSPEED
Operating speed of the target device when the core is configured with
the multipoint option
When the core is not configured with the multipoint option, these bits should not
be accessed.
2'b00: Unused
2'b01: High
2'b10: Full
2'b11: Low
5:4
RX_PROTOCOL
The CPU should set up this to select the required protocol for the Tx
endpoint.
2'b00: Illegal
2'b01: Isochronous
2'b10: Bulk
2'b11: Interrupt
3:0
RX_TARGET_EP_N
UMBER
The CPU should set this value to the endpoint number containing in
the Tx endpoint descriptor returned to the USB2.0 controller during
device enumeration.
7:6
A090011D
Bit
Name
Type
Reset
Bit(s)
7:0
15
RX1INTERVA
L
14
13
12
Rx1Interval Register
11
10
9
8
7
6
5
00
4
3
2
1
0
RX_POLLING_INTERVAL_NAK_LIMIT_M
RW
0
0
0
0
0
0
0
0
Name
Description
RX_POLLING_INTE
RVAL_NAK_LIMIT_
M
RxInterval Register RxInterval is an 8-bit register that, for Interrupt
and Isochronous transfers, defines the polling interval for the
currently selected Rx endpoint. For Bulk endpoints, this register sets
up the number of frames/microframes after which the endpoint
should time out on receiving a stream of NAK responses. There is a
RxInterval register for each configured Rx endpoint (except for
Endpoint 0).
RX POLLING INTERVAL / NAK LIMIT (M), (Host mode only)
In each case the value that is set defines a number of frames/microframes (high
speed transfers), as the following:
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MT2523 Series Reference Manual
Bit(s)
Name
Description
Transfer Type Speed Valid values (m) Interpretation
Interrupt Low Speed or Full Speed 1 - 255 Polling interval is m frames.
High Speed 1 - 16 Polling interval is 2(m-1) microframes
Isochronous Full Speed or High Speed 1 - 16 Polling interval is 2(m-1)
frames/microframes
Bulk Full Speed or High Speed 2 - 16 NAK Limit is 2(m-1) frames/microframes.
Note: Value 0 or 1 disables the NAK timeout function. The register should be set
before RxType for Bulk endpoint.
A090011F
Bit
Name
Type
Reset
15
FIFOSIZE1
14
13
EP1 Configured FIFO Size Register
12
11
10
9
8
7
1
6
5
RXFIFOSIZE
DC
0
1
AA
4
3
0
1
Name
Description
7:4
RXFIFOSIZE
Indicates the RxFIFO size of 2^n bytes
Example: Value 10 means 2^10 = 1024 bytes.
3:0
TXFIFOSIZE
Indicates the TxFIFO size of 2^n bytes
Example: Value 10 means 2^10 = 1024 bytes.
Bit
Name
Type
Reset
15
TX2MAP
14
13
1
TXFIFOSIZE
DC
0
1
Bit(s)
A0900120
2
TX2MAP Register
12
0
M1
RW
11
10
9
0
0
0
8
7
6
0
0
0000
5
4
3
2
MAXIMUM_PAYLOAD_TRANSACTION
RW
0
0
0
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
12:11
M1
Maximum payload size for indexed TX endpoint, M1 packet
multiplier m maximum payload transaction register
MAXIMUM_PAYLO
AD_TRANSACTION
The TxMaxP register defines the maximum amount of data that can
be transferred through the selected Tx endpoint in a single operation.
There is a TxMaxP register for each Tx endpoint (except for Endpoint
0). Bit10~0 define (in bytes) the maximum payload transmitted in a
single transaction. The value set can be up to 1024 bytes but is subject
to the constraints placed by the USB Specification on packet sizes for
Bulk, Interrupt and Isochronous transfers in full-speed and highspeed operations. Where the option of high-bandwidth Isochronous
endpoints or of packet splitting on Bulk endpoints has been taken
when the core is configured, the register includes either 2 or 5
further bits that define a multiplier m which is equal to one more
than the value recorded. In the case of Bulk endpoints with the
packet splitting option enabled, the multiplier m can be up to 32 and
defines the maximum number of 'USB' packets (i.e. packets for
transmission over the USB) of the specified payload into which a
single data packet placed in the FIFO should be split, prior to
transfer. (If the packet splitting option is not enabled, bit15-13 will
not be implemented and bit12-11 (if included) will be ignored.)
Note: The data packet should be an exact multiple of the payload specified by
bit10~0, which is itself required to be one of 8, 16, 32, 64 or (in the case of highspeed transfers) 512 bytes. For Isochronous endpoints operating in high-speed
mode and with the high-bandwidth option enabled, m may only be either 2 or 3
(corresponding to bit11 set or bit12 set respectively) and it specifies the
maximum number of such transactions that can take place in a single
microframe. If either bit11 or bit12 is not 0, the USB2.0 controller will
10:0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
automatically split any data packet written to the FIFO into up to 2 or 3 'USB'
packets, each containing the specified payload (or less). The maximum payload
for each transaction is 1024 bytes, so this allows up to 3072 bytes to be
transmitted in each microframe. (For Isochronous/Interrupt transfers in fullspeed mod, bit11 and 12 are ignored.) The value written to bit10~0 (multiplied
by m in the case of high-bandwidth Isochronous transfers) should match the
value given in the wMaxPacketSize field of the Standard Endpoint Descriptor for
the associated endpoint (see USB Specification Revision 2.0, Chapter 9). A
mismatch can cause unexpected results. The total amount of data represented by
the value written to this register (specified payload * m) should not exceed the
FIFO size for the Tx endpoint and half the FIFO size if double-buffering is
required. If this register is changed after packets have been sent from the
endpoint, the Tx endpoint FIFO should be completely flushed (using the
FlushFIFO bit in TxCSR) after writing the new value to this register.
TX2CSR_PE
RI
A0900122
Bit
15
14
13
12
11
10
FR
CD
AT
AT
OG
DM
AR
EQ
MO
DE
RW
0
RW
0
Name
AU
TO
SET
ISO
DM
AR
EQ
EN
Type
Reset
RW
0
RW
0
RW
0
Bit(s)
Tx2 CSR Register
9
8
SET
TX
PK
TR
DY
_T
WI
CE
A1
0
0000
7
6
5
4
3
2
1
0
INC
OM
PT
X
CL
RD
AT
AT
OG
SE
NT
ST
AL
L
SE
ND
ST
AL
L
FL
US
HFI
FO
UN
DE
RR
UN
FIF
ON
OT
EM
PT
Y
TX
PK
TR
DY
A1
0
A0
0
A1
0
RW
0
A0
0
A1
0
RU
0
A0
0
Name
Description
AUTOSET
If The CPU sets up this bit, TxPktRdy will be automatically set when
data of the maximum packet size (value in TxMaxP) is loaded into the
TxFIFO. If a packet of less than the maximum packet size is loaded,
TxPktRdy will have to be set manually.
14
ISO
The CPU sets up this bit to enable the Tx endpoint for Isochronous
transfers and clears it to enable the Tx endpoint for Bulk or Interrupt
transfers.
Note: This bit only takes effect in peripheral mode. In host mode, it always
returns to 0.
12
DMAREQEN
The CPU sets up this bit to enable the DMA request for the Tx
endpoint.
FRCDATATOG
The CPU sets up this bit to force the endpoint data toggle to switch
and the data packet to be cleared from FIFO, regardless of whether
an ACK is received. This can be used by Interrupt Tx endpoints that
are used to communicate rate feedback for isochronous endpoints.
10
DMAREQMODE
The CPU sets up this bit to select DMA Request Mode 1 and clears it to
select DMA Request Mode 0.
Note: This bit should not be cleared either before or in the same cycle as the
DMAReqEn bit is cleared.
8
SETTXPKTRDY_TW
ICE
Indicates TxPktRdy had been set when it is 1'b1 already. Write 0 to
clear it.
7
INCOMPTX
When the endpoint is used for high-bandwidth
Isochronous/Interrupt transfers, this bit is set to indicate where a
large packet has been split into 2 or 3 packets for transmission but
insufficient IN tokens have been received to send all the parts.
Note: In anything other than a high-bandwidth transfer, this bit will always
return to 0. Write 0 to clear it.
6
CLRDATATOG
The CPU writes 1 to this bit to reset the endpoint data toggle to 0.
15
11
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MT2523 Series Reference Manual
Bit(s)
Name
Description
SENTSTALL
This bit will be set when a STALL handshake is transmitted. The FIFO
will be flushed and Tx interrupt generated if enabled and the
TxPktRdy bit is cleared. The CPU should clear this bit.
Write 0 to clear it.
SENDSTALL
The CPU writes 1 to this bit to issue a STALL handshake to an IN
token. The CPU clears this bit to terminate the stall condition. Note:
This bit has no effect where the endpoint is being used for
Isochronous transfer. Otherwise, CPU should wait SENTSTALL
interrupt generated before clearning SENDSTALL bit.
3
FLUSHFIFO
The CPU writes 1 to this bit to flush the latest packet from the
endpoint TxFIFO. The FIFO pointer is reset, the TxPktRdy bit is
cleared and an interrupt is generated. May be set simultaneously
with TxPktRdy to abort the packet currently loaded into FIFO.
Note: FlushFIFO should only be used when TxPktRdy is set. In other cases, it
may cause data corruption. If the FIFO is double-buffered, FlushFIFO may need
to be set twice to completely clear the FIFO.
2
UNDERRUN
The USB will set up this bit if an IN token is received when the
TxPktRdy bit is not set. The CPU should clear this bit (write 0 to clear
it).
1
FIFONOTEMPTY
The USB sets up this bit when there is at least 1 packet in TxFIFO.
This bit will be asserted automatically when TXPKTRDY is set by CPU
and de-asserted when CPU flushes FIFO or sends a STALL packet.
TXPKTRDY
The CPU sets up this bit after loading a data packet into FIFO. It is
cleared automatically when a data packet has been transmitted. An
interrupt is also generated at this point (if enabled). TxPktRdy is also
automatically cleared (interrupt is generated) prior to loading a
second packet into a double-buffered FIFO.
5
4
0
A0900124
Bit
Name
Type
Reset
15
RX2MAP
14
13
RX2MAP Register
12
0
M1
RW
11
10
9
0
0
0
8
7
6
0000
5
4
3
2
MAXIMUM_PAYLOAD_TRANSACTION
RW
0
0
0
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
12:11
M1
Maximum payload size for indexed RX endpoint, M1 packet
multiplier m
MAXIMUM_PAYLO
AD_TRANSACTION
The RxMaxP register defines the maximum amount of data that can
be transferred through the selected Rx endpoint in a single
operation. There is a RxMaxP register for each Rx endpoint (except
for Endpoint 0). Bit10~0 define (in bytes) the maximum payload
transmitted in a single transaction. The value set can be up to 1024
bytes but is subject to the constraints placed by the USB Specification
on packet sizes for Bulk, Interrupt and Isochronous transfers in fullspeed and high-speed operations.
Where the option of high-bandwidth isochronous endpoints or of combining
bulk packets has been taken when the core is configured, the register includes
either 2 or 5 further bits that define a multiplier m which is equal to one more
than the value recorded.
For bulk endpoints with the packet combining option enabled, the multiplier m
can be up to 32 and defines the number of USB packets of the specified payload
which are to be combined into a single data packet within the FIFO. (If the
packet splitting option is not enabled, bit15-bit13 will not be implemented and
bit12-11 (if included) will be ignored.) For isochronous endpoints operating in
high-speed mode and with the high-bandwidth option enabled, m may only be
either 2 or 3 (corresponding to bit11 set or bit12 set respectively) and it specifies
the maximum number of such transactions that can take place in a single
10:0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
microframe. If either bit11 or bit12 is not 0, the USB2.0 controller will
automatically combine the separate USB packets received in any microframe
into a single packet within Rx FIFO. The maximum payload for each transaction
is 1024 bytes, so this allows up to 3072 bytes to be received in each microframe.
(For Isochronous/Interrupt transfers in full-speed mode or if high-bandwidth is
not enabled, bit11 and 12 will be ignored.) The value written to bit10~0
(multiplied by m in the case of high-bandwidth Isochronous transfers) should
match the value given in the wMaxPacketSize field of the Standard Endpoint
Descriptor for the associated endpoint (see USB Specification Revision 2.0,
Chapter 9). A mismatch can cause unexpected results.
The total amount of data represented by the value written to this register
(specified payload * m) should not exceed the FIFO size for the OUT endpoint
and half the FIFO size if double-buffering is required.
RX2CSR_PE
RI
A0900126
Bit
15
RX2 CSR Register
14
13
12
11
Name
AU
TO
CL
EA
R
ISO
DM
AR
EQ
EN
DIS
NY
ET
_PI
DE
RR
DM
AR
EQ
MO
DE
Type
Reset
RW
0
RW
0
RW
0
RW
0
RW
0
Bit(s)
10
9
KE
EP
ER
RS
TA
TU
S
RW
0
0000
8
7
6
5
4
3
2
1
0
INC
OM
PR
X
CL
RD
TA
TO
G
SE
NT
ST
AL
L
SE
ND
ST
AL
L
FL
US
HFI
FO
DA
TA
ER
R
OV
ER
RU
N
FIF
OF
UL
L
RX
PK
TR
DY
A1
0
A0
0
A1
0
RW
0
A0
0
RU
0
A1
0
RU
0
A1
0
Name
Description
15
AUTOCLEAR
If the CPU sets up this bit, the RxPktRdy bit will be automatically
cleared when a packet of RxMaxP bytes has been unloaded from
RxFIFO. When packets of less than the maximum packet size are
unloaded, RxPktRdy will have to be cleared manually.
Note: Maximum packet size-3,-2,-1 is handled like maximum packet size which
is auto cleared by hardware.
14
ISO
The CPU sets up this bit to enable the Rx endpoint for Isochronous
transfers and clears it to enable the Rx endpoint for bulk/interrupt
transfers.
13
DMAREQEN
The CPU sets up this bit to enable the DMA request for the Rx
endpoint.
DISNYET_PIDERR
The CPU sets up this bit to disable the sending of NYET handshakes.
When set, all successfully received Rx packets will be ACK'd
including at the point at which the RxFIFO becomes full.
Note: This bit only takes effect in high-speed mode, in which it should
be set for all interrupt endpoints.
This bit will be set when there is a PID error in the received packet. Cleared
when RxPktRdy is cleared or write 0 to clear it.
DMAREQMODE
The CPU sets up this bit to select DMA Request Mode 1 and clears it to
select DMA Request Mode 0.
DMA Request Mode 1: Rx endpoint interrupt is generated only when DMA
Request Mode 1 and received a short packet. RxDMAReq is generated when
receiving a Max-Packet-size packet.
DMA Request Mode 0: No Rx endpoint interrupt. RxDMAReq will be generated
when RxPktRdy is set.
9
KEEPERRSTATUS
This bit is used when endpoint works with USBQ and in
ISOCHRONOUS mode. When this bit is set, the isochronous error,
PIDERROR, INCOMPRX and DATAERROR will be kept and only
cleared by SW.
8
INCOMPRX
This bit will be set in an Isochronous transfer if the packet in the
12
11
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MT2523 Series Reference Manual
Bit(s)
Name
Description
RxFIFO is incomplete because parts of the data are not received.
When KeepErrorStatus = 0, it will be cleared when RxPktRdy is
cleared or write 0 to clear it.
Note: In anything other than a Isochronous transfer, this bit will always return 0.
Write 0 to clear it.
CLRDTATOG
The CPU writes 1 to this bit to reset the endpoint data toggle to 0.
SENTSTALL
This bit will be set when a STALL handshake is transmitted. The CPU
should clear this bit. An interrupt will be generated when the bit is
set.
Write 0 to clear it.
SENDSTALL
The CPU writes 1 to this bit to issue a STALL handshake. The CPU
clears this bit to terminate the stall condition.
Note: This bit has no effect where the endpoint is used for ISO
transfers.
FLUSHFIFO
The CPU writes 1 to this bit to flush the next packet to be read from
the endpoint RxFIFO. The RxFIFO pointer is reset and the RxPktRdy
bit is cleared.
Note: FlushFIFO should only be used when RxPktRdy is set. In other cases, it
may cause data corruption. If the RxFIFO is double buffered, FlushFIFO may
need to be set twice to completely clear RxFIFO.
DATAERR
This bit is set when RxPktRdy is set if the data packet has a CRC or
bit-stuff error in it. Cleared when RxPktRdy is cleared.
Note: This bit is only valid when the endpoint is operating in ISO mode. In bulk
mode, it always returns to 0.
2
OVERRUN
This bit will be set if an OUT packet cannot be loaded into RxFIFO.
The CPU should clear this bit (write 0 to clear it).
Note: This bit is only valid when the endpoint is operating in ISO mode. In bulk
mode, it always returns to 0. The new incoming packet will not be written to
RxFIFO.
1
FIFOFULL
This bit will be set when no more packets can be loaded into RxFIFO.
RXPKTRDY
This bit will be set when a data packet has been received (to RxFIFO).
The CPU should clear this bit when the packet has been unloaded
from RxFIFO. An interrupt will be generated when the bit is set.
Write 0 to clear it.
7
6
5
4
3
0
A0900128
RX2COUNT
Bit
Name
Type
Reset
14
15
Bit(s)
13:0
A090012A
Bit
Name
Type
Reset
15
Rx2 Count Register
13
12
11
10
9
8
0
0
0
0
0
0
7
6
RXCOUNT
RU
0
0
0000
5
4
3
2
1
0
0
0
0
0
0
0
Name
Description
RXCOUNT
It is a 14-bit read-only register that holds the number of received data
bytes in the packet in RxFIFO.
Note: The value returned changes as the FIFO is unloaded and is only valid when
RxPktRdy(RxCSR.D0) is set.
TX2TYPE
14
13
12
Tx2Type Register
11
10
9
8
7
6
TX_SPEE
D
RW
0
0
© 2015 - 2018 Airoha Technology Corp.
00
5
4
TX_PROT
OCOL
RW
0
0
3
2
1
0
TX_TARGET_EP_NUM
BER
RW
0
0
0
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
TX_SPEED
Operating speed of the target device when the core is configured with
the multipoint option
When the core is not configured with the multipoint option, these bits should not
be accessed.
2'b00: Unused
2'b01: High
2'b10: Full
2'b11: Low
5:4
TX_PROTOCOL
The CPU should set up this to select the required protocol for the Tx
endpoint.
2'b00: Illegal
2'b01: Isochronous
2'b10: Bulk
2'b11: Interrupt
3:0
TX_TARGET_EP_N
UMBER
The CPU should set this value to the endpoint number containing in
the Tx endpoint descriptor returned to the USB2.0 controller during
device enumeration.
7:6
A090012B
Bit
Name
Type
Reset
15
Bit(s)
7:0
14
13
12
Tx2Interval Register
11
10
9
8
7
6
5
00
4
3
2
1
0
TX_POLLING_INTERVAL_NAK_LIMIT_M
RW
0
0
0
0
0
0
0
0
Name
Description
TX_POLLING_INTE
RVAL_NAK_LIMIT_
M
(Host mode only) TxInterval Register TxInterval is an 8-bit register
that, for Interrupt and Isochronous transfers, defines the polling
interval for the currently selected Tx endpoint. For bulk endpoints,
this register sets up the number of frames/microframes after which
the endpoint should time out on receiving a stream of NAK
responses. There is a TxInterval register for each configured Tx
endpoint (except for Endpoint 0).
In each case the value that is set defines a number of frames/microframes (high
speed transfers), as the following:
Transfer Type | Speed | Valid values (m) | Interpretation
Interrupt | Low Speed or Full Speed | 1-255 | Polling interval is m frames.
Interrupt | High Speed | 1-16 | Polling interval is 2^(m-1) microframes
Isochronous | Full Speed or High Speed | 1-16 | Polling interval is 2^(m-1)
frames/microframes
Bulk | Full Speed or High Speed | 2-16 | NAK Limit is 2^(m-1)
frames/microframes.
Note: Value 0 or 1 disables the NAK timeout function. The register should be set
before TxType for Bulk endpoint.
A090012C
Bit
TX2INTERVA
L
15
RX2TYPE
14
13
Name
12
Rx2Type Register
11
10
9
8
7
6
RXSPEED
Type
Reset
0
RW
0
00
5
4
RX_PROT
OCOL
RW
0
0
3
2
1
0
RX_TARGET_EP_NUM
BER
RW
0
0
0
0
Bit(s)
Name
Description
7:6
RXSPEED
Operating speed of the target device when the core is configured with
the multipoint option
When the core is not configured with the multipoint option, these bits should not
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MT2523 Series Reference Manual
Bit(s)
Name
Description
be accessed.
2'b00: Unused
2'b01: High
2'b10: Full
2'b11: Low
5:4
RX_PROTOCOL
The CPU should set up this to select the required protocol for the Tx
endpoint.
2'b00: Illegal
2'b01: Isochronous
2'b10: Bulk
2'b11: Interrupt
3:0
RX_TARGET_EP_N
UMBER
The CPU should set this value to the endpoint number containing in
the Tx endpoint descriptor returned to the USB2.0 controller during
device enumeration.
A090012D
Bit
Name
Type
Reset
15
Bit(s)
7:0
14
13
12
Rx2Interval Register
11
10
9
8
7
6
5
00
4
3
2
1
0
RX_POLLING_INTERVAL_NAK_LIMIT_M
RW
0
0
0
0
0
0
0
0
Name
Description
RX_POLLING_INTE
RVAL_NAK_LIMIT_
M
RxInterval Register RxInterval is an 8-bit register that, for Interrupt
and Isochronous transfers, defines the polling interval for the
currently selected Rx endpoint. For bulk endpoints, this register sets
up the number of frames/microframes after which the endpoint
should time out on receiving a stream of NAK responses. There is a
RxInterval register for each configured Rx endpoint (except for
Endpoint 0).
RX POLLING INTERVAL / NAK LIMIT (M), (Host mode only)
In each case the value that is set defines a number of frames/microframes (high
speed transfers), as the following:
Transfer Type Speed Valid values (m) Interpretation
Interrupt Low Speed or Full Speed 1 - 255 Polling interval is m frames.
High Speed 1 - 16 Polling interval is 2(m-1) microframes
Isochronous Full Speed or High Speed 1 - 16 Polling interval is 2(m-1)
frames/microframes
Bulk Full Speed or High Speed 2 - 16 NAK Limit is 2(m-1) frames/microframes.
Note: Value 0 or 1 disables the NAK timeout function. The register should be set
before RxType for bulk endpoint.
A090012F
Bit
Name
Type
Reset
RX2INTERV
AL
15
FIFOSIZE2
14
13
12
EP2 Configured FIFO Size Register
11
10
9
8
7
1
6
5
RXFIFOSIZE
DC
0
1
AA
4
3
0
1
Bit(s)
Name
Description
7:4
RXFIFOSIZE
Indicates the RxFIFO size of 2^n bytes
Example: Value 10 means 2^10 = 1024 bytes.
© 2015 - 2018 Airoha Technology Corp.
2
1
TXFIFOSIZE
DC
0
1
0
0
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MT2523 Series Reference Manual
A0900130
Bit
Name
Type
Reset
15
TX3MAP
14
13
TX3MAP Register
12
0
M1
RW
11
10
9
0
0
0
8
7
6
0000
5
4
3
2
MAXIMUM_PAYLOAD_TRANSACTION
RW
0
0
0
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
12:11
M1
Maximum payload size for indexed TX endpoint, M1 packet
multiplier m maximum payload transaction register
MAXIMUM_PAYLO
AD_TRANSACTION
The TxMaxP register defines the maximum amount of data that can
be transferred through the selected Tx endpoint in a single operation.
There is a TxMaxP register for each Tx endpoint (except for Endpoint
0). Bit10~0 define (in bytes) the maximum payload transmitted in a
single transaction. The value set can be up to 1024 bytes but is subject
to the constraints placed by the USB Specification on packet sizes for
Bulk, Interrupt and Isochronous transfers in full-speed and highspeed operations. Where the option of high-bandwidth isochronous
endpoints or of packet splitting on bulk endpoints has been taken
when the core is configured, the register includes either 2 or 5
further bits that define a multiplier m which is equal to one more
than the value recorded. In the case of bulk endpoints with the packet
splitting option enabled, the multiplier m can be up to 32 and defines
the maximum number of 'USB' packets (i.e. packets for transmission
over the USB) of the specified payload into which a single data packet
placed in the FIFO should be split, prior to transfer. (If the packet
splitting option is not enabled, bit15-13 will not be implemented and
bit12-11 (if included) will be ignored.)
Note: The data packet should be an exact multiple of the payload specified by
bit10~0, which is itself required to be one of 8, 16, 32, 64 or (in the case of high
speed transfers) 512 bytes. For isochronous endpoints operating in high-speed
mode and with the high-bandwidth option enabled, m may only be either 2 or 3
(corresponding to bit11 set or bit12 set respectively) and it specifies the
maximum number of such transactions that can take place in a single
microframe. If either bit11 or bit 12 is not 0, the USB2.0 controller will
automatically split any data packet written to FIFO into up to 2 or 3 'USB'
packets, each containing the specified payload (or less). The maximum payload
for each transaction is 1024 bytes, so this allows up to 3072 bytes to be
transmitted in each microframe. (For Isochronous/Interrupt transfers in fullspeed mode, bit11 and 12 are ignored.) The value written to bit10~0 (multiplied
by m in the case of high-bandwidth Isochronous transfers) should match the
value given in the wMaxPacketSize field of the Standard Endpoint Descriptor for
the associated endpoint (see USB Specification Revision 2.0, Chapter 9). A
mismatch can cause unexpected results. The total amount of data represented by
the value written to this register (specified payload * m) should not exceed the
FIFO size for the Tx endpoint and half the FIFO size if double-buffering is
required. If this register is changed after packets have been sent from the
endpoint, the Tx endpoint FIFO should be completely flushed (using the
FlushFIFO bit in TxCSR) after writing the new value to this register.
10:0
A0900132
Bit
15
TX3CSR_PE
RI
14
13
Tx3 CSR Register
12
11
10
FR
CD
AT
AT
OG
DM
AR
EQ
MO
DE
RW
0
RW
0
Name
AU
TO
SET
ISO
DM
AR
EQ
EN
Type
Reset
RW
0
RW
0
RW
0
9
8
SET
TX
PK
TR
DY
_T
WI
CE
A1
0
0000
7
6
5
4
3
2
1
0
INC
OM
PT
X
CL
RD
AT
AT
OG
SE
NT
ST
AL
L
SE
ND
ST
AL
L
FL
US
HFI
FO
UN
DE
RR
UN
FIF
ON
OT
EM
PT
Y
TX
PK
TR
DY
A1
0
A0
0
A1
0
RW
0
A0
0
A1
0
RU
0
A0
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
AUTOSET
If the CPU sets up this bit, TxPktRdy will be automatically set when data
of the maximum packet size (value in TxMaxP) is loaded into TxFIFO. If a
packet of less than the maximum packet size is loaded, TxPktRdy will
have to be set manually.
14
ISO
The CPU sets up this bit to enable the Tx endpoint for Isochronous
transfers and clears it to enable the Tx endpoint for Bulk or Interrupt
transfers.
Note: This bit only takes effect in peripheral mode. In host mode, it always returns to
0.
12
DMAREQEN
The CPU sets up this bit to enable the DMA request for the Tx endpoint.
FRCDATATOG
The CPU sets up this bit to force the endpoint data toggle to switch and
the data packet to be cleared from FIFO, regardless of whether an ACK is
received. This can be used by interrupt Tx endpoints that are used to
communicate rate feedback for isochronous endpoints.
10
DMAREQMODE
The CPU sets up this bit to select DMA Request Mode 1 and clears it to
select DMA Request Mode 0.
Note: This bit should not be cleared either before or in the same cycle as the
DMAReqEn bit is cleared.
8
SETTXPKTRDY_
TWICE
Indicates TxPktRdy had been set when it is 1'b1 already. Write 0 to clear
it.
7
INCOMPTX
When the endpoint is used for high-bandwidth Isochronous/Interrupt
transfers, this bit is set to indicate where a large packet has been split
into 2 or 3 packets for transmission but insufficient IN tokens have been
received to send all the parts.
Note: In anything other than a high-bandwidth transfer, this bit will always return to
0.
Write 0 to clear it.
6
CLRDATATOG
The CPU writes 1 to this bit to reset the endpoint data toggle to 0.
SENTSTALL
This bit will be set when a STALL handshake is transmitted. The FIFO
will be flushed and Tx interrupt generated if enabled and the TxPktRdy
bit is cleared. The CPU should clear this bit.
Write 0 to clear it.
SENDSTALL
The CPU writes 1 to this bit to issue a STALL handshake to an IN token.
The CPU clears this bit to terminate the stall condition.
Note: This bit has no effect where the endpoint is used for Isochronous
transfer. Otherwise, CPU should wait for SENTSTALL interrupt to be
generated before clearing the SENDSTALL bit.
3
FLUSHFIFO
The CPU writes 1 to this bit to flush the latest packet from the endpoint
TxFIFO. The FIFO pointer is reset, the TxPktRdy bit is cleared and an
interrupt is generated. May be set simultaneously with TxPktRdy to abort
the packet currently loaded into FIFO.
Note: FlushFIFO should only be used when TxPktRdy is set. In other cases, it may
cause data corruption. If FIFO is double-buffered, FlushFIFO may need to be set
twice to completely clear FIFO.
2
UNDERRUN
The USB will set up this bit if an IN token is received when the TxPktRdy
bit not set. The CPU should clear this bit (write 0 to clear it).
1
FIFONOTEMPTY
The USB will set up this bit when there is at least 1 packet in TxFIFO. This
bit will be asserted automatically when TXPKTRDY is set by CPU and deasserted when CPU flush FIFO or send a STALL packet.
TXPKTRDY
The CPU will set up this bit after loading a data packet into FIFO. It is
cleared automatically when a data packet has been transmitted. An
interrupt is also generated at this point (if enabled). TxPktRdy is also
automatically cleared (interrupt is generated) prior to loading a second
packet into a double-buffered FIFO.
15
11
5
4
0
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MT2523 Series Reference Manual
A090013A
Bit
15
TX3TYPE
14
13
12
Tx3Type Register
11
10
9
8
Name
Type
Reset
Bit(s)
7
6
TX_SPEE
D
RW
0
0
00
5
4
TX_PROT
OCOL
RW
0
0
3
2
1
0
TX_TARGET_EP_NUM
BER
RW
0
0
0
0
Name
Description
TX_SPEED
Operating speed of the target device when the core is configured with
the multipoint option
When the core is not configured with the multipoint option, these bits should not
be accessed.
2'b00: Unused
2'b01: High
2'b10: Full
2'b11: Low
5:4
TX_PROTOCOL
The CPU should set up this to select the required protocol for the Tx
endpoint.
2'b00: Illegal
2'b01: Isochronous
2'b10: Bulk
2'b11: Interrupt
3:0
TX_TARGET_EP_N
UMBER
The CPU should set this value to the endpoint number containing in
the Tx endpoint descriptor returned to the USB2.0 controller during
device enumeration.
7:6
A090013B
Bit
Name
Type
Reset
Bit(s)
7:0
15
TX3INTERVA
L
14
13
12
Tx3Interval Register
11
10
9
8
7
6
5
00
4
3
2
1
0
TX_POLLING_INTERVAL_NAK_LIMIT_M
RW
0
0
0
0
0
0
0
0
Name
Description
TX_POLLING_INTE
RVAL_NAK_LIMIT_
M
(Host mode only) TxInterval Register TxInterval is an 8-bit register
that, for Interrupt and Isochronous transfers, defines the polling
interval for the currently selected Tx endpoint. For bulk endpoints,
this register sets up the number of frames/microframes after which
the endpoint should time out on receiving a stream of NAK
responses. There is a TxInterval register for each configured Tx
endpoint (except for Endpoint 0).
In each case the value that is set defines a number of frames/microframes (high
speed transfers), as the following:
Transfer Type | Speed | Valid values (m) | Interpretation
Interrupt | Low Speed or Full Speed | 1-255 | Polling interval is m frames.
Interrupt | High Speed | 1-16 | Polling interval is 2^(m-1) microframes
Isochronous | Full Speed or High Speed | 1-16 | Polling interval is 2^(m-1)
frames/microframes
Bulk | Full Speed or High Speed | 2-16 | NAK Limit is 2^(m-1)
frames/microframes.
Note: Value 0 or 1 disables the NAK timeout function. The register should be set
before TxType for Bulk endpoint.
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MT2523 Series Reference Manual
A090013F
Bit
Name
Type
Reset
15
FIFOSIZE3
14
13
EP3 Configured FIFO Size Register
12
11
10
9
8
7
6
5
4
2A
3
1
Name
Description
3:0
TXFIFOSIZE
Indicates the TxFIFO size of 2^n bytes
Example: Value 10 means 2^10 = 1024 bytes.
Bit
Name
Type
Reset
15
TX4MAP
14
13
1
TXFIFOSIZE
DC
0
1
Bit(s)
A0900140
2
TX4MAP Register
12
0
M1
RW
11
10
9
0
0
0
8
7
6
0
0
0000
5
4
3
2
MAXIMUM_PAYLOAD_TRANSACTION
RW
0
0
0
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
12:11
M1
Maximum payload size for indexed TX endpoint, M1 packet
multiplier m maximum payload transaction register
MAXIMUM_PAYLO
AD_TRANSACTION
The TxMaxP register defines the maximum amount of data that can
be transferred through the selected Tx endpoint in asingle operation.
There is a TxMaxP register for each Tx endpoint (except for Endpoint
0). Bit10~0 define (in bytes) the maximum payload transmitted in a
single transaction. The value set can be up to 1024 bytes but is subject
to the constraints placed by the USB Specification on packet sizes for
Bulk, Interrupt and Isochronous transfers in full-speed and highspeed operations. Where the option of high-bandwidth isochronous
endpoints or of packet splitting on bulk endpoints has been taken
when the core is configured, the register includes either 2 or 5
further bits that define a multiplier m which is equal to one more
than the value recorded. In the case of bulk endpoints with the packet
splitting option enabled, the multiplier m can be up to 32 and defines
the maximum number of 'USB' packets (i.e. packets for transmission
over the USB) of the specified payload into which a single data packet
placed in the FIFO should be split, prior to transfer. (If the packet
splitting option is not enabled, bit15-13 will not be implemented and
bit12-11 (if included) will be ignored.)
Note: The data packet should be an exact multiple of the payload specified by
bit10~0, which is itself required to be one of 8, 16, 32, 64 or (in the case of high
speed transfers) 512 bytes. For isochronous endpoints operating in high-speed
mode and with the high-bandwidth option enabled, m may only be either 2 or 3
(corresponding to bit11 set or bit12 set respectively) and it specifies the
maximum number of such transactions that can take place in a single
microframe. If either bit11 or bit12 is not 0, the USB2.0 controller will
automatically split any data packet written to the FIFO into up to 2 or 3 'USB'
packets, each containing the specified payload (or less). The maximum payload
for each transaction is 1024 bytes, so this allows up to 3072 bytes to be
transmitted in each microframe. (For Isochronous/Interrupt transfers in fullspeed mode, bit 11 and 12 are ignored.) The value written to bit10~0 (multiplied
by m in the case of high-bandwidth Isochronous transfers) should match the
value given in the wMaxPacketSize field of the Standard Endpoint Descriptor for
the associated endpoint (see USB Specification Revision 2.0, Chapter 9). A
mismatch can cause unexpected results. The total amount of data represented by
the value written to this register (specified payload * m) should not exceed the
FIFO size for the Tx endpoint and half the FIFO size if double-buffering is
required. If this register is changed after packets have been sent from the
endpoint, the Tx endpoint FIFO should be completely flushed (using the
FlushFIFO bit in TxCSR) after writing the new value to this register.
10:0
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MT2523 Series Reference Manual
TX4CSR_PE
RI
A0900142
Bit
15
14
13
12
11
10
FR
CD
AT
AT
OG
DM
AR
EQ
MO
DE
RW
0
RW
0
Name
AU
TO
SET
ISO
DM
AR
EQ
EN
Type
Reset
RW
0
RW
0
RW
0
Bit(s)
Tx4 CSR Register
9
8
SET
TX
PK
TR
DY
_T
WI
CE
A1
0
0000
7
6
5
4
3
2
1
0
INC
OM
PT
X
CL
RD
AT
AT
OG
SE
NT
ST
AL
L
SE
ND
ST
AL
L
FL
US
HFI
FO
UN
DE
RR
UN
FIF
ON
OT
EM
PT
Y
TX
PK
TR
DY
A1
0
A0
0
A1
0
RW
0
A0
0
A1
0
RU
0
A0
0
Name
Description
AUTOSET
If the CPU sets up this bit, TxPktRdy will be automatically set when
data of the maximum packet size (value in TxMaxP) is loaded into
TxFIFO. If a packet of less than the maximum packet size is loaded,
TxPktRdy will have to be set manually.
14
ISO
The CPU sets up this bit to enable the Tx endpoint for Isochronous
transfers and clears it to enable the Tx endpoint for Bulk or Interrupt
transfers.
Note: This bit only takes effect in peripheral mode. In host mode, it always
returns to 0.
12
DMAREQEN
The CPU sets up this bit to enable the DMA request for the Tx
endpoint.
FRCDATATOG
The CPU sets up this bit to force the endpoint data toggle to switch
and the data packet to be cleared from the FIFO, regardless of
whether an ACK is received. This can be used by Interrupt Tx
endpoints that are used to communicate rate feedback for
isochronous endpoints.
10
DMAREQMODE
The CPU sets up this bit to select DMA Request Mode 1 and clears it to
select DMA Request Mode 0.
Note: This bit should not be cleared either before or in the same cycle as the
DMAReqEn bit is cleared.
8
SETTXPKTRDY_TW
ICE
Indicates TxPktRdy had been set when it is 1'b1 already. Write 0 to
clear it.
7
INCOMPTX
When the endpoint is used for high-bandwidth
Isochronous/Interrupt transfers, this bit will be set to indicate where
a large packet has been split into 2 or 3 packets for transmission but
insufficient IN tokens have been received to send all the parts.
Note: In anything other than a high-bandwidth transfer, this bit will always
return to 0.
Write 0 to clear it.
6
CLRDATATOG
The CPU writes 1 to this bit to reset the endpoint data toggle to 0.
SENTSTALL
This bit will be set when a STALL handshake is transmitted. The FIFO
will be flushed and Tx interrupt generated if enabled and the
TxPktRdy bit is cleared. The CPU should clear this bit.
Write 0 to clear it.
SENDSTALL
The CPU writes 1 to this bit to issue a STALL handshake to an IN
token. The CPU clears this bit to terminate the stall condition.
Note: This bit has no effect where the endpoint is used for
Isochronous transfer. Otherwise, CPU should wait for SENTSTALL
interrupt to be generated before clearing the SENDSTALL bit.
FLUSHFIFO
The CPU writes 1 to this bit to flush the latest packet from the
endpoint TxFIFO. The FIFO pointer is reset, the TxPktRdy bit is
cleared and an interrupt is generated. May be set simultaneously
with TxPktRdy to abort the packet currently loaded into FIFO.
Note: FlushFIFO should only be used when TxPktRdy is set. In other cases, it
15
11
5
4
3
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MT2523 Series Reference Manual
Bit(s)
Name
Description
may cause data corruption. If the FIFO is double-buffered, FlushFIFO may need
to be set twice to completely clear the FIFO.
2
UNDERRUN
The USB will set up this bit if an IN token is received when the
TxPktRdy bit not set. The CPU should clear this bit (write 0 to clear
it).
1
FIFONOTEMPTY
The USB will set up this bit when there is at least 1 packet in the
TxFIFO. This bit will be asserted automatically when TXPKTRDY is
set by CPU and de-asserted when CPU flushes FIFO or sends a STALL
packet.
TXPKTRDY
The CPU will set up this bit after loading a data packet into FIFO. It is
cleared automatically when a data packet has been transmitted. An
interrupt is also generated at this point (if enabled). TxPktRdy is also
automatically cleared (interrupt is generated) prior to loading a
second packet into a double-buffered FIFO.
0
A090014A
Bit
15
TX4TYPE
14
13
12
Tx4Type Register
11
10
9
8
Name
Type
Reset
Bit(s)
7
6
TX_SPEE
D
RW
0
0
00
5
4
TX_PROT
OCOL
RW
0
0
3
2
1
0
TX_TARGET_EP_NUM
BER
RW
0
0
0
0
Name
Description
TX_SPEED
Operating speed of the target device when the core is configured with
the multipoint option
When the core is not configured with the multipoint option, these bits should not
be accessed.
2'b00: Unused
2'b01: High
2'b10: Full
2'b11: Low
5:4
TX_PROTOCOL
The CPU should set up this to select the required protocol for the Tx
endpoint.
2'b00: Illegal
2'b01: Isochronous
2'b10: Bulk
2'b11: Interrupt
3:0
TX_TARGET_EP_N
UMBER
The CPU should set this value to the endpoint number containing in
the Tx endpoint descriptor returned to the USB2.0 controller during
device enumeration.
7:6
A090014B
Bit
Name
Type
Reset
15
TX4INTERVA
L
14
13
12
Tx4Interval Register
11
10
9
8
7
6
5
00
4
3
2
1
0
TX_POLLING_INTERVAL_NAK_LIMIT_M
RW
0
0
0
0
0
0
0
0
Bit(s)
Name
Description
7:0
TX_POLLING_INTE
RVAL_NAK_LIMIT_
M
(Host mode only) TxInterval Register TxInterval is an 8-bit register
that, for Interrupt and Isochronous transfers, defines the polling
interval for the currently selected Tx endpoint. For bulk endpoints,
this register sets up the number of frames/microframes after which
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MT2523 Series Reference Manual
Bit(s)
Name
Description
the endpoint should time out on receiving a stream of NAK
responses. There is a TxInterval register for each configured Tx
endpoint (except for Endpoint 0).
In each case the value that is set defines a number of frames/microframes (high
speed transfers), as the following:
Transfer Type | Speed | Valid values (m) | Interpretation
Interrupt | Low Speed or Full Speed | 1-255 | Polling interval is m frames.
Interrupt | High Speed | 1-16 | Polling interval is 2^(m-1) microframes
Isochronous | Full Speed or High Speed | 1-16 | Polling interval is 2^(m-1)
frames/microframes
Bulk | Full Speed or High Speed | 2-16 | NAK Limit is 2^(m-1)
frames/microframes.
Note: Value 0 or 1 disables the NAK timeout function. The register should be set
before TxType for Bulk endpoint.
A090014F
Bit
Name
Type
Reset
15
FIFOSIZE4
14
13
12
EP4 Configured FIFO Size Register
11
10
9
8
7
6
5
4
2A
3
1
Bit(s)
Name
Description
3:0
TXFIFOSIZE
Indicates the TxFIFO size of 2^n bytes
Example: Value 10 means 2^10 = 1024 bytes.
A090020
0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
DMA Interrupt Status Register
DMA_INTR
30
29
28
27
26
25
13
12
11
10
9
8
0
0
15
14
0
DMA_INTR_UNMASK_SET
A0
0
0
0
0
0
0
DMA_INTR_UNMASK
RU
0
0
0
0
0
2
0
24
23
0
0
1
TXFIFOSIZE
DC
0
1
0
0
00000000
22
21
20
19
18
17
16
7
6
5
4
3
2
1
0
0
0
0
0
DMA_INTR_UNMASK_CLEAR
A0
0
0
0
0
0
0
DMA_INTR_STATUS
W1C
0
0
0
0
0
Bit(s)
Name
Description
31:24
DMA_INTR_UNMA
SK_SET
Sets DMA_INTR_UNMASK to 1
23:16
DMA_INTR_UNMA
SK_CLEAR
Clears DMA_INTR_UNMASK to 0
15:8
DMA_INTR_UNMA
SK
Unmasks DMA interrupts
The DMA interrupt will be generated when DMA_INTR_UNMASK and
DMA_INTR_STATUS are both 1.
DMA_INTR_STATU
S
Indicates DMA complete interrupt status, one bit per DMA channel
implemented
Bit 0 is used for DMA channel 1; bit 1 is used for DMA channel 2, etc. Write 1 to
clear it.
Note: DMA interrupt will be asserted after disabling the DMA enable when
receiving a null packet even thought DMA_COUNT_M still does not reach 0.
7:0
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MT2523 Series Reference Manual
A0900204
Bit
15
DMA_CNTL_
0
14
13
12
DMA Channel 0 Control Register
11
Name
DM
AA
BO
RT
Type
A0
RU
Reset
0
0
10
9
8
7
6
5
DM
AC
HE
N
BURST_M
ODE
BU
SE
RR
ENDPNT
RW
RU
RW
0
0
0
0
0
0
4
0
0000
3
1
0
INT
EN
DM
AM
OD
E
2
DM
ADI
R
DM
AE
N
RW
RW
RW
0
0
0
Oth
er
0
Bit(s)
Name
Description
13
DMAABORT
If SW needs to abort the current DMA transfer, set DMAABORT=1
and DMAEN=0. After the transfer is aborted completely, DMA
interrupt will occur.
11
DMACHEN
DMA channel enable monitor bit
10:9
BURST_MODE
2'b00: Burst Mode 0: Bursts of unspecified length
2'b01: Burst Mode 1: INCR4 or unspecified length
2'b10: Burst Mode 2: INCR8, INCR4 or unspecified length
2'b11: Burst Mode 3: INCR16, INCR8, INCR4 or unspecified length
8
BUSERR
Bus error
7:4
ENDPNT
Endpoint which DMA will transfer with
3
INTEN
Enables interrupt
2
DMAMODE
DMA mode
DMA mode 0: Single packet operation
DMA mode 1: Multi packets operation, with the configuration of DMAReqMode
in RXCSR bit 11 DMA mode 1 can support both known and unknown size
transaction.
1
DMADIR
Direction
0: DMA write (Rx endpoint)
1: DMA read (Tx endpoint)
DMAEN
Enables DMA
The bit will be cleared when the DMA transfer is completed. Programmers
should not disable DMA_en before the transfer is completed. If programmers
disable dma_en during the transfer, DMA will not stop immediately until the
last bus transfer is completed.
0
A090020
8
DMA_ADDR
_0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
30
Bit(s)
31:0
31
29
28
DMA Channel 0 Address Register
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
DMA_ADDR_0[31:16]
RW
0
0
0
0
0
0
0
0
0
0
DMA_ADDR_0[15:0]
RW
0
0
0
0
0
0
0
0
0
21
0
00000000
20
19
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
Name
Description
DMA_ADDR_0
32-bit DMA start address
Updated (increased) by USB2.0 controller automatically when multiple packet
DMA (DMA Mode = 1) is used
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MT2523 Series Reference Manual
A090020
C
DMA_COUN
T_0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
15
14
13
12
11
10
9
8
0
0
0
0
0
0
DMA Channel 0 Byte Count Register
23
0
7
22
00000000
21
20
19
18
5
4
3
2
0
0
0
0
DMA_COUNT_0[23:16]
RW
0
0
0
0
0
6
DMA_COUNT_0[15:0]
RW
0
0
0
0
17
16
0
0
1
0
0
0
Bit(s)
Name
Description
23:0
DMA_COUNT_0
24-bit DMA transfer count with byte unit
Updated (decreased) by USB2.0 controller automatically when each packet is
transferred.
A0900210
Bit
Name
Type
Reset
Bit
Name
Type
Reset
DMA Limiter Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
Bit(s)
7:0
A0900214
Bit
DMA_LIMIT
ER
15
DMA_LIMITER
RW
0
0
0
0
Name
Description
DMA_LIMITER
This register suppresses bus utilization of the DMA channel. The
value is from 0 to 255. 0 means no limitation, and 255 means totally
banned. The value between 0 and 255 means certain DMA can have
permission to use AHB every (4 x n) AHB clock cycles.
Note: It is not recommended to limit the bus utilization of the DMA channels
because this increases the latency of response to the masters, and the transfer
rate will decrease. Before using it, programmers should make sure that the bus
masters have some protective mechanism to avoid entering wrong states.
DMA_CNTL_
1
14
13
12
DMA Channel 1 Control Register
11
Name
DM
AA
BO
RT
Type
A0
RU
Reset
0
0
10
9
8
7
6
5
DM
AC
HE
N
BURST_M
ODE
BU
SE
RR
ENDPNT
RW
RU
RW
0
0
0
0
0
0
4
0
0000
3
1
0
INT
EN
DM
AM
OD
E
2
DM
ADI
R
DM
AE
N
RW
RW
RW
0
0
0
Oth
er
0
Bit(s)
Name
Description
13
DMAABORT
If SW needs to abort the current DMA transfer, set DMAABORT=1
and DMAEN=0. After the transfer is aborted completely, DMA
interrupt will occur.
11
DMACHEN
DMA channel enable monitor bit.
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MT2523 Series Reference Manual
Bit(s)
Name
Description
10:9
BURST_MODE
2'b00: Burst Mode 0: Bursts of unspecified length
2'b01: Burst Mode 1: INCR4 or unspecified length
2'b10: Burst Mode 2: INCR8, INCR4 or unspecified length
2'b11: Burst Mode 3: INCR16, INCR8, INCR4 or unspecified length
8
BUSERR
Bus error
7:4
ENDPNT
Endpoint which DMA will transfer with.
3
INTEN
Enables interrupt
2
DMAMODE
DMA mode
1
DMADIR
Direction
0: DMA write (Rx endpoint)
1: DMA read (Tx endpoint)
DMAEN
Enables DMA
The bit will be cleared when the DMA transfer is completed. Programmers
should not disable DMA_en before the transfer is completed. If programmers
disable dma_en during the transfer, DMA will not stop immediately until the
last bus transfer is completed.
0
A0900218
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
DMA_ADDR
_1
30
29
28
DMA Channel 1 Address Register
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
DMA_ADDR_1[31:16]
RW
0
0
0
0
0
0
0
0
0
0
DMA_ADDR_1[15:0]
RW
0
0
0
0
0
0
0
0
0
21
0
00000000
20
19
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
Bit(s)
Name
Description
31:0
DMA_ADDR_1
32-bit DMA start address
Updated (increased) by USB2.0 controller automatically when multiple packet
DMA (DMA Mode = 1) is used
A090021C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
DMA_COUN
T_1
DMA Channel 1 Byte Count Register
31
30
29
28
27
26
25
24
15
14
13
12
11
10
9
8
0
0
0
0
0
0
23
0
7
22
0
6
DMA_COUNT_1[15:0]
RW
0
0
0
0
00000000
21
20
19
18
5
4
3
2
0
0
0
0
DMA_COUNT_1[23:16]
RW
0
0
0
0
17
0
16
0
1
0
0
0
Bit(s)
Name
Description
23:0
DMA_COUNT_1
24-bit DMA transfer count with byte unit
Updated (decreased) by USB2.0 controller automatically when each packet is
transferred.
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MT2523 Series Reference Manual
A0900220
Bit
Name
Type
Reset
Bit
DMA_CONFI
G
DMA Configuration Register
00000004
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
AHB_HP
ROT_2_E
N
DMA_ACT
IVE_EN
Name
Type
Reset
0
Bit(s)
RW
0
0
RW
0
16
0
DMAQ_CHAN_S
EL
AH
BW
AIT
_SE
L
RW
0
RW
0
0
0
BO
UN
DA
RY
_1K
_C
RO
SS_
EN
RW
0
Name
Description
DMA_ACTIVE_EN
The two bits control usb_active.
2'b00: usb_active depends on all DMAEN of DMA channel control register.
2'b01: usb_active ties to 1.
2'b10: usb_active ties to 0.
2'b11: usb_active depends on ep_active, dma_active and all DMAEN of DMA
channel control register (OR logic).
9:8
AHB_HPROT_2_EN
The two bits control the AHB master interface HPROT2 function
operating in non-bufferable/bufferable/last transfer non-bufferable
mode.
2'b00: All write transfers of a burst will be accessed by bufferable mode except
for the last transfer of a burst.
2'b01: AHB master HPROT2 is always accessed by non-bufferable mode.
2'b10: AHB master HPROT2 is always accessed by bufferable mode.
2'b11: Reserved
6:4
DMAQ_CHAN_SEL
Selects DMA channel used by USB_DMAQ if it is available
It will not affect if USB_DMAQ is not available.
1
AHBWAIT_SEL
Selects AHBWAIT behavior
Set to 1 to return to old DMA master AHB wait condition.
This bit is used to test DMA FIFO overflow bug.
0
BOUNDARY_1K_CR
OSS_EN
Enables 1k boundary page crossing
Set to 1 to force burst transfer regardless of 1k boundary crossing.
Note: This will violate AHB 1k boundary specification but gain some bus
performance.
11:10
A0900224
Bit
15
DMA_CNTL_
2
14
13
12
DMA Channel 2 Control Register
11
Name
DM
AA
BO
RT
Type
A0
RU
Reset
0
0
10
9
8
7
6
5
DM
AC
HE
N
BURST_M
ODE
BU
SE
RR
ENDPNT
RW
RU
RW
0
0
0
0
0
0
4
0
0000
3
1
0
INT
EN
DM
AM
OD
E
2
DM
ADI
R
DM
AE
N
RW
RW
RW
0
0
0
Oth
er
0
Bit(s)
Name
Description
13
DMAABORT
If SW needs to abort the current DMA transfer, set DMAABORT=1
and DMAEN=0. After the transfer is aborted completely, DMA
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MT2523 Series Reference Manual
Bit(s)
Name
Description
interrupt will occur.
DMACHEN
DMA channel enable monitor bit
10:9
BURST_MODE
2'b00: Burst Mode 0: Bursts of unspecified length
2'b01: Burst Mode 1: INCR4 or unspecified length
2'b10: Burst Mode 2: INCR8, INCR4 or unspecified length
2'b11: Burst Mode 3: INCR16, INCR8, INCR4 or unspecified length
8
BUSERR
Bus error
7:4
ENDPNT
Endpoint which DMA will transfer with
3
INTEN
Enables interrupt
2
DMAMODE
DMA mode
1
DMADIR
Direction
0: DMA write (Rx endpoint)
1: DMA read (Tx endpoint)
DMAEN
Enables DMA
The bit will be cleared when the DMA transfer is completed. Programmers
should not disable DMA_en before the transfer is completed. If programmers
disable dma_en during the transfer, DMA will not stop immediately until the
last bus transfer is completed.
11
0
A0900228
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
DMA_ADDR
_2
30
29
28
DMA Channel 2 Address Register
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
DMA_ADDR_2[31:16]
RW
0
0
0
0
0
0
0
0
0
0
DMA_ADDR_2[15:0]
RW
0
0
0
0
0
0
0
0
0
21
0
00000000
20
19
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
Bit(s)
Name
Description
31:0
DMA_ADDR_2
32-bit DMA start address
Updated (increased) by USB2.0 controller automatically when multiple packet
DMA (DMA Mode = 1) is used
A090022C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
DMA_COUN
T_2
DMA Channel 2 Byte Count Register
31
30
29
28
27
26
25
24
15
14
13
12
11
10
9
8
0
0
0
0
0
0
23
0
7
22
0
6
DMA_COUNT_2[15:0]
RW
0
0
0
0
00000000
21
20
19
18
5
4
3
2
0
0
0
0
DMA_COUNT_2[23:16]
RW
0
0
0
0
17
0
16
0
1
0
0
0
Bit(s)
Name
Description
23:0
DMA_COUNT_2
24-bit DMA transfer count with byte unit
Updated (decreased) by USB2.0 controller automatically when each packet is
transferred.
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MT2523 Series Reference Manual
A0900234
Bit
15
DMA_CNTL_
3
14
13
12
DMA Channel 3 Control Register
11
Name
DM
AA
BO
RT
Type
A0
RU
Reset
0
0
10
9
8
7
6
5
DM
AC
HE
N
BURST_M
ODE
BU
SE
RR
ENDPNT
RW
RU
RW
0
0
0
0
0
0
4
0
0000
3
1
0
INT
EN
DM
AM
OD
E
2
DM
ADI
R
DM
AE
N
RW
RW
RW
0
0
0
Oth
er
0
Bit(s)
Name
Description
13
DMAABORT
If SW needs to abort the current DMA transfer, set DMAABORT=1
and DMAEN=0. After the transfer is aborted completely, DMA
interrupt will occur.
11
DMACHEN
DMA channel enable monitor bit
10:9
BURST_MODE
2'b00: Burst Mode 0: Bursts of unspecified length
2'b01: Burst Mode 1: INCR4 or unspecified length
2'b10: Burst Mode 2: INCR8, INCR4 or unspecified length
2'b11: Burst Mode 3: INCR16, INCR8, INCR4 or unspecified length
8
BUSERR
Bus error
7:4
ENDPNT
Endpoint which DMA will transfer with
3
INTEN
Enables interrupt
2
DMAMODE
DMA mode
1
DMADIR
Direction
0: DMA write (Rx endpoint)
1: DMA read (Tx endpoint)
DMAEN
Enables DMA
The bit will be cleared when the DMA transfer is completed. Programmers
should not disable DMA_en before the trnsfer is completed. If programmers
disable dma_en during the transfer, DMA will not stop immediately until the
last bus transfer is completed.
0
A0900238
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
DMA_ADDR
_3
30
29
28
DMA Channel 3 Address Register
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
DMA_ADDR_3[31:16]
RW
0
0
0
0
0
0
0
0
0
0
DMA_ADDR_3[15:0]
RW
0
0
0
0
0
0
0
0
0
21
0
00000000
20
19
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
Bit(s)
Name
Description
31:0
DMA_ADDR_3
32-bit DMA start address
Updated (increased) by USB2.0 controller automatically when multiple packet
DMA (DMA Mode = 1) is used
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MT2523 Series Reference Manual
A090023C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
DMA_COUN
T_3
DMA Channel 3 Byte Count Register
31
30
29
28
27
26
25
24
15
14
13
12
11
10
9
8
0
0
0
0
0
0
23
0
7
22
0
6
DMA_COUNT_3[15:0]
RW
0
0
0
0
00000000
21
20
19
18
5
4
3
2
0
0
0
0
DMA_COUNT_3[23:16]
RW
0
0
0
0
17
0
16
0
1
0
0
0
Bit(s)
Name
Description
23:0
DMA_COUNT_3
24-bit DMA transfer count with byte unit
Updated (decreased) by USB2.0 controller automatically when each packet is
transferred.
A0900304
Bit
Name
Type
Reset
EP1RXPKTC
OUNT
EP1 RxPktCount Register
15
14
13
12
11
10
0
0
0
0
0
0
Bit(s)
15:0
7
6
5
4
3
2
1
0
0
0
0
0
0
0
Description
EP1RXPKTCOUNT
Sets up the number of packets of Rx Endpoint n size MaxP that are to
be transferred in a block transfer
Only used in host mode when AutoReq is set. It has no effect in peripheral mode
or when AutoReq is not set.
RqPktCount (host mode only) For each Rx Endpoint 1 - 15, the USB2.0
controller provides a 16-bit RqPktCount register. This read/write register is used
in host mode to specify the number of packets that are to be transferred in a
block transfer of one or more bulk packets of length MaxP to Rx Endpoint n. The
core uses the value recorded in this register to determine the number of requests
to issue where the AutoReq option (included in the RxCSR register) has been set.
Note: Multiple packets combined into a single bulk packet within the FIFO count
as one packet.
EP2RXPKTC
OUNT
Bit
Name
Type
Reset
15
14
13
12
11
10
0
0
0
0
0
0
15:0
8
EP1RXPKTCOUNT
RW
0
0
0
0
Name
A090030
8
Bit(s)
9
0000
EP2 RxPktCount Register
9
8
7
6
EP2RXPKTCOUNT
RW
0
0
0
0
0000
5
4
3
2
1
0
0
0
0
0
0
0
Name
Description
EP2RXPKTCOUNT
Sets up the number of packets of Rx Endpoint n size MaxP that are to
be transferred in a block transfer
Only used in host mode when AutoReq is set. It has no effect in peripheral mode
or when AutoReq is not set.
RqPktCount (host mode only) For each Rx Endpoint 1 - 15, the USB2.0
controller provides a 16-bit RqPktCount register. This read/write register is used
in host mode to specify the number of packets that are to be transferred in a
block transfer of one or more bulk packets of length MaxP to Rx Endpoint n. The
core uses the value recorded in this register to determine the number of requests
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s)
Name
Description
to issue where the AutoReq option (included in the RxCSR register) has been set.
Note: Multiple packets combined into a single bulk packet within the FIFO count
as one packet.
A090060
4
Bit
15
Test Mode 1 Register
TM1
14
13
12
11
10
9
8
7
6
5
0000
4
3
2
1
Name
Type
Reset
Bit(s)
Name
Description
0
TM1
USB IP internal TM1.
A090060
8
HWVER_DA
TE
Bit
Name
Type
Reset
Bit
Name
Type
Reset
30
31
29
28
HW Version Control Register
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
HWVER_DATE[31:16]
DC
0
0
0
0
0
0
0
1
0
0
HWVER_DATE[15:0]
DC
1
0
0
0
0
0
1
0
0
21
0
20121214
20
19
18
17
0
1
4
1
0
3
2
1
0
0
1
0
1
0
0
Name
Description
31:0
HWVER_DATE
Hardware version control register date format
32'hYYYYMMDD
Bit
31
SRAMA
30
29
SRAM Address Register
28
27
26
25
24
23
22
21
15
14
13
12
11
10
9
0
0
0
0
0
0
0
8
7
SRAMA
RW
0
0
0
00000000
20
19
18
Name
Type
Reset
Bit
Name
Type
Reset
16
5
Bit(s)
A0900684
0
TM
1
RW
0
6
5
4
3
2
0
0
0
0
0
17
EP
0_S
tart
Ad
_T
M6
_en
RW
0
1
0
16
SR
AM
DB
G
RW
0
0
0
Bit(s)
Name
Description
17
EP0_StartAd_TM6_
en
Software can enable this bit to change the EP0 FIFO start address for test mode
6 FIFO loopback test by DMA/PIO.
16
SRAMDBG
SRAM_DEBUG_MODE
Software can read the data in SRAM of USB core when this bit is enabled. The
related registers are SRAMA, SRAMD. After setting this bit to 1, software can set
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MT2523 Series Reference Manual
Bit(s)
Name
Description
up SRAMA (SRAM address) then read the data in register SRAMD (SRAM data).
This is for debugging mode only and should be disabled in normal operation.
1'b0: Software set this bit 0 to disable SRAM_DEBUG_MODE.
1'b1: Software set this bit 1 to enable SRAM_DEBUG_MODE.
15:0
SRAMA
A090068
8
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
SRAM Data Register
SRAMD
30
0
29
0
28
0
27
0
26
0
15
14
13
12
11
10
0
0
0
0
0
0
Bit(s)
31:0
A090069
0
Bit
Name
Type
Reset
Bit
SRAM_ADDRESS
The register is used for RISC to read data from USB SRAM. The unit is 4 bytes.
For example, to check 0x400 byte address, set this register to 0x100. This
register is only available when the register bit SRAM_DEBUG_MODE of register
SRAMDBG is set to 1. When SRAM ADDRESS is set, SRAM DATA will display
the data in the address SRAM ADDRESS in SRAM. It is for debugging mode
only.
25
24
23
22
9
8
7
6
SRAMDATA[31:16]
RU
0
0
0
0
SRAMDATA[15:0]
RU
0
0
0
0
00000000
21
0
20
19
18
17
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
Description
SRAMDATA
SRAM_DATA
The register is used for RISC to read data from USB SRAM. This register is only
available when the register bit SRAM_DEBUG_MODE of register SRAMDBG is
set to 1. When SRAM ADDRESS is set, SRAM DATA will display the data in the
address SRAM ADDRESS in SRAM. It is for debugging mode only.
RISC Size Register
RISC_SIZE
00000002
31
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Type
Reset
1:0
0
Name
Name
Bit(s)
16
Name
Description
RISC_SIZE
Configures RISC wrapper access size
2'b00: 8-bit byte access
2'b01: 16-bit half word access
2'b10: 32-bit word access
2'b11: Reserved
© 2015 - 2018 Airoha Technology Corp.
17
16
1
0
RISC_SIZ
E
RW
1
0
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MT2523 Series Reference Manual
A0900700
Bit
31
RESREG
30
29
Reserved Register
28
27
Name
Type
Reset
Bit
26
24
23
FFFF0000
22
21
20
RESERVEDH
1
15
1
14
1
13
1
12
1
11
1
10
Name
Type
Reset
25
RW
1
9
1
8
1
7
1
1
1
6
5
4
0
0
0
19
MA
C_
CG
_DI
S
RW
1
3
18
US
B_
CG
_DI
S
RW
1
2
17
MC
U_
CG
_DI
S
RW
1
0
HS
TP
WR
DW
N_
OP
T
RW
0
1
RESERVEDL
0
0
0
0
0
0
0
RW
0
0
0
0
16
DM
A_
CG
_DI
S
RW
1
Bit(s)
Name
Description
19
MAC_CG_DIS
Disables USB MAC clock gate to enhance dynamic power
0
18
USB_CG_DIS
Disables USB clock gate
17
DMA_CG_DIS
Disables DMA clock gate
16
MCU_CG_DIS
Disables MCU clock gate
HSTPWRDWN_OPT
Host mode device connection detection option
0: Disable
1: Enable the detection of device connection when MAC clock is off and drive
powerdwn wakeup signal to wake up the system
0
A0900730
Bit
14
13
12
OTG20 Related Control Register L
11
10
9
8
00
7
6
5
4
3
Name
DIS
_H
SU
S
EN
_A
_H
FS_
WH
NP
DIS
_B
_W
TDI
S
EN
_H
HS
_S
US
P_
DIS
DIS
_C
HA
RG
E_
VB
US
Type
Reset
RW
0
RW
0
RW
0
RW
0
RW
0
Bit(s)
15
OTG20_CSR
L
2
EN
_H
SU
S_
RE
SU
ME
_IN
T
RW
0
1
0
EN
_H
SU
S_
RE
SU
ME
OT
G2
0_
EN
RW
0
RW
0
Name
Description
DIS_HSUS
Disables host mode entering C_OPM_HSUS state before entering
suspend
Suggested: 1'b1
0: Host mode enters C_OPM_HSUS state before entering suspend.
1: Disable host mode entering C_OPM_HSUS state before entering suspend.
6
EN_A_HFS_WHNP
If this bit is enabled, FS idle of A device will transfer to HFS_HSUS
state first.
Suggested: 1'b1 in all modes (device/host/OTG)
0: FS idle of A device will not transfer to HFS_HSUS state first.
1: FS idle of A device will transfer to HFS_HSUS state first.
5
DIS_B_WTDIS
Disables B device entering C_OPM_B_WTDIS states before switching
to host mode
Suggested: 1'b1
7
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Bit(s)
Name
Description
0: B device enters C_OPM_B_WTDIS states before switching to host mode.
1: B device does not enter C_OPM_B_WTDIS states before switching to host
mode.
EN_HHS_SUSP_DI
S
Enables host-hs-suspend entering OPM_FS_WTCON state first while
receiving disconnect signal
Suggested: 1'b1 in all modes (device/host/OTG)
0: The host mode enters fs_normal mode directly when the device receives the
disconnect signal as suspend state in all states.
1: The host mode enters OPM_FS_WTCON mode first when the device receives
the disconnect signal as suspend state in all states.
DIS_CHARGE_VBU
S
Disables B device charging VBUS function for OTG2.0 feature
0: B device charges VBUS when B device initiates the SRP protocol. This mode
makes compatible the OTG1.3 related SRP flow.
1: B device does not charge VBUS when B device initiates the SRP protocol. This
mode is for satisfying the OTG2.0 protocol.
EN_HSUS_RESUME
_INT
Enables hsus mode of host initializing resuming interrupt while
receiving resume K as waiting for HNP
Suggested: 1'b1 for OTG2.0 mode
0: Suspend mode of host does not initialize resuming interrupt as receiving
resume K while host is waiting for HNP protocol in OTG20 mode.
1: Suspend mode of host initializes resuming interrupt as receiving resume K
while host is waiting for HNP protocol in OTG20 mode.
1
EN_HSUS_RESUME
Enables hnpsus-mode of host entering host-normal mode as
receiving resume K while waiting for HNP
Suggested: 1'b0 when USB works in OTG20 mode
0: hnpsus-mode of host stays in hnpsus-mode as receiving resume K while
waiting for HNP.
1: hnpsus-mode of host enters host-normal mode as receiving resume K while
waiting for HNP.
0
OTG20_EN
Enables OTG 2.0 feature
0: Disable OTG2.0 feature; default OTG1.3 mode.
1: Enable USB OTG20 feature
4
3
2
A0900731
Bit
15
OTG20_CSR
H
14
13
12
OTG20 Related Control Register H
11
10
9
8
7
6
5
4
00
3
2
1
Name
DIS
_A
UT
OR
ST
Type
Reset
RW
0
Bit(s)
0
EN
_C
ON
_D
EB
_S
HO
RT
RW
0
Name
Description
1
DIS_AUTORST
Informs whether HW sends bus reset automatically when B-device
changes to host with HNP
0: HW sends bus reset automatically when B-device changes to host with HNP.
1: HW does not send bus reset when B-device changes to host mode. SW should
set up the reset bit for sending bus reset. The bit is added for OTG20 compliance
test.
0
EN_CON_DEB_SHO
RT
Enable this bit to decrease A device connection denounce waiting
timing.
Suggested: 1'b1
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Bit(s)
Name
Description
0: A device connection without denounce waiting timing
1: Decrease A device connection denounce waiting timing
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12. General Purpose Timer
12.1.
Introduction
The GPT includes five 32-bit timers and one 64-bit timer. Each timer has four operation modes, which are ONESHOT, REPEAT, freerun with interrupt (FREERUN_I) and FREERUN, and can operate on one of the two clock
sources, RTC clock (32.768kHz) and system clock (13MHz).
GPT is an always on IP. When the system is in sleep or deep sleep mode, it still keeps the previous configuration
and keeps working. However, there is no 13MHz clock source in deep sleep mode; users need to switch clock
source to 32kHz, which sets GPT*_CLK[4] to 1’b1.
12.1.1.
Features
The four operation modes for GPT are ONE-SHOT, REPEAT, FREERUN_I, and FREERUN. See Table 12-1 for the
functions of each mode.
Table 12-1. Operation mode of GPT
Auto
Stop
Interrupt
Increases when
EN=1 and …
When COUNTn =
COMPAREn
Example: Compare is set to 2
ONE-SHOT
Yes
Yes
Stops when
COUNTn =
COMPAREn
EN is reset to 0.
0,1,2,2,2,2,2,2,2,2,2,2,…
REPEAT
No
Yes
Count is reset to 0.
0,1,2,0,1,2,0,1,2,0,1,2…
FREERUN_I
No
Yes
Reset to 0 when
overflow
0,1,2,3,4,5,6,7,8,9,10,…
FREERUN
No
No
Reset to 0 when
overflow
0,1,2,3,4,5,6,7,8,9,10,…
Mode
*Bold means interrupt
Each timer can be programmed to select the clock source, RTC clock (32.76kHz) or system clock (13MHz). After the
clock source is determined, the division ratio of the selected clock can be programmed. The division ratio can be
fine-granulated as 1, 2, 3, 4 to 13 and coarse-granulated as 16, 32 and 64.
Table 12-2. Timer feature
Timer
Resolution
Interrupt
Prescalor
Mode
Clock
GPT1– GPT5
32-bit
Yes
1-13, 16, 32, 64
ONE-SHOT/ REPEAT /
FREERUN_I/FREERUN
32KHz/ 13MHz
GPT6
64-bit
Yes
1-13, 16, 32, 64
ONE-SHOT/ REPEAT /
FREERUN_I/FREERUN
32KHz/ 13MHz
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12.1.2.
Block Diagram
32bit
64 bit
APXGPT
32kHz
13MHz
GPT1
GPT2
Sleep
Control
GPT3
GPT4
IRQ
MCU
GPT5
GPT6
Figure 12-1. Block diagram of GPT
12.1.3.
Programming Guide
To program and use GPT, note that:
•
The counter value can be read any time even when the clock source is RTC clock.
•
The compare value can be programmed any time.
Sequence flow:
•
Turn off GPT clock.
•
Set up GPT clock source and frequency divider.
•
Turn on GPT clock.
•
Enable/disable IRQ and IRQ mask.
•
Set up compare value.
•
Set up GPT mode.
•
Enable GPT.
For the GPT6 64-bit timer, the read operation of the 64-bit timer value will be separated into two APB reads since
an APB read is of 32-bit width. To perform the read of 64-bit timer value, the lower word should be read first then
the higher word. The read operation of lower word freezes the “read value” of the higher word but does not freeze
the timer counting. This ensures that the separated read operation acquires the correct timer value. If both two
tasks, e.g. task A and task B, perform the read of 64-bit timer value, task A first reads the lower word of the value,
and task B reads the lower word of the value. Either of the tasks reads the higher word of timer value, and the
obtained value will be the time when task B reads the lower word of timer value. To guarantee task A reads the
correct 64-bit timer value, some software procedures are required, e.g. the semaphore.
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12.2.
Register Definition
Module name: GPT Base address: (+A2140000h)
Address
Name
Width
Register Function
GPT IRQ Status
Shows the interrupt status of each GPT
A2140000
GPT_IRQSTA
32
A2140004
GPT_IRQMASK
0
32
A2140008
GPT_IRQMASK1
32
A2140010
GPT1_CON
32
GPT1 Control
The General control for GPT1
A2140014
GPT1_CLK
32
GPT1 Clock Setting
Controls the clock source and division ratio of GPT clock
A2140018
GPT1_IRQ_EN
32
GPT IRQ Enabling
Controls the enabling/disabling of GPT interrupt
A214001C
GPT1_IRQ_STA
32
GPT IRQ Status
Shows the interrupt status of GPT1
A2140020
GPT1_IRQ_ACK
32
A2140024
GPT1_COUNT
32
A2140028
GPT1_COMPAR
E
32
GPT1 Compare Value
Compare value for GPT1
A2140040
GPT2_CON
32
GPT2 Control
General control for GPT2
A2140044
GPT2_CLK
32
GPT2 Clock Setting
Controls the clock source and division ratio of GPT clock
A2140048
GPT2_IRQ_EN
32
GPT IRQ Enabling
Controls the enabling/disabling of GPT interrupt
A214004C
GPT2_IRQ_STA
32
A2140050
GPT2_IRQ_ACK
32
A2140054
GPT2_COUNT
32
GPT2 Counter
Timer count of GPT2
A2140058
GPT2_COMPAR
E
32
GPT2 Compare Value
Compare value for GPT2
A2140070
GPT3_CON
32
GPT3 Control
General control for GPT3
A2140074
GPT3_CLK
32
GPT3 Clock Setting
Controls the clock source and division ratio of GPT clock
A2140078
GPT3_IRQ_EN
32
A214007C
GPT3_IRQ_STA
32
A2140080
GPT3_IRQ_ACK
32
GPT IRQ Acknowledgement
Acknowledges the GPT interrupt
A2140084
GPT3_COUNT
32
GPT3 Counter
Timer count of GPT3
A2140088
GPT3_COMPAR
E
32
GPT3 Compare Value
ARM IRQMASK Register
Masks specific GPT's interrupt to ARM
CM4 IRQMASK Register
Masks specific GPT's interrupt to CM4
GPT IRQ Acknowledgement
Acknowledges the GPT interrupt
GPT1 Counter
Timer count of GPT1
GPT IRQ Status
Shows the interrupt status of GPT1
GPT IRQ Acknowledgement
Acknowledges the GPT interrupt
GPT IRQ Enabling
Controls the enabling/disabling of GPT interrupt
GPT IRQ Status
Shows the interrupt status of GPT1
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Compare value for GPT3
GPT4 Control
General control for GPT4
A21400A0
GPT4_CON
32
A21400A4
GPT4_CLK
32
A21400A8
GPT4_IRQ_EN
32
A21400AC
GPT4_IRQ_STA
32
GPT IRQ Status
Shows the interrupt status of GPT1
A21400B0
GPT4_IRQ_ACK
32
GPT IRQ Acknowledgement
Acknowledges the GPT interrupt
A21400B4
GPT4_COUNT
32
GPT4 Counter
Timer count of GPT4
A21400B8
GPT4_COMPAR
E
32
GPT4 Compare Value
Compare value for GPT4
A21400D0
GPT5_CON
32
A21400D4
GPT5_CLK
32
A21400D8
GPT5_IRQ_EN
32
GPT IRQ Enabling
Controls the enabling/disabling of GPT interrupt
A21400DC
GPT5_IRQ_STA
32
GPT IRQ Status
Shows the interrupt status of GPT1
A21400E0
GPT5_IRQ_ACK
32
GPT IRQ Acknowledgement
Acknowledges the GPT interrupt
A21400E4
GPT5_COUNT
32
GPT5 Counter
Timer count of GPT5
A21400E8
GPT5_COMPAR
E
32
A2140100
GPT6_CON
32
A2140104
GPT6_CLK
32
GPT6 Clock Setting
Controls the clock source and division ratio of GPT clock
A2140108
GPT6_IRQ_EN
32
GPT IRQ Enabling
Controls the enabling/disabling of GPT interrupt
A214010C
GPT6_IRQ_STA
32
GPT IRQ Status
Shows the interrupt status of GPT1
A2140110
GPT6_IRQ_ACK
32
GPT IRQ Acknowledgement
Acknowledges the GPT interrupt
A2140114
GPT6_COUNTL
32
A2140118
GPT6_COMPAR
EL
32
A214011C
GPT6_COUNTH
32
GPT6 Counter L
Higher word timer count for GPT6
A2140120
GPT6_COMPAR
EH
32
GPT6 Compare Value H
Higher word compare value for GPT6
A2140000
GPT_IRQSTA
Bit
Name
Type
Reset
31
30
29
28
GPT4 Clock Setting
Controls the clock source and division ratio of GPT clock
GPT IRQ Enabling
Controls the enabling/disabling of GPT interrupt
GPT5 Control
General control for GPT5
GPT5 Clock Setting
Controls the clock source and division ratio of GPT clock
GPT5 Compare Value
Compare value for GPT5
GPT6 Control
General control for GPT6
GPT6 Counter L
Lower word timer count for GPT6
GPT6 Compare Value L
Lower word compare value for GPT6
GPT IRQ Status
27
26
25
00000000
24
23
22
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21
20
19
18
17
16
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Bit
Name
Type
Reset
15
Overview
14
13
12
A2140004
0
0
3
2
IRQSTA
RO
0
0
1
0
0
0
0000003F
28
27
26
25
24
23
22
21
20
15
14
13
12
11
10
9
8
7
6
5
4
1
1
19
18
17
16
3
2
1
0
1
1
IRQ_MSK0
RW
1
1
Masks specific GPT's interrupt to ARM
Description
By default, ARM will not receive GPT3's interrupt.
IRQ_MSK0
GPT_IRQMAS
CM4 IRQMASK Register
K1
0000003F
31
30
29
28
27
26
25
24
23
22
21
20
15
14
13
12
11
10
9
8
7
6
5
4
1
1
19
18
17
16
3
2
1
0
1
1
IRQ_MSK1
RW
1
1
Masks specific GPT's interrupt to CM4
Description
By default, CM4 will only receive GPT3's interrupt.
IRQ_MSK1
A2140010
Type
Reset
4
GPT_IRQMAS
ARM IRQMASK Register
K0
Bit(s) Name
Name
5
29
Overview
Bit
Name
Type
Reset
Bit
6
30
A2140008
5:0
7
Interrupt status of each GPT
0: No associated interrupt is generated
1: Associated interrupt is pending and waiting for service.
Bit(s) Name
Bit
Name
Type
Reset
Bit
Name
Type
Reset
8
31
Overview
5:0
9
Description
IRQSTA
Bit
Name
Type
Reset
Bit
Name
Type
Reset
10
Shows the interrupt status of each GPT
Bit(s) Name
5:0
11
GPT1_CON
GPT1 Control
00000000
31
30
29
28
27
26
25
24
23
15
14
13
12
11
10
9
8
7
22
21
20
19
18
17
16
6
5
4
3
2
1
0
SW_C
G1
RW
0
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MODE1
0
RW
CLR1 EN1
WO
0
0
RW
0
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Overview
The General control for GPT1
Bit(s) Name
Description
6
SW_CG1
Stop GPT1's clock if this bit is enabled.
0: Disable
1: Enable
5:4
MODE1
Operation mode of GPT1
00: ONE-SHOT mode
01: REPEAT mode
10: FREERUN_I mode
11: FREERUN mode
1
CLR1
Clears the counter of GPT1 to 0
0: No effect
1: Clear
It takes 2~3 T GPT1_CK for CLR1 to clear the counter of GPT1.
0
EN1
Enables GPT1
0: Disable
1: Enable
It takes 2~3 T GPT1_CK for EN1 to enable/disable GPT1.
A2140014
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT1_CLK
29
28
27
26
25
24
23
22
21
15
14
13
12
11
10
9
8
7
6
5
20
19
4
3
CLK1
RW
0
0
18
17
16
2
1
0
CLKDIV1
RW
0
0
0
Controls the clock source and division ratio of GPT clock
Bit(s) Name
3:0
00000000
30
Overview
4
GPT1 Clock Setting
31
Description
CLK1
Sets up clock source of GPT1
0: System clock (13MHz)
1: RTC clock (32kHz)
CLKDIV1
Setting of GPT1 input clock frequency divider
0000: Clock source divided by 1
0001: Clock source divided by 2
0010: Clock source divided by 3
0011: Clock source divided by 4
0100: Clock source divided by 5
0101: Clock source divided by 6
0110: Clock source divided by 7
0111: Clock source divided by 8
1000: Clock source divided by 9
1001: Clock source divided by 10
1010: Clock source divided by 11
1011: Clock source divided by 12
1100: Clock source divided by 13
1101: Clock source divided by 16
1110: Clock source divided by 32
1111: Clock source divided by 64
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A2140018
Bit
Name
Type
Reset
Bit
GPT1_IRQ_EN GPT IRQ Enabling
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
Description
Enables interrupt of GPT1
0: Disable interrupt of GPT1
1: Enable interrupt of GPT1
IRQEN
A214001C
Bit
Name
Type
Reset
Bit
GPT1_IRQ_ST
GPT IRQ Status
A
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
A2140020
Interrupt status of GPT1
0: No interrupt is generated from GPT1
1: GPT1's interrupt is pending and waiting for service.
GPT1_IRQ_AC
GPT IRQ Acknowledgement
K
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
16
0
IRQA
CK
WO
0
Acknowledges the GPT interrupt
Bit(s) Name
0
0
IRQS
TA
RO
0
Description
IRQSTA
Bit
Name
Type
Reset
Bit
16
Shows the interrupt status of GPT1
Bit(s) Name
0
0
IRQE
N
RW
0
Controls the enabling/disabling of GPT interrupt
Bit(s) Name
0
16
IRQACK
Description
Interrupt acknowledgement for GPT1
0: No effect
1: Associated interrupt request is acknowledged and should be relinquished.
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A2140024
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT1_COUNT GPT1 Counter
31
30
29
28
23
22
9
8
7
6
13
12
11
10
0
0
0
0
0
0
0
COUNTER1[15:0]
RO
0
0
0
0
0
0
0
0
A2140028
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Description
Timer counter of GPT1
GPT1_COMPA
GPT1 Compare Value
RE
31
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
COMPARE1[31:16]
RW
0
0
0
0
0
0
0
0
0
0
COMPARE1[15:0]
RW
0
0
0
0
0
Overview
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Compare value for GPT1
Bit(s) Name
Description
Compare value of GPT1
Write new compare value will also clear the counter of GPT1.
COMPARE1
A2140040
GPT2_CON
GPT2 Control
00000000
31
30
29
28
27
26
25
24
23
15
14
13
12
11
10
9
8
7
Name
Type
Reset
Overview
21
Timer count of GPT1
COUNTER1
Bit
Name
Type
Reset
Bit
24
14
Bit(s) Name
31:0
00000000
25
15
0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
26
COUNTER1[31:16]
RO
0
0
0
0
Overview
31:0
27
22
21
20
19
18
17
16
6
5
4
3
2
1
0
SW_C
G2
RW
0
MODE2
0
RW
CLR2 EN2
WO
0
0
RW
0
General control for GPT2
Bit(s) Name
Description
6
SW_CG2
Stop GPT2's clock if this bit is enabled.
0: Disable
1: Enable
5:4
MODE2
Operation mode of GPT2
00: ONE-SHOT mode
01: REPEAT mode
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MT2523 Series Reference Manual
Bit(s) Name
Description
10: FREERUN_I mode
11: FREERUN mode
1
CLR2
Clears the counter of GPT2 to 0
0: No effect
1: Clear
It takes 2~3 T GPT2_CK for CLR2 to clear the counter of GPT2.
0
EN2
Enables GPT2
0: Disable
1: Enable
It takes 2~3 T GPT2_CK for EN2 to enable/disable GPT2.
A2140044
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT2_CLK
GPT2 Clock Setting
31
30
29
28
27
26
25
24
23
22
21
15
14
13
12
11
10
9
8
7
6
5
Overview
3:0
19
4
3
CLK2
RW
0
18
17
16
2
1
0
0
CLKDIV2
RW
0
0
0
Description
CLK2
Sets up clock source of GPT2
0: System clock (13MHz)
1: RTC clock (32kHz)
CLKDIV2
Setting of GPT2 input clock frequency divider
0000: Clock source divided by 1
0001: Clock source divided by 2
0010: Clock source divided by 3
0011: Clock source divided by 4
0100: Clock source divided by 5
0101: Clock source divided by 6
0110: Clock source divided by 7
0111: Clock source divided by 8
1000: Clock source divided by 9
1001: Clock source divided by 10
1010: Clock source divided by 11
1011: Clock source divided by 12
1100: Clock source divided by 13
1101: Clock source divided by 16
1110: Clock source divided by 32
1111: Clock source divided by 64
A2140048
Bit
Name
Type
Reset
Bit
20
Controls the clock source and division ratio of GPT clock
Bit(s) Name
4
00000000
GPT2_IRQ_EN GPT IRQ Enabling
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
© 2015 - 2018 Airoha Technology Corp.
16
0
IRQE
N
RW
0
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MT2523 Series Reference Manual
Overview
Controls the enabling/disabling of GPT interrupt
Bit(s) Name
0
Description
Enables interrupt of GPT2
0: Disable interrupt of GPT2
1: Enable interrupt of GPT2
IRQEN
A214004C
Bit
Name
Type
Reset
Bit
GPT2_IRQ_ST
GPT IRQ Status
A
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
Description
Interrupt status of GPT2
0: No interrupt is generated from GPT2
1: GPT2's interrupt is pending and waiting for service.
IRQSTA
A2140050
Bit
Name
Type
Reset
Bit
GPT2_IRQ_AC
GPT IRQ Acknowledgement
K
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
0
IRQA
CK
WO
0
Description
Interrupt acknowledgement for GPT2
0: No effect
1: Associated interrupt request is acknowledged and should be relinquished.
IRQACK
A2140054
Bit
Name
Type
Reset
Bit
Name
Type
Reset
16
Acknowledges the GPT interrupt
Bit(s) Name
0
0
IRQS
TA
RO
0
Shows the interrupt status of GPT1
Bit(s) Name
0
16
31
GPT2_COUNT GPT2 Counter
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
COUNTER2[31:16]
RO
0
0
0
0
0
0
0
0
0
0
COUNTER2[15:0]
RO
0
0
0
0
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
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MT2523 Series Reference Manual
Overview
Timer count of GPT2
Bit(s) Name
31:0
Description
Timer counter of GPT2
COUNTER2
A2140058
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT2_COMPA
GPT2 Compare Value
RE
31
30
29
28
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
0
0
0
0
0
0
COMPARE2[15:0]
RW
0
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Compare value for GPT2
Bit(s) Name
Description
Compare value of GPT2
Write new compare value will also clear the counter of GPT2.
COMPARE2
A2140070
Bit
Name
Type
Reset
Bit
26
COMPARE2[31:16]
RW
0
0
0
0
Overview
31:0
27
00000000
GPT3_CON
GPT3 Control
00000000
31
30
29
28
27
26
25
24
23
15
14
13
12
11
10
9
8
7
Name
Type
Reset
Overview
22
21
20
19
18
17
16
6
5
4
3
2
1
0
SW_C
G3
RW
0
MODE3
0
RW
CLR3 EN3
WO
0
0
RW
0
General control for GPT3
Bit(s) Name
Description
6
SW_CG3
Stop GPT3's clock if this bit is enabled.
0: Disable
1: Enable
5:4
MODE3
Operation mode of GPT3
00: ONE-SHOT mode
01: REPEAT mode
10: FREERUN_I mode
11: FREERUN mode
1
CLR3
Clears the counter of GPT3 to 0
0: No effect
1: Clear
It takes 2~3 T GPT3_CK for CLR3 to clear the counter of GPT3.
0
EN3
Enables GPT3
0: Disable
1: Enable
It takes 2~3 T GPT3_CK for EN3 to enable/disable GPT3.
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MT2523 Series Reference Manual
A2140074
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT3_CLK
GPT3 Clock Setting
30
29
28
27
26
25
24
23
22
21
15
14
13
12
11
10
9
8
7
6
5
Overview
3:0
20
19
4
3
CLK3
RW
0
17
16
2
1
0
CLKDIV3
RW
0
0
Sets up clock source of GPT3
0: System clock (13MHz)
1: RTC clock (32kHz)
CLKDIV3
Setting of GPT3 input clock frequency divider
0000: Clock source divided by 1
0001: Clock source divided by 2
0010: Clock source divided by 3
0011: Clock source divided by 4
0100: Clock source divided by 5
0101: Clock source divided by 6
0110: Clock source divided by 7
0111: Clock source divided by 8
1000: Clock source divided by 9
1001: Clock source divided by 10
1010: Clock source divided by 11
1011: Clock source divided by 12
1100: Clock source divided by 13
1101: Clock source divided by 16
1110: Clock source divided by 32
1111: Clock source divided by 64
A2140078
GPT3_IRQ_EN GPT IRQ Enabling
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
16
0
IRQE
N
RW
0
Controls the enabling/disabling of GPT interrupt
Bit(s) Name
0
0
Description
CLK3
Bit
Name
Type
Reset
Bit
0
18
Controls the clock source and division ratio of GPT clock
Bit(s) Name
4
00000000
31
IRQEN
Description
Enables interrupt of GPT3
0: Disable interrupt of GPT3
1: Enable interrupt of GPT3
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MT2523 Series Reference Manual
A214007C
Bit
Name
Type
Reset
Bit
GPT3_IRQ_ST
GPT IRQ Status
A
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
Description
Interrupt status of GPT3
0: No interrupt is generated from GPT3
1: GPT3's interrupt is pending and waiting for service.
IRQSTA
A2140080
Bit
Name
Type
Reset
Bit
GPT3_IRQ_AC
GPT IRQ Acknowledgement
K
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
A2140084
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
COUNTER3[31:16]
RO
0
0
0
0
0
0
0
0
0
0
COUNTER3[15:0]
RO
0
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Timer count of GPT3
Bit(s) Name
31:0
Interrupt acknowledgement for GPT3
0: No effect
1: Associated interrupt request is acknowledged and should be relinquished.
GPT3_COUNT GPT3 Counter
31
Overview
0
IRQA
CK
WO
0
Description
IRQACK
Bit
Name
Type
Reset
Bit
Name
Type
Reset
16
Acknowledges the GPT interrupt
Bit(s) Name
0
0
IRQS
TA
RO
0
Shows the interrupt status of GPT1
Bit(s) Name
0
16
COUNTER3
Description
Timer counter of GPT3
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MT2523 Series Reference Manual
A2140088
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT3_COMPA
GPT3 Compare Value
RE
31
30
29
28
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
0
0
0
0
0
0
COMPARE3[15:0]
RW
0
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
0
Description
Compare value of GPT3
Write new compare value will also clear the counter of GPT3.
COMPARE3
A21400A0
GPT4_CON
GPT4 Control
00000000
31
30
29
28
27
26
25
24
23
15
14
13
12
11
10
9
8
7
Name
Type
Reset
Overview
22
21
20
19
18
17
16
6
5
4
3
2
1
0
SW_C
G4
RW
0
MODE4
0
RW
CLR4 EN4
WO
0
0
RW
0
General control for GPT4
Bit(s) Name
Description
6
SW_CG4
Stop GPT4's clock if this bit is enabled.
0: Disable
1: Enable
5:4
MODE4
Operation mode of GPT4
00: ONE-SHOT mode
01: REPEAT mode
10: FREERUN_I mode
11: FREERUN mode
1
CLR4
Clears the counter of GPT4 to 0
0: No effect
1: Clear
It takes 2~3 T GPT4_CK for CLR4 to clear the counter of GPT4.
0
EN4
Enables GPT4
0: Disable
1: Enable
It takes 2~3 T GPT4_CK for EN4 to enable/disable GPT4.
A21400A4
Bit
Name
Type
Reset
2
16
Compare value for GPT3
Bit(s) Name
Bit
Name
Type
Reset
Bit
26
COMPARE3[31:16]
RW
0
0
0
0
Overview
31:0
27
00000000
31
GPT4_CLK
30
29
GPT4 Clock Setting
28
27
26
25
24
00000000
23
22
© 2015 - 2018 Airoha Technology Corp.
21
20
19
18
17
16
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MT2523 Series Reference Manual
Bit
Name
Type
Reset
15
14
Overview
13
12
3:0
10
9
8
7
6
5
4
CLK4
RW
0
0
2
1
CLKDIV4
RW
0
0
Sets up clock source of GPT4
0: System clock (13MHz)
1: RTC clock (32kHz)
CLKDIV4
Setting of GPT4 input clock frequency divider
0000: Clock source divided by 1
0001: Clock source divided by 2
0010: Clock source divided by 3
0011: Clock source divided by 4
0100: Clock source divided by 5
0101: Clock source divided by 6
0110: Clock source divided by 7
0111: Clock source divided by 8
1000: Clock source divided by 9
1001: Clock source divided by 10
1010: Clock source divided by 11
1011: Clock source divided by 12
1100: Clock source divided by 13
1101: Clock source divided by 16
1110: Clock source divided by 32
1111: Clock source divided by 64
A21400A8
GPT4_IRQ_EN GPT IRQ Enabling
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Type
Reset
Overview
16
0
IRQE
N
RW
0
Controls the enabling/disabling of GPT interrupt
Bit(s) Name
Description
Enables interrupt of GPT4
0: Disable interrupt of GPT4
1: Enable interrupt of GPT4
IRQEN
A21400AC
Bit
Name
Type
Reset
Bit
0
00000000
Name
0
0
Description
CLK4
Bit
Name
Type
Reset
Bit
3
Controls the clock source and division ratio of GPT clock
Bit(s) Name
4
11
GPT4_IRQ_ST
GPT IRQ Status
A
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
© 2015 - 2018 Airoha Technology Corp.
16
0
IRQS
TA
RO
0
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MT2523 Series Reference Manual
Overview
Shows the interrupt status of GPT1
Bit(s) Name
0
Description
Interrupt status of GPT4
0: No interrupt is generated from GPT4
1: GPT4's interrupt is pending and waiting for service.
IRQSTA
A21400B0
Bit
Name
Type
Reset
Bit
GPT4_IRQ_AC
GPT IRQ Acknowledgement
K
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
Description
Interrupt acknowledgement for GPT4
0: No effect
1: Associated interrupt request is acknowledged and should be relinquished.
IRQACK
A21400B4
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT4_COUNT GPT4 Counter
31
30
29
28
25
24
23
22
9
8
7
6
14
13
12
11
10
0
0
0
0
0
0
0
COUNTER4[15:0]
RO
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Timer count of GPT4
Bit(s) Name
Description
Timer counter of GPT4
COUNTER4
A21400B8
Overview
26
15
0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
27
00000000
COUNTER4[31:16]
RO
0
0
0
0
Overview
31:0
0
IRQA
CK
WO
0
Acknowledges the GPT interrupt
Bit(s) Name
0
16
31
GPT4_COMPA
GPT4 Compare Value
RE
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
COMPARE4[31:16]
RW
0
0
0
0
0
0
0
0
0
0
COMPARE4[15:0]
RW
0
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Compare value for GPT4
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Name
31:0
Description
Compare value of GPT4
Write new compare value will also clear the counter of GPT4.
COMPARE4
A21400D0 GPT5_CON
Bit
Name
Type
Reset
Bit
GPT5 Control
00000000
31
30
29
28
27
26
25
24
23
15
14
13
12
11
10
9
8
7
Name
Type
Reset
Overview
22
6
SW_C
G5
RW
0
21
20
19
18
5
4
3
2
MODE5
0
RW
0
WO
0
0
RW
0
Description
SW_CG5
Stop GPT5's clock if this bit is enabled.
0: Disable
1: Enable
5:4
MODE5
Operation mode of GPT5
00: ONE-SHOT mode
01: REPEAT mode
10: FREERUN_I mode
11: FREERUN mode
1
CLR5
Clears the counter of GPT5 to 0
0: No effect
1: Clear
It takes 2~3 T GPT5_CK for CLR5 to clear the counter of GPT5.
0
EN5
Enables GPT5
0: Disable
1: Enable
It takes 2~3 T GPT5_CK for EN5 to enable/disable GPT5.
A21400D4
GPT5_CLK
GPT5 Clock Setting
00000000
31
30
29
28
27
26
25
24
23
22
21
15
14
13
12
11
10
9
8
7
6
5
Overview
20
19
4
3
CLK5
RW
0
0
18
17
16
2
1
0
CLKDIV5
RW
0
0
0
Controls the clock source and division ratio of GPT clock
Bit(s) Name
3:0
1
CLR5 EN5
6
4
16
General control for GPT5
Bit(s) Name
Bit
Name
Type
Reset
Bit
Name
Type
Reset
17
Description
CLK5
Sets up clock source of GPT5
0: System clock (13MHz)
1: RTC clock (32kHz)
CLKDIV5
Setting of GPT5 input clock frequency divider
0000: Clock source divided by 1
0001: Clock source divided by 2
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MT2523 Series Reference Manual
Bit(s) Name
A21400D8
Bit
Name
Type
Reset
Bit
Description
0010: Clock source divided by 3
0011: Clock source divided by 4
0100: Clock source divided by 5
0101: Clock source divided by 6
0110: Clock source divided by 7
0111: Clock source divided by 8
1000: Clock source divided by 9
1001: Clock source divided by 10
1010: Clock source divided by 11
1011: Clock source divided by 12
1100: Clock source divided by 13
1101: Clock source divided by 16
1110: Clock source divided by 32
1111: Clock source divided by 64
GPT5_IRQ_EN GPT IRQ Enabling
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
Description
Enables interrupt of GPT5
0: Disable interrupt of GPT5
1: Enable interrupt of GPT5
IRQEN
A21400DC
Bit
Name
Type
Reset
Bit
GPT5_IRQ_ST
GPT IRQ Status
A
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
16
0
IRQS
TA
RO
0
Shows the interrupt status of GPT1
Bit(s) Name
0
0
IRQE
N
RW
0
Controls the enabling/disabling of GPT interrupt
Bit(s) Name
0
16
IRQSTA
Description
Interrupt status of GPT5
0: No interrupt is generated from GPT5
1: GPT5's interrupt is pending and waiting for service.
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MT2523 Series Reference Manual
A21400E0
Bit
Name
Type
Reset
Bit
GPT5_IRQ_AC
GPT IRQ Acknowledgement
K
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
Description
Interrupt acknowledgement for GPT5
0: No effect
1: Associated interrupt request is acknowledged and should be relinquished.
IRQACK
A21400E4
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT5_COUNT GPT5 Counter
31
30
29
28
24
23
22
9
8
7
6
13
12
11
10
0
0
0
0
0
0
0
COUNTER5[15:0]
RO
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Timer count of GPT5
Description
Timer counter of GPT5
COUNTER5
A21400E8
GPT5_COMPA
GPT5 Compare Value
RE
31
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
COMPARE5[31:16]
RW
0
0
0
0
0
0
0
0
0
0
COMPARE5[15:0]
RW
0
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Compare value for GPT5
Bit(s) Name
31:0
25
14
Bit(s) Name
Overview
26
15
0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
27
00000000
COUNTER5[31:16]
RO
0
0
0
0
Overview
31:0
0
IRQA
CK
WO
0
Acknowledges the GPT interrupt
Bit(s) Name
0
16
COMPARE5
Description
Compare value of GPT5
Write new compare value will also clear the counter of GPT5.
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MT2523 Series Reference Manual
A2140100
Bit
Name
Type
Reset
Bit
GPT6_CON
GPT6 Control
00000000
31
30
29
28
27
26
25
24
23
15
14
13
12
11
10
9
8
7
Name
Type
Reset
Overview
22
21
20
19
18
17
16
6
5
4
3
2
1
0
SW_C
G6
RW
0
MODE6
0
RW
CLR6 EN6
WO
0
0
General control for GPT6
Bit(s) Name
Description
6
SW_CG6
Stop GPT6's clock if this bit is enabled.
0: Disable
1: Enable
5:4
MODE6
Operation mode of GPT6
00: ONE-SHOT mode
01: REPEAT mode
10: FREERUN_I mode
11: FREERUN mode
1
CLR6
Clears the counter of GPT6 to 0
0: No effect
1: Clear
It takes 2~3 T GPT6_CK for CLR6 to clear the counter of GPT6.
0
EN6
Enables GPT6
0: Disable
1: Enable
It takes 2~3 T GPT6_CK for EN6 to enable/disable GPT6.
A2140104
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT6_CLK
00000000
30
29
28
27
26
25
24
23
22
21
15
14
13
12
11
10
9
8
7
6
5
20
19
4
3
CLK6
RW
0
0
18
17
16
2
1
0
CLKDIV6
RW
0
0
0
Controls the clock source and division ratio of GPT clock
Bit(s) Name
3:0
GPT6 Clock Setting
31
Overview
4
RW
0
Description
CLK6
Set clock source of GPT6
0: System clock (13MHz)
1: RTC clock (32kHz)
CLKDIV6
Setting of GPT6 input clock frequency divider
0000: Clock source divided by 1
0001: Clock source divided by 2
0010: Clock source divided by 3
0011: Clock source divided by 4
0100: Clock source divided by 5
0101: Clock source divided by 6
0110: Clock source divided by 7
0111: Clock source divided by 8
1000: Clock source divided by 9
1001: Clock source divided by 10
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MT2523 Series Reference Manual
Bit(s) Name
A2140108
Bit
Name
Type
Reset
Bit
Description
1010: Clock source divided by 11
1011: Clock source divided by 12
1100: Clock source divided by 13
1101: Clock source divided by 16
1110: Clock source divided by 32
1111: Clock source divided by 64
GPT6_IRQ_EN GPT IRQ Enabling
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
Description
Enables interrupt of GPT6
0: Disable interrupt of GPT6
1: Enable interrupt of GPT6
IRQEN
A214010C
Bit
Name
Type
Reset
Bit
GPT6_IRQ_ST
GPT IRQ Status
A
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Overview
0
IRQS
TA
RO
0
Description
Interrupt status of GPT6
0: No interrupt is generated from GPT6
1: GPT6's interrupt is pending and waiting for service.
IRQSTA
A2140110
Bit
Name
Type
Reset
Bit
16
Shows the interrupt status of GPT1
Bit(s) Name
0
0
IRQE
N
RW
0
Controls the enabling/disabling of GPT interrupt
Bit(s) Name
0
16
GPT6_IRQ_AC
GPT IRQ Acknowledgement
K
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
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16
0
IRQA
CK
WO
0
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Overview
Acknowledges the GPT interrupt
Bit(s) Name
0
Description
Interrupt acknowledgement for GPT6
0: No effect
1: Associated interrupt request is acknowledged and should be relinquished.
IRQACK
A2140114
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT6_COUNT
GPT6 Counter L
L
31
30
29
28
23
22
9
8
7
6
13
12
11
10
0
0
0
0
0
0
0
COUNTER6L[15:0]
RO
0
0
0
0
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Lower word timer count for GPT6
Description
Lower word of timer count of GPT6
The read operation of GPT6_COUNTL will make GPT6_COUNTH fixed until the
next read operation of GPT6_COUNTL.
COUNTER6L
A2140118
GPT6_COMPA
GPT6 Compare Value L
REL
31
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
COMPARE6L[31:16]
RW
0
0
0
0
0
0
0
0
0
0
COMPARE6L[15:0]
RW
0
0
0
0
0
Overview
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Lower word compare value for GPT6
Bit(s) Name
Description
Lower word of compare value of GPT6
Write new compare value will also clear the counter of GPT6.
COMPARE6L
A214011C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
24
14
Bit(s) Name
31:0
25
15
0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
26
COUNTER6L[31:16]
RO
0
0
0
0
Overview
31:0
27
00000000
31
GPT6_COUNT
GPT6 Counter L
H
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
COUNTER6H[31:16]
RO
0
0
0
0
0
0
0
0
0
0
COUNTER6H[15:0]
RO
0
0
0
0
0
0
0
0
0
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21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
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Overview
Higher word timer count for GPT6
Bit(s) Name
31:0
Description
A2140120
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPT6_COMPA
GPT6 Compare Value H
REH
31
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
COMPARE6H[31:16]
RW
0
0
0
0
0
0
0
0
0
0
COMPARE6H[15:0]
RW
0
0
0
0
0
Overview
0
0
0
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Higher word compare value for GPT6
Bit(s) Name
31:0
Higher word of timer count of GPT6
COUNTER6H
COMPARE6H
Description
Higher word of compare of GPT6
Write new compare value will also clear the counter of GPT6.
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MT2523 Series Reference Manual
13. Pulse Width Modulation
13.1.
General Description
The generic pulse width modulators (PWM) are implemented to generate pulse sequences with programmable
frequency and duty cycle for LCD backlight. The duration of the PWM output signal is LOW as long as the internal
counter value is bigger than or equal to the threshold value. The waveform is shown in Figure 13-1.
Internal counter
Threshold
PWM Signal
Figure 13-1. PWM waveform
The frequency and volume of PWM output signal are determined by registers PWM_1CH_CTRL,
PWM_1CH_THRES, and PWM_1CH_COUNT. The POWERDOWN (pwm_1ch_pdn) signal is applied to power down
the PWM_1CH module. When PWM_1CH is deactivated (pwm_1ch_pdn=1), the output will be in LOW state.
The output PWM frequency is determined by:
CLK
CLOCK _ DIV × ( PWM _ 1CH _ COUNT + 1)
CLK = 13 MHz, when CLK_SLE=0
CLK = 32 KHz, when CLK_SLE=1
CLOCK_DIV = 1, when CLK_DIV = 00b
CLOCK_DIV = 2, when CLK_DIV = 01b
CLOCK_DIV = 4, when CLK_DIV = 10b
CLOCK_DIV = 8, when CLK_DIV = 11b
The output PWM duty cycle is determined by:
PWM _ 1CH _ THRES
PWM _ 1CH _ COUNT + 1
Note that PWM_1CH_THRES should be less than PWM_1CH_COUNT. If this condition is not satisfied, the output
pulse of the PWM will always behigh. Figure 7-2 is the PWM waveform with indicated register values.
13MHz
PWM_COUNT = 5
PWM_THRES = 1
PWM_CON = 0b
Figure 13-2. PWM waveform with register values
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MT2523 Series Reference Manual
13.2.
Register Definition
There are six PWM channels in this SOC. The usage of the registers below is the same except that the base address
should be changed to respective one.
PWM number
Base address
PWM0 (Always on domain)
0xA2160000
PWM1 (Always on domain)
0xA2170000
PWM2 (Power down domain)
0xA0160000
PWM3 (Power down domain)
0xA0170000
PWM4 (Power down domain)
0xA0180000
PWM5 (Power down domain)
0xA0190000
Module name: PulseWidthModulation Base address: (+A2160000h)
Address
A2160000
Name
PWM_1CH_CTRL_AD
DR
Width
16
A2160004
PWM_1CH_COUNT_A
DDR
16
PWM max counter value register
A2160008
PWM_1CH_THRESH_
ADDR
16
PWM threshold value register
A2160000
Bit
Name
15
PWM_1CH
_CTRL_ADDR
14
13
12
Register Function
PWM control register
PWM control register
11
10
9
8
0000
7
6
5
4
3
Type
Reset
Bit(s) Mnemonic Name
Description
2
PWM_1CH CLK_SEL
_CLK_SEL
1:0
PWM_1CH CLK_DIV
_CLK_DIV
A2160004
Bit
Name
Type
Reset
2
1
0
PWM
_1CH PWM_1CH
_CLK _CLK_DIV
_SEL
RW
RW
0
0
0
Selects source clock frequency of PWM
0:CLK=13MHz (unable to work in sleep mode)
1: CLK=32kHz
Selects clock prescaler scale of PWM
2'b00: f=fclk
2'b01: f=fclk/2
2'b10: f=fclk/4
2'b11: f=fclk/8
PWM_1CH_COU PWM max counter value register
NT_ADDR
15
14
13
12
11
10
9
1
1
1
1
8
7
6
5
4
PWM_1CH_COUNT
RW
1
1
1
1
1
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0000
3
2
1
0
1
1
1
1
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
12:0
PWM_1CH PWM_1CH_COUNT PWM max. counter value
_COUNT
This value is the initial value for the internal counter. Regardless of the
operation mode, if PWM_1CH_COUNT is written when the internal
counter is counting backwards, the new initial value will not take effect
until the internal counter counts down to 0, i.e. a complete period.
A2160008
Bit
Name
Type
Reset
PWM_1CH_THR PWM threshold value register
ESH_ADDR
15
14
13
Bit(s) Mnemonic Name
12:0
Description
12
11
10
9
0
0
0
0
8
7
6
5
4
PWM_1CH_THRES
RW
0
0
0
0
0
0000
3
2
1
0
0
0
0
0
Description
PWM_1CH PWM_1CH_THRES PWM threshold value
_THRES
When the internal counter value is bigger than or equal to
PWM_1CH_THRES, the PWM output signal will be 0. When the
internal counter is less than PWM_1CH_THRES, the PWM output
signal will be 1.
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MT2523 Series Reference Manual
14. Keypad Scanner
14.1.
General Description
The keypad supports two types of keypads, 3*3 single keys and 3*3 configurable double keys, and it will not be
powered off to support the system wake-up event.
The 3*3 keypad can be divided into two parts: 1) The keypad interface including three columns and three rows
(see Figure 14-1 and Figure 14-2); 2) The key detection block provides key pressed, key released and de-bounce
mechanisms.
Each time the key is pressed or released, i.e. something different in the 3x3 matrix, the key detection block senses
the change and recognizes if a key has been pressed or released. Whenever the key status changes and is stable, a
KEYPAD IRQ will be issued. The MCU can then read the key(s) pressed directly in register KP_MEM1 and KP_MEM2.
To ensure the key pressed information is not missed, the status register in keypad will not be read-cleared by the
APB read command. The status register can only be changed by the key-pressed detection FSM.
This keypad detects one or two keys pressed simultaneously with any combination. Figure 14-3 shows the
condition when one key is pressed. Figure 14-4(a) and Figure 14-4(b) illustrate the cases of two keys pressed. Since
the key pressed detection depends on the HIGH or LOW level of the external keypad interface, if the keys are
pressed at the same time, and there exists a key that is on the same column and the same row with other keys, the
pressed key cannot be correctly decoded. For example, if there are three key pressed: key1 = (x1, y1), key2 = (x2,
y2), and key3 = (x1, y2), both key3 and key4 = (x2, y1) will be detected, and therefore they cannot be distinguished
correctly. Hence, the keypad detects only one or two keys pressed simultaneously in any combination. More than
two keys pressed simultaneously in a specific pattern will retrieve wrong information.
The 3*3 keypad supports a 3*3*2 = 18 keys matrix. The 18 keys are divided into 9 sub groups, and each group
consists of 2 keys and a 20ohm resistor. Besides the limitation of the 3*3 keypad, 3*3 keypad has another
limitation, which is it cannot detect two keys pressed simultaneously when the two keys are in one group, i.e. the
3*3 keypad cannot detect key 0 and key 1 or key 15 and key 16 pressed simultaneously.
Table 14-1. 3*3 single key’s order number in COL/ROW matrix
COL0
COL1
COL2
ROW2
18
19
20
ROW1
9
10
11
ROW0
0
1
2
Table 14-2. 3*3 double key’s order number in COL/ROW matrix
COL0
COL1
COL2
ROW2
26/27
28/29
30/31
ROW1
13/14
15/16
17/18
ROW0
0/1
2/3
4/5
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COL2
COL2
COL0
COL0
COL1
COL1
11
11
11
11
11
11
11
11
ROW2
ROW2
11
ROW1
ROW1
ROW0
ROW0
Baseband
Baseband
PMIC
PMIC integrated
integrated BB
BB chip
chip
Figure 14-1. 3x3 keypad matrix (9 keys)
KCOL0
KROW0
KCOL1
2
0
4
3
1
KROW1
9
7
10
16
14
15
5
11
8
KROW2
KCOL2
12
18
17
19
Baseband
Figure 14-2. 3x3 keypad matrix (18 keys)
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MT2523 Series Reference Manual
14.1.1.
Waveform
Key Pressed
De-bounce time
De-bounce time
Key-pressed Status
KP_IRQ
KEY_PRESS_IRQ
KEY_RELEASE_IRQ
Figure 14-3. One key pressed with de-bounce mechanism denoted
Key1 pressed
Key2 pressed
Status
IRQ
Key1 pressed
Key2 pressed
Key1 released
Key2 released
Key2 released
Key1 released
(a)
Key1 pressed
Key2 pressed
Status
IRQ
Key1 pressed
Key2 pressed
(b)
Figure 14-4. (a) Two keys pressed, case 1; (b) Two keys pressed, case 2
14.1.2.
14.1.2.1.
Keypad Detection Flow
Single Keypad Detection
In single keypad, the KROWx is always in output mode and KCOLx always in input mode. KCOLx has low detection
capability, which means that if there are no keys pressed, KCOLx will be pulled up and KROWx always pulled low.
In Figure 14-2, assume A1 (red key) is pressed, KCOLx can detect key pressed by the low pulse signal. According to
the order of low pulse time occurrence, t1, t2 and t3 decide which KROWx is pressed. In this example, KCOL0 can
detect a low pulse signal at t1 to know A1 key has been pressed.
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MT2523 Series Reference Manual
Figure 14-5. Single keypad detection method
14.1.2.2.
Double Keypad Detection Flow
Figure 14-6 is the brief schematic diagram of double keypad internal circuit, including the following characteristics:
1.
20K ohm resistors on new added keys are required.
2.
KCOL needs 200K ohm internal PD/PU resistors.
3.
KROW needs 2K ohm internal PD resistors.
4.
KROW/KCOL should be bi-directional.
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Figure 14-6. Brief schematic diagram of double keypad
The detection flow of single keypad case in double keypad hardware is described step by step in Figure 14-7, Figure
14-8 and Figure 14-9. In Figure 14-7, KCOLx is initialized as input mode and the KROWx as output mode. In step 1,
internal pull up resistor is enabled in KCOLx to let it stuck at high, and output low to all of KROWx in step 2. In step
4, the falling edge signal can be detected from KCOL0 to start key scanning.
Figure 14-7. Single key case
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MT2523 Series Reference Manual
The keypad row scan is depicted in Figure 14-8. The pull-up resistor is disabled and the pull-down resistor is
enabled to let KCOL0 stuck at low in step 5 and 6. In step 7, KROW0 is sent logic high pulse at time t1, and KCOL0
can receive high pulse signal at time t1 due to key B is still pressed. Hence, the keypad in which rows can be
decided.
Figure 14-8. Row scan
The row position is decided after the row scan. In Figure 14-8, column scanning is conducted to locate the final
position of key. All KROWx are changed to input mode, and pull-down resistor is enabled in step 9. Switch KCOL0
to output mode and send logic high pulse in step 10 for KROW0 to receive logic low level and know key B is
pressed in the final step 11.
Figure 14-9. Column scan
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MT2523 Series Reference Manual
14.1.3.
Programming Guide
14.1.3.1.
Single Keypad Command Sequence Example
Address
A20D0024
Register name
KP_EN
A20D0020
KP_SEL
A20D0018
A20D0018
KP_DEBOUNCE
KP_DEBOUNCE
14.1.3.2.
Value
0x0001
W
0x1c70
W
0x0018
0x0018
R
Loop
Register function
Enable keypad
Select single keypad
Enable 3 rows and 3 columns
Set up de-bounce time
Loop
Double Keypad Command Sequence Example
Address
A20D0024
Register name
KP_EN
A20D0020
A20D0018
A20D001C
A20D0018
14.2.
R/W
W
R/W
W
Value
0x0001
KP_SEL
W
0x1c71
KP_DEBOUNCE
KP_SCAN_TIMING
KP_DEBOUNCE
W
W
0x0018
0x0011
0x0018
R
Loop
Register function
Enable keypad
Select double keypad;
Enable 3 rows and 3 columns
Set up de-bounce time
Loop
Register Definition
Module name: KP Base address: (+A20D0000h)
Address
Name
Width
Register Function
A20D0000
KP_STA
16
Keypad Status
A20D0004
KP_MEM1
16
Keypad Scanning Output Register
Shows the key-pressed status of key 0 (LSB) ~ key 15. Refer to Table
14-1 and Table 14-2.
A20D0008
KP_MEM2
16
Keypad Scanning Output Register
Shows the key-pressed status of key 16 (LSB) ~ key 31. Refer to
Table 14-1 and Table 14-2.
16
De-bounce Period Setting
Defines the waiting period before key pressing or release events are
considered stable. If the de-bounce setting is too small, the keypad
will be too sensitive and detect too many unexpected key presses.
The suitable de-bounce time setting must be adjusted according to
the user's habit.
A20D0018
KP_DEBOUNCE
A20D001C
KP_SCAN_TIMI
NG
16
A20D0020
KP_SEL
16
A20D0024
KP_EN
16
Keypad Scan Timing Adjustment Register
Sets up the 3*3 keypad scan timing. Note: ROW_SCAN_DIV >
ROW_ HIGH_PULSE and COL_SCAN_DIV > COL_
HIGH_PULSE. ROW_ HIGH_PULSE /COL_ HIGH_PULSE are
used to lower the power consumption for it decreases the actual scan
number during the de-bounce time.
Keypad Selection Register
For selecting:
1: To use single keypad or double keypad
2: Which cols and rows are used when double keypad is used
Keypad Enable Register
Enables/Disables keypad.
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MT2523 Series Reference Manual
A20D0000 KP_STA
Bit
Name
Type
Reset
15
14
13
Keypad Status
12
11
10
9
0000
8
7
6
5
4
3
2
1
2
1
0
STA
RO
0
Overview
Bit(s) Mnemonic Name
0
STA
Description
Indicates keypad status
This register will not be cleared by the read operation.
0: No key pressed
1: Key pressed
STA
A20D0004 KP_MEM1
Bit
15
14
13
KEY1 KEY1 KEY1
Name
5
4
3
Type
RO
RO
RO
Reset
1
1
1
Overview
Keypad Scanning Output Register
12
11
8
7
6
5
EE3F
4
3
0
KEY5 KEY4 KEY3 KEY2 KEY1 KEY0
RO
1
RO
1
RO
1
RO
1
RO
1
RO
1
Shows the key-pressed status of key 0 (LSB) ~ key 15. Refer to Table 14-1 and Table 14-2.
15
KEY15
KEY15
14
KEY14
KEY14
13
KEY13
KEY13
11
KEY11
KEY11
10
KEY10
KEY10
9
KEY9
KEY9
5
KEY5
KEY5
4
KEY4
KEY4
3
KEY3
KEY3
2
KEY2
KEY2
1
KEY1
KEY1
0
KEY0
KEY0
Description
A20D0008 KP_MEM2
15
14
13
Keypad Scanning Output Register
12
11
10
Name KEY3 KEY3 KEY2 KEY2 KEY2 KEY2
1
0
9
8
7
6
Type
RO
RO
RO
RO
RO
RO
Reset
1
1
1
1
1
1
Overview
9
KEY1
KEY11
KEY9
0
RO
RO
RO
1
1
1
Bit(s) Mnemonic Name
Bit
10
9
8
7
6
5
FC1F
4
3
2
1
0
KEY2 KEY1 KEY1 KEY1 KEY1
0
9
8
7
6
RO
RO
RO
RO
RO
1
1
1
1
1
Shows the key-pressed status of key 16 (LSB) ~ key 31. Refer to Table 14-1 and Table 14-2.
Bit(s) Mnemonic Name
15
KEY31
KEY31
14
KEY30
KEY30
13
KEY29
KEY29
Description
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
12
KEY28
KEY28
11
KEY27
KEY27
10
KEY26
KEY26
4
KEY20
KEY20
3
KEY19
KEY19
2
KEY18
KEY18
1
KEY17
KEY17
0
KEY16
KEY16
A20D0018
Bit
Name
Type
Reset
15
Overview
Description
KP_DEBOUNC
De-bounce Period Setting
E
14
13
12
11
10
9
8
0
0
0
1
0
0
A20D001C
15
4
3
2
1
0
0
0
0
0
0
0
De-bounce time = KP_DEBOUNCE/32ms
KP_SCAN_TIM
Keypad Scan Timing Adjustment Register
ING
14
13
12
COL_ HIGH_PULSE
RW
0
0
0
0
Overview
5
Description
DEBOUNC DEBOUNCE
E
Bit
Name
Type
Reset
6
DEBOUNCE
RW
0
0
Defines the waiting period before key pressing or release events are considered stable. If the debounce setting is too small, the keypad will be too sensitive and detect too many unexpected key
presses. The suitable de-bounce time setting must be adjusted according to the user's habit.
Bit(s) Mnemonic Name
13:0
7
0400
11
10
9
8
ROW_ HIGH_PULSE
RW
0
0
0
0
7
6
5
4
COL_SCAN_DIV
RW
0
0
0
1
0011
3
2
1
0
ROW_SCAN_DIV
RW
0
0
0
1
Sets up the 3*3 keypad scan timing for double keypad.
Note: ROW_SCAN_DIV > ROW_ HIGH_PULSE and COL_SCAN_DIV > COL_ HIGH_PULSE.
ROW_ HIGH_PULSE /COL_ HIGH_PULSE are used to lower the power consumption for it
decreases the actual scan number during the de-bounce time.
Bit(s) Mnemonic Name
Description
15:12 COL_
COL_HIGH_PULSE Sets up the COL SCAN high pulse, i.e. cycles of the scan high
HIGH_PUL
pulse
SE
Default 0 means the high scan pulse needs 1 cycle.
11:8
ROW_
ROW_HIGH_PULS Sets up the ROW SCAN high pulse, i.e. cycles of the scan high
HIGH_PUL E
pulse
SE
Default 0 means the high scan pulse needs 1 cycle.
7:4
COL_SCAN COL_SCAN_DIV
_DIV
Sets up the COL SCAN cycle which includes
COL_INTERVAL_DIV and the high pulse period
Default 1 means there are 2 cycles for each scan, including 1 cycle high
pulse and 1 cycle interval.
3:0
ROW_SCA ROW_SCAN_DIV
N_DIV
Sets up the ROW SCAN cycle which includes
ROW_INTERVAL_DIV and the high pulse period
Default 1 means there are 2 cycles for each scan, including 1 cycle high
pulse and 1 cycle interval.
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MT2523 Series Reference Manual
A20D0020 KP_SEL
Bit
15
14
Name
Keypad Selection Register
13
12
11
9
8
KP1_COL_SEL
Type
Reset
0
Overview
0
0
RW
1
1
1C70
6
5
4
3
1
0
0
0
RW
1
2
1
DUMMY2
1
1
0
RW
0
0
Description
9:4
KP1_ROW_ KP1_ROW_SEL
SEL
3:1
DUMMY2
DUMMY2
KP_SEL
KP_SEL
A20D0024 KP_EN
15
14
13
Selects which cols are used when double keypad is used
MT2523 supports maximum 3*3 double. col2, col1 and col0 can be
used.
0: Disable corresponding column
1: Enable corresponding column
Selects which rows are used when double keypad is used
MT2523 supports maximum 3*3 double. row2, row1 and row0 can be
used.
0: Disable corresponding row
1: Enable corresponding row
Selects to use single keypad or double keypad
0: Use single keypad
1: Use double keypad
Keypad Enable Register
12
11
10
9
8
7
0001
6
5
4
3
2
1
Name
Type
Reset
Overview
0
KP_E
N
RW
0
Enables/Disables keypad.
Note: When KP_EN is set to 0, both single and double keypad registers cannot be read and written.
Bit(s) Mnemonic Name
0
0
KP_S
EL
DC
0
For selecting: 1) To use single keypad or double keypad; 2) Which cols and rows are used when
double keypad is used
15:10 KP1_COL_ KP1_COL_SEL
SEL
Bit
7
KP1_ROW_SEL
Bit(s) Mnemonic Name
0
10
KP_EN
KP_EN
Description
0: Disable keypad (Both single and double keypad will not work.)
1: Enable keypad (Either single or double keypad will work.)
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MT2523 Series Reference Manual
15. General Purpose Counter
15.1.
General Description
General purpose counter (GP-counter) is a counter to count a pad toggle times and furthermore calculates the
moving speed. It counts once the channel is enabled and provides an interrupt which will be triggered when the
counter exceeds the threshold.
Depending on the pulse width from pad, you can choose suitable clock source for the GP-counter: 32kHz or 26MHz.
You only have to set up GPCOUNTER_MISC[8]: GPC_BCLK_SEL to choose. The GP-counter will add 1 when the
pluse width from pad is longer than debouce time, which is set on GPCOUNTER_DEBOUNCE.
GP-counter is an always on IP. When the system is in sleep mode, it still works. However, there is no 26MHz clock
source in sleep mode, so users have to switch the clock source to 32kHz, which sets GPCOUNTER_MISC[8]:
GPC_BCLK_SEL to 1’b1.
GP-counter can trigger interrupt and wake-up events (level). You can set up EINT to capture wake-up events from
GP-counter before the system enters sleep mode. Refer to EINT datasheet for more details.
15.1.1.
Programming Guide
GP-counter is an always on IP. To save the most power, the software has to power down the block clock to the
module. You may set up the GP-counter register before powering on the block clock. Next, set up
GPCOUNTER_CON_SET to start counting and set GPCOUNTER_CON_CLR to end counting. Read GPCOUNTER_CON
to see if GP-counter is enabled or not.
The counted data are stored in GPCOUNTER_DATA. Once GPCOUNTER_DATA is read, you may get the number
and clear the counter at the same time.
Programming sequence:
1.
Set up GP-Counter register: Set up clock source, interrupt enable, debounce time, and threshold.
a.
Select 32K clock source before the system enters sleep mode.
b.
Power down GP-counter block clock first then switch block clock source.
2.
Power on GP-counter block clock.
3.
Set up GPCOUNTER_CON_SET to start counting.
4.
Set up GPCOUNTER_CON_CLR to end counting.
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MT2523 Series Reference Manual
15.2.
Register Definition
Module name: GPCOUNTER Base address: (+A21E0000h)
Address
Name
Width
Register Function
A21E0000
GPCOUNTER_
CON
32
GPCOUNTER Control Register
Shows the GP counter status (counter enabled or not).
A21E0004
GPCOUNTER_
CON_SET
32
GPCOUNTER Control Set Register
Sets up the GP counter status (counter enabled).
A21E0008
GPCOUNTER_
CON_CLR
32
GPCOUNTER Control Clear Register
Clears the GP counter enable status (counter not enabled).
A21E000C
GPCOUNTER_
MISC
32
GPCOUNTER MISC Setting
Defines clock and interrupt, etc.
A21E0010
GPCOUNTER_
DEBOUNCE
32
GPCOUNTER De-bounce Period Setting
Defines the waiting period before PAD pressing events are
considered stable. If the de-bounce setting is too small, the
counter will be too sensitive and detect too many unexpected PAD
presses. The suitable de-bounce time setting should be adjusted
according to the user's habit.
A21E0014
GPCOUNTER_
DATA
32
GPCOUNTER Counter for Clear (Read and Clear)
Data counted by GPCOUNTER will be cleared once they are read
A21E0018
GPCOUNTER_
THRESHOLD
32
GPCOUNTER Threshold
When the counter value is bigger than or equal to GPCOUNTER
Threshold, the GP counter interrupt will be triggered.
A21E001C
GPCOUNTER_
INTERRUPT_
STA
32
GPCOUNTER Interrupt Status
Interrupt status
A21E0000
GPCOUNTER
_CON
Bit
Name
Type
Reset
Bit
GPCOUNTER Control Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s)
Mnemoni
c
Name
0
GPC_EN
GPC_CH_EN
A21E0004
Bit
Name
Type
Reset
Bit
16
0
GP
C_
EN
RO
0
Description
GPCOUNTER
_CON_SET
0: Not enable mode.
1: Enable mode.
GPCOUNTER Control Set Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
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MT2523 Series Reference Manual
A21E0004
GPCOUNTER
_CON_SET
GPCOUNTER Control Set Register
00000000
GP
C_S
ET
WO
0
Name
Type
Reset
Bit(s)
Mnemoni
c
Name
0
GPC_SET
GPC_SET
A21E0008
Bit
Name
Type
Reset
Bit
Description
0: Not enable counter
1: Enable counter
GPCOUNTER
_CON_CLR
GPCOUNTER Control Clear Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s)
Mnemoni
c
Name
0
GPC_CLR
GPC_CLR
A21E000C
Bit
0
GP
C_
CL
R
WO
0
Description
0: Enable counter
1: Clear counter enabled
GPCOUNTER
_MISC
GPCOUNTER MISC Setting
31
30
29
28
27
26
25
15
14
13
12
11
10
9
Name
Type
Reset
Bit
16
Name
Type
Reset
Bit(s)
Mnemoni
c
Name
24
GPC_INV
_EN
GPC_INV_EN
00010001
24
23
22
21
20
19
18
17
8
7
6
5
4
3
2
1
GP
C_I
NV
_E
N
RW
0
GP
C_
BC
LK
_SE
L
RW
0
16
GP
C_I
NT
_E
N
RW
1
0
Description
GP-counter will detect rising edge from Pad_in toggle
0: Detect rising edge of a toggle
1: Detect falling edge of a toggle
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MT2523 Series Reference Manual
Bit(s)
Mnemoni
c
Name
Description
Note: Set GPC_INV_EN as the default level of signal from pad (HIGH
or LOW). Once the GP-counter is disabled (GPC_CH_EN=1'b0), it will
keep pad-in signal LEVEL as GPC_INV_EN, no matter the level of
signal from the pad is HIGH or LOW. Issues will happen when the
default level of signal from pad is different from GPC_INV_EN. For
example, when GPC_INV_EN=1'b0, but the default level of signal
from pad is HIGH, the GP-counter will automatically add 1 when
GPC_CH_EN goes from 0 to 1.
16
GPC_INT
_EN
GPC_INT_EN
0: For disable
1: For enable
8
GPC_BCL
K_SEL
GPC_CLK_SEL
0: Clock from 26MHz
1: Clock from 32kHz
A21E0010
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPCOUNTER
_DEBOUNCE
GPCOUNTER De-bounce Period Setting
00000001
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
0
1
GPC_PAD_DEB
RW
0
0
0
0
Bit(s)
Mnemoni
c
Name
Description
15:0
GPC_PA
D_DEB
GPC_DEBOUNCE
De-bounce time = DEB_TIME*clock period
GPC_COUNTER counts according to the GP counter clock, which can
be selected by register GPC_BCLK_SEL.
A21E0014
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
GP
C_
CO
UN
TE
R1_
DA
TA
RO
0
GPCOUNTER
_DATA
30
29
28
GPCOUNTER Counter for Clear (Read and
Clear)
27
26
25
24
23
22
21
20
19
00000000
18
17
16
GPC_COUNTER1_OVERFLOW[30:16]
0
0
0
0
15
14
13
12
11
0
0
0
0
0
Bit(s)
Mnemoni
c
Name
31
GPC_CO
UNTER1_
GPC_OVERFLOW
0
10
0
9
0
8
RO
0
7
0
0
6
5
GPC_COUNTER1_OVERFLOW[15:0]
RO
0
0
0
0
0
0
0
0
3
2
0
0
1
0
0
0
0
0
0
4
0
Description
0: Not overflow
1: Overflow
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MT2523 Series Reference Manual
Bit(s)
Mnemoni
c
30:0
GPC_CO
UNTER1_
OVERFL
OW
Name
Description
GPC_COUNTER
Data counted by GPCOUNTER (read and clear)
DATA
A21E0018
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPCOUNTER
_THRESHOL
D
31
30
15
14
13
12
11
10
0
0
0
0
0
0
1
29
1
28
GPCOUNTER Threshold
0
27
0
26
0
60000000
25
24
23
22
21
20
19
9
8
7
6
5
4
0
0
3
2
0
0
0
GPC_THRESHOLD[30:16]
RW
0
0
0
0
0
GPC_THRESHOLD[15:0]
RW
0
0
0
0
18
17
16
0
0
1
0
0
0
0
0
Bit(s)
Mnemoni
c
Name
Description
30:0
GPC_TH
RESHOL
D
GPC_THRESHOL
D
If GPC_COUNTER > GPC_THRESHOLD, IRQ request.
GPC_COUNTER counts according to the GP counter clock, which can
be selected by register GPC_BCLK_SEL.
A21E001C
Bit
Name
Type
Reset
Bit
GPCOUNTER
_INTERRUP
T_STA
GPCOUNTER Interrupt Status
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit(s)
Mnemoni
c
Name
0
GPC_INT
_STA
GPC_INT_STA
16
0
GP
C_I
NT
_ST
A
RO
0
Description
0: Interrupt
1: No interrupt
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MT2523 Series Reference Manual
16. Auxiliary ADC Unit
16.1.
General Description
MT2523 features one auxiliary ADC function. The auxiliary ADC unit is for identifying the plugged peripheral. The
ADC function contains 8 channels for measuring external channel or internal use and a 12-bit SAR (Successive
Approximation Register) ADC.
PDN_AUXADC
F13M_EN
AUTOSET_STR
IMMEDIATE_STR
APB
BUS
ADC_RDY
DAC
ADC_SDAT
A
ADC_SFS
PUWAIT_EN
Vin
SPLD
COMP
AUXADC_REG
AUXADC_CORE
AUXADC_SIF
ADC_SCKO
SADC_SIF
ADC
SEL_LATCH [7:0]
ADC_STATE
ADC_LATCH
Latch_Dat
a
ADC_S
T
ADC_SEL_IN
ADC_PDN
ADC_SEL_OUT
Figure 16-1. AUXADC architecture
Each channel operates in immediate mode. In immediate mode, the A/D converter samples the value once only
when the flag of channel in the AUXADC_CON1 register is set. For example, if flag IMM0 in AUXADC_CON1 is set,
the A/D converter will sample the data for channel 0. The IMM flags should be cleared and set again to initialize
another sampling.
The value sampled for channel 0 is stored in register AUXADC_DAT0, and the value for channel 1 is stored in
register AUXADC_DAT1, and so on.
If the AUTOSET flag in register AUXADC_CON3 is set, the auto-sample function will be enabled. So far, it is used in
test mode only. The A/D converter samples the data for the channel in which the corresponding data register is
read. For example, the AUTOSET flag is set. When the data register AUXADC_DAT0 is read, the A/D converter will
sample the next value for channel 0 immediately.
If multiple channels are selected at the same time, the task will be performed sequentially on every selected
channel. For example, if AUXADC_CON1 is set to 0x3f, i.e. 6 channels are selected, the state machine in the unit
will start sampling from channel 5 to channel 0 and save the values of each input channel in respective registers.
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Table 16-1. AUXADC channel description
16.2.
AUXADC Channel ID
Description
Channel 6
GPDAC (test only)
Channel 7
Audio DL_HPL (internal use)
Channel 8
Audio DL_HPR (internal use)
Channel 11
External
Channel 12
External
Channel 13
External
Channel 14
External
Channel 15
External
Register Definition
Module name: AUXADC Base address: (+A0240000h)
Address
Name
Widt
h
A0240004
AUXADC_CON
1
16
Auxiliary ADC Control Register 1
A024000C
AUXADC_CON
3
16
Auxiliary ADC Control Register 3
A0240028
AUXADC_DAT
6
16
Auxiliary ADC Channel 6 Register (GPDAC)
A024002C
AUXADC_DAT
7
16
Auxiliary ADC Channel 7 Register (Audio DL_HPL)
A0240030
AUXADC_DAT
8
16
Auxiliary ADC Channel 8 Register (Audio DL_HPR)
A024003C
AUXADC_DAT
11
16
Auxiliary ADC Channel 11 Register (External)
A0240040
AUXADC_DAT
12
16
Auxiliary ADC Channel 12 Register (External)
A0240044
AUXADC_DAT
13
16
Auxiliary ADC Channel 13 Register (External)
A0240048
AUXADC_DAT
14
16
Auxiliary ADC Channel 14 Register (External)
A024004C
AUXADC_DAT
15
16
Auxiliary ADC Channel 15 Register (External)
A0240004
AUXADC_CO
N1
Bit
Name
Type
Reset
15
IM
M1
5
RW
0
14
IM
M1
4
RW
0
13
IM
M1
3
RW
0
12
IM
M1
2
RW
0
Register Function
Auxiliary ADC Control Register 1
11
10
9
8
7
6
IM
M11
IM
M8
IM
M7
IM
M6
RW
0
RW
0
RW
0
RW
0
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5
4
0000
3
2
1
0
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These bits are set individually to sample the data for the corresponding channel. It
supports multiple flags.
Overview
Bit(s)
Mnemoni
c
Name
Description
15
IMM15
IMM15
Channel 15 immediate mode
0: The channel is not selected.
1: The channel is selected.
14
IMM14
IMM14
Channel 14 immediate mode
0: The channel is not selected.
1: The channel is selected.
13
IMM13
IMM13
Channel 13 immediate mode
0: The channel is not selected.
1: The channel is selected.
12
IMM12
IMM12
Channel 12 immediate mode
0: The channel is not selected.
1: The channel is selected.
11
IMM11
IMM11
Channel 11 immediate mode
0: The channel is not selected.
1: The channel is selected.
8
IMM8
IMM8
Channel 8 immediate mode
0: The channel is not selected.
1: The channel is selected.
7
IMM7
IMM7
Channel 7 immediate mode
0: The channel is not selected.
1: The channel is selected.
6
IMM6
IMM6
Channel 6 immediate mode
0: The channel is not selected.
1: The channel is selected.
A024000
C
AUXADC_CO
N3
Auxiliary ADC Control Register 3
Bit
15
Name
AU
TO
SET
SO
FT_
RS
T
Type
Reset
RW
0
RW
0
14
13
12
11
10
9
8
7
6
5
4
0010
3
2
1
0
AU
XA
DC
_ST
A
RO
0
Overview
Bit(s)
Mnemoni
c
Name
Description
15
AUTOSET
AUTOSET
(Test mode only) Defines the auto-sample mode of the
module. In auto-sample mode, each channel with its sample
register read can start sampling immediately without
configuring the control register AUXADC_CON1 again.
7
SOFT_RS
T
SOFT_RST
Software reset AUXADC state machine
0: Normal function
1: Reset AUXADC state machine
0
AUXADC
_STA
AUXADC_STA
Defines the state of the module
0: This module is idle.
1: This module is busy.
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A0240028
Bit
Name
Type
Reset
15
AUXADC_DA
T6
14
13
12
Auxiliary ADC Channel 6 Register (GPDAC)
11
10
9
8
7
0
0
0
0
0
6
5
DAT6
RO
0
0
0000
4
3
2
1
0
0
0
0
0
0
Overview
Bit(s)
Mnemoni
c
Name
Description
11:0
DAT6
DAT6
Sampled data for channel 6
A024002C
Bit
Name
Type
Reset
15
AUXADC_DA
T7
14
13
12
Auxiliary ADC Channel 7 Register (Audio
DL_HPL)
11
10
9
8
7
0
0
0
0
0
6
5
DAT7
RO
0
0
0000
4
3
2
1
0
0
0
0
0
0
Overview
Bit(s)
Mnemoni
c
Name
Description
11:0
DAT7
DAT7
Sampled data for channel7
A0240030
Bit
Name
Type
Reset
15
AUXADC_DA
T8
14
13
12
Auxiliary ADC Channel 8 Register (Audio
DL_HPR)
11
10
9
8
7
0
0
0
0
0
6
5
DAT8
RO
0
0
0000
4
3
2
1
0
0
0
0
0
0
Overview
Bit(s)
Mnemoni
c
Name
Description
11:0
DAT8
DAT8
Sampled data for channel 8
A024003C
Bit
Name
Type
Reset
15
AUXADC_DA
T11
14
13
12
Auxiliary ADC Channel 11 Register (External)
11
10
9
8
7
0
0
0
0
0
6
5
DAT11
RO
0
0
0000
4
3
2
1
0
0
0
0
0
0
Overview
Bit(s)
Mnemoni
c
Name
Description
11:0
DAT11
DAT11
Sampled data for channel 11
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A0240040
Bit
Name
Type
Reset
15
AUXADC_DA
T12
14
13
12
Auxiliary ADC Channel 12 Register (External)
11
10
9
8
7
0
0
0
0
0
6
5
DAT12
RO
0
0
0000
4
3
2
1
0
0
0
0
0
0
Overview
Bit(s)
Mnemoni
c
Name
Description
11:0
DAT12
DAT12
Sampled data for channel 12
A0240044
Bit
Name
Type
Reset
15
AUXADC_DA
T13
14
13
12
Auxiliary ADC Channel 13 Register (External)
11
10
9
8
7
0
0
0
0
0
6
5
DAT13
RO
0
0
0000
4
3
2
1
0
0
0
0
0
0
Overview
Bit(s)
Mnemoni
c
Name
Description
11:0
DAT13
DAT13
Sampled data for channel 13
A0240048
Bit
Name
Type
Reset
15
AUXADC_DA
T14
14
13
12
Auxiliary ADC Channel 14 Register (External)
11
10
9
8
7
0
0
0
0
0
6
5
DAT14
RO
0
0
0000
4
3
2
1
0
0
0
0
0
0
Overview
Bit(s)
Mnemoni
c
Name
Description
11:0
DAT14
DAT14
Sampled data for channel 14
AUXADC_DA
T15
A024004
C
Bit
Name
Type
Reset
15
14
13
12
Auxiliary ADC Channel 15 Register (External)
11
10
9
8
7
0
0
0
0
0
6
5
DAT15
RO
0
0
0000
4
3
2
1
0
0
0
0
0
0
Overview
Bit(s)
Mnemoni
c
Name
Description
11:0
DAT15
DAT15
Sampled data for channel 15
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16.3.
Programming Guide
Turn on auxadc
clock
Sel channel
(IMM mode)
Wait for adc_state==idle
Sample data
1.
Immediate mode sampling is accomplished by programming AUXADC_CON1 with the channels to be
sampled.
2.
Sample data after selecting channel. Wait for AUXADC_CON3[0]:AUXADC_STAT changing from busy to idle. It
is necessary to program AUXADC_CON1 back to 0 before sampling again
3.
To do the next immediate mode, wait for 17us for per channel enable in the previous AUXADC_CON1 setting.
If there are flag IMM6 and IMM7 in AUXADC_CON1, wait for 34us.
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17. General Purpose DAC
17.1.
General Description
The general purpose DAC is a fat monitor containing 128x10 SRAM in design. It outputs data from SRAM to DAC
continuously at 1.083MHz and the output region from register settings.
17.2.
Register Definition
Module name: GPDAC Base address: (+A21B0000h)
Address
Name
Width
Register Function
A21B001C
SWRST
OUTPUT_COM
MAND
A21B0020
OUTPUT_REGI
ON
16
Output address region
A21B0024
WRITE_COMM
AND
32
Write command
A21B0050
GPDAC_SRAM
_PWR
16
SRAM power control register
A21B0018
A21B0018
Bit
SWRST
15
14
13
16
Soft reset
16
Output command
Soft reset
12
11
10
0000
9
8
7
6
5
4
3
2
1
Name
Type
Reset
0
SWRS
T
RW
0
Overview
Bit(s) Name
0
Description
Resets all register
0: Idle, in normal mode
1: Reset
SWRST
A21B001C
Bit
15
OUTPUT_COM
Output command
MAND
14
13
12
11
10
9
0010
8
7
6
Name
Type
Reset
5
4
REPE
AT_E
N
RW
1
3
2
1
0
OUTP
UT_E
N
RW
0
Overview
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Bit(s) Name
Description
GPDAC is always in repeat mode; it repeats by the configuration of the
OUTPUT REGION register.
0: Stop repeat
1: GPDAC is in repeat mode (default)
4
REPEAT_EN
0
OUTPUT_EN
A21B0020
Bit
Name
Type
Reset
GPDAC starts to output data. If STOP is required, set output_en and
repeat_en to 0.
0: Stop output
1: Output data
OUTPUT_REGI
Define the range of output
ON
15
14
13
12
11
10
9
OUTPUT_END_ADDR
RW
0
0
0
0
0
0
8
7
0
0000
6
0
5
4
3
2
1
0
OUTPUT_START_ADDR
RW
0
0
0
0
0
0
Overview
Bit(s) Name
Description
14:8
OUTPUT_END_ADDR Defines the range of output (end of address)
6:0
OUTPUT_START_AD
DR
A21B0024
Bit
Defines the range of output (start of address)
WRITE_COMM
Write command
AND
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
0
0
0
0
0
0
Name
Type
Reset
Bit
Name
Type
Reset
SRAM_DATA[7:0]
RW
0
0
0
0
17
16
1
0
0
0
SRAM_DAT
A[9:8]
RW
0
0
SRAM_ADDR
RW
0
0
0
Overview
Bit(s) Name
Description
17:8
SRAM_DATA
Write in SRAM. SRAM_data
6:0
SRAM_ADDR
Write in SRAM. SRAM address
A2370050
Bit
15
GPDAC_SRA
M_PWR
14
13
12
SRAM power control register
11
10
9
8
7
6
3
2
Name
GP
DA
C_S
LEE
PB
GP
DA
C_
PD
Type
Reset
RW
1
RW
0
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5
000A
4
1
GP
DA
C_I
SOI
NT
B
RW
1
0
GP
DA
C_
RE
T
RW
0
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Bit(s)
Name
3
GPDAC_SLEEPB
SRAM sleep control
2
GPDAC_PD
SRAM power down control
1
GPDAC_ISOINTB
SRAM ISO control
0
GPDAC_RET
SRAM retention control
17.3.
Description
Programming Guide
Turn on gpdac
clock
Set ACFG_CLK_CG_CLR=0x0040
Write in sram
Set GPDAC_WRITE_COMMAND
Config Output
Set GPDAC_OUTPUT_REGION
Set GPDAC_OUTPUT_COMMAND
START output
Definition of each step shown in the figure above:
1.
Turn on GPDAC.
2.
Write in SRAM: Write data into SRAM by register GPDAC_WRITE_COMMAND, including SRAM_ADDR and
SRAM_DATA.
3.
Configure output: Set up output data region by GPDAC_OUTPUT_REGION and set repeat_en (default 1)
and output_en = 1 by GPDAC_OUTPUT_COMMAND.
4.
Start output to DAC.
5.
Stop output DAC: Set GPDAC_OUTPUT_COMMAND = 0x00. Configure output_en and repeat_en as 0.
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17.4.
Limitations and Important Notes
This section describes the limitations and some important notes on GPDAC.
17.4.1.
Soft Reset
GPDAC_SWRST resets all registers expect for itself and the data in SRAM.
Set GPDAC_SWRST to 1 then set GPDAC_SWRST to 0 to complete soft reset.
17.4.2.
Definition of repeat_mode and no_repeat Mode
By default repeat_en is 1. output_en = 1 will start output data as expected, and DA_GPDAC_BUS will output the
data by the settings of start address and end address in GPDAC_OUTPUT_REGION continuously.
However, if repeat_en turns to 0, DA_GPDAC_BUS will still output until the setting of the end address in
GPDAC_OUTPUT_REGION and output_en will become 0 automatically in the end of output.
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MT2523 Series Reference Manual
18. Accessory Detector
18.1.
General Description
The hardware accessory detector (ACCDET) detects plug-in/out of multiple types of external components. Based
on the suggested circuit (see Figure 18-1), this design supports two types of external components, which are
microphone and hook-switch. This design uses the internal 2-bit comparator to separate external components. The
de-bounce scheme is also supported to resist uncertain input noises. When the plug-in/out state is stable, the
PWM unit of ACCDET will enable the comparator, MBIAS and threshold voltage of the comparator periodically for
the plugging detection. With suitable PWM settings, very low-power consumption can be achieved when the
detection feature is enabled. To compensate the delay between the detection login and comparator, the delay
enabling scheme is adopted. Given the suitable delay number compared to the rising edge of PWM high pulse, the
stable plugging state can be prorogated to digital detection logic, and the correct plugging state can then be
detected and reported.
Figure 18-2 shows the state machine. The state machine is executed by the software to control the ACCDET design.
The ACCDET design will send one interrupt to acknowledge the software after the ACCDET input state is changed
and the duration of the state is longer than de-bounce time. The software needs to read out the memorized
ACCDET input state and follow the recommended state machine to program the register in it.
Brown: Register
Red: Digital Signal
110k
1.77V
MICBIASP
1.9V
1220k
0.4V
350k
Pploy
w=0.5u
CMP_clk
A
RG_VPWDB_MBIAS
+
-
B
AccDetect
+
-
Vth_clk
MBias_clk
AccDetection Logic
Figure 18-1. Suggested accessory detection circuit
(Note.RG_VPWDB_MBIAS = A21C0060[1])
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RG_VPWDB_MBIAS=0
means Microphone
activated;
RG_VPWDB_MBIAS=1
means not activated
Standby
(not plugged)
Always:
MicBias_clk=on/off
Vth_MB_clk=on/off
CMP_clk=on/off
RG_VPWDB_MBAIS=
0 or 1
MicBias_clk=on/off
Vth_clk=on/off
CMP_clk=on/off
A=1
B=1
A=0
B=1
MIC
RG_VPWDB_MBAIS=
0 or 1
MicBias_clk=on/off
Vth_clk=on/off
CMP_clk=on/off
A=0,B=0
A=0
B=1
A=1
B=1
A=0
B=0
Hook Switched
RG_VPWDB_MBAIS=
0 or 1
MicBias_clk=on/off
Vth_clk=on/off
CMP_clk=on/off
Figure 18-2. State machine between microphone and hook-switch plug-in/out change
18.1.1.
Pulse Width Modulation
The ACCDET design also provides one Pulse-Width-Modulation (PWM) to enable the comparator, microphone’s
bias current and the threshold voltage of the comparator periodically. With suitable PWM and settings for delayed
enabling, the ACCDET can achieve very low power consumption and accurate plug-in/out detection. Figure 18-3 is
a timing diagram example of such PWM design. The output from PWM keeps being at 0 until the value of the
counter is smaller than the programmed threshold.
PWM_WIDTH
Internal Counter
Threshold
PWM Signal
Figure 18-3. PWM waveform
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18.2.
Register Definition
Module name: ACCDET Base address: (+A21F0000h)
Address
A21F0000
A21F0004
A21F0008
A21F000C
A21F0010
A21F0024
A21F0028
A21F002C
A21F0030
A21F0038
A21F003C
A21F0040
A21F0044
A21F0048
A21F004C
A21F0050
A21F0054
A21F0058
A21F005C
A21F0000
Bit
Name
ACCDET_RSTB
ACCDET_CTRL
ACCDET_STATE_SWCTRL
ACCDET_PWM_WIDTH
ACCDET_PWM_THRESH
ACCDET_EN_DELAY_NU
M
ACCDET_PWM_IDLE_VA
LUE
ACCDET_DEBOUNCE0
ACCDET_DEBOUNCE1
ACCDET_DEBOUNCE3
ACCDET_IRQ_STS
ACCDET_CURR_IN
ACCDET_SAMPLE_IN
ACCDET_MEMOIZED_IN
ACCDET_LAST_MEMOIZE
D_IN
ACCDET_FSM_STATE
ACCDET_CURR_DEBOUN
CE
ACCDET_VERSION
ACCDET_IN_DEFAULT
Width
32
32
32
32
32
Register function
ACCDET software reset register
ACCDET control register
ACCDET state switch control register
ACCDET PWM width register
ACCDET PWM threshold register
ACCDET enable delay number register
32
ACCDET PWM IDLE value register
32
32
32
32
32
32
32
32
ACCDET debounce0 register
ACCDET debounce1 register
ACCDET debounce3 register
ACCDET interrupt status register
ACCDET current input status register
ACCDET sampled input status register
ACCDET memorized input status register
ACCDET last memorized input status
register
ACCDET FSM status register
ACCDET current de-bounce status register
32
32
32
32
32
ACCDET version code
Default value of accdet_in
ACCDET_RSTB ACCDET software reset register
0000000
1
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
16
Mne
Type
Reset
Bit
0
RST
B
RW
1
Mne
Type
Reset
Overview
After applying the setting to register, software reset will be necessary for state initialization.
Without this process, ACCDET may detect incorrect plug state.
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Bit(s) Mnemonic Name
0
RSTB
A21F0004
Bit
Description
Set to 0 to reset the ACCDET unit; set to 1 after the reset
process is finished.
This software reset will clear ACCDET's enable signal but keep all
ACCDET's settings. After the reset process, ACCDET will return
to the IDLE state.
RSTB
ACCDET_CTRL ACCDET control register
0000000
1
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Mne
Type
Reset
Bit
ACC
DET
_EN
RW
0
Mne
Type
Reset
Bit(s) Mnemonic Name
0
ACCDET_ EN
EN
A21F0008
Bit
Description
Set to 1 to enable the ACCDET unit.
ACCDET_STAT ACCDET state switch control register
E_SWCTRL
0000000
1
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Mne
Type
Reset
Bit
MBI VTH
AS_P _PW
WM_ M_E
EN
N
RW RW
0
0
Mne
Type
Reset
Bit(s) Mnemonic Name
CMP
_PW
M_E
N
RW
0
RW
1
Description
4
MBIAS_P MBIAS_PWM_ENEnables PWM of ACCDET MBIAS unit
WM_EN
3
VTH_PW VTH_PWM_EN
M_EN
Enables PWM of ACCDET voltage threshold unit
2
CMP_PW CMP_PWM_EN
M_EN
RESERVE Reserved
D
Enables PWM of ACCDET comparator
0
RES
ERV
ED
Reserved as 1
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MT2523 Series Reference Manual
A21F000C
Bit
ACCDET_PWM ACCDET PWM width register
_WIDTH
0000000
0
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
PWM_WIDTH
RW
0
0
0
0
0
0
0
0
0
0
Mne
Type
Reset
Bit
Mne
Type
Reset
0
0
0
0
0
Bit(s) Mnemonic Name
Description
15:0 PWM_WI PWM_WIDTH
DTH
ACCDET PWM width
It is PWM max. counter value. It will be the initial value for the
internal counter. The PWM internal counter always counts down
to 0 to finish one complete period, and the value of the internal
counter will return to the value of PWM_WIDTH.
PWM output frequency = (32k/PWM_WIDTH) Hz
PWM WIDTH = 10
Stable
Detection Sate
Stable
Detection Sate
PWM THRESH = 6
RISE_DELAY_NUM = 2
FALL_DELAY_NUM = 1
Figure 18-4. PWM waveform with register value present
A21F0010
Bit
ACCDET_PWM ACCDET PWM threshold register
_THRESH
0000000
0
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
PWM_THRESH
RW
0
0
0
0
0
0
0
0
0
0
Mne
Type
Reset
Bit
Mne
Type
Reset
0
0
0
0
0
Bit(s) Mnemonic Name
Description
15:0 PWM_TH PWM_THRESH
RESH
ACCDET PWM threshold
When the internal counter value is bigger than or equal to
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A21F0024
Bit
Description
PWM_THRESH, the PWM output signal will be 0. When the
internal counter is smaller than PWM_THRESH, the PWM
output signal will be 1.
PWM output duty cycle = (PWM_THRESH)x(1/32) ms
ACCDET_EN_ ACCDET enable delay number register
DELAY_NUM
00000101
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
1
Mne
Type
Reset
Bit
FALL
_DE
Mne LAY
_NU
M
Type
RW
Reset
0
RISE_DELAY_NUM
0
0
0
0
Bit(s) Mnemonic Name
15
0
1
RW
0
0
Description
FALL_DE FALL_DELAY_N Falling delay cycle compared to CMP PWM waveform
LAY_NUM UM
Suitable delay cycle is necessary for making sure the plug state
is stable after ACCDET is disabled. This number indicates the
clock cycle number between the point when the digital part of
ACCDET stops receiving accdet_in and the point when the
analog part of ACCDET stops working.
14:0 RISE_DEL RISE_DELAY_N
AY_NUM UM
A21F0028
Bit
0
Rising delay cycle compared to PWM waveform
Suitable delay cycle is necessary for making sure the plug state
is stable before ACCDET is activated. This number indicates the
clock cycle number between the point when the analog part of
ACCDET starts working and the point when the digital part of
ACCDET starts receiving stable accdet_in.
ACCDET_PWM ACCDET PWM IDLE value register
_IDLE_VALUE
0000000
1
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Mne
Type
Reset
Bit
MBI
VTH CMP
AS
RW RW RW
0
0
0
Mne
Type
Reset
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
2
MBIAS
MBIAS
IDLE value of MBIAS PWM (MBias_clk in Figure 1-1)
1
VTH
VTH
IDLE value of VTH PWM (Vth_clk in Figure 1-1)
0
CMP
CMP
IDLE value of CMP PWM (CMP_clk in Figure 1-1)
A21F002C
Bit
ACCDET_DEB ACCDET debounce0 register
OUNCE0
0000001
0
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
DEBOUNCE0
RW
0
0
0
0
0
1
0
0
0
0
Mne
Type
Reset
Bit
Mne
Type
Reset
0
Overview
0
0
0
0
This register defines the waiting period before hook key press event is considered stable. If
the de-bounce setting is too small, the hook key press will be too sensitive and detect too
many unexpected plug-ins/outs or hook press/release events. The suitable de-bounce time
setting must be adjusted according to the user's demand.
Bit(s) Mnemonic Name
Description
15:0 DEBOUNC DEBOUNCE0
E0
De-bounce time for hook key press event (control of the
next state = Hook Switch State in Figure 1-2)
De-bounce time = DEBOUNCE/32 ms
De-bounce
Region
PWM WIDTH = 10
DEBOUNCE = 3
PWM THRESH = 6
RISE_DELAY_NUM = 2
De-bounce Region
DEBOUNCE = 6
FALL_DELAY_NUM = 1
Figure 18-5. PWM waveform with DEBOUNCE register value present
A21F0030
Bit
ACCDET_DEB ACCDET debounce1 register
OUNCE1
0000001
0
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
DEBOUNCE1
RW
0
0
0
0
0
1
0
0
0
0
Mne
Type
Reset
Bit
Mne
Type
Reset
0
0
0
0
0
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Overview
This register defines the waiting period before plug-in is considered stable. If the debounce setting is too small, the plug-in will be too sensitive and detect too many
unexpected plug-ins/outs or hook key press/release events. The suitable de-bounce time
setting must be adjusted according to the user's demand.
Bit(s) Mnemonic Name
Description
15:0 DEBOUNC DEBOUNCE1
E1
A21F0038
Bit
De-bounce time for plug-in event (control of the next
state = MIC State in Figure 1-2)
De-bounce time = DEBOUNCE/32 ms
ACCDET_DEB ACCDET debounce3 register
OUNCE3
0000001
0
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
DEBOUNCE3
RW
0
0
0
0
0
1
0
0
0
0
Mne
Type
Reset
Bit
Mne
Type
Reset
0
Overview
0
0
0
0
This register defines the waiting period before plug-out is considered stable. If the debounce setting is too small, the plug-out will be too sensitive and detect too many
unexpected plug-ins/outs or hook key press/release events. The suitable de-bounce time
setting must be adjusted according to the user's demand.
Bit(s) Mnemonic Name
Description
15:0 DEBOUNC DEBOUNCE3
E3
A21F003C
Bit
De-bounce time for plug-out event (control of the next
state = Standby State in Figure 1-2)
De-bounce time = DEBOUNCE/32 ms
ACCDET_IRQ_ ACCDET interrupt status register
STS
31
30
29
28
27
26
25
15
14
13
12
11
10
9
0000000
0
24
23
22
21
20
19
18
17
16
8
7
6
5
4
3
2
1
0
Mne
Type
Reset
Bit
IRQ_
CLR
RW
0
Mne
Type
Reset
Overview
IRQ
RO
0
When the interrupt of ACCDET is asserted, IRQ_CLR should be set to 1 to clear the
interrupt status. This bit will pause all activities in the ACCDET design until both interrupt
status and IRQ_CLR are cleared. The software should write 1 to IRQ_CLR first to clear the
interrupt (IRQ). After that, the software should read ACCDET_IRQ_STS again to make
IRQ_CLR self-reset to 0.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
8
IRQ_CLR IRQ_CLR
Clears interrupt status of ACCDET unit
0
IRQ
Interrupt status of ACCDET unit
Because this register will be cleared by hardware, the interrupt
edge-sensitive scheme should be adopted for this design.
A21F0040
Bit
IRQ
ACCDET_CUR ACCDET current input status register
R_IN
0000000
3
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Mne
Type
Reset
Bit
CURR_IN
RO
1
1
Mne
Type
Reset
Bit(s) Mnemonic Name
1:0
CURR_IN CURR_IN
A21F0044
Bit
Description
Current input status of ACCDET unit
ACCDET_SAM ACCDET sampled input status register
PLE_IN
0000000
3
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Mne
Type
Reset
Bit
SAMPLE_I
N
RO
1
1
Mne
Type
Reset
Bit(s) Mnemonic Name
1:0
SAMPLE_ SAMPLE_IN
IN
A21F0048
Bit
Description
31
Samples input status of ACCDET unit
When the plug-in/out/hook-key state is changed, the ACCDET
unit will do sampling.
ACCDET_MEM ACCDET memorized input status register
OIZED_IN
30
29
28
27
26
25
24
23
22
21
20
0000000
3
19
18
17
16
Mne
Type
Reset
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Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Mne
Type
Reset
Bit(s) Mnemonic Name
1:0
Description
MEMORIZ MEMORIZED_IN Memorized input status of ACCDET unit
ED_IN
When the plug-in/out/hook-key states is changed and held
longer than the de-bounce time, the ACCDET unit will save the
sampled input state to the memorized state. The interrupt will
also be asserted to acknowledge the software.
A21F004C
Bit
0
MEMORIZ
ED_IN
RO
1
1
ACCDET_LAST ACCDET Last memorized input status register
_MEMOIZED_
IN
0000000
3
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Mne
Type
Reset
Bit
LAST_ME
MORIZED
_IN
RO
1
1
Mne
Type
Reset
Bit(s) Mnemonic Name
1:0
LAST_ME LAST_MEMORI
MORIZED ZED_IN
_IN
A21F0050
Bit
Description
Last memorized input status of ACCDET unit
ACCDET_FSM ACCDET FSM status register
_STATE
0000000
0
31
30
29
28
27
26
25
24
23
22
21
20
19
15
14
13
12
11
10
9
8
7
6
5
4
3
18
17
16
2
1
0
Mne
Type
Reset
Bit
FSM_STATE
RO
0
0
0
Mne
Type
Reset
Bit(s) Mnemonic Name
2:0
FSM_STA FSM_SATE
TE
Description
State of ACCDET unit finite-state-machine
0: ACCDET_IDLE
1: ACCDET_SAMPLE
2: ACCDET_DEBOUNCE
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A21F0054
Bit
Description
3: ACCDET_CHECK
4: ACCDET_MEMORIZED
5: ACCDET_IRQ
ACCDET_CUR ACCDET current de-bounce status register
R_DEBOUNCE
31
30
29
28
27
26
15
14
13
12
11
10
0000000
4
25
24
23
22
21
20
19
18
17
16
9
8
7
6
5
4
3
2
1
0
CURR_DEBOUNCE
RO
0
0
0
0
0
1
0
0
0
0
Mne
Type
Reset
Bit
Mne
Type
Reset
0
0
0
0
0
Bit(s) Mnemonic Name
0
Description
15:0 CURR_DE CURR_DEBOUNC Currently used de-bounce time setting
BOUNCE E
ACCDET_VE
RSION
ACCDET version code
31
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
A21F0058
Bit
000000
03
17
16
1
0
Name
Type
Reset
Bit
ACCDET
_VERSIO
N
RO
1
1
Name
Type
Reset
Bit(s) Mnemon
ic
1:0
ACCDET
_VERSI
ON
A21F005C
Bit
31
Name
Description
ACCDET_VERS
ION
Version code for ACCDET
ACCDET_IN_
DEFAULT
Default value of accdet_in
30
27
29
28
26
25
24
23
0000000
0
22
21
20
19
18
17
16
Name
Type
Reset
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MT2523 Series Reference Manual
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
ACC
DET
_IN
_DE
FAU
LT_
REF
RES
H_E
N
RW
0
Name
Type
Reset
Overview
0
ACCDET_
IN_DEFA
ULT
RW
1
1
The default value of sample_accdet_in and memorised_accdet_in can be set by software
instead of using the default value set by hardware(i.e. 3).
ACCDET_DEFAULT_REFRESH_EN is the enable bit controlling whether to use this
additional function. The value of sample_accdet_in and memorized_accdet_in will change
when accdet_en rises from low to high. Note that if software reset is applied when
accdet_en is high, the default value of sample_accdet_in and memorized_accdet_in will
also be loaded when the software reset is de-asserted.
Bit(s) Mnemon
ic
Name
Description
4
ACCDET
_IN_DE
FAULT_
REFRES
H_EN
ACCDET_IN_D
EFAULT_REFR
ESH_EN
Enable signal for whether to load accdet_in_default
0: accdet_in_default will not be loaded.
1: accdet_in_default will be loaded.
1:0
ACCDET
_IN_DE
FAULT
ACCDET_IN_D
EFAULT
Default value of accdet_in set by software
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MT2523 Series Reference Manual
19. True Random Number Generator
19.1.
General Description
The True Random Number Generator (TRNG) is a device in power-down domain that generates random numbers
from a physical process. Figure 19-1 is the basic architecture. TRNG RO control FSM controls the flow of random
number generation. The randomness comes from the inter-operation between various ring oscillators of which the
output transition frequency is affected by PVT (process, voltage, temperature) variation. The utilized ring oscillator
includes Hybrid Fibonacci Ring Oscillator (H-FIRO), Hybrid Ring Oscillator (H-RO), and Hybrid Galois Ring
Oscillator (H-GARO). Von Neumann Extractor is used to balance the 0/1 occurrence of the random number. It
monitors two consecutively generated random bits to determine one valid output bit; the basic rules are
00drop, 011, 100, 11drop. Error detection block detects if the execution time exceeds the timeout limit
while enabling the Von Neumann extractor. IRQ will be issued when random number is successfully generated or
timeout error occurs. Note that the generated random number is for one-time use only. Once the generated
random data are acquired by CPU, TRNG data will be reset to 0. Furthermore, TRNG also supports freerun mode
which turns on the ring oscillator constantly to interfere the supply voltage for security purpose.
19.1.1.
Block Diagram
Figure 19-1. TRNG architecture
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Figure 19-2. H-FIRO architecture
Figure 19-3. H-RO and H-GARO architecture
The polynomial used by TRNG is x15 + x14 + x7 + x6 + x5 + x4 + x2 +1. The RO operation is as the following:
1.
Inner RO is closed and starts oscillating.
2.
Inner RO is opened and in an unpredictable state. Outer RO is closed and starts oscillating.
3.
Sample the RO data as TRNG data.
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Figure 19-4. TRNG operation flow
19.2.
Register Definition
TRNG control/status registers are available over APB interface. The corresponding address map is as the following.
Module name: TRNG Base address: (+A0010000h)
Address
Name
Width Register Function
A0010000
TRNG_CTRL
32
TRNG Control Register
This register controls the TRNG FSM.
A0010004
TRNG_TIME
32
TRNG Time Register
This register controls the timing of internal FSM.
A0010008
TRNG_DATA
32
TRNG Data Register
This register stores the random data.
A001000C
TRNG_CONF
32
TRNG Configure Register
This register configures ROs, extractor setting.
A0010010
TRNG_INT_SET
32
Interrupt Setting Register
This register stores the IRQ status.
A0010014
TRNG_INT_CLR
32
Interrupt Clean Register
This register clears the IRQ status.
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MT2523 Series Reference Manual
A0010000
TRNG_CTRL
Bit
31
Name TRNG
Type
Reset
Bit
Name
_RDY
RO
0
15
TRNG Control Register
00000000
30
29
28
27
26
25
24
23
22
21
20
19
18
14
13
12
11
10
9
8
7
6
5
4
3
2
Name
Description
31
TRNG_RDY
Indicates whether the TRNG data are ready or not (software polling)
0: Random data are not ready.
1: Random data are ready.
1
TRNF_FREERUN
0
TRNG_START
Turns on freerun (interference) mode
0: Disable freerun
1: Enable freerun
Starts/terminates random number generation
0: Stop generation
1: Start generation
A0010004
Bit
Name
Type
Reset
Bit
Name
Type
Reset
16
1
0
TRNG TRNG
_FREE _STAR
RUN
T
RW
RW
0
0
Type
Reset
Bit(s)
17
TRNG_TIME
31
30
0
0
15
14
0
0
29
TRNG Time Register
28
27
0
SAMPLE_CNT
RW
0
0
0
LATCH_CNT
RW
0
1
13
12
11
26
0
10
0
25
00000000
24
1
1
9
8
0
0
23
0
7
0
22
0
6
0
21
20
19
0
UNGATE_CNT
RW
0
1
0
SYSCLK_CNT
RW
0
0
5
4
3
18
17
1
16
1
1
2
1
0
0
0
1
Bit(s)
Name
Description
31:24
SAMPLE_CNT
Controls sampling time of TRNG data. Counted by TRNG SYSCLK.
23:16
UNGATE_CNT
Controls interval of TRNG inverter ungating time. Counted by TRNG SYSCLK.
15:8
LATCH_CNT
Controls interval of TRNG inverter latching time. Counted by TRNG SYSCLK.
7:0
SYSCLK_CNT
Controls frequency of TRNG SYSCLK. Counted by system bus clock (TRNG_SYSCLK =
SYSTEM_BUS_CLOCK/ SYSCLK_CNT)
A0010008
Bit
Name
Type
Reset
Bit
Name
Type
Reset
TRNG_DATA
31
30
0
0
15
14
0
0
29
TRNG Data Register
28
0
13
0
0
12
0
27
0
11
0
26
0
10
0
25
22
21
20
19
18
17
0
DATA[31:16]
RO
0
0
0
0
0
0
0
0
1
0
0
DATA[15:0]
RO
0
0
0
0
0
0
0
0
0
9
Bit(s)
Name
Description
31:0
DATA
Generated random data
A001000C
TRNG_CONF
00000000
24
8
23
7
6
5
4
3
2
TRNG Configure Register
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0
0001001C
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MT2523 Series Reference Manual
Bit
31
Name FR_IR
Type
Reset
Bit
Name
Q_EN
RW
0
15
31
17:6
5
14
29
13
28
12
27
26
11
10
25
9
24
8
23
22
7
0
0
0
0
0
RW
0
0
0
0
TIMEOUT_LIMIT
Enables ring oscillator
Bit[0] = 1: Enable H-FIRO
Bit[1] = 1: Enable H-RO
Bit[2] = 1: Enable H-GARO
1:0
RO_OUT_SEL
Selects which RO to connect to debug out
2'b00: H-FIRO
2'b01: H-RO
2'b10: H-GARO
A0010010
Bit
Name
Type
Reset
Bit
Name
Type
Reset
RW
1
31
30
0
0
15
14
0
0
29
0
13
0
28
0
12
0
27
0
11
0
26
0
10
0
1
1
25
24
22
21
20
19
18
17
0
INT[31:16]
RO
0
0
0
0
0
0
0
0
1
0
0
INT[15:0]
RO
0
0
0
0
0
0
0
0
0
9
8
23
7
6
5
Description
INT
IRQ status
Bit [0] = 1: Successful random number generation
Bit [1] = 1: Timeout error
4
3
2
TRNG_INT_CLR Interrupt Clean Register
0
15
0
30
0
14
0
29
0
13
0
28
0
12
0
27
0
11
0
26
0
10
0
0
00000000
Name
31
16
RO_OUT_SE
L
RW
0
0
TRNG_INT_SET Interrupt Setting Register
A0010014
31:0
2
RO_EN
1
17
TIMEOUT_LI
MIT[11:10]
RW
0
1
1: Enable IRQ during freerun mode
0: Disable IRQ during freerun mode
Configures sampling times limit when extractor is enabled
If the limit is exceeded, it will issue timeout error interrupt and turn off TRNG.
RO_EN
Bit(s)
3
18
Description
4:2
Bit
Name
Type
Reset
Bit
Name
Type
Reset
0
4
19
FR_IRQ_EN
1: Turn on Von-Neumann extractor
0: Turn off Von-Neumann extractor
31:0
5
VON_
EN
RW
0
20
Name
VON_EN
Bit(s)
21
6
TIMEOUT_LIMIT[9:0]
Type
Reset
Bit(s)
30
16
0
00000000
25
24
22
21
20
19
18
17
0
CLR[31:16]
RW
0
0
0
0
0
0
0
0
1
0
0
CLR[15:0]
RW
0
0
0
0
0
0
0
0
0
9
8
23
7
6
Name
Description
CLR
Clears IRQ status by setting register to 0x0
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4
3
2
16
0
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MT2523 Series Reference Manual
19.3.
Programming Guide
1.
Enable TRNG_CG_CLOCK.
2.
Set TRNG_TIME to a proper latch/sampling period with respect to system bus clock (e.g. 0x08030F01).
3.
Set TRNG_CONF TIMEOUT_LIMIT (e.g. 0xFFF).
4.
Set TRNG_CONF RO_EN value (e.g. 0x7).
5.
Set TRNG_CTRL[0] to 1 to start TRNG
6.
Wait for IRQ or poll TRNG_CTRL[31] (TRNG_RDY).
7.
Read TRNG_INT_SET to check IRQ status (bit[0] = 1: successful; bit[1] = 1: timeout ).
8.
Set TRNG_INT_CLR to 0x0 to clear IRQ status.
9.
Set TRNG_CTRL[0] to 0 to stop TRNG.
10. If timeout, go to step 5 to regenerate random numbers.
11. If the generation is successful, read TRNG_DATA to get 32-bit random data.
12. Disable TRNG_CG_CLOCK.
Note that TRNG_TIME and TRNG_CONF (except for RO_OUT_SEL) can only be configured when TRNG is idle
(TRNG_CTRL [0] = 0). Furthermore, if timeout occurs, TRNG will terminate the generation process until the user
restarts TRNG.
G2D_L0_SRC
KEY
G2D+0094h G2D Layer 0 Source Key
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
6
5
4
3
2
1
0
SRCKEY[31:16]
R/W
0
15
14
13
12
11
10
9
8
7
SRCKEY[15:0]
R/W
0
SRCKEY If SKEY_EN is enabled, this field represents source key color. If FONT_EN is enabled, this
filed represents foreground color. If RECT_EN is enabled, this field represents the constant color for
rectangle fill. The color format is the same as CLRFMT in G2D_L0_CON.
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MT2523 Series Reference Manual
20. Audio Front End
20.1.
General Description
The audio front end (AFE) essentially consists of voice and audio data paths. All voice band data paths comply with
the GSM 03.50 specification. Mono hands-free audio or external FM radio playback paths are also provided. The
audio stereo path facilitates CD-quality playback, external FM radio, and voice playback through a headset.
Figure 1-1 is the digital circuits block diagram of the audio front-end. The APB register block is an APB peripheral
that stores settings from the MCU. The DSP audio port (DAP) block interfaces with the DSP for control and data
communications. The digital filter block performs filter operations for voice band and audio band signal processing.
The Digital Audio Interface (DAI) block communicates with the system simulator for FTA or external Bluetooth
modules.
DAI/BT
APB
Registers
64k
6.5M
8/16K
Uplink
DF
ADC
DF
IF
DSP processor
Voice UL : down 4X/8X
Voice DL: up8X
Audio DL: up 8X
A/V
DAC
SDM
6.5MHz
1st order
SRC
6.5MHz
DSP
2X
16X
8X
Downlink
8~48K
Figure 20-1. Block diagram of digital circuits of the audio front-end
To communicate with the external Bluetooth module, the master-mode PCM interface and master-mode I2S/EIAJ
interface are supported. The clock of PCM interface is 256kHz while the frame sync is 8kHz. Both long sync and
short sync interfaces are supported. The PCM interface can transmit 16-bit stereo or 32-bit mono 8kHz sampling
rate voice signal. Figure 20-2 is the timing diagram of the PCM interface. Note that the serial data changes when
the clock is rising and is latched when the clock is falling. Figure 20-3 shows the timing diagram of different clock
rate PCM interface; the clock rate can be configured to 1x/2x/4x/8x of the original clock rate.
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MT2523 Series Reference Manual
dai_clk
bt_sync(s)
bt_sync(l)
dai_tx
3
2
1
0
31
30
29
28
27
26 25
24
23
22
dai_rx
3
2
1
0
31
30
29
28
27
26 25
24
23
22
Figure 20-2. Timing diagram of Bluetooth application
Figure 20-3. Timing diagram of different clock rate Bluetooth application
I2S/EIAJ interface is designed to transmit high quality audio data. Figure 20-4 and Figure 20-5 illustrate the timing
diagram of the two types of interfaces. I2S/EIAJ can support 32 kHz, 44.1 kHz, and 48 kHz sampling rate audio
signals. The clock frequency of I2S/EIAJ can be 32×(sampling frequency), or 64×(sampling frequency). For
example, to transmit a 44.1 kHz CD-quality music, the clock frequency should be 32 × 44.1 kHz = 1.4112 MHz or 64
× 44.1 kHz = 2.8224 MHz.
I2S/EIAJ interface is not only used for Bluetooth module, but also for external DAC components. Audio data can
easily be sent to the external DAC through the I2S/EIAJ interface.
In this document, the I2S/EIAJ interface is referred to as EDI (External DAC Interface).
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MT2523 Series Reference Manual
EDI_CLK
EDI_WS
EDI_DAT
Left Channel
6
5
4
3
2
1
0
15
14
13
11
12
10
9
8
7
Right Channel
6
5
4
3
2
1
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
15
14
13
7
6
5
4
3
2
1
0
15
14
13
Figure 20-4. EDI Format 1: EIAJ (FMT = 0)
EDI_CLK
EDI_WS
EDI_DAT
Left Channel
6
5
4
3
2
1
0
15
14
13
12
11
10
9
8
Right Channel
7
6
5
4
3
2
1
0
15
14
13
12
11
10
9
8
Figure 20-5. EDI Format 1: I2S (FMT = 1)
20.2.
Register Definition
Registers in audio front-end are listed as the following.
Module name: AFE_A63260 Base address: (+82CD0000h)
Address
Name
AFE_VMCU_CON0
Width
16
AFE Voice MCU Control Register
A synchronous reset signal is issued before periodical interrupts of 8kHz frequency are issued. Clearing this register will stop the interrupt
generation.
AFE_VMCU_CON1
AFE_VMCU_CON2
16
16
AFE Voice MCU Control Register 1
82CD0010
82CD0014
AFE_VDB_CON
16
AFE Voice DAI Bluetooth Control Register
Set up this register for DAI test mode and Bluetooth application.
82CD0018
AFE_VLB_CON
16
AFE Voice Loopback Mode Control Register
Set up this register for AFE voice digital circuit configuration control.
Several loop back modes are implemented for test purposes. Default
values correspond to the normal function mode.
82CD001C
AFE_VMCU_CON3
16
AFE Voice MCU Control Register 3
Set up this register for voice settings.
82CD0020
AFE_AMCU_CON0
16
AFE Audio MCU Control Register 0
A synchronous reset signal is issued before periodical interrupts of
1/6 sampling frequency are issued. Clearing this register will stop the
interrupt generation.
82CD0024
AFE_AMCU_CON1
16
AFE Audio MCU Control Register 1
MCU sets up this register to inform hardware of the sampling
frequency of audio being played back.
82CD0028
AFE_EDI_CON
16
AFE EDI Control Register
This register is used to control the EDI.
82CD002C
AFE_AMCU_CON2
16
AFE Audio Control Register 2
Set up this register for consistency of analog circuit setting.
Suggested value: 0x3c
82CD0000
82CD000C
Register Function
AFE Voice MCU Control Register 2
Set up this register for consistency of analog circuit setting.
Suggested value: 0x003c
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MT2523 Series Reference Manual
82CD0030
AFE_DAC_TEST
16
Audio/Voice DAC SineWave Generator
This register is only for analog design verification on audio/voice
DACs.
82CD0034
AFE_VAM_SET
AFE_AMCU_CON3
16
Audio/Voice Interactive Mode Setting
82CD0038
16
AFE Audio Control Register 3
Set up this register for A2 parameter of pre-distortion.
82CD003C
AFE_AMCU_CON4
16
AFE Audio Control Register 4
Set up this register for A3 parameter of pre-distortion.
82CD0040
16
16
AFE DC Compensation Debug Register 1
16
16
AFE DC Compensation Debug Register 3
16
AFE Checksum Register 1
82CD0148
AFE_DC_DBG_1
AFE_DC_DBG_2
AFE_DC_DBG_3
AFE_ACHECK_SUM
_R
AFE_ACHECK_SUM
_L
AFE_MUTE_STA
16
AFE Mute Status Register
This register indicates the current mute status.
82CD0180
AFE_AMCU_CON5
16
AFE Audio MCU Control Register 5
This register sets up audio SDM selection in normal mode.
82CD0184
AFE_AMCU_CON6
16
AFE Audio MCU Control Register 6
Set up this register for audio right channel dc offset value
cancellation.
82CD0188
AFE_AMCU_CON7
16
AFE Audio MCU Control Register 7
Set up this register for audio left channel dc offset value cancellation.
82CD0190
AFE_DBG_RD_PRE
16
AFE MCU Debug Mode Reading SRAM Out
This register reads memory content from AFE SRAM in debug mode.
It can only work when debug mode register pulls high.
82CD0194
AFE_DBG_MD_CON
0
16
AFE Debug Mode Control Register 0
Set up this register to start debug mode; the debug done signal will
return in the same register.
82CD0198
AFE_DBG_MD_CON
1
16
AFE Debug Mode Control Register 1
This register reads memory content from AFE SRAM in debug mode.
It can only work when debug mode register pulls high.
82CD019C
AFE_DBG_APB_STA
TUS
16
AFE MCU Status Register
This register reads the status when writing/reading SRAM data or
debugging.
82CD01A0
AFE_VMCU_CON4
16
AFE Voice MCU Control Register 4
Set up this register for DC offset value cancellation.
82CD01CC
AFE_CMPR_CNTR
16
AFE Compare Counter Control Register
Compares counter control
82CD01E0
AFE_DBG_RD_DAT
24
AFE Debug Mode - Reading SRAM Data
When user reads memory data from memory in debug mode, the data
will be here. Before read, make sure the read status is ok for read.
82CD01E4
AFE_APBMEM_RD_
DAT
24
AFE MCU Reading SRAM Data
This register reads memory content from AFE SRAM. If the read
address is AFE_BASE + 1518~153C, this register will output IIR
coefficient.
Before read, make sure the read status is ok for read.
82CD01E8
AFE_APBMEM_RD
16
AFE MCU Read SRAM Request
Reads AFE SRAM data from MCU
82CD01EC
AFE_PC_1X_IDX
AFE_DBG_SIG
16
16
AFE Program 1X IDX
82CD01F0
82CD01F4
AFE_PC_OUT_DBG
16
AFE Program PC Address
82CD0044
82CD0048
82CD0140
82CD0144
AFE DC Compensation Debug Register 2
AFE Checksum Register 0
AFE 8X/Buffer/Mux Debug
Debug mode signals in AFE hardware
Bit [5:4] is aafe_on/vafe_on align 1x_enable signal; used for debug
mode
Bit [3:0] is debug signal of AFE 8X buffer.
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MT2523 Series Reference Manual
16
16
DBG_1XDAT
82CD0210
AFE_DBG_1XDAT
AFE_COSIM_RG
AFE_MCU_CON0
16
AFE MCU CON0
AFE top control register; turns on/off enable generation
82CD0214
AFE_MCU_CON1
16
AFE MCU CON1
AFE data path control register; turns on/off udsp and a_interface
82CD01F8
82CD0200
82CD000
0
Bit
Name
15
AFE_VMCU_
CON0
14
13
12
AFE COSIM RG Test
AFE Voice MCU Control Register
11
10
9
8
7
6
0000
5
4
3
2
1
Type
Reset
Bit(s)
Mnemoni
c
0
82CD000
C
Bit
Nam
e
15
Name
Description
VIRQON
Turns on 8k interrupt
0: Turn off
1: Turn on
AFE_VMCU_
CON1
14
13
Type
Reset
Bit(s)
Mnemoni
c
12
DU
AL
_M
IC
RW
0
AFE Voice MCU Control Register 1
11
10
VM
OD
E32
K
RW
0
9
VM
OD
E4
K
RW
1
8
7
6
5
12
DUAL_MIC
Dual mic control
0: Signal mic
1: Dual mic
10
VMODE32K
Configures uplink 32K recording
0: See vmode4K RG
1: 32K sample rate
9
VMODE4K
Selects DSP data mode
0: 8K inband
1: 4K inband
7
VRSDON
SDM level for VBITX (uplink)
0: 2 levels
1: 3 levels
Bit
Name
15
VD
C_
CO
MP
_E
14
13
12
4
3
2
1
AFE Voice MCU Control Register 2
11
VT
X_
CK
_P
HA
10
9
0
RW
0
Description
AFE_VMCU_
CON2
0200
VR
SD
ON
Name
82CD0010
0
VIR
QO
N
RW
0
8
7
6
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5
003C
4
3
2
1
0
VSDM_GAIN
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Type
Reset
Bit(s)
N
RW
0
SE
RW
0
Mnemoni
c
1
1
1
RW
1
0
0
Name
Description
15
VDC_COMP_EN
Enables DC offset compensation
0: Disable
1: Enable
11
VTX_CK_PHASE
Selects phase selection for clock to analog
0: Clock changes at data falling edge.
1: Clock changes at data rising edge.
5:0
VSDM_GAIN
Gain settings at voice SDM input. Suggested value: 0x3c (60/64).
Other SDM gain settings may cause performance degradation.
000000: 0/64
000001: 1/64
111111: 63/64
82CD001C
Bit
Nam
e
15
AFE_VMCU_
CON3
14
13
12
AFE Voice MCU Control Register 3
11
10
9
Type
Reset
Bit(s)
8
7
6
SD
ML
P_
UL
TO
DL
RW
0
Mnemoni
c
5
VS
DM
_D
AT
A_
MO
NO
RW
0
0000
4
3
2
RW
0
RW
0
Description
8
SDMLP_ULTODL
UL sigma delta data loopback to DL sigma delta data
0: Disable
1: Enable
5
VSDM_DATA_MON
O
Rch output data = Lch outut data
0: Disable
1: Enable
4
SDMLP_DLTOUL
DL sigma delta data loopback to UL sigma delta data
0: Disable
1: Enable
0
SDM_CK_PHASE
Selects phase of SDM clock
0: Clock changes at data falling edge.
1: Clock changes at data rising edge.
AFE_VMCU_
CON4
Bit
Name
Type
Reset
Bit(s)
15:0
AFE Voice MCU Control Register 4
15
14
13
12
11
10
0
0
0
0
0
0
Mnemoni
c
9
8
7
6
DC_OFFSET_VALUE
RW
0
0
0
0
0000
5
4
3
2
1
0
0
0
0
0
0
0
Name
Description
DC_OFFSET_VALU
E
Set up this register for DC offset value cancellation.
© 2015 - 2018 Airoha Technology Corp.
0
SD
M_
CK
_P
HA
SE
Name
82CD01A
0
1
SD
ML
P_
DL
TO
UL
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MT2523 Series Reference Manual
AFE_VMCU_
CON5
82CD01A
C
Bit
Nam
e
15
14
12
LCH_PHASE
Type
Reset
Bit(s)
13
AFE Voice MCU Control Register 5
11
RW
011
Mnemoni
c
10
RCH_PHASE
RW
111
9
CK
_P
HA
SE
RW
0
8
7
6
5
0000
4
DIG
MI
C_
EN
RW
0
3
2
1
0
3P2
5M
_SE
L
RW
0
Name
Description
15:13
LCH_PHASE
Selects digital mic LCH data phase from phase 0~phase 7
12:10
RCH_PHASE
Selects digital mic RCH data phase from phase 0~phase 7
9
CK_PHASE
Selects digital mic clock latch phase (option since the L/R phase can
select)
4
DIG_MIC_EN
Enables digital mic
0: Enable analog mic
1: Enable digital mic
0
D3P25M_SEL
Selects digital mic sample rate
0: 1.625M
1: 3.25M
82CD0014
Bit
Nam
e
Type
Reset
Bit(s)
AFE_VDB_C
ON
15
14
PCM_CK_
MODE
0
RW
0
12
VB
T_L
OO
P_
BA
CK
RW
0
11
10
9
8
7
6
0000
5
4
3
VB
T_L
OO
P
VD
AIO
N
VB
TO
N
VB
TSY
NC
RW
0
RW
0
RW
0
RW
0
2
1
0
Description
PCM_CK_MODE
Pcm clock (dai_clk) rate mode
00: 1x, dai_clk rate = dai_tx bit rate (8k*32-bit = 256kHz)
01: 2x, dai_clk rate = 2*dai_tx bit rate (512kHz)
10: 4x, dai_clk rate = 4*dai_tx bit rate (1024kHz)
11: 8x, dai_clk rate = 8*dai_tx bit rate (2048kHz)
12
VBT_LOOP_BACK
Loop back test for DAI/BT interface. DAI_TX = DAI_RX
0: No loopback
1: Loopback
10
VBT_LOOP
Loop back test for DAI/BT interface
If true, dai_rx_tmp = dai_tx
0: No loopback
1: Loopback
5
VDAION
Turns on DAI function
4
VBTON
Turns on Bluetooth PCM function
3
VBTSYNC
Bluetooth PCM frame sync type
0: Short sync
1: Long sync
2:0
VBTSLEN
Bluetooth PCM long frame sync length = VBTSLEN+1
© 2015 - 2018 Airoha Technology Corp.
0
VBTSLEN
Name
15:14
Mnemoni
c
13
AFE Voice DAI Bluetooth Control Register
RW
0
0
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MT2523 Series Reference Manual
82CD0018
Bit
Nam
e
15
AFE_VLB_C
ON
14
13
AFE Voice Loopback Mode Control Register
12
11
10
9
8
Type
Reset
Bit(s)
Mnemoni
c
7
EN
GE
N_
OP
T
RW
0
6
VIN
TIN
SEL
RW
0
5
VD
SP
BY
PA
SS
RW
0
4
VD
SPC
SM
OD
E
RW
0
0000
3
VD
API
N_
CH
1
RW
0
2
VD
API
N_
CH
0
RW
0
1
VIN
TIN
MO
DE
RW
0
Name
Description
7
ENGEN_OPT
engen generator option
0: Origin engen
1: New engen option
6
VINTINSEL
Selects DL data when VINTINMODE = 1
0: 1st voice uplink input
1: 2nd voice uplink input
5
VDSPBYPASS
Loopback data will not be gated by VDSPRDY.
0: Normal mode
1: Bypass DSP loopback mode
4
VDSPCSMODE
DSP COSIM only, to align DATA
0: Normal mode
1: Cosim mode
3
VDAPIN_CH1
MODEMSIM voice loopback control
Uplink1 data = downlink data loopback
0: Normal mode
1: Loopback mode
2
VDAPIN_CH0
MODEMSIM voice loopback control
Uplink0 data = downlink data loopback
0: Normal mode
1: Loopback mode
1
VINTINMODE
Downlink data = uplink data
0: Normal mode
1: Loopback mode
0
VDECINMODE
Decimator input mode control
Downlink output data are looped back to uplink through internal SDM.
0: Normal mode
1: Loopback mode
AFE_SLV_I2
S_CON
82CD030
0
Bit
Nam
e
Type
Reset
Bit
Nam
e
31
30
SL
V_I
2S_
EN
AF
E_
FO
C_
EN
RW
0
RW
0
15
14
29
13
SLV_I2S_MODE
28
12
AFE Slave I2S Control Register
27
11
26
10
25
9
24
8
23
7
22
6
© 2015 - 2018 Airoha Technology Corp.
0
VD
ECI
NM
OD
E
RW
0
000000
00
21
5
20
4
19
3
18
SLV
_I2
S_B
IT_
SW
AP
RW
0
2
17
16
SL
V_I
2S_
BY
PA
SS_
SR
C
RW
0
SLV
_I2
S_2
CH
_SE
L
SL
V_I
2S_
FM
T
SLV
_I2
S_P
CM
_SE
1
RW
0
0
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MT2523 Series Reference Manual
Type
Reset
Bit(s)
R/W
0
Mnemoni
c
RW
0
L
RW
0
Name
Description
31
SLV_I2S_EN
Enables slave I2S
0: Disable
1: Enable
30
AFE_FOC_EN
Enables SRC function in slave I2S
0: Disable
1: Enable
18
SLV_I2S_BIT_SWA
P
Swaps MSB 16 bits and LSB 16 bits. For backup control, keep 0 in
default.
0: No swap
1: Swap
17
SLV_I2S_BYPASS_
SRC
Bypasses SRC function in slave I2S. For backup control, keep 0 in
default.
0: No bypass
1: Bypass SRC
16
SLV_I2S_2CH_SEL
Slave I2S nomo or stereo mode. For backup control, keep 0 in
default.
0: Speech mode, RCH = LCH data
1: Stereo mode
SLV_I2S_MODE
Sampling frequency setting; only 8kHz and 16kHz are useful.
Others reserved
0000: 8kHz
0001: 11.025kHz
0010: 12kHz
0100: 16kHz
0101: 22.05kHz
0110: 24kHz
1000: 32kHz
1001: 44.1kHz
1010: 48kHz
1
SLV_I2S_FMT
EDI format
0: EIAJ
1: I2S
0
SLV_I2S_PCM_SEL
Selects PCM or slave I2S
UL: PCM FIFO data from PCM or slave I2S
DL: DSP output data to PCM or slave I2S
0: PCM
1: Slave I2S
15:12
82CD0310
Bit
Nam
e
Type
Reset
Bit(s)
15
15
AFE_FOC_T
X_CON0
14
FR
EQ
_ES
T_
MO
DE
N_
STE
P_
MO
DE
R/
W
0
R/
W
1
Mnemoni
c
13
12
AFE Slave I2S TX FOC Control Register 0
11
10
9
STEP_EST_UPDATE_LV
8
R/W
011010
7
6
5
4
5a00
3
2
1
0
MON
STE
P_
LI
M_
MO
DE
PT
R_
TA
RA
CK
_E
M
RW
RW
RW
RW
0000
0
0
0
Name
Description
FREQ_EST_MODE
Frequency offset estimation mode
© 2015 - 2018 Airoha Technology Corp.
RT
_E
N
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MT2523 Series Reference Manual
0: In 512 cycles
1: In 1024 cycles
N_STEP_MODE
Controls the reference for step_change
0: Refer to step
1: Refer to step_target
13:8
STEP_EST_UPDAT
E_LV
Controls step update threshold for frequency tracking
0~63
7:4
MON
Selects data monitor
Only used in debug mode. Keep at 0000 in normal mode.
3
STEP_LIM_MODE
Controls maximum tracking frequency offset
0: 270 ppm
1: 540 ppm
2
PTR_TRACK_EN
Controls the enable signal to tracking frequency when pointer
difference changes
0: Disable
1: Enable
0
FT_EN
Controls the enable signals for frequency tracking
Note: Remember to open SRC and I2S before starting frequency tracking.
0: No frequency tracking
1: Frequency tracking on
14
82CD0314
Bit
Nam
e
Type
Reset
Bit(s)
15
MA
NU
AL
R/
W
0
AFE_FOC_T
X_CON1
14
13
Mnemoni
c
Name
STEP_MANUAL
15
9
8
7
6
5
STEP_MANUAL
4
3
2
1
0
Description
MANUAL
82CD0318
10
0_0000_0000_0000
12:0
Bit(s)
11
0000
RW
15
Bit
Nam
e
Type
Reset
12
AFE Slave I2S TX FOC Control Register 1
AFE_FOC_T
X_CON2
14
13
12
Controls frequency tracking mode
0: Auto-tracking
1: Manual mode
step_manual = frequency offset (ppm)/step_ini.
AFE Slave I2S TX FOC Control Register 2
11
10
9
8
7
6
5
4
1589
3
2
1
0
N_STEP_JUMP_CON3
N_STEP_JUMP_CON2
N_STEP_JUMP_CON1
N_STEP_JUMP_CON0
R/W
0001
R/W
0101
R/W
1000
R/W
1001
Mnemoni
c
Name
Description
15:12
N_STEP_JUMP_CO
N3
Controls input samples to change step when step change is larger
than power (2, step_change_con3)
11:8
N_STEP_JUMP_CO
N2
Controls input samples to change step when step change is smaller
than power (2, step_change_con2)
7:4
N_STEP_JUMP_CO
N1
Controls input samples to change step when step change is smaller
than power (2, step_change_con1)
3:0
N_STEP_JUMP_CO
N0
Controls input samples to change step when step change is smaller
than power (2, step_change_con0)
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
82CD031C
AFE_FOC_T
X_CON3
Bit
Nam
e
Type
Reset
15
Bit(s)
Mnemoni
c
14
11
10
Name
9
8
7
6
5
4
STEP_CHANGE_CON0
3
2
1
0
Description
Controls boundary between N_STEP_JUMP0 and N_STEP_JUMP1
STEP_CHANGE_CO
N0
AFE_FOC_T
X_CON4
82CD032
0
Bit
Nam
e
Type
Reset
15
Bit(s)
Mnemoni
c
14
13
12
AFE Slave I2S TX FOC Control Register 4
11
10
9
8
7
6
5
0067
4
STEP_CHANGE_CON1
3
2
1
0
R/W
000_0110_0111
10:0
Name
Description
Controls boundary between N_STEP_JUMP1 and N_STEP_JUMP2
STEP_CHANGE_CO
N1
AFE_FOC_T
X_CON5
82CD032
4
Bit
Nam
e
Type
Reset
15
Bit(s)
Mnemoni
c
14
13
12
AFE Slave I2S TX FOC Control Register 5
11
10
9
8
7
6
5
4
019a
STEP_CHANGE_CON2
3
2
1
0
R/W
001_1001_1010
10:0
Name
Description
STEP_CHANGE_CO
N2
AFE_FOC_R
X_CON0
82CD033
0
Type
12
0034
R/W
000_0011_0100
10:0
Bit
Nam
e
13
AFE Slave I2S TX FOC Control Register 3
15
14
FR
EQ
_ES
T_
MO
DE
N_
STE
P_
MO
DE
R/
W
R/
W
13
12
Controls boundary between N_STEP_JUMP2 and N_STEP_JUMP3
AFE Slave I2S RX FOC Control Register 0
11
10
9
STEP_EST_UPDATE_LV
R/W
8
7
6
5
4
5a00
3
2
MON
STE
P_
LI
M_
MO
DE
PT
R_
TA
RA
CK
_E
M
RW
RW
RW
© 2015 - 2018 Airoha Technology Corp.
1
0
RT
_E
N
RW
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MT2523 Series Reference Manual
Reset
Bit(s)
0
1
011010
Mnemoni
c
0000
0
0
0
Name
Description
15
FREQ_EST_MODE
Frequency offset estimation mode
0: In 512 cycles
1: In 1024 cycles
14
N_STEP_MODE
Controls reference for step_change.
0: Refer to step
1: Refer to step_target
13:8
STEP_EST_UPDAT
E_LV
Controls step update threshold for frequency tracking
0~63
7:4
MON
Selects data monitor
Only used in debug mode. Keep 0000 in normal mode.
3
STEP_LIM_MODE
This bit controls the maximum tracking frequency offset.
0: 270 ppm
1: 540 ppm
2
PTR_TRACK_EN
Controls the enable signal to tracking frequency when pointer
difference changes
0: Disable
1: Enable
0
FT_EN
Controls the enable signals for frequency tracking
Note: Remember to open SRC and I2S before starting frequency tracking.
0: No frequency tracking
1: Frequency tracking on
AFE_FOC_R
X_CON1
82CD033
4
Bit
Nam
e
Type
Reset
Bit(s)
15
MA
NU
AL
R/
W
0
14
11
Mnemoni
c
Name
STEP_MANUAL
AFE_FOC_R
X_CON2
15
9
8
7
6
5
STEP_MANUAL
4
3
2
1
0
Description
MANUAL
82CD033
8
10
0_0000_0000_0000
12:0
Bit(s)
12
0000
RW
15
Bit
Nam
e
Type
Reset
13
AFE Slave I2S RX FOC Control Register 1
14
13
12
Controls frequency tracking mode
0: Auto-tracking
1: Manual mode
step_manual = frequency offset (ppm)/step_ini.
AFE Slave I2S RX FOC Control Register 2
11
10
9
8
7
6
5
4
1589
3
2
1
0
N_STEP_JUMP_CON3
N_STEP_JUMP_CON2
N_STEP_JUMP_CON1
N_STEP_JUMP_CON0
R/W
0001
R/W
0101
R/W
1000
R/W
1001
Mnemoni
c
Name
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
15:12
N_STEP_JUMP_CO
N3
Controls input samples to change step when step change is larger
than power (2, step_change_con3)
11:8
N_STEP_JUMP_CO
N2
Controls input samples to change step when step change is smaller
than power (2, step_change_con2)
7:4
N_STEP_JUMP_CO
N1
Controls input samples to change step when step change is smaller
than power (2, step_change_con1)
3:0
N_STEP_JUMP_CO
N0
Controls input samples to change step when step change is smaller
than power (2, step_change_con0)
AFE_FOC_R
X_CON3
82CD033
C
Bit
Nam
e
Type
Reset
15
Bit(s)
Mnemoni
c
14
12
11
10
9
8
7
6
5
4
STEP_CHANGE_CON0
0034
3
2
1
0
R/W
000_0011_0100
10:0
Name
Description
STEP_CHANGE_CO
N0
82CD034
0
AFE_FOC_R
X_CON4
Bit
Nam
e
Type
Reset
15
Bit(s)
Mnemoni
c
14
13
12
Controls boundary between N_STEP_JUMP0 and N_STEP_JUMP1
AFE Slave I2S RX FOC Control Register 4
11
10
9
8
7
6
5
4
STEP_CHANGE_CON1
0067
3
2
1
0
R/W
000_0110_0111
10:0
Name
Description
STEP_CHANGE_CO
N1
82CD034
4
AFE_FOC_R
X_CON5
Bit
Nam
e
Type
Reset
15
Bit(s)
Mnemoni
c
10:0
13
AFE Slave I2S RX FOC Control Register 3
14
13
12
Controls boundary between N_STEP_JUMP1 and N_STEP_JUMP2
AFE Slave I2S RX FOC Control Register 5
11
10
9
8
7
6
5
4
STEP_CHANGE_CON2
019a
3
2
1
0
R/W
001_1001_1010
Name
Description
STEP_CHANGE_CO
N2
Controls boundary between N_STEP_JUMP2 and N_STEP_JUMP3
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
82CD002
0
Bit
Name
15
AFE_AMCU_
CON0
14
13
12
AFE Audio MCU Control Register 0
11
10
9
8
7
6
0000
5
4
3
2
1
0
AIR
QO
N
RW
0
Type
Reset
Bit(s)
Mnemoni
c
0
82CD002
4
Bit
Nam
e
Type
Reset
Bit(s)
15
Name
Description
AIRQON
Turns on audio interrupt operation
0: Turn off
1: Turn on
AFE_AMCU_
CON1
14
13
MO
NO
_SE
L
RW
0
Mnemoni
c
12
i2s
_1x
out
_se
l
RW
0
AFE Audio MCU Control Register 1
11
10
9
8
7
6
AFS
0
0
RW
0C00
5
4
ARAMPSP
0
0
0
RW
0
3
2
AM
UT
ER
AM
UT
EL
RW
0
RW
0
1
Name
Description
14
MONO_SEL
Selects mono mode
AFE HW will do “(left + right)/2” operation to the audio sample pair. Thus
both right and left channel DAC will have the same inputs.
0: Normal function
1: Enable mono mode
12
i2s_1xout_sel
1X data to I2S means data from DSP FIFO and do not pass ASP
0: Normal mode
1: Audio 1x data to I2S
9:6
AFS
Sampling frequency setting
Others reserved
0000: 8kHz
0001: 11.025kHz
0010: 12kHz
0100: 16kHz
0101: 22.05kHz
0110: 24kHz
1000: 32kHz
1001: 44.1kHz
1010: 48kHz
5:4
ARAMPSP
Selects ramp up/down speed
00: 8, 4096/AFS
01: 16, 2048/AFS
10: 24, 1024/AFS
11: 32, 512/AFS
3
AMUTER
Mute the audio R-channel, with soft ramp up/down
0: No mute
1: Turn on mute function
2
AMUTEL
Mutes audio L-channel, with soft ramp up/down
0: No mute
1: Turn on mute function
© 2015 - 2018 Airoha Technology Corp.
0
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MT2523 Series Reference Manual
82CD002
C
Bit
Name
Type
Reset
Bit(s)
15
AD
C_
CO
MP
_E
N
RW
0
AFE_AMCU_
CON2
14
EDI
_W
S_
OP
TIO
N
RW
0
Mnemoni
c
13
12
AFE Audio Control Register 2
11
10
9
8
7
6
PR
EDI
T_
EN
EDI
_SE
L
RW
0
RW
0
003C
5
4
3
2
1
1
1
RW
1
Description
15
ADC_COMP_EN
Enables DC offset compensation
0: Disable
1: Enable
14
EDI_WS_OPTION
Optional setting for I2S
Do not touch the bit.
10
PREDIT_EN
Enables pre-distortion function
No use now
0: Disable
1: Enable
6
EDI_SEL
Feeds EDI input data to audio filter directly
0: Audio data come from DSP.
1: Audio data come from EDI input.
ASDM_GAIN
Gain settings at audio SDM input
Suggested value: 0x3c (60/64). Other SDM gain settings may cause
performance degradation.
000000: 0/64
000001: 1/64
111111: 63/64
82CD003
8
Bit
Name
Type
Reset
Bit(s)
15
AFE_AMCU_
CON3
14
Mnemoni
c
11:0
82CD003
C
Bit
Name
Type
Reset
Bit(s)
11:0
15
13
12
14
Mnemoni
c
11
10
9
8
7
0
0
0
0
0
6
PRE_A2
A2 parameter for pre-distortion
12
0
0000
5
PRE_A2
RW
0
0
Description
13
0
AFE Audio Control Register 3
Name
AFE_AMCU_
CON4
0
ASDM_GAIN
Name
5:0
1
4
3
2
1
0
0
0
0
0
0
AFE Audio Control Register 4
11
10
9
8
7
0
0
0
0
0
6
0000
5
PRE_A3
RW
0
0
Name
Description
PRE_A3
A3 parameter for pre-distortion
© 2015 - 2018 Airoha Technology Corp.
4
3
2
1
0
0
0
0
0
0
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MT2523 Series Reference Manual
82CD0180
Bit
Nam
e
15
AFE_AMCU_
CON5
14
13
12
AFE Audio MCU Control Register 5
11
10
9
7
6
SD
ML
P_
UL
TO
DL
Type
Reset
Bit(s)
8
RW
0
Mnemoni
c
5
AS
DM
_D
AT
A_
MO
NO
RW
0
0000
4
3
2
SD
M_
CK
_P
HA
SE
RW
0
RW
0
Description
8
SDMLP_ULTODL
UL sigma delta data loopback to DL sigma delta data
0: Disable
1: Enable
5
ASDM_DATA_MON
O
Rch output data = Lch outut data
0: Disable
1: Enable
4
SDMLP_DLTOUL
DL sigma delta data loopback to UL sigma delta data
0: Disable
1: Enable
0
SDM_CK_PHASE
Selects phase of SDM clock
0: Clock changes at data falling edge.
1: Clock changes at data rising edge.
Bit
Name
Type
Reset
Bit(s)
AFE_AMCU_
CON6
14
13
12
11
0
0
0
0
0
Mnemoni
c
15:0
82CD0188
Bit
Name
Type
Reset
Bit(s)
15:0
AFE Audio MCU Control Register 6
15
9
8
7
6
5
RCH_AUDIO_DC_OFFSET_VALUE
RW
0
0
0
0
0
0
0000
4
3
2
1
0
0
0
0
0
0
Name
Description
RCH_AUDIO_DC_
OFFSET_VALUE
Set up this register for audio right channel DC offset value
cancellation.
AFE_AMCU_
CON7
AFE Audio MCU Control Register 7
15
14
13
12
11
0
0
0
0
0
Mnemoni
c
10
10
9
8
7
6
5
LCH_AUDIO_DC_OFFSET_VALUE
RW
0
0
0
0
0
0
0000
4
3
2
1
0
0
0
0
0
0
Name
Description
LCH_AUDIO_DC_
OFFSET_VALUE
Set up this register for audio left channel DC offset value
cancellation.
© 2015 - 2018 Airoha Technology Corp.
0
SD
ML
P_
DL
TO
UL
Name
82CD0184
1
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MT2523 Series Reference Manual
82CD002
8
Bit
Name
AFE_EDI_CO
N
15
14
EN
2
UL
_T
OI2
SD
SP
Type
Reset
RW
0
RW
0
Bit(s)
Mnemoni
c
13
AFE EDI Control Register
12
11
RW
9
UL
TO
EDI
I2S_OUT_
MODE
0
10
RW
0
0
EDI
_L
PB
K_
MO
DE
RW
0
8
7
003C
6
5
DIR
4
3
2
WCYCLE
RW
0
0
1
RW
1
1
1
1
0
FM
T
EN
RW
0
RW
0
Name
Description
15
EN2
Enables EDI PAD output
Only for master output mode.
0: Disable EDI PAD output
1: Enable EDI PAD output
14
UL_TOI2SDSP
For 32K recording; uplink data should go to dsp_i2s port
0: UL data do not go to dsp_i2s port.
1: UL data go to dsp_i2s port.
I2S_OUT_MODE
I2S output mode
00: 1X output
01: 2X output
10: 4X output
10
ULTOEDI
Uplink data to I2S
0: Disable
1: Enable
9
EDI_LPBK_MODE
Control loopback mode: EDI_RX = EDI_TX
0: Normal mode
1: Loopback mode
8
DIR
Serial data bit direction
0: Only output mode active. Audio data are fed out to the external device.
1: Both input mode and output mode are active.
WCYCLE
Clock cycle count in a word
Cycle count = WCYCLE + 1; and WCYCLE can only be 15 or 31. Any other
values will result in unpredictable errors.
15: Cycle count is 16.
31: Cycle count is 32.
1
FMT
EDI format
0: EIAJ
1: I2S
0
EN
Enables EDI
When EDI is disabled, EDI_DAT and EDI_WS will hold low.
0: Disable EDI
1: Enable EDI
13:12
6:2
82CD003
0
Bit
Name
Type
Reset
Bit(s)
15
15
VO
N
RW
0
AFE_DAC_T
EST
14
AO
N
RW
0
Mnemoni
c
13
MU
TE
RW
0
12
Audio/Voice DAC SineWave Generator
11
10
9
8
7
6
5
AMP_DIV
1
RW
1
0701
4
3
2
1
0
0
0
1
FREQ_DIV
1
0
0
0
0
RW
Name
Description
VON
Makes voice DAC output the test sine wave
0: Voice DAC inputs are normal voice samples.
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1: Voice DAC inputs are sine waves.
14
AON
Makes audio DAC output the test sine wave
0: Audio DAC inputs are normal voice samples.
1: Audio DAC inputs are sine waves.
13
MUTE
Mute switch
0: Turn on the sine wave output in this test mode
1: Mute the sine wave output
10:8
AMP_DIV
Amplitude setting
111: Full scale
110: 1/2 full scale
101: 1/4 full scale
100: 1/8 full scale
011: 1/16 full scale
010: 1/32 full scale
001: 1/64 full scale
000: 1/128 full scale
7:0
FREQ_DIV
Frequency setting, 1X ~ 15X (voice), 1X ~ 31X (audio)
Audio frequency = Sampling rate/64*FREQ_DIV
Voice frequency = Sampling rate/32*FREQ_DIV
Example: 16K voice mode, FREQ_DIV=3, frequency = 16K/32*3 = 1.5K
82CD003
4
Bit
Name
Type
Reset
Bit(s)
15
A2
V
RW
0
AFE_VAM_S
ET
14
13
12
Audio/Voice Interactive Mode Setting
11
10
9
8
7
6
5
0005
4
3
2
1
0
PER_VAL
1
Mnemoni
c
RW
0
1
Name
Description
15
A2V
Redirects audio interrupt to voice interrupt, i.e. replaces voice
interrupt by audio interrupt
0: Voice interrupt/audio interrupt
1: Audio interrupt/no interrupt
2:0
PER_VAL
Counter reset value for audio interrupt generation period setting.
For example, by default, the setting = 5 will lead to interrupt per 6
L/R samples. Changing this value will change the rate of audio
interrupt.
82CD004
0
Bit
Nam
e
Type
Reset
Bit(s)
15
AFE_DC_DB
G_1
14
12
11
10
9
8
7
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
0
AFE_DC_DBG_1
0
0
Mnemoni
c
15:0
82CD004
4
Bit
Nam
13
AFE DC Debug Register 1
15
0
0
0
0
0
RO
0
Name
Description
AFE_DC_DBG_1
AFE left channel 8X dc compensation/gain output value [15:0] for
debugging
AFE_DC_DB
G_2
14
0
13
12
AFE DC Debug Register 2
11
10
9
8
7
AFE_DC_DBG_2
0000
6
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e
Type
Reset
Bit(s)
0
0
Mnemoni
c
15:0
82CD004
8
Bit
Nam
e
Type
Reset
Bit(s)
15
DB
G_
DC
_SE
L
R/
W
0
0
0
0
0
0
RO
0
0
0
0
0
AFE right channel 8X dc compensation/gain output value [15:0] for
debugging
13
AFE DC Debug Register 3
12
11
10
9
8
7
0000
6
5
4
3
RO
0
Name
0
0
0
AFE_DC_DBG_2
_1
AFE right channel 8X dc compensation/gain output value
[19:16] for debugging
3:0
AFE_DC_DBG_1
_1
AFE left channel 8X dc compensation/gain output value
[19:16] for debugging
AFE_ACHEC
K_SUM_R
0
0
Mnemoni
c
82CD0144
Bit(s)
15:0
0
0
0
12
AFE Checksum Register 0
11
10
9
8
7
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
AFE_ACHECK_SUM_R
15:0
Bit
Name
Type
Reset
13
0
Description
7:4
14
1
RO
0
DBG_DC_SEL
0: AFE_DC_DBG_0 to AFE_DC_DBG_3 is DC compensation
output.
1: AFE_DC_DBG_0 to AFE_DC_DBG_3 is gain stage output.
Bit(s)
2
AFE_DC_DBG_1_1
DBG_DC_SEL
15
0
AFE_DC_DBG_2
15
Bit
Nam
e
Type
Reset
0
Description
AFE_DC_DBG_2_1
Mnemoni
c
82CD0140
0
Name
AFE_DC_DB
G_3
14
0
0
0
0
0
0
RO
0
0
Name
Description
AFE_ACHECK_SU
M_R
AFE right channel 8X checksum value for cosim debugging
AFE_ACHEC
K_SUM_L
AFE Checksum Register 1
15
14
13
12
11
10
0
0
0
0
0
0
Mnemoni
c
0
9
8
7
0000
6
AFE_ACHECK_SUM_L
RO
0
0
0
0
5
4
3
2
1
0
0
0
0
0
0
0
Name
Description
AFE_ACHECK_SU
M_L
AFE left channel 8X checksum value for cosim debugging
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82CD0148
Bit
Name
15
AFE_MUTE_
STA
14
13
12
AFE Mute Status Register
11
10
9
8
7
0000
6
5
4
Type
Reset
Bit(s)
Mnemoni
c
Name
Description
3
UNMUTE_DONE_L
UNMUTE_DONE_L status
2
UNMUTE_DONE_R
UNMUTE_DONE_R status
1
MUTE_DONE_L
MUTE_DONE_L status
0
MUTE_DONE_R
MUTE_DONE_R status
82CD0190
Bit
Name
Type
Reset
Bit(s)
15
AFE_DBG_R
D_PRE
14
Mnemoni
c
11:10
9:0
82CD0194
Bit
Name
15
13
12
14
11
10
9
8
7
0
0
0
0
0
MEM
RW
6
5
MEM
Memory
00: NA
01: Data memory
10: Coefficient memory
11: DSP co-processor mapping registers
AFE_DBG_RD_PRE
Read address
12
1
0
UN
MU
TE_
DO
NE
_R
MU
TE
_D
ON
E_
L
MU
TE
_D
ON
E_
R
RO
0
RO
0
RO
0
4
0000
3
AFE_DBG_RD_PRE
RW
0
0
0
0
Description
13
2
AFE MCU Debug Mode Reading SRAM Out
Name
AFE_DBG_M
D_CON0
3
UN
MU
TE
_D
ON
E_
L
RO
0
2
1
0
0
0
0
AFE Debug Mode Control Register 0
11
10
9
8
7
6
5
0000
4
3
2
Type
Reset
Bit(s)
Mnemoni
c
Name
1
DB
G_
DO
NE
RO
0
Description
1
DBG_DONE
Debug done signal
0
DBG_TRIG
Set up this bit to start running debug mode when debug mode
enable register is high.
82CD0198
Bit
15
AFE_DBG_M
D_CON1
14
13
0
DB
G_
TRI
G
RW
0
12
AFE Debug Mode Control Register 1
11
10
9
8
7
6
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MT2523 Series Reference Manual
Name
Type
Reset
Bit(s)
DB
G_
MD
RW
0
MODE_SEL
0
Mnemoni
c
RW
0
DBG_MD_VAL
0
0
0
0
0
0
0
RW
0
0
0
Name
Description
DBG_MD
Enables debug mode
0: Disable
1: Enable
14:12
MODE_SEL
Selects debug mode
000: Step 1 mode
001: Nxt n cycle, n is DBG_MD_VAL
010: Run to break point. Break point is DBG_MD_VAL
011: Run 1X
101: Run to n 1X, n is DBG_MD_VAL
11:0
DBG_MD_VAL
Corresponding value for different debug mode
15
82CD019C
Bit
Name
15
AFE_DBG_A
PB_STATUS
14
13
12
Mnemoni
c
11
10
9
8
7
Name
6
5
4
3
DBGR_OK
Status for debug mode reading SRAM
APBR_OK
Status for read SRAM data
0
APBW_ACK
Status for writing data into SRAM
Type
Reset
Bit(s)
15
avc
ntr
_er
r_s
ign
al
RO
0
AFE_CMPR_
CNTR
14
15
31
12
AFE Compare Counter Control Register
11
0
11:0
Bit
1
AP
BR
_O
K
RO
0
0
AP
BW
_A
CK
RO
0
10
9
8
7
6
5
021D
4
3
2
1
0
1
1
1
0
1
cmpr_cntr
Mnemoni
c
82CD01E0
13
2
DB
GR
_O
K
RO
0
Description
1
Bit
Name
0
0000
2
82CD01CC
0
AFE MCU Status Register
Type
Reset
Bit(s)
0
1
0
0
0
RW
0
Name
Description
avcntr_err_signal
Compare counter for 1X enable error flag
cmpr_cntr
If the clock count in 1x enable < cmpr_cntr, avcntr_err_signal will
be pulled high.
AFE_DBG_R
D_DAT
30
0
29
28
AFE Debug Mode - Reading SRAM Data
27
26
25
24
23
22
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21
20
000000
19
18
17
16
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Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
15
14
13
12
11
10
0
0
0
0
0
0
Mnemoni
c
19:0
82CD01E4
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
DBG_RD_DAT
The register width is 20 bits.
4
0
0
26
25
24
23
22
21
20
15
14
13
12
11
10
9
8
7
6
5
4
0
0
0
0
0
15
14
Mnemoni
c
15
Description
AFE_APBMEM_RD
_DAT
The register width is 20 bits
13
12
Mnemoni
c
11
10
9
8
7
0
0
0
0
0
MEM
RW
6
0
0
0
0
0
19
18
17
16
3
2
1
0
0
0
0
0
AFE_APBMEM_RD_DA
T[19:16]
RO
0
0
0
0
5
4
3
AFE_APBMEM_RD
RW
0
0
0
0
MEM
Memory
00: NA
01: Data memory
10: Coefficient memory
11: DSP co-processor mapping registers
AFE_APBMEM_RD
Read address
12
0
0000
Description
13
1
AFE MCU Read SRAM Request
Name
AFE_PC_1X_
IDX
14
AFE_APBMEM_RD_DAT[15:0]
RO
0
0
0
0
0
0
Name
AFE_APBME
M_RD
2
000000
27
Mnemoni
c
3
AFE MCU Reading SRAM Data
28
82CD01EC
11:0
Description
5
29
9:0
Bit(s)
6
30
11:10
Bit
Name
Type
Reset
7
31
82CD01E8
Bit(s)
8
DBG_RD_DAT[15:0]
RO
0
0
0
0
Name
AFE_APBME
M_RD_DAT
19:0
Bit
Name
Type
Reset
9
DBG_RD_DAT[19:16]
RO
0
0
0
0
2
1
0
0
0
0
AFE Program 1X IDX
11
10
9
8
0
0
0
0
0022
7
6
5
4
AFE_PC_1X_IDX
RW
0
0
1
0
Name
Description
AFE_PC_1X_IDX
DSP co-processor idle address
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1
0
0
0
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Do not change the value. AFE may hang if the value is changed.
82CD01F0
Bit
Name
Type
Reset
Bit(s)
15
DB
G_1
XD
AT
_E
N
RW
0
AFE_DBG_SI
G
14
Mnemoni
c
13
12
AFE 8X/Buffer/Mux Debug
11
10
9
8
0000
7
6
5
4
3
2
1
0
V8
X_
LP
BK
DM
IC_
SW
AP
AA
FE
_A
LN
VA
FE
_A
LN
VD
L
VU
L
AD
L
I2S
RW
0
RW
0
RO
0
RO
0
RO
0
RO
0
RO
0
RO
0
Name
Description
15
DBG_1XDAT_EN
Enables 1X sample data for debug input
7
V8X_LPBK
Voice downlink 8x output loopback to uplink 8x
6
DMIC_SWAP
Swaps digital mic input source
5
AAFE_ALN
aafe_on align 1x_enable signal
4
VAFE_ALN
vafe_on align 1x_enable signal
3
VDL
VDL debug signal
2
VUL
VLL debug signal
1
ADL
ADL debug signal
0
I2S
I2S debug signal
82CD01F4
Bit
Name
Type
Reset
Bit(s)
15
AFE_PC_OU
T_DBG
14
Mnemoni
c
11:0
82CD01F8
Bit
Name
Type
Reset
Bit(s)
13
12
AFE Program PC Address
11
10
9
8
7
0
0
0
0
0
4
3
2
1
0
0
0
0
0
0
PC_OUT
Current DSP co-processor programming counter output for
debugging
DBG_1XDAT
14
13
12
11
10
0
0
0
0
0
0
82CD020
0
5
Description
15
15:0
6
PC_OUT
RO
0
0
Name
AFE_DBG_1
XDAT
Mnemoni
c
0000
9
0000
8
7
6
AFE_DBG_1XDAT
RW
0
0
0
0
5
4
3
2
1
0
0
0
0
0
0
0
Name
Description
AFE_DBG_1XDAT
Debug 1X input. Used in debug mode
AFE_COSIM
_RG
AFE COSIM RG Test
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Bit
Nam
e
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Type
Reset
Bit(s)
Mnemoni
c
Name
Description
1
FPGA_DL2UL_LPB
K
FPGA loopback mode
0: Normal mode
1: Uplink data are from DL FIFO.
0
UL_SINE_OUT
Uplink data are sine table output.
82CD0210
Bit
Name
AFE_MCU_C
ON0
15
14
13
12
1
AFE MCU Control Register 0
11
10
9
8
7
6
0
FP
GA
_D
L2
UL
_L
PB
K
RW
0
UL
_SI
NE
_O
UT
RW
0
0000
5
4
3
2
1
0
AF
E_
ON
RW
0
Type
Reset
Bit(s)
Mnemoni
c
0
82CD0214
Bit
Name
Name
Description
AFE_ON
Turns on the audio front end
0: Turn off
1: Turn on
AFE_MCU_C
ON1
15
Type
Reset
Bit(s Mnemo
)
nic
14
13
12
AFE MCU Control Register 1
11
10
9
8
7
6
Name
Description
3
UDSP_DL_ON
Turns on UDSP DL function
0: Turn off
1: Turn on
2
A_IF_DL_ON
Turns on a_interface DL function
0: Turn off
1: Turn on
1
UDSP_UL_ON
Turns on UDSP UL function
0: Turn off
1: Turn on
0
A_IF_UL_ON
Turns on a_interface UL function
0: Turn off
1: Turn on
© 2015 - 2018 Airoha Technology Corp.
0000
5
4
3
UD
SP_
DL
_O
N
RW
0
2
A_I
F_
DL
_O
N
RW
0
1
UD
SP_
UL
_O
N
RW
0
0
A_I
F_
UL
_O
N
RW
0
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MT2523 Series Reference Manual
21. 2D Acceleration
21.1.
General Description
To enhance MMI display and gaming experiences, a 2D acceleration engine is implemented. It supports many
types of color formats. Main features are listed as follows:
• Four-layer overlay with individual color format, window size, source key, constant alpha and rotation.
•
Supports up to 2048x2048 resolution for each layer and Region of Interest (ROI).
•
Each layer supports RGB565, RGB888, BGR888, ARGB8888, PARGB8888, ARGB6666, ARGB8565,
PARGB6666, PARGB8565 and YUYV422 format
•
Font caching: normal font and anti-aliasing font
•
Rectangle fill with alpha-blending
•
Specific output color replacement
MCU can program 2D engine registers via APB. However, MCU has to make sure that the 2D engine is not BUSY
before any write to 2D engine registers occurs. An interrupt scheme is also provided for more flexibility. Top view
of 2D engine is shown as .
CLK / RST / IRQ
Test mode
G2D Engine
APB
s
GMC
rw
Figure 21-1. 2D Engine Block Diagram
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21.2. Features
21.2.1. 2D Coordinate
The ROI coordinates in 2D engine are represented as 12-bit signed integers which covered from -2048 to 2047. The
maximum resolution of ROI coordinates can achieve 4096x4096, however the maximum ROI size and layer window
size are 2048x2048. shows the coordinate system of 2D engine.
min(-2048)
x
(0,0)
min(-2048)
L0_ofs
max(2047)
ROI_ofs
L3_ofs
ROI_height
ROI_width
L2_ofs
y
max(2047)
Figure 21-2. 2D Engine Coordinates
21.2.2. Color Format
Each layer supports RGB565, RGB888, BGR888, ARGB8888, PARGB8888 and YUV422 (UY0VY1 from low address to
high address) color format. 2D engine supports RGB565, RGB888, BGR888, ARGB8888 and PARGB8888 color
format for write channel. However, 2D engine cannot convert PARGB to ARGB color format (Ex. Layer 0 and 1 are
PARGB color format but ROI is ARGB)
21.2.3. Clipping Window
The setting for clipping window is effective for all the 2D graphics. A pair of minimum and maximum boundary is
applied on ROI window. The portion outside the clipping window will not be drawn to the memory, but the pixels
on the boundary will be kept. The clipping operation is illustrated in .
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x
(0,0)
ROI
clp_min
clp_max
y
Figure 21-3. 2D Engine Clipping Operation
21.2.4. Alpha Blending Formula
The alpha blending formula is selected by source color format and the formula is listed below:
1. If the source color format is PARGB
2.
if (SCA != 0xff) {
Dst.R = Dst.R * (0xff – Src.A * SCA/0xff) / 0xff + Src.R * SCA/0xff;
Dst.G = Dst.G * (0xff – Src.A * SCA/0xff) / 0xff + Src.G * SCA/0xff;
Dst.B = Dst.B * (0xff – Src.A * SCA/0xff) / 0xff + Src.B * SCA/0xff;
Dst.A = Dst.A * (0xff – Src.A * SCA/0xff) / 0xff + Src.A * SCA/0xff;
}
else {
Dst.R = Dst.R * (0xff – Src.A) / 0xff + Src.R;
Dst.G = Dst.G * (0xff – Src.A) / 0xff + Src.G;
Dst.B = Dst.B * (0xff – Src.A) / 0xff + Src.B;
Dst.A = Dst.A * (0xff – Src.A) / 0xff + Src.A;
}
If the source color format is ARGB
if (SCA != 0xff) {
Dst.R = Dst.R * (0xff – Src.A * SCA/0xff) / 0xff + Src.R * (Src.A/0xff) * (SCA/0xff);
Dst.G = Dst.G * (0xff – Src.A * SCA/0xff) / 0xff + Src.G * (Src.A/0xff) * (SCA/0xff);
Dst.B = Dst.B * (0xff – Src.A * SCA/0xff) / 0xff + Src.B * (Src.A/0xff) * (SCA/0xff);
Dst.A = Dst.A * (0xff – Src.A * SCA/0xff) / 0xff + Src.A * SCA/0xff;
}
else {
Dst.R = Dst.R * (0xff – Src.A) / 0xff + Src.R * Src.A/0xff;
Dst.G = Dst.G * (0xff – Src.A) / 0xff + Src.G * Src.A/0xff;
Dst.B = Dst.B * (0xff – Src.A) / 0xff + Src.B * Src.A/0xff;
Dst.A = Dst.A * (0xff – Src.A) / 0xff + Src.A;
}
3.
If the source color format is RGB)
Dst.R = Dst.R * (0xff – SCA) / 0xff + Src.R * SCA/0xff;
Dst.G = Dst.G * (0xff – SCA) / 0xff + Src.G * SCA/0xff;
Dst.B = Dst.B * (0xff – SCA) / 0xff + Src.B * SCA/0xff;
Dst.A = Dst.A * (0xff – SCA) / 0xff + Src.A * SCA/0xff;
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Where SCA is the source constant alpha specified by ALPHA in G2D_Lx_CON, Dst.ARGB is the destination color,
and Src.ARGB is the source color. If the source color format is RGB888 or RGB565, Src.A will be 0xff. The range of
the alpha channel is from 0x0 to 0xff. When performing PARGB or ARGB with SCA, it takes two cycles to complete
the alpha-blending formula. Thus we do not recommend using SCA when aa-font drawing and rectangle fill.
21.2.5. Font Drawing
21.2.5.1.
Normal Font Drawing
The 2D engine helps to render fonts stored in one-bit-per-pixel format. If the index value is one, 2D engine writes
foreground color out to memory and no action will be taken if the value is zero. The start bit of font drawing can
be implemented by shifting the starting x coordinate of source, and it can be non-byte aligned to save memory
usage for font caching. In addition, the rotations can be performed at the same time when drawing fonts.
Source pitch
(the same with destination width)
Source base address
Source height
(the same with destination one)
Source width
(the same with destination one)
Destination pitch
Destination base address
Destination height
Foreground Color
Background Color
Destination width
Figure 21-4. Font Drawing Setting
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21.2.5.2.
Anti-Aliasing Font Drawing
The 2D engine can accelerate the rendering of anti-aliasing fonts stored in multi-bit-per-pixel format (1/2/4/8). It is
realized by enabled FONT_EN and ALP_EN in G2D_Lx_CON. The index color gives the interpolation weight value for
foreground color.
In anti-aliasing font drawing, there are two passes alpha blending applying among the font alpha value, foreground
color, and destination color. The following figure describes the sequence.
Bitmap font
1/2/4/8 bit
index
bitstream
ARGB or
PARGB
FGCLR
lower layer
buffer
Alpha
Blending 1
Alpha
Blending 2
ROI memory
buffer
Figure 21-5. Anti-aliasing Font Diagram
Alpha blending 1 performs alpha blending between alpha value from font alpha bitstream and foreground color.
The formula is listed below:
switch( bit_per_pixel){
case 1: weighting = (bit_stream == 1) ? 0xff : 0x00;
case 2: weighting = (bit_stream << 6) | (bit_stream << 4) | (bit_stream << 2) | (bit_stream << 0);
case 4: weighting = (bit_stream << 4) | (bit_stream << 0);
case 8: weighting = bit_stream;
}
if (layer color format == PARGB){
font.[argb] = (fgclr.[argb] * weighting + 0x80) / 0xff;
} else {
font.a = (fgclr.a * weighting + 0x80) / 0xff;
}
where the divide by 0xff is implemented as following formula:
value / 0xff = (value * 257) >> 16;
Alpha blending 2 is an alpha blending between the result of alpha blending 1 and destination color. The formula of
alpha blending 2 is as same as section 21.2.4.
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Figure 21-6. Anti-aliasing Font Example
shows an example of anti-aliasing font operation. Each layer can be configured as font bitmap (layer 2 in this
example). After blending all layers’ pixel, the color would be written to ROI memory buffer.
21.2.6. Rectangle Fill
Each layer could be configured as a constant color to perform rectangle fill. If alpha-blending is enabled at this
layer, the constant color will blending to lower layer as shown in .
Figure 21-7. Rectangle Fill with Alpha-Blending Example
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21.3.
Application Notes
The purpose of this document is to describe the functional interface of G2D to help supporting the usage of 2D
accelerations. It is noted that there are many 2D acceleration features provided by MediaTek’s 2D
Hardware/Software engine. However, in current driver design, we supported
1.
Hardware Bitblt
2.
Hardware Rectangle fill
3.
Hardware Font drawing
4.
Software Linear transform
5.
Hardware Overlay
Generally, the G2D driver interfaces are provided and combined with GDI layers. It is strongly suggested that
application to use G2D interface through GDI. Nevertheless, you could use the 2D engine by calling the G2D driver
APIs directly. Below figure shows the block diagram of graphic 2D driver interface
•
GDI: Graphics Device Interface,
•
G2D: Graphic 2D engine
•
BitBlt: Bit block transfers
GDI
Camera
Unified G2D Interface
HW Driver
SW Codec
(Only support Linear Transform)
Figure 21-8. The block diagram of graphic 2D driver interface
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Here is an example for BitBlt using API:
src_buf = (kal_uint8 *)&rgb565_240X320[0];
dst_buf = (kal_uint8 *)&dst_hw_image_240X320[0];
src_color_format = G2D_COLOR_FORMAT_RGB565;
dst_color_format = G2D_COLOR_FORMAT_RGB565;
src_rect_w = 240;
src_rect_h = 320;
dst_rect_w = 320;
dst_rect_h = 240;
/// G2D_STATUS_BUSY means someone is using G2D
if(G2D_STATUS_OK != g2dGetHandle(&g2dHandle, G2D_CODEC_TYPE_HW,
G2D_GET_HANDLE_MODE_DIRECT_RETURN_HANDLE))
return;
g2dSetCallbackFunction(g2dHandle,NULL);
g2dSetDstRGBBufferInfo(g2dHandle, (kal_uint8 *)dst_buf, 240 * 320 * 4, dst_rect_w, dst_rect_h,
dst_color_format);
g2dSetColorReplacement(g2dHandle, KAL_FALSE, 0, 255, 0, 0, 0, 0, 0, 255);
g2dSetDstClipWindow(g2dHandle, KAL_FALSE, 0, 0, dst_rect_w, dst_rect_h);
g2dSetSrcKey(g2dHandle, KAL_FALSE, 0, 0, 0, 0);
g2dBitBltSetSrcRGBBufferInfo(g2dHandle, src_buf, 240 * 320 * 2, src_rect_w, src_rect_h, src_color_format);
g2dBitBltSetSrcWindow(g2dHandle, 0, 0, src_rect_w, src_rect_h);
g2dBitBltSetDstWindow(g2dHandle, 0, 0, dst_rect_w, dst_rect_h);
g2dBitBltSetRotation(g2dHandle, G2D_ROTATE_ANGLE_090);
g2dBitBltSetSrcAlpha(g2dHandle, KAL_FALSE, 0x0);
g2dBitBltSetDstAlpha(g2dHandle, KAL_FALSE, 0x0);
g2dBitBltStart(g2dHandle);
while(g2dGetStatus(g2dHandle)) {};
g2dReleaseHandle(g2dHandle);
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21.4. Register Definitions
summarizes the 2D engine register mapping on APB. The base address of 2D engine is A0440000h .
Table 21-1. The 2D engine register mapping
APB Address
Register Function
Acronym
G2D+0000h
G2D Start Register
START
G2D+0004h
G2D Mode Control Register
MODE_CON
G2D+0008h
G2D Reset Register
RESET
G2D+000Ch
G2D Status Register
STATUS
G2D+0010
G2D Interrupt Regsiter
IRQ
G2D+0014h
G2D Slow Down Control Register
SLOW_DOWN
G2D+0040h
G2D ROI Control Register
ROI_CON
G2D+0044h
G2D Write to Memory Address Register
W2M_ADDR
G2D+0048h
G2D Write to Memory Pitch Register
W2M_PITCH
G2D+004Ch
G2D ROI Offset Register
ROI_OFS
G2D+0050h
G2D ROI Size Register
ROI_SIZE
G2D+0054h
G2D ROI Background Color Register
ROI_BGCLR
G2D+0058h
G2D Clipping Minimum Coordinate Register
CLP_MIN
G2D+005Ch
G2D Clipping Maximum Coordinate Register
CLP_MAX
G2D+0060h
G2D Avoid Write Color Register
AVO_CLR
G2D+0064h
G2D Replaced Color Register
REP_CLR
G2D+0068h
G2D Write to Memory Offset Register
W2M_MOFS
G2D+0070h
G2D MW Initial value
MW_INIT
G2D+0074h
G2D MZ Initial value
MZ_INIT
G2D+0078h
G2D Dithering Control Register
DI_CON
G2D+0080h
G2D Layer 0 Control Register
L0_CON
G2D+0084h
G2D Layer 0 Address Register
L0_ADDR
G2D+0088h
G2D Layer 0 Pitch Register
L0_PITCH
G2D+008Ch
G2D Layer 0 Offset Register
L0_OFS
G2D+0090h
G2D Layer 0 Size Register
L0_SIZE
G2D Layer 0 Source Key Register
L0_SRCKEY
G2D Initial Source Sample Z Register
SZ_INIT
G2D+00C0h
G2D Layer 1 Control Register
L1_CON
G2D+00C4h
G2D Layer 1 Address Register
L1_ADDR
G2D+0094h
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G2D+00C8h
G2D Layer 1 Pitch Register
L1_PITCH
G2D+00CCh
G2D Layer 1 Offset Register
L1_OFS
G2D+00D0h
G2D Layer 1 Size Register
L1_SIZE
G2D+00D4h
G2D Layer 1 Source Key Register
L1_SRCKEY
G2D+0100h
G2D Layer 2 Control Register
L2_CON
G2D+0104h
G2D Layer 2 Address Register
L2_ADDR
G2D+0108h
G2D Layer 2 Pitch Register
L2_PITCH
G2D+010Ch
G2D Layer 2 Offset Register
L2_OFS
G2D+0110h
G2D Layer 2 Size Register
L2_SIZE
G2D+0114h
G2D Layer 2 Source Key Register
L2_SRCKEY
G2D+0140h
G2D Layer 3 Control Register
L3_CON
G2D+0144h
G2D Layer 3 Address Register
L3_ADDR
G2D+0148h
G2D Layer 3 Pitch Register
L3_PITCH
G2D+014Ch
G2D Layer 3 Offset Register
L3_OFS
G2D+0150h
G2D Layer 3 Size Register
L3_SIZE
G2D+0154h
G2D Layer 3 Source Key Register
L3_SRCKEY
Module name: 2D Accleration Base address: (+A0440000h)
G2D+0000h G2D Start Register
Bit
15
14
13
12
11
10
G2D_START
9
8
7
6
5
4
3
2
1
0
STAR
T
Name
Type
Reset
R/W
0
START G2D start register. This register should be enabled after all of other registers are already filled.
Please follow the start sequence to trigger G2D:
*G2D_RESET = 2;
*G2D_RESET = 0;
*G2D_START = 1;
0 disable G2D engine
1 trigger G2D engine
G2D_MODE_
CON
G2D+0004h G2D Mode Control Register
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
RESERVED
R/W
0
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Bit
Name
Type
Reset
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
ENG_MODE
RO
1
ENG_MODE 2D engine function mode
001
Bitblt
others Reserved
G2D+0008h G2D Reset Register
Bit
15
14
13
12
11
10
G2D_RESET
9
8
7
6
5
4
3
2
1
0
WRS
HRST
T
Name
Type
Reset
R/W R/W
0
0
HRST G2D hard reset. All registers (except APB registers) will be reset to initial value immediately.
WRST G2D warm reset. Please follow correct reset sequence to avoid potential bus hang problem
(breaking bus protocol)
G2D_RESET = 0x1;
while (G2D_STATUS != 0){
read G2D_STATUS;
}
G2D_RESET = 0x2;
G2D_RESET = 0x0;
G2D+000Ch G2D Status Register
Bit
15
14
13
12
11
10
9
G2D_STATUS
8
7
6
5
4
3
2
1
0
TBUS
BUSY
Y
Name
Type
Reset
RO
0
RO
0
Read this register to get 2D engine status. 2D engine may function abnormally if any 2D engine register is
modified when BUSY.
BUSY 2D engine is busy.
TBUSY Transaction busy. If any read/write memory access transaction is not completed, this register will
be asserted.
G2D+0010h G2D Interrupt Register
Bit
31
30
29
28
27
26
25
G2D_IRQ
24
23
22
21
20
19
18
17
Name
Type
Reset
Bit
16
FLAG
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R/W
0
0
FLGA
0_IR
Q_EN
Name
Type
Reset
R/W
0
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FLAG0_IRQ_EN
2D engine interrupt enabled. The interrupt is negative level sensitive.
FLAG0
2D interrupt status. It is raised when engine finished the task and
FLAG0_IRQ_EN is asserted.
0 Write 0 to clear interrupt
1
Interrupt occurs. Software can also write this bit to trigger G2D interrupt.
G2D_SLOW_
DOWN
G2D+0014h G2D Slow Down Control Register
Bit
31
Name EN
Type R/W
Reset 0
Bit
15
Name
Type
Reset
30
29
28
27
26
25
24
23
22
RD_BTYP
14
13
12
11
10
R/W
0
9
21
20
19
18
17
16
4
3
2
1
0
WR_BTYP
8
7
6
R/W
100
5
SLOW_CNT
R/W
0
EN
Enable slow down mechanism to slower 2D engine read/write memory speed
RD_BTYP
Read request maximum burst type
000
burst-8
001
burst-4
011
single
others reserved
WR_BTYP
Write request maximum burst type
100
burst-16
011
burst-8
010
burst-4
000
single
SLOW_CNT Read/write request slow counter. The minimum cycle count between two read/write
request.
G2D_ROI_CO
N
G2D+0040h G2D ROI Control Register
Bit
31
30
Name EN0
EN1
29
EN2
28
27
26
25
24
23
22
EN3
Type R/W R/W R/W R/W
Reset 0
0
0
0
Bit
15
14
13
12
21
20
CLR_
REP_
EN
11
Name
OUT_ALPHA
Type
Reset
R/W
0
10
9
8
7
6
R/W
0
5
OUT_
ALP_
EN
R/W
0
19
18
17
16
DIS_ TILE_ FORC CLP_
BG SIZE E_TS EN
4
R/W R/W R/W R/W
0
0
0
0
3
2
1
0
CLRFMT
R/W
0
ENn Enable the nth layer
CLR_REP_EN
Color replacement enabled.
DIS_BG
Disable background color. shows the effect of this register. In linear transform
mode, DIS_BG should always be 1’b1.
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0
1
Enable background color
If any of following condition is true, this write request will be ignored
(1) No layer covered this ROI position
(2) Normal font and the bitstream value is zero
(3) Source key hit
Figure 21-9. DIS_BG example
TILE_SIZE ROI scan tile size, only take effect when FORCE_TS is on. Please set zero (8x8) when
performing linear transform.
0 4x4 for bitblt. 8x8 for linear transform
1 8x8 for bitblt. 16x8 for linear transform
FORCE_TS Force tile size. When this field is off, hardware selects the best tile size automatically. 8x8
for linear transform. 16x8 for only one layer is enabled.
0 Off. Hardware select automatically
1 On. Force tile size
CLP_EN
Clipping window enabled. Pixels out of clipping window will not be written.
OUT_ALPHA Replace written alpha channel value with this field when OUT_ALP_EN is enabled.
OUT_ALP_EN
Output alpha channel replacement enabled.
CLRFMT
Write to memory color format. (Notice: After alpha-blending, the color format is always
PARGB, not ARGB)
00001 RGB565
00011 RGB888
01000 ARGB8888 (only for bitblt without alpha-blending)
01001 ARGB8565 (only for bitblt without alpha-blending)
01010 ARGB6666 (only for bitblt without alpha-blending)
01100 PARGB8888
01101 PARGB8565
01110 PARGB6666
10011 BGR888
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G2D_W2M_A
DDR
G2D+0044h G2D W2M Address Register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
5
4
3
2
1
0
W2M_ADDR[31:16]
R/W
0
15
14
13
12
11
10
9
8
7
6
W2M_ADDR[15:0]
R/W
0
W2M_ADDR Write to memory base address. The address should be 2 byte aligned for RGB565 output
and 4 byte aligned for ARGB8888 or PARGB8888. RGB888 output can start at any address.
G2D_W2M_P
ITCH
G2D+0048h G2D W2M Pitch Register
Bit
Name
Type
Reset
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
PITCH
R/W
0
PITCH Write to memory pitch in unit of byte. The pitch divided by the output color format byte-per-pixel
(bpp) must be equal or greater than the ROI width. If the output bpp is 4, the pitch must be
divisible by 4. If the bpp is 2, the pitch must be divisible by 2. If the bpp is 3 (RGB888), the pitch
can be any number greater than ROI width*3. The maximum pitch is 0x2000 which indicates the
maximum resolution is 2048x2048@ARGB8888.
G2D_ROI_OF
S
G2D+004Ch G2D ROI Offset Register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
4
3
2
1
0
OFS_X
R/W
0
15
14
13
12
11
10
9
8
7
6
5
OFS_Y
R/W
0
OFS_X
OFS_Y
ROI x offset in unit of pixel. 12-bit signed integer, range: [-2048~2047]
ROI y offset in unit of pixel. 12-bit signed integer, range: [-2048~2047]
G2D_ROI_SI
ZE
G2D+0050h G2D ROI Size Register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
4
3
2
1
0
WIDTH
R/W
0
15
14
13
12
11
10
9
8
7
6
5
HEIGHT
R/W
0
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WIDTH Width of ROI window in unit of pixel. 12bit unsigned integer, range: [1, 2048]
HEIGHT Height of ROI window in unit of pixel. 12bit unsigned integer, range: [1, 2048]
G2D_ROI_BG
CLR
G2D+0054h G2D ROI Background Color
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
ALPHA
15
14
13
R/W
0
12
11
19
18
17
16
2
1
0
REG
R/W
0
10
9
8
7
6
5
GREEN
4
3
BLUE
R/W
0
R/W
0
The color format of background color is PARGB8888.
ALPHA
Alpha component of ROI background color
RED
Red component of ROI background color
GREEN
Green component of ROI background color
BLUE
Blue component of ROI background color
G2D_CLP_MI
N
G2D+0058h G2D Clipping Minimum Register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
4
3
2
1
0
CLP_MIN_X
R/W
0
15
14
13
12
11
10
9
8
7
6
5
CLP_MIN_Y
R/W
0
The clipping window is shown in . Clipping window is not supported in SAD function mode.
CLP_MIN_X The minimum value of x coordinate in clipping window, signed 12-bit integer. Range:[2048~2047]
CLP_MIN_Y The minimum value of y coordinate in clipping window, signed 12-bit integer. Range:[2048~2047]
G2D_CLP_M
AX
G2D+005Ch G2D Clipping Maximum Register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
4
3
2
1
0
CLP_MAX_X
R/W
0
15
14
13
12
11
10
9
8
7
6
5
CLP_MAX_Y
R/W
0
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MT2523 Series Reference Manual
The clipping window is shown in .
CLP_MAX_X The maximum value of x coordinate in clipping window, signed 12-bit integer. Range:[2048~2047]
CLP_MAX_Y The maximum value of y coordinate in clipping window, signed 12-bit integer. Range:[2048~2047]
G2D_AVO_CL
R
G2D+0060h G2D Avoid Write Color
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
6
5
4
3
2
1
0
AVO_CLR[31:16]
R/W
0
15
14
13
12
11
10
9
8
7
AVO_CLR[15:0]
R/W
0
AVO_CLR When CLR_REP_EN is enabled and write out color is equal to AVO_CLR, the color would be
replaced with REP_CLR. The color format of AVO_CLR is the same with ROI color format. The
compare operation is done at the last stage as shown in following figure.
AVO_CLR
Pixel
Engine
ARGB8888
Color
Conversion
(w2m_fmt)
CMP
Write
color
REP_CLR
Figure 21-10. Color Replacement Stage
G2D_REP_CL
R
G2D+0064h G2D Replaced Color
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
6
5
4
3
2
1
0
REP_CLR[31:16]
R/W
0
15
14
13
12
11
10
9
8
7
REP_CLR[15:0]
R/W
0
REP_CLR When CLR_REP_EN is enabled and write out color is equal to AVO_CLR, the color would be
replaced with REP_CLR. The color format of REP_CLR is the same with ROI color format.
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MT2523 Series Reference Manual
G2D_W2M_M
OFS
G2D+0068h G2D Write to Memory Offset Register
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
4
3
2
1
0
W2M_MOFS _X
R/W
0
15
14
13
12
11
10
9
8
7
6
5
W2M_MOFS_Y
R/W
0
W2M_MOFS _X
The ROI memory x-offset, signed 12-bit integer. Range:[-2048~2047]
W2M_MOFS_Y
The ROI memory y-offset, signed 12-bit integer. Range:[-2048~2047]
for(y’=0; y’SE0)
Scanning time of one line (in unit of LCD working clock cycle)
= (LCD_CALC_HTT.COUNT*256) / (SE1 – SE0)
else
Scanning time of one line (in unit of LCD working clock cycle)
= (LCD_CALC_HTT.COUNT*256) / (SE1 – SE0 + vertical total lines including blanking)
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MT2523 Series Reference Manual
8.
The scanning time of one line can be used in both sync mode 0 and mode 1 by setting
LCD_SYNC_LCM_SIZE.HTT = (Scanning time of one line)/16;
A0450048
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_SYNC_LC
LCD Sync LCM Size Register
M_SIZE
31
30
29
28
27
15
14
13
12
11
0
26
25
0
0
10
00010001
24
23
22
21
20
19
18
17
0
0
0
0
0
0
0
0
1
0
0
0
0
0
1
9
8
0
0
7
VTT
RW
6
0
0
5
0
HTT
RW
4
3
2
16
1
Bit(s) Mnemonic Name
Description
27:16
VTT
Vertical Timing
Set the number of horizontal LCM lines including blanking lines. VTT
must be greater than 0.
9:0
HTT
Horizontal Timing
Indicate how long a LCM horizontal line is in unites of 16*T which T is
the LCD cycle time.
A045004C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_SYNC_C
LCD Sync Counter Register
NT
31
30
29
28
27
15
14
13
12
11
10
0
0
0
26
25
0
0
00000001
24
23
0
0
SCANLINE
RU
0
0
0
WAITLINE
RW
0
0
9
8
0
0
7
22
21
6
5
20
19
18
17
0
0
0
0
1
0
0
0
0
0
1
4
3
2
16
0
Bit(s) Mnemonic Name
Description
27:16
SCANLINE
Current TE counter value
11:0
WAITLINE
TE Delay
SCANLINE will count until it reaches this value and a TE interrupt will
be issued (if enabled). LCD will then begin updating a frame.
WAITLINE must be greater than 0.
A0450050
Bit
Name
Type
Reset
Bit
LCD Tearing Control Register
30
29
28
27
15
14
13
12
11
Name SW_T
E
Type
Reset
LCD_TECON
31
RW
0
00000000
26
25
24
23
22
21
20
19
18
17
16
10
9
8
7
6
5
4
3
2
1
0
TE_C
DSI_ DSI_S
OUNT
END_ TART
ER_E
CTL _CTL
N
RW
RW
RW
0
0
0
© 2015 - 2018 Airoha Technology Corp.
TE_R SYNC TE_E
SYNC
EPEA _MO DGE_
_EN
SEL
DE
T
RW
0
RW
0
RW
0
RW
0
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
15
SW_TE
Software TE
Software emulated TE signal. Write this bit from 0 to 1 will let LCD act
like a TE signal has been received. This is only used for SYNC_MODE =
0.
10
TE_COUNTER_EN
The way DSI leaves wait TE state
0: by DSI’s TE signal
1: by LCD’s TE counter
9
DSI_END_CTL
DSI produce eof
0: end indication is by DSI vde falling
1: end indication is by DSI frame done signal
8
DSI_START_CTL
DSI produces sof
0: start byDSI vsync falling
1: start by DSI TE event
3
TE_REPEAT
repeat mode
0: update LCM once every TE signal coming
1: repeat updaing LCM after TE signal coming
2
SYNC_MODE
TE Sync Mode:
Select the TE type to use
(0: LCd working cycle time *16 *HTT *LINES ns)
0: LCD updates when a TE edge is detected and a specified delay has
passed.
1: LCD updates when software read the current LCM scanline and LCD
has counted from the current scanline the specified update scanline.
1
TE_EDGE_SEL
TE Edge Select
Select which edge is used to detect a TE signal
0: Rising edge
1: Falling edge
0
SYNC_EN
Sync Enable
Enable or Disable LCD TE control
0: Disable
1: Enable
A0450080 LCD_ROICON LCD Region of Interest Control Register
Bit
31
30
29
28
Name
EN0
EN1
EN2
EN3
Type
Reset
Bit
Name
Type
Reset
RW
0
RW
0
RW
0
RW
0
15
ENC
RW
0
14
13
0
12
0
Bit(s) Mnemonic Name
27
11
00000000
26
25
24
23
22
21
20
19
18
17
16
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
0
0
0
0
SEND
COLO
_RES
IF24
R_EN
_MO
D
RW
RW
RW
0
0
0
COMMAND
RW
0
0
FMT
RW
Description
31
EN0
Layer 0 window enable control
30
EN1
Layer 1 window enable control
29
EN2
Layer 2 window enable control
28
EN3
Layer 3 window enable control
26
COLOR_EN
Enable the data path through mm_color
0: Disable the data path through mm_color
1: Enable the data path through mm_color
25
IF24
24 Bit Data bus Enable:
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
24
Description
0: ROI BUS width set to FMT specified width
1: ROI BUS width set to 24 bit width
SEND_RES_MOD
Send Residual Odd Pixel
When the LCD Interface is configured to send 2 pixels/cycle or 2
pixels/3 cycles and the ROI width is odd, the last pixel of each line will
not form a pixel pair. If the ROI height is odd as well, the last pixel of
the frame will also not be a pixel pair. In each case, the LCD Interface
will send extra data to fill in for the missing pixel. This setting allows
one to choose how the extra data will be sent.
0: Send the residual odd pixel per frame. In this mode, the last pixel of
a line is combined with an extra byte and sent to LCM. LCD driver
should not care this extra byte.
EX: ROI is 3x2, the output sequence is
R0G0 --- pixel0 of line 0
B0R1
G1B1
R2G2
B2R1 --- LCD driver should not care R1
R0G0 --- pixel 0 of line 1
B0R1
G1B1
R2G2
B2R1 --- LCD driver should not care R1
1: Send the residual odd pixel per frame. In this mode, the last pixel of a
line is combined with the first pixel of the next line as a two-pixel-pair,
and is sent to LCM
EX: ROI is 3x2, the output sequence is
R0G0 --- pixel0 of line 0
B0R1
G1B1
R2G2
B2R0 --- pixel 0 of line 1
G0B0
R1G1
B1R2
G2B2
R0G0 --- pixel 0 of line 2
B0R1
G1B1
R2G2
B2R1 --- LCD driver should not care R1.
ENC
Command Transfer Enable Control
0: Only send pixel data to LCM, not send commands in command
queue.
1: Send commands in command queue first, and then send pixel data to
LCM. The number of commands to be sent is specified by COMMAND.
13:8
COMMAND
Number of commands to be sent to LCD module. N means
N+1 commands will be sent. Maximum value is 63.
7:0
FMT
ROI Transfer Format
Specify the interface size and transfer color format of the ROI. The
interface size should match the Parallel/Serial Interface size setting.
FORMAT is divided into several fields:
Bit 0: Sequence (0:BGR, 1: RGB)
Bit 1: Significance
Bit 2: Padding
Bit 5-3: Color format (010: RGB565, 011: RGB666, 100: RGB888)
Bit 7-6: Interface size (00: 8 bit, 01: 16 bit, 10: 9 bit, 11: 18 bit)
15
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MT2523 Series Reference Manual
RGB56
5
9
16
18
throughput
(pixel/cycle)
0
0 1pixel/2cycle
R4R3R2R1R0G5G4G3
G2G1G0B4B3B2B1B0
x
0
1 1pixel/2cycle
B4B3B2B1B0G5G4G3
G2G1G0R4R3R2R1R0
x
1
0 1pixel/2cycle
G2G1G0B4B3B2B1B0
R4R3R2R1R0G5G4G3
x
1
1 1pixel/2cycle
G2G1G0R4R3R2R1R0
B4B3B2B1B0G5G4G3
x
0
0 1pixel/2cycle
G3R4R3R2R1R0G5G4G3
B0G2G1G0B4B3B2B1B0
x
0
1 1pixel/2cycle
G3B4B3B2B1B0G5G4G3
R0G2G1G0R4R3R2R1R0
x
1
0 1pixel/2cycle
B0G2G1G0B4B3B2B1B0
G3R4R3R2R1R0G5G4G3
x
1
1 1pixel/2cycle
R0G2G1G0R4R3R2R1R0
G3B4B3B2B1B0G5G4G3
x
x
0 1pixel/1cycle
R4R3R2R1R0G5G4G3G2G1G0B4B3B2B1B0
x
x
1 1pixel/1cycle
B4B3B2B1B0G5G4G3G2G1G0R4R3R2R1R0
x
x
0 1pixel/1cycle
xxR4R3R2R1R0G5G4G3G2G1G0B4B3B2B1B0
x
x
1 1pixel/1cycle
xxB4B3B2B1B0G5G4G3G2G1G0R4R3R2R1R0
0
0
0 1pixel/3cycle
R5R4R3R2R1R0xx
G5G4G3G2G1G0xx
B5B4B3B2B1B0xx
0
0
1 1pixel/3cycle
B5B4B3B2B1B0xx
G5G4G3G2G1G0xx
R5R4R3R2R1R0xx
0
1
0 1pixel/3cycle
B5B4B3B2B1B0xx
G5G4G3G2G1G0xx
R5R4R3R2R1R0xx
0
1
1 1pixel/3cycle
R5R4R3R2R1R0xx
G5G4G3G2G1G0xx
B5B4B3B2B1B0xx
1
0
0 1pixel/3cycle
xxR5R4R3R2R1R0
xxG5G4G3G2G1G0
xxB5B4B3B2B1B0
1
0
1 1pixel/3cycle
xxB5B4B3B2B1B0
xxG5G4G3G2G1G0
xxR5R4R3R2R1R0
output
sequence
x
sequence
significance
8
padding
I/F width
format
Table 23-3. WROICON.FORMAT List
8
RGB66
6
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throughput
(pixel/cycle)
1
0 1pixel/3cycle
xxB5B4B3B2B1B0
xxG5G4G3G2G1G0
xxR5R4R3R2R1R0
1
1
1 1pixel/3cycle
xxR5R4R3R2R1R0
xxG5G4G3G2G1G0
xxB5B4B3B2B1B0
x
0
0 1pixel/2cycle
R5R4R3R2R1R0G5G4G3
G2G1G0B5B4B3B2B1B0
x
0
1 1pixel/2cycle
B5B4B3B2B1B0G5G4G3
G2G1G0R5R4R3R2R1R0
x
1
0 1pixel/2cycle
G2G1G0B5B4B3B2B1B0
R5R4R3R2R1R0G5G4G3
x
1
1 1pixel/2cycle
G2G1G0R5R4R3R2R1R0
B5B4B3B2B1B0G5G4G3
0
0
0 2pixel/3cycle
R5R4R3R2R1R0G5G4G3G2G1G0xxxx
B5B4B3B2B1B0R5R4R3R2R1R0xxxx
G5G4G3G2G1G0B5B4B3B2B1B0xxxx
0
0
1 2pixel/3cycle
B5B4B3B2B1B0G5G4G3G2G1G0xxxx
R5R4R3R2R1R0B5B4B3B2B1B0xxxx
G5G4G3G2G1G0R5R4R3R2R1R0xxxx
output
sequence
1
sequence
significance
9
padding
I/F width
format
MT2523 Series Reference Manual
0
1
0 2pixel/3cycle
G5G4G3G2G1G0B5B4B3B2B1B0xxxx
B5B4B3B2B1B0R5R4R3R2R1R0xxxx
R5R4R3R2R1R0G5G4G3G2G1G0xxxx
0
1
1 2pixel/3cycle
G5G4G3G2G1G0R5R4R3R2R1R0xxxx
R5R4R3R2R1R0B5B4B3B2B1B0xxxx
B5B4B3B2B1B0G5G4G3G2G1G0xxxx
1
0
0 2pixel/3cycle
xxxxR5R4R3R2R1R0G5G4G3G2G1G0
xxxxB5B4B3B2B1B0R5R4R3R2R1R0
xxxxG5G4G3G2G1G0B5B4B3B2B1B0
1
0
1 2pixel/3cycle
xxxxB5B4B3B2B1B0G5G4G3G2G1G0
xxxxR5R4R3R2R1R0B5B4B3B2B1B0
xxxxG5G4G3G2G1G0R5R4R3R2R1R0
1
1
0 2pixel/3cycle
xxxxG5G4G3G2G1G0B5B4B3B2B1B0
xxxxB5B4B3B2B1B0R5R4R3R2R1R0
xxxxR5R4R3R2R1R0G5G4G3G2G1G0
1
1
1 2pixel/3cycle
xxxxG5G4G3G2G1G0R5R4R3R2R1R0
xxxxR5R4R3R2R1R0B5B4B3B2B1B0
xxxxB5B4B3B2B1B0G5G4G3G2G1G0
x
x
0 1pixel/1cycle
R5R4R3R2R1R0G5G4G3G2G1G0B5B4B3B2B1B0
x
x
1 1pixel/1cycle
B5B4B3B2B1B0G5G4G3G2G1G0R5R4R3R2R1R0
0
x
0 1pixel/1cycle
R5R4R3R2R1R0xxG5G4G3G2G1G0xxB5B4B3B2B1B0xx
16
RGB66
6
18
24
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8
9
RGB88
8
16
RGB88
8
16
throughput
(pixel/cycle)
x
1 1pixel/1cycle
B5B4B3B2B1B0xxG5G4G3G2G1G0xx R5R4R3R2R1R0xx
1
x
0 1pixel/1cycle
xxR5R4R3R2R1R0xxG5G4G3G2G1G0xxB5B4B3B2B1B0
1
x
1 1pixel/1cycle
xxB5B4B3B2B1B0xxG5G4G3G2G1G0xxR5R4R3R2R1R0
x
0
0 1pixel/3cycle
R7R6R5R4R3R2R1R0
G7G6G5G4G3G2G1G0
B7B6B5B4B3B2B1B0
x
0
1 1pixel/3cycle
B7B6B5B4B3B2B1B0
G7G6G5G4G3G2G1G0
R7R6R5R4R3R2R1R0
x
1
0 1pixel/3cycle
B7B6B5B4B3B2B1B0
G7G6G5G4G3G2G1G0
R7R6R5R4R3R2R1R0
x
1
1 1pixel/3cycle
R7R6R5R4R3R2R1R0
G7G6G5G4G3G2G1G0
B7B6B5B4B3B2B1B0
x
0
0 1pixel/3cycle
R0R7R6R5R4R3R2R1R0
G0G7G6G5G4G3G2G1G0
B0B7B6B5B4B3B2B1B0
x
0
1 1pixel/3cycle
B0B7B6B5B4B3B2B1B0
G0G7G6G5G4G3G2G1G0
R0R7R6R5R4R3R2R1R0
x
1
0 1pixel/3cycle
B0B7B6B5B4B3B2B1B0
G0G7G6G5G4G3G2G1G0
R0R7R6R5R4R3R2R1R0
x
1
1 1pixel/3cycle
R0R7R6R5R4R3R2R1R0
G0G7G6G5G4G3G2G1G0
B0B7B6B5B4B3B2B1B0
x
0
0 2pixel/3cycle
R7R6R5R4R3R2R1R0G7G6G5G4G3G2G1G0
B7B6B5B4B3B2B1B0R7R6R5R4R3R2R1R0
G7G6G5G4G3G2G1G0B7B6B5B4B3B2B1B0
x
0
1 2pixel/3cycle
B7B6B5B4B3B2B1B0G7G6G5G4G3G2G1G0
R7R6R5R4R3R2R1R0B7B6B5B4B3B2B1B0
G7G6G5G4G3G2G1G0R7R6R5R4R3R2R1R0
x
1
0 2pixel/3cycle
G7G6G5G4G3G2G1G0B7B6B5B4B3B2B1B0
B7B6B5B4B3B2B1B0R7R6R5R4R3R2R1R0
R7R6R5R4R3R2R1R0G7G6G5G4G3G2G1G0
x
1
1 2pixel/3cycle
G7G6G5G4G3G2G1G0R7R6R5R4R3R2R1R0
R7R6R5R4R3R2R1R0B7B6B5B4B3B2B1B0
B7B6B5B4B3B2B1B0G7G5G5G4G3G2G1G0
output
sequence
0
sequence
significance
8
padding
RGB88
8
I/F width
format
MT2523 Series Reference Manual
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throughput
(pixel/cycle)
0
0 2pixel/3cycle
xxR7R6R5R4R3R2R1R0G7G6G5G4G3G2G1G0
xxB7B6B5B4B3B2B1B0R7R6R5R4R3R2R1R0
xxG7G6G5G4G3G2G1G0B7B6B5B4B3B2B1B0
x
0
1 2pixel/3cycle
xxB7B6B5B4B3B2B1B0G7G6G5G4G3G2G1G0
xxR7R6R5R4R3R2R1R0B7B6B5B4B3B2B1B0
xxG7G6G5G4G3G2G1G0R7R6R5R4R3R2R1R0
x
1
0 2pixel/3cycle
xxG7G6G5G4G3G2G1G0B7B6B5B4B3B2B1B0
xxB7B6B5B4B3B2B1B0R7R6R5R4R3R2R1R0
xxR7R6R5R4R3R2R1R0G7G6G5G4G3G2G1G0
x
1
1 2pixel/3cycle
xxG7G6G5G4G3G2G1G0R7R6R5R4R3R2R1R0
xxR7R6R5R4R3R2R1R0B7B6B5B4B3B2B1B0
xxB7B6B5B4B3B2B1B0G7G5G5G4G3G2G1G0
x
x
0 1pixel/1cycle
R7R6R5R4R3R2R1R0G7G5G5G4G3G2G1G0B7B6B5B4B3B2B1B0
x
x
1 1pixel/1cycle
B7B6B5B4B3B2B1B0 G7G5G5G4G3G2G1G0R7R6R5R4R3R2R1R0
18
24
output
sequence
significance
x
sequence
padding
I/F width
format
MT2523 Series Reference Manual
Mapping of data order in 2-data-pin protocol with WROICON.FORMAT
General Expression
Sequence setting in LCD_WROICON/Data
written to SIF_SPE_SDAT port
D23 D22 D21 D20 D19 D18 D17 D16 D15 D14 D13 D12 D11 D10 D9 D8 D7 D6 D5 D4 D3 D2 D1 D0
SIF_2PIN_SIZE (I/F
width)
LSDA0
LSA0
LSDA0
18
LSA0
LSDA0
16
LSA0
LSDA0
12
LSA0
24
Output
sequence in 2data-pin
A0450084
Bit
Name
Type
Reset
Bit
Name
Type
Reset
A0
A0
A0
A0
A0
A0
A0
A0
D23
D11
D17
D8
D15
D7
D11
D5
D22
D10
D16
D7
D14
D6
D10
D4
D21
D9
D15
D6
D13
D5
D9
D3
D20
D8
D14
D5
D12
D4
D8
D2
D19
D7
D13
D4
D11
D3
D7
D1
D18
D6
D12
D3
D10
D2
D6
D0
D17
D5
D11
D2
D9
D1
D16
D4
D10
D1
D8
D0
D15 D14 D13 D12
D3 D2 D1 D0
D9
D0
LCD_WROIOF LCD Region of Interest Window Offset
S
Register
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
ROI Window Column Offset, please see figure 13.
10:0
X_OFFSET
ROI Window ROW Offset, please see figure 13.
© 2015 - 2018 Airoha Technology Corp.
16
0
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MT2523 Series Reference Manual
A0450088
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_WROICA LCD Region of Interest Command Address
DD
Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
Bit(s) Mnemonic Name
7:4
0
LCM Address
There are only 5 possible values that may be set for ADDR:
0h: Commands are sent to LCD-B LCM CS0 and the A0 bit will be set to
0.
2h: Commands are sent to LCD-B LCM CS1 and the A0 bit will be set to
0.
4h: Commands are sent to LCD-B LCM CS2 and the A0 bit will be set to
0.
8h: Commands are sent to LCD-C LCM CS0 and the A0 bit will be set to
0.
Ah: Commands are sent to LCD-C LCM CS1 and the A0 bit will be set to
0.
LCD_WROIDA
LCD Region of Interest Data Address Register
DD
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
Bit(s) Mnemonic Name
7:4
ADDR
RW
0
0
Description
ADDR
A045008C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
00000000
ADDR
ADDR
RW
0
0
0
Description
LCM Address
There are only 5 possible values that may be set for ADDR:
1h: Commands are sent to LCD-B LCM CS0 and the A0 bit will be set to
1.
3h: Commands are sent to LCD-B LCM CS1 and the A0 bit will be set to
1.
5h: Commands are sent to LCD-B LCM CS2 and the A0 bit will be set to
1.
9h: Commands are sent to LCD-C LCM CS0 and the A0 bit will be set to
1.
Bh: Commands are sent to LCD-C LCM CS1 and the A0 bit will be set to
1.
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MT2523 Series Reference Manual
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
24
23
22
0
0
0
ROW
RW
0
0
COL
RW
0
9
8
0
0
7
21
6
0
5
00000000
20
19
18
17
0
0
0
0
1
0
0
0
0
0
0
4
3
Bit(s) Mnemonic Name
Description
26:16
ROW
ROI Window Row Size
Specify the number of rows in the ROI window.
10:0
COL
ROI Window Column Size
Specify the number of columns in the ROI window.
Layers in memory
(L0WINOFS.X,
L0WINOFS.Y)
(WROIOFS.X,
WROIOFS.Y)
L0WINPITCH
(L3WINOFS.X,
L3WINOFS.Y)
L1WINADD
L1WINSIZE.ROW
L1WINMOFS
L3WINMOFS
L3WINPITCH
L3WINSIZE.ROW
L3WINSIZE.COL
(L1WINOFS.X,
L1WINOFS.Y)
ROI
Layer 1
L1WINPITCH
L3WINADD
L0WINSIZE.COL
Layer 0
WROISIZE.COL
L3WINSIZE.COL
L1WINSIZE.COL
L0WINSIZE.ROW
L0WINMOFS
0
Layers in ROI coordinate system
Layer 3
L0WINSIZE.COL
L0WINSIZE.ROW
L0WINADD
(0,0)
2
16
L1WINSIZE.COL
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_WROISIZ
LCD Region of Interest Size Register
E
WROISIZE.ROW
A0450090
L1WINSIZE.ROW
L3WINSIZE.ROW
L0WINCON.ROTATE = 0
L1WINCON.ROTATE = 3
L3WINCON.ROTATE = 1
(2047,2047)
Figure 23-11. Layers and ROI setting
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MT2523 Series Reference Manual
WROI_W2MADD
ROI in memory
WROI_W2MOFS
row 1
WROISIZE.COL
WROISIZE.ROW
row 0
ROI
WROI_W2M_PITCH
row 0
row 1
Each row is separated by a pitch when written to memory.
The pitch between each line is specified by WROI_W2M_PITCH
Figure 23-12. ROI write to memory setting
A045009C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
LCD_WROI_B LCD Region of Interest Background Color
GCLR
Register
30
0
29
14
13
0
0
0
27
26
25
12
11
10
0
0
ALPHA
RW
0
0
0
15
28
GREEN
RW
0
0
0
00000000
24
23
22
21
20
19
18
17
0
0
0
0
0
0
0
0
0
0
BLUE
RW
0
0
1
0
0
0
9
8
0
0
7
0
6
5
0
RED
RW
4
3
2
Bit(s) Mnemonic Name
Description
31:24
ALPHA
Alpha component of ROI window's background color
23:16
RED
Red component of ROI window's background color
15:8
GREEN
Green component of ROI window's background color
7:0
BLUE
Blue component of ROI window's background color
A04500B0
Bit
31
LCD_L0WINC
LCD Layer 0 Window Control Register
ON
30
29
28
27
26
Name
RGB_
SWAP
Type
Reset
Bit
RW
0
Name
Type
Reset
15
14
SRC_
SRC KEYE
N
RW
RW
0
0
13
12
11
RW
0
9
24
DST_
KEYE
N
RW
0
8
23
22
21
0
7
0
RW
6
0
5
0
RW
0
0
00000000
20
19
CLRFMT
ALPH
A_EN
ROTATE
0
10
25
16
0
4
3
18
17
2
1
0
0
DITH
ER_E
N
RW
0
16
BYTE
_SWA
P
RW
0
0
ALPHA
0
0
© 2015 - 2018 Airoha Technology Corp.
0
0
RW
0
0
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
26
RGB_SWAP
Swap RGB order of pixel data read from memory.
24
DST_KEYEN
Enable destination color key. If the color format is YUYV422,
this function is not supported.
CLRFMT
Color format
0000: 8bpp indexed color
0001: RGB565
0010: YUYV422
0011: RGB888
0100: ARGB8888
0101: PARGB8888
0110: XRGB
0111: ARGB6666
1000: PARGB6666
1001: 4bpp index color mode
1010: 2bpp index color mode
1011: 1bpp index color mode
1000: PARGB6666
Others: Reserved
18
DITHER_EN
Enable dithering. Please refer to LCD_DITHERCON
16
BYTE_SWAP
Swap high byte and low byte of pixel data read from memory.
15
SRC
Disable auot-increment of the source pixel address. It makes
the value of each pixel is the same as the first pixel of this
frame. It is just for debug.
14
SRC_KEYEN
Enable source color key. If the color format is YUYV422, this
function is not supported
ROTATE
Rotation configuration
000: no rotation
001: 90 degree rotation (counterclockwise, single request only)
010: 180 degree rotation (counterclockwise)
011: 270 degree rotation (counterclockwise, single request only)
100: Horizontal flip
101: Horizontal flip then 90 degree rotation (counterclockwise, single
request only)
110: Horizontal flip then 180 degree rotation (counterclockwise)
111: Horizontal flip then 270 degree rotation (counterclockwise, single
request only)
ALPHA_EN
Enable alpha blending
ALPHA
Constant alpha value
23:20
13:11
8
7:0
Note: SRC_KEYEN and DST_KEYEN are exclusive setting. They can’t be enabled at the same time.
RGB_SWP
Swap RGB order of pixel data read from memory
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MT2523 Series Reference Manual
RGB_SWP=0
BYTE_SWP=1
RGB_SWP=0
BYTE_SWP=0
31
ARGB
23
A
31
PARGB
23
31
15
23
7
7
G
R
15
RGB565
15
7
31
15
7
B
B
0
R R R R RGGGGGG B B B B B
4321054321043210
15
G
15
23
15
0
R
7
B
0
GGG B B B B B R R R R R GGG
2104321043210543
15
7
G
7
15
15
7
The byte order in memory of YUYV422 is described in . Y0 is the Y component of the first pixel, P0. Y1 is the Y
component of the second pixel, P1.
Y1
2
V
1
Y0
0
byte order in memory
U
P0 P1
image of this layer
Figure 23-14. YUYV422 byte order in memory
Note: When use YUYV422 mode, the pitch of this layer (LCD_LxWINPITCH) must be even, and the base address
(LCD_LxWINADD) of this layer also must be 4-byte aligned. Source color key and destination color key are NOT
supported in YUYV422 mode.
© 2015 - 2018 Airoha Technology Corp.
B
0
B
0
GGGR R R R R B B B B B GGG
2104321043210543
Figure 23-13. Layer source RGB format
3
0
7
R
0
0
X
G
R
B B B B B GGGGGG R R R R R
4321054321043210
A
B
R
0
7
15
0
A
PB
G
0
7
15
23
0
7
15
23
R
7
B
PG
R
G
15
23
31
R
15
G
PR
0
7
B
31
PR
G
23
R
0
7
15
31
R
PG
23
0
7
B
R
7
7
PB
X
0
G
15
0
23
31
X
15
B
A
0
R
B
31
A
7
23
A
0
PR
15
23
31
A
7
G
B
0
R
PG
B
G
7
15
23
0
7
R
23
PB
0
15
G
31
B
G
15
23
B
0
7
R
31
PB
PG
15
23
0
B
G
PR
X
RGB888
7
R
A
XRGB
15
RGB_SWP=1
BYTE_SWP=1
RGB_SWP=1
BYTE_SWP=0
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MT2523 Series Reference Manual
Note: If color depth is YUYV422, the YUYV422 source will be translated to RGB domain and then overlaid. The YUV
to RGB transformation is following the equations.
45 Y
32 0
R
1
× 32 − 11 − 23 • U − 128
G =
32 32 57
0 V − 128
B
The alpha blending formula is selected by source color format automatically.
If source color format is RGB565, RGB888 or YUYV422 then the alpha blending formula is
dst.r = dst.r * (0xff - SCA ) / 0xff + src.r * SCA / 0xff;
dst.g = dst.g * (0xff - SCA ) / 0xff + src.g * SCA / 0xff;
dst.b = dst.b * (0xff - SCA ) / 0xff + src.b * SCA / 0xff;
dst.a = dst.a * (0xff - SCA ) / 0xff + SCA;
If source color format is PARGB then the alpha blending formula is
if ( SCA != 0xff) {
dst.r = dst.r * (0xff - src.a * SCA / 0xff) / 0xff + src.r * SCA / 0xff;
dst.g = dst.g * (0xff - src.a * SCA / 0xff) / 0xff + src.g * SCA / 0xff;
dst.b = dst.b * (0xff - src.a * SCA / 0xff) / 0xff + src.b * SCA / 0xff;
dst.a = dst.a * (0xff - src.a * SCA / 0xff) / 0xff + src.a * SCA / 0xff;
} else { // SCA == 0xff
dst.r = dst.r * (0xff - src.a ) / 0xff + src.r;
dst.g = dst.g * (0xff - src.a ) / 0xff + src.g;
dst.b = dst.b * (0xff - src.a ) / 0xff + src.b;
dst.a = dst.a * (0xff - src.a ) / 0xff + src.a
}
If source color format is ARGB then the alpha blending formula is
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if ( SCA != 0xff ) {
dst.r = dst.r * (0xff - src.a * SCA / 0xff) / 0xff + src.r * src.a / 0xff * SCA / 0xff;
dst.g = dst.g * (0xff - src.a * SCA / 0xff) / 0xff + src.g * src.a / 0xff * SCA / 0xff;
dst.b = dst.b * (0xff - src.a * SCA / 0xff) / 0xff + src.b * src.a / 0xff * SCA / 0xff;
dst.a = dst.a * (0xff - src.a * SCA / 0xff) / 0xff + src.a * SCA / 0xff;
} else { // SCA == 0xff
if SCA = 0xff
dst.r = dst.r * (0xff - src.a ) / 0xff + src.r * src.a / 0xff;
dst.g = dst.g * (0xff - src.a ) / 0xff + src.g * src.a / 0xff;
dst.r = dst.b * (0xff - src.a ) / 0xff + src.b * src.a / 0xff;
dst.a = dst.a * (0xff - src.a ) / 0xff + src.a;
}
src.r, src.g, src.b, and src.a are this layer’s pixel value.
dst.r, dst.r, dst.b, and dst.a are the result of alpha blending of all lower layers.
Note: SCA is the source constant alpha specified by LCD_L0WINCON.ALPHA.
Alpha blending hardware approximation:
If source color format is RGB565, RGB888 or YUYV422 then the hardware implements the following equation to
approximate the above equation of 8-bit index color, RGB565, RGB888 or YUYV422. Only list red channel, other
channels are the same.
tmp.r = SCA × (src.r - dst.r) + 255 * dst.r + 128;
dst'.r = ( tmp.r + tmp.r >> 8) >> 8;
tmp_d.a = dst.a × (255 - SCA) + 128
tmp.a = (tmp_d.a + tmp_d.a >> 8) >> 8
dst'.a = src.a + tmp.a
If source color format is PARGB then the hardware implements the following equation to approximate the above
equation of PARGB. Only list red channel, others are the same.
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if ( SCA != 0xff ) {
tmp_s.a = src.a × SCA + 128
src'.a = (tmp_s.a + tmp_s.a >> 8) >> 8
tmp_s.r = src.r × SCA + 128
src'.r = (tmp_s.r + tmp_s.r >> 8) >> 8
tmp_d.r = dst.r × (255 - src'.a) + 128
tmp.r = (tmp_d.r + tmp_d.r >> 8) >> 8
dst'.r = src'.r + tmp.r
} else { // SCA == 0xff
tmp_d.r = dst.r × (255 - src.a) + 128
tmp.r = (tmp_d.r + tmp_d.r >> 8) >> 8
dst'.r = src.r + tmp.r
}
If source color format is ARGB then the hardware implements the following equation to approximate the above
equation of ARGB. Only list red and alpha channels, others are the same.
if ( SCA != 0xff ) {
tmp_s.a = src.a × SCA + 128;
src'.a = (tmp_s.a + tmp_s.a >> 8) >> 8;
tmp_d.a = dst.a × (255 - src'.a) + 128;
tmp.a = (tmp_d.a + tmp_d.a >> 8) >> 8;
dst'.a = src'.a + tmp.a;
tmp.r = src'.a × (src.r - dst.r) + 255 * dst.r + 128;
dst'.r = ( tmp.r + tmp.r >> 8) >> 8;
} else { // SCA == 0xff
tmp_d.a = dst.a × (255 - src.a) + 128;
tmp.a = (tmp_d.a + tmp_d.a >> 8) >> 8;
dst'.a = src.a + tmp.a;
tmp.r = src.a × (src.r - dst.r) + 255 * dst.r + 128;
dst'.r = ( tmp.r + tmp.r >> 8) >> 8;
}
Effect Ordering: Each layer has many effects which can be turned on concurrently. The order the effects are
applied are as follows:
1.
Memory Offset and Pitch are first used to determine which part of the layer in memory to display.
2.
If turned on, a scroll effect is then applied.
3.
Rotation is applied to the layer.
4.
Finally, swap and dither are applied in this order
5.
The layer is alpha blended with previous layers and/or the ROI background.
6.
The ROI output is sent to the LCM and/or memory in the color format set by the corresponding register.
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MT2523 Series Reference Manual
A04500B4
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
LCD_L0WINK
LCD Layer 0 Color Key Register
EY
30
29
28
27
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
CLRKEY[31:16]
RW
0
0
0
0
0
0
0
0
0
0
CLRKEY[15:0]
RW
0
0
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
31:0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
LCD_L0WINO
LCD Layer 0 Window Display Offset Register
FS
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
00000000
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
Layer 0 Window Column Offset, please see figure 13.
10:0
X_OFFSET
Layer 0 Window ROW Offset, please see figure 13.
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
LCD_L0WINA LCD Layer 0 Window Display Start Address
DD
Register
30
0
29
0
31:0
28
0
27
0
26
25
0
0
ADDR[31:16]
RW
0
0
0
ADDR[15:0]
RW
0
0
15
14
13
12
11
10
0
0
0
0
0
0
Bit(s) Mnemonic Name
ADDR
0
The source color key or destination key, which depends on
LCD_L0WINCON.SRC_KEYEN or
LCD_L0WINCON.DST_KEYEN
31
A04500BC
16
Description
CLRKEY
A04500B8
Bit
Name
Type
Reset
Bit
Name
Type
Reset
26
00000000
9
24
23
8
7
16
0
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
Description
Layer 0 source start address (byte address), please see Figure
13. The address must be aligned to layer color depth
boundary as Table 6. The LCD has a special function to use
the LCM as a layer's frame buffer.
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MT2523 Series Reference Manual
Table 23-4. Layer address alignment constraint
LCD_L0WINCON.CLRFMT
ADDR alignment
0001
RGB565
2 bytes alignment
0100/0101,
ARGB8888/ PRGB8888
4 bytes alignment
0011
RGB888
no alignment constraint
0010
YUYV422
4 bytes alignment
0000
8bpp index color mode
4 bytes alignment
1001
4bpp index color mode
4 bytes alignment
1010
2bpp index color mode
4 bytes alignment
1011
1bpp index color mode
4 bytes alignment
A04500C0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Color format
LCD_L0WINSI
LCD Layer 0 Window Size
ZE
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
22
0
0
0
0
9
8
0
0
7
20
19
18
17
0
0
0
0
COLUMN
RW
0
0
0
1
0
0
0
0
0
6
21
ROW
RW
0
5
4
3
2
16
0
Bit(s) Mnemonic Name
Description
26:16
ROW
Layer 0 Window Row Size in unit of pixel, please see Figure
13.
10:0
COLUMN
Layer 0 Window Column Size in unit of pixel, please see
Figure 13.
A04500C8
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_L0WINM
LCD Layer 0 Memory Offset
OFS
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
Layer 0 Window Column Offset, please see figure 13.
10:0
X_OFFSET
Layer 0 Window ROW Offset, please see figure 13.
© 2015 - 2018 Airoha Technology Corp.
16
0
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MT2523 Series Reference Manual
A04500CC
Bit
Name
Type
Reset
LCD_L0WINPI
LCD Layer 0 Memory Pitch
TCH
15
14
13
12
11
10
9
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
15:0
Bit
31
30
29
28
27
26
Type
Reset
Bit
RW
0
Type
Reset
14
SRC_
SRC KEYE
N
RW
RW
0
0
13
12
0
RW
0
26
RGB_SWAP
24
DST_KEYEN
CLRFMT
18
DITHER_EN
16
BYTE_SWAP
15
SRC
14
SRC_KEYEN
13:11
11
4
3
2
1
0
0
0
0
0
0
0
0
ROTATE
10
25
9
24
DST_
KEYE
N
RW
0
8
23
22
21
0
RW
0
00000000
20
19
CLRFMT
0
7
0
RW
6
0
5
ALPH
A_EN
ROTATE
Bit(s) Mnemonic Name
23:20
5
LCD_L1WINCO
LCD Layer 1 Window Control Register
N
RGB_
SWAP
Name
6
Layer 0 Memory Pitch in unit of byte, please see Figure 13.
This should be set to the total width of the image in memory
times the number of bytes per pixel. For 4 bpp color depth
settings, the pitch must be a multple of 4. For 2 bpp color
depth settings, the pitch must be a multiple of 2. For 3 bpp
(RGB888) color depth settings, the pitch may be a multiple of
any number
Name
15
7
PITCH
RW
0
0
Description
PITCH
A04500E0
8
0000
0
4
3
18
17
2
1
0
0
DITH
ER_E
N
RW
0
16
BYTE
_SWA
P
RW
0
0
ALPHA
0
0
0
0
RW
0
0
Description
Color format
0000: 8bpp indexed color
0001: RGB565
0010: YUYV422
0011: RGB888
0100: ARGB8888
0101: PARGB8888
0110: XRGB
0111: ARGB6666
1000: PARGB6666
1001: 4bpp index color mode
1010: 2bpp index color mode
1011: 1bpp index color mode
1000: PARGB6666
Others: Reserved
Disable auot-increment of the source pixel address. It makes
the value of each pixel is the same as the first pixel of this
frame. It is just for debug.
Rotation configuration
000: no rotation
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
8
7:0
A04500E4
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
Description
001: 90 degree rotation (counterclockwise, single request only)
010: 180 degree rotation (counterclockwise)
011: 270 degree rotation (counterclockwise, single request only)
100: Horizontal flip
101: Horizontal flip then 90 degree rotation (counterclockwise, single
request only)
110: Horizontal flip then 180 degree rotation (counterclockwise)
111: Horizontal flip then 270 degree rotation (counterclockwise, single
request only)
ALPHA_EN
Enable alpha blending
ALPHA
Constant alpha value
LCD_L1WINKE
LCD Layer 1 Color Key Register
Y
30
29
28
27
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
CLRKEY[31:16]
RW
0
0
0
0
0
0
0
0
0
0
CLRKEY[15:0]
RW
0
0
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
31:0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
LCD_L1WINOF
LCD Layer 1 Window Display Offset Register
S
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
00000000
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
Layer 1 Window Column Offset, please see figure 13.
10:0
X_OFFSET
Layer 1 Window ROW Offset, please see figure 13.
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
LCD_L1WINA LCD Layer 1 Window Display Start Address
DD
Register
30
0
29
0
0
The source color key or destination key, which depends on
LCD_L1WINCON.SRC_KEYEN or
LCD_L1WINCON.DST_KEYEN
31
A04500EC
16
Description
CLRKEY
A04500E8
Bit
Name
Type
Reset
Bit
Name
Type
Reset
26
00000000
28
0
27
0
26
25
0
0
ADDR[31:16]
RW
0
0
0
ADDR[15:0]
RW
0
0
15
14
13
12
11
10
0
0
0
0
0
0
9
24
23
8
7
16
0
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
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4
3
2
16
0
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
31:0
A04500F0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
Layer 1 source start address (byte address), please see Figure
13. The address must be aligned to layer color depth
boundary as Table 6. The LCD has a special function to use
the LCM as a layer's frame buffer.
ADDR
LCD_L1WINSI
LCD Layer 1 Window Size
ZE
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
22
0
0
0
0
9
8
0
0
7
20
19
18
17
0
0
0
0
COLUMN
RW
0
0
0
1
0
0
0
0
0
6
21
ROW
RW
0
5
4
3
2
16
0
Bit(s) Mnemonic Name
Description
26:16
ROW
Layer 1 Window Row Size in unit of pixel, please see Figure
13.
10:0
COLUMN
Layer 1 Window Column Size in unit of pixel, please see
Figure 13.
A04500F8
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_L1WINM
LCD Layer 1 Memory Offset
OFS
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
Layer 1 Window Column Offset, please see figure 13.
10:0
X_OFFSET
Layer 1 Window ROW Offset, please see figure 13.
A04500FC
Bit
Name
Type
Reset
LCD_L1WINPI
LCD Layer 1 Memory Pitch
TCH
15
14
13
12
11
10
9
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
15:0
PITCH
8
7
PITCH
RW
0
0
16
0
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Description
Layer 1 Memory Pitch in unit of byte, please see Figure 13.
This should be set to the total width of the image in memory
times the number of bytes per pixel. For 4 bpp color depth
settings, the pitch must be a multple of 4. For 2 bpp color
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A0450110
Bit
31
Description
depth settings, the pitch must be a multiple of 2. For 3 bpp
(RGB888) color depth settins, the pitch may be a multiple of
any number
LCD_L2WINC
LCD Layer 2 Window Control Register
ON
30
29
28
27
26
Name
RGB_
SWAP
Type
Reset
Bit
RW
0
Name
Type
Reset
15
14
SRC_
SRC KEYE
N
RW
RW
0
0
13
12
0
RW
0
26
RGB_SWAP
24
DST_KEYEN
CLRFMT
18
DITHER_EN
16
BYTE_SWAP
15
SRC
14
SRC_KEYEN
13:11
8
7:0
10
9
24
DST_
KEYE
N
RW
0
8
23
22
21
0
RW
0
20
19
CLRFMT
0
7
0
RW
6
0
5
ALPH
A_EN
ROTATE
Bit(s) Mnemonic Name
23:20
11
25
00000000
0
4
3
18
17
2
1
0
0
DITH
ER_E
N
RW
0
16
BYTE
_SWA
P
RW
0
0
ALPHA
0
0
0
0
RW
0
0
Description
Color format
0000: 8bpp indexed color
0001: RGB565
0010: YUYV422
0011: RGB888
0100: ARGB8888
0101: PARGB8888
0110: XRGB
0111: ARGB6666
1000: PARGB6666
1001: 4bpp index color mode
1010: 2bpp index color mode
1011: 1bpp index color mode
1000: PARGB6666
Others: Reserved
Disable auot-increment of the source pixel address. It makes
the value of each pixel is the same as the first pixel of this
frame. It is just for debug.
ROTATE
Rotation configuration
000: no rotation
001: 90 degree rotation (counterclockwise, single request only)
010: 180 degree rotation (counterclockwise)
011: 270 degree rotation (counterclockwise, single request only)
100: Horizontal flip
101: Horizontal flip then 90 degree rotation (counterclockwise, single
reqest only)
110: Horizontal flip then 180 degree rotation (counterclockwise)
111: Horizontal flip then 270 degree rotation (counterclockwise, single
request only)
ALPHA_EN
Enable alpha blending
ALPHA
Constant alpha value
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MT2523 Series Reference Manual
A0450114
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
LCD_L2WINK
LCD Layer 2 Color Key Register
EY
30
29
28
27
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
CLRKEY[31:16]
RW
0
0
0
0
0
0
0
0
0
0
CLRKEY[15:0]
RW
0
0
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
31:0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
LCD_L2WINO
LCD Layer 2 Window Display Offset Register
FS
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
00000000
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
Layer 2 Window Column Offset, please see figure 13.
10:0
X_OFFSET
Layer 2 Window ROW Offset, please see figure 13.
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
LCD_L2WINA LCD Layer 2 Window Display Start Address
DD
Register
30
0
29
0
31:0
28
0
27
0
26
25
0
0
ADDR[31:16]
RW
0
0
0
ADDR[15:0]
RW
0
0
15
14
13
12
11
10
0
0
0
0
0
0
Bit(s) Mnemonic Name
ADDR
0
The source color key or destination key, which depends on
LCD_L2WINCON.SRC_KEYEN or
LCD_L2WINCON.DST_KEYEN
31
A045011C
16
Description
CLRKEY
A0450118
Bit
Name
Type
Reset
Bit
Name
Type
Reset
26
00000000
9
24
23
8
7
16
0
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
Description
Layer 2 source start address (byte address), please see Figure
13. The address must be aligned to layer color depth
boundary as Table 6. The LCD has a special function to use
the LCM as a layer's frame buffer.
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
A0450120
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_L2WINSI
LCD Layer 2 Window Size
ZE
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
22
0
0
0
0
9
8
0
0
7
20
19
18
17
0
0
0
0
COLUMN
RW
0
0
0
1
0
0
0
0
0
6
21
ROW
RW
0
5
4
3
2
16
0
Bit(s) Mnemonic Name
Description
26:16
ROW
Layer 2 Window Row Size in unit of pixel, please see Figure
13.
10:0
COLUMN
Layer 2 Window Column Size in unit of pixel, please see
Figure 13.
A0450128
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_L2WINM
LCD Layer 2 Memory Offset
OFS
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
Layer 2 Window Column Offset, please see figure 13.
10:0
X_OFFSET
Layer 2 Window ROW Offset, please see figure 13.
A045012C
Bit
Name
Type
Reset
LCD_L2WINPI
LCD Layer 2 Memory Pitch
TCH
15
14
13
12
11
10
9
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
15:0
PITCH
8
7
PITCH
RW
0
0
16
0
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Description
Layer 2 Memory Pitch in unit of byte, please see Figure 13.
This should be set to the total width of the image in memory
times the number of bytes per pixel. For 4 bpp color depth
settings, the pitch must be a multple of 4. For 2 bpp color
depth settings, the pitch must be a multiple of 2. For 3 bpp
(RGB888) color depth settins, the pitch may be a multiple of
any number
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
A0450140
Bit
31
LCD_L3WINC
LCD Layer 3 Window Control Register
ON
30
29
28
27
26
Name
RGB_
SWAP
Type
Reset
Bit
RW
0
Name
Type
Reset
15
14
SRC_
SRC KEYE
N
RW
RW
0
0
13
12
11
0
RW
0
RGB_SWAP
24
DST_KEYEN
18
DITHER_EN
16
BYTE_SWAP
15
SRC
14
SRC_KEYEN
8
A0450144
Bit
Name
31
8
23
22
21
RW
0
0
20
19
CLRFMT
0
7
0
RW
6
0
5
ALPH
A_EN
0
4
3
18
17
2
1
0
0
DITH
ER_E
N
RW
0
0
ALPHA
0
0
0
0
RW
0
0
Disable auot-increment of the source pixel address. It makes
the value of each pixel is the same as the first pixel of this
frame. It is just for debug.
ROTATE
Rotation configuration
000: no rotation
001: 90 degree rotation (counterclockwise, single request only)
010: 180 degree rotation (counterclockwise)
011: 270 degree rotation (counterclockwise, single request only)
100: Horizontal flip
101: Horizontal flip then 90 degree rotation (counterclockwise, single
reqest only)
110: Horizontal flip then 180 degree rotation (counterclockwise)
111: Horizontal flip then 270 degree rotation (counterclockwise, single
request only)
ALPHA_EN
Enable alpha blending
ALPHA
Constant alpha value
LCD_L3WINK
LCD Layer 3 Color Key Register
EY
30
16
BYTE
_SWA
P
RW
0
Color format
0000: 8bpp indexed color
0001: RGB565
0010: YUYV422
0011: RGB888
0100: ARGB8888
0101: PARGB8888
0110: XRGB
0111: ARGB6666
1000: PARGB6666
1001: 4bpp index color mode
1010: 2bpp index color mode
1011: 1bpp index color mode
1000: PARGB6666
Others: Reserved
CLRFMT
7:0
24
DST_
KEYE
N
RW
0
Description
26
13:11
9
ROTATE
Bit(s) Mnemonic Name
23:20
10
25
00000000
29
28
27
26
25
24
23
CLRKEY[31:16]
22
© 2015 - 2018 Airoha Technology Corp.
00000000
21
20
19
18
17
16
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MT2523 Series Reference Manual
Type
Reset
Bit
Name
Type
Reset
0
0
0
0
0
0
0
0
0
0
0
CLRKEY[15:0]
RW
0
0
0
0
1
0
0
0
0
0
0
0
14
13
12
11
10
0
0
0
0
0
0
Bit(s) Mnemonic Name
31:0
9
8
0
7
6
5
4
3
2
The source color key or destination key, which depends on
LCD_L3WINCON.SRC_KEYEN or
LCD_L3WINCON.DST_KEYEN
LCD_L3WINO
LCD Layer 3 Window Display Offset Register
FS
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
00000000
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
Layer 3 Window Column Offset, please see figure 13.
10:0
X_OFFSET
Layer 3 Window ROW Offset, please see figure 13.
A045014C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
LCD_L3WINA LCD Layer 3 Window Display Start Address
DD
Register
30
0
29
0
28
0
27
0
25
0
0
ADDR[31:16]
RW
0
0
0
ADDR[15:0]
RW
0
0
14
13
12
11
10
0
0
0
0
0
0
Bit(s) Mnemonic Name
9
24
23
8
7
16
0
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
Description
Layer 3 source start address (byte address), please see Figure
13. The address must be aligned to layer color depth
boundary as Table 6. The LCD has a special function to use
the LCM as a layer's frame buffer.
ADDR
A0450150
Bit
Name
Type
Reset
Bit
Name
Type
Reset
26
15
31:0
0
Description
CLRKEY
A0450148
Bit
Name
Type
Reset
Bit
Name
Type
Reset
0
15
0
RW
0
LCD_L3WINSI
LCD Layer 3 Window Size
ZE
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
22
0
0
0
0
9
8
0
0
7
20
19
18
17
0
0
0
0
COLUMN
RW
0
0
0
1
0
0
0
0
0
6
21
ROW
RW
0
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4
3
2
16
0
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
26:16
ROW
Layer 3 Window Row Size in unit of pixel, please see Figure
13.
10:0
COLUMN
Layer 3 Window Column Size in unit of pixel, please see
Figure 13.
A0450158
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_L3WINM
LCD Layer 3 Memory Offset
OFS
31
30
29
28
27
26
25
15
14
13
12
11
10
0
0
0
00000000
24
23
0
0
Y_OFFSET
RW
0
0
0
0
X_OFFSET
RW
0
0
0
9
8
0
0
7
22
21
20
6
5
4
19
18
17
0
0
0
1
0
0
0
0
0
3
2
Bit(s) Mnemonic Name
Description
26:16
Y_OFFSET
Layer 3 Window Column Offset, please see figure 13.
10:0
X_OFFSET
Layer 3 Window ROW Offset, please see figure 13.
A045015C
Bit
Name
Type
Reset
LCD_L3WINPI
LCD Layer 3 Memory Pitch
TCH
15
14
13
12
11
10
9
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
15:0
Bit
Name
Type
Reset
Bit
31
15
SIF1_
STR_
Name BYTE
_MO
D
Type
RW
Reset
0
7
PITCH
RW
0
0
0
0000
6
5
4
3
2
1
0
0
0
0
0
0
0
0
Description
Layer 3 Memory Pitch in unit of byte, please see Figure 13.
This should be set to the total width of the image in memory
times the number of bytes per pixel. For 4 bpp color depth
settings, the pitch must be a multple of 4. For 2 bpp color
depth settings, the pitch must be a multiple of 2. For 3 bpp
(RGB888) color depth settins, the pitch may be a multiple of
any number
PITCH
A0450270
8
16
LCD_SIF_STR
LCD SIF Start Byte Configuration Register
_BYTE_CON
00000000
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
SIF1_
STR_
BYTE
_SWI
TCH
RW
0
SIF0_ SIF0_
STR_ STR_
SIF1_STR_DATA_
BYTE BYTE
SIZE
_MO _SWI
D
TCH
RW
RW
RW
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
SIF0_STR_DATA_
SIZE
RW
0
0
0
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
15
SIF1_STR_BYTE_M Start Byte mode of serial interface 1.
OD
0: Start Byte mode off
1: Start Byte mode on
14
SIF1_STR_BYTE_S
WITCH
Start Byte mod2 switch of serial interface 1.
0: Start Byte mod2 switch off
1: Start Byte mod2 switch on
SIF1_STR_DATA_S Interface size of the data part of serial interface 1 under Start
IZE
Byte mode.
000: 8 bits
001: 9 bits
010: 16 bits
011: 18 bits
100: 24 bits
101: 32 bits
10:8
Start Byte mode of serial interface 0.
0: Start Byte mode off
1: Start Byte mode on
7
SIF0_STR_BYTE_
MOD
6
SIF0_STR_BYTE_S Start Byte mod2 switch of serial interface 0.
WITCH
0: Start Byte mod2 switch off
1: Start Byte mod2 switch on
SIF0_STR_DATA_S Interface size of the data part of serial interface 0 under Start
IZE
Byte mode.
000: 8 bits
001: 9 bits
010: 16 bits
011: 18 bits
100: 24 bits
101: 32 bits
2:0
A0450278
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
LCD_SIF_WR_
LCD SIF Write Start Byte Value
STR_BYTE
30
29
28
27
26
13
12
11
10
15
14
0
SIF1_WR_STR_BYTE2
RW
0
0
0
0
0
0
SIF1_WR_STR_BYTE
RW
0
0
0
0
0
Bit(s) Mnemonic Name
25
0
00000000
24
23
22
0
0
0
SIF0_WR_STR_BYTE2
RW
0
0
0
0
0
SIF0_WR_STR_BYTE
RW
0
0
0
0
9
8
0
0
7
0
6
21
20
19
18
5
4
3
2
17
0
16
0
1
0
0
0
Description
31:24
SIF1_WR_STR_BYT Value of the write start byte2 of serial interface 1.
E2
23:16
SIF0_WR_STR_BY
TE2
15:8
SIF1_WR_STR_BYT Value of the write start byte of serial interface 1.
E
7:0
SIF0_WR_STR_BY
TE
Value of the write start byte2 of serial interface 0.
Value of the write start byte of serial interface 0.
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MT2523 Series Reference Manual
A045027C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
LCD_SIF_RD_
LCD SIF Read Start Byte Value
STR_BYTE
31
30
29
28
27
26
25
24
23
22
15
14
13
12
11
10
9
8
7
6
0
0
0
0
0
0
SIF1_RD_STR_BYTE
RW
0
0
0
0
Bit(s) Mnemonic Name
00000000
21
20
19
18
17
16
5
4
3
2
1
0
0
0
SIF0_RD_STR_BYTE
RW
0
0
0
0
Description
15:8
SIF1_RD_STR_BYT Value of the read start byte of serial interface 1.
E
7:0
SIF0_RD_STR_BYT Value of the read start byte of serial interface 0.
E
LCD_SIF_
A045030 PAD_INP
LCD serial pad selection
0
UT_SELE
CT
Bit
31 30
Name
Type
Reset
Bit
15 14
Name
Type
Reset
00000000
29
28 27
26
25 24 23 22 21 20 19 18 17
13
12 11
10
9
8
7
6
5
4
3
0
2
16
0
LSDA_SEL
RW
0
0
LSDI_SEL
RW
0
1
0
0
Bit(s) Mnemonic Name
Description
18:16
LSDA_SEL
input selection of lsda from slcd_pad_macro
000: from pad_macro input 0
001: from pad_macro input 1
2:0
LSDI_SEL
Input selection of lsdi from slcd_pad_macro
000: from pad_macro input 0
001: from pad_macro input 1
A0450400
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
LCD_TABLE_I
LCD INDEX Mode 0_1
NDEX_0_1
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
INDEX1_RGB565
RW
0
0
0
0
0
0
0
0
0
0
INDEX0_RGB565
RW
0
0
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Description
31:16
INDEX1_RGB565
index 1 RGB565
15:0
INDEX0_RGB565
index 0 RGB565
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MT2523 Series Reference Manual
A0450404
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
LCD_TABLE_I
LCD INDEX Mode 2_3
NDEX_2_3
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
INDEX3_RGB565
RW
0
0
0
0
0
0
0
0
0
0
INDEX2_RGB565
RW
0
0
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
INDEX3_RGB565
index 3 RGB565
15:0
INDEX2_RGB565
index 2 RGB565
LCD_TAB
A045040
LE_INDE LCD INDEX Mode 4_5
8
X_4_5
29
28 27
26
00000000
25 24 23 22 21 20 19 18 17
13
12 11
10
9
8
0
INDEX5_RGB565
RW
0 0 0 0 0 0
0
0
0
0
0
INDEX4_RGB565
RW
0 0 0 0 0 0
0
0
0
0
0
0
Bit(s) Mnemonic Name
7
6
5
4
INDEX5_RGB565
index 5 RGB565
15:0
INDEX4_RGB565
index 4 RGB565
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
3
2
0
1
0
0
0
0
LCD_TABLE_I
LCD INDEX Mode 6_7
NDEX_6_7
30
29
28
27
26
00000000
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
INDEX7_RGB565
RW
0
0
0
0
0
0
0
0
0
0
INDEX6_RGB565
RW
0
0
0
0
0
16
Description
31:16
A045040C
0
0
0
Description
31:16
Bit
31 30
Name
Type
Reset 0 0
Bit
15 14
Name
Type
Reset 0 0
16
0
0
Bit(s) Mnemonic Name
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Description
31:16
INDEX7_RGB565
index 7 RGB565
15:0
INDEX6_RGB565
index 6 RGB565
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MT2523 Series Reference Manual
A0450410
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
LCD_TABLE_I
LCD INDEX Mode 8_9
NDEX_8_9
30
29
28
27
26
25
24
23
22
9
8
7
6
15
14
13
12
11
10
0
INDEX9_RGB565
RW
0
0
0
0
0
0
0
0
0
0
INDEX8_RGB565
RW
0
0
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
INDEX9_RGB565
index 9 RGB565
15:0
INDEX8_RGB565
index 8 RGB565
A0450414
31
30
29
28
27
26
25
24
23
22
9
8
7
6
14
13
12
11
10
0
0
0
0
0
0
0
INDEXa_RGB565
RW
0
0
0
0
0
0
0
0
Bit(s) Mnemonic Name
INDEXb_RGB565
index 11
15:0
INDEXa_RGB565
index 10 RGB565
31
30
29
28
27
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
26
25
24
23
22
9
8
7
6
13
12
11
10
0
0
0
0
0
0
0
INDEXc_RGB565
RW
0
0
0
0
0
0
16
0
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
00000000
14
0
0
Bit(s) Mnemonic Name
21
20
19
18
17
0
0
0
0
0
1
0
0
0
0
0
0
0
5
4
3
2
16
0
Description
31:16
INDEXd_RGB565
index 13 RGB565
15:0
INDEXc_RGB565
index 12 RGB565
Bit
Name
Type
Reset
0
LCD_TABLE_I
LCD INDEX Mode c_d
NDEX_c_d
15
A045041C
17
RGB565
INDEXd_RGB565
RW
0
0
0
0
0
18
Description
31:16
Bit
Name
Type
Reset
Bit
Name
Type
Reset
19
00000000
15
A0450418
20
LCD_TABLE_I
LCD INDEX Mode a_b
NDEX_a_b
INDEXb_RGB565
RW
0
0
0
0
0
21
Description
31:16
Bit
Name
Type
Reset
Bit
Name
Type
Reset
00000000
LCD_TABLE_I
LCD INDEX Mode e_f
NDEX_e_f
31
30
29
28
27
26
0
0
0
0
0
0
25
24
00000000
23
22
INDEXf_RGB565
RW
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
21
20
19
18
17
16
0
0
0
0
0
0
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MT2523 Series Reference Manual
Bit
Name
Type
Reset
15
14
13
12
11
10
0
0
0
0
0
0
Bit(s) Mnemonic Name
9
8
7
INDEXf_RGB565
index 15 RGB565
15:0
INDEXe_RGB565
index 14 RGB565
A0450F80 LCD_SCMD0
31
0
30
0
29
0
28
0
27
0
0
0
DATA[15:0]
Other
0
0
11
10
0
0
0
0
0
0
31
0
0
29
0
28
0
27
0
0
0
DATA[15:0]
Other
0
0
10
0
0
0
0
0
0
0
0
0
0
0
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
9
24
23
8
7
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
28
0
LCD Serial Interface Command Port1
27
0
26
25
0
0
DATA[31:16]
Other
0
0
0
DATA[15:0]
Other
0
0
15
14
13
12
11
10
0
0
0
0
0
0
DATA
0
16
0
Data Port
Write or read this register to directly access the LCD-C LCM0. The A0
bit will be 1.
A0450FA0 LCD_SCMD1
Bit(s) Mnemonic Name
0
Description
DATA
0
7
0
11
0
8
DATA[31:16]
Other
0
0
12
0
23
25
13
29
9
24
26
14
30
1
LCD Serial Interface Data Port0
15
31
2
Command Port
Write or read this register to directly access the LCD-C LCM0. LSA0=0
in 4-wire mode or A0 bit=0 in 3-wire mode
LCD_SDAT0
30
3
Description
DATA
31:0
31:0
0
DATA[31:16]
Other
0
0
12
Bit(s) Mnemonic Name
Bit
Name
Type
Reset
Bit
Name
Type
Reset
25
13
Bit(s) Mnemonic Name
Bit
Name
Type
Reset
Bit
Name
Type
Reset
26
14
A0450F90
4
LCD Serial Interface Command Port0
15
31:0
5
Description
31:16
Bit
Name
Type
Reset
Bit
Name
Type
Reset
6
INDEXe_RGB565
RW
0
0
0
0
9
24
23
8
7
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
Description
Command Port
Write or read this register to directly access the LCD-C LCM1. The A0
bit will be 0.
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MT2523 Series Reference Manual
A0450FB0 LCD_SDAT1
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
30
0
29
0
0
27
0
26
25
0
0
DATA[31:16]
Other
0
0
0
DATA[15:0]
Other
0
0
15
14
13
12
11
10
0
0
0
0
0
0
Bit(s) Mnemonic Name
31:0
LCD Serial Interface Data Port1
28
DATA
9
24
23
8
7
00000000
22
21
20
19
18
17
0
0
0
0
0
0
1
0
0
0
0
0
0
0
0
6
5
4
3
2
16
0
Description
Data Port
Write or read this register to directly access the LCD-C LCM1. The A0
bit will be 1.
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MT2523 Series Reference Manual
24. Display Serial Interface (DSI)
24.1. General Description
The display serial interface (DSI) is based on MIPI Alliance Specification, supporting high-speed serial data transfer
between host processor and peripheral devices such as display modules. DSI supports command mode data
transfer defined in MIPI spec, and it also provides bidirectional transmission with low-power mode to receive
messages from the peripheral.
24.2.
Features
The DSI engine has the following features for display serial interface:
•
One clock lane and one data lane
•
Bidirectional data transmission in low-power mode in data lane 0
•
Uni-directional data transmission in high-speed mode in data lane 0
•
DCS command transmission
•
Pixel format of RGB565/loosely RGB666/RGB888
•
Supports non-continuous high-speed transmission in data lane
•
Supports peripheral TE and external TE signal detection
•
Supports ultra-low power mode control
24.2.1.
Pixel Format
R1[7]
G1[7]
B1[7]
R2[7]
G2[7]
B2[7]
…
R1[6]
G1[6]
B1[6]
R2[6]
G2[6]
B2[6]
…
R1[5]
G1[5]
B1[5]
R2[5]
G2[5]
B2[5]
…
R1[4]
G1[4]
B1[4]
R2[4]
G2[4]
B2[4]
…
R1[3]
G1[3]
B1[3]
R2[3]
G2[3]
B2[3]
…
R1[2]
G1[2]
B1[2]
R2[2]
G2[2]
B2[2]
…
R1[1]
G1[1]
B1[1]
R2[1]
G2[1]
B2[1]
…
R1[0]
G1[0]
B1[0]
R2[0]
G2[0]
B2[0]
…
Time
Figure 24-1. Pixel Format of RGB888
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MT2523 Series Reference Manual
B1[5]
G1[5]
R1[5]
R2[5]
G2[5]
B2[5]
…
R1[4]
G1[4]
B1[4]
R2[4]
G2[4]
B2[4]
…
R1[3]
G1[3]
B1[3]
R2[3]
G2[3]
B2[3]
…
R1[2]
G1[2]
B1[2]
R2[2]
G2[2]
B2[2]
…
R1[1]
G1[1]
B1[1]
R2[1]
G2[1]
B2[1]
…
R1[0]
G1[0]
B1[0]
R2[0]
G2[0]
B2[0]
…
1'b0
1'b0
1'b0
1'b0
1'b0
1'b0
…
1'b0
1'b0
1'b0
1'b0
1'b0
1'b0
…
Time
Figure 24-2. Pixel Format of Loosely RGB666
R1[4]
G1[2]
R2[4]
G2[2]
R3[4]
G3[2]
…
R1[3]
G1[1]
R2[3]
G2[1]
R3[3]
G3[1]
…
R1[2]
G1[0]
R2[2]
G2[0]
R3[2]
G3[0]
…
R1[1]
B1[4]
R2[1]
B2[4]
R3[1]
B3[4]
…
R1[0]
B1[3]
R2[0]
B2[3]
R3[0]
B3[3]
…
G1[5]
B1[2]
G2[5]
B2[2]
G3[5]
B3[2]
…
G1[4]
B1[1]
G2[4]
B2[1]
G3[4]
B3[1]
…
G1[3]
B1[0]
G2[3]
B2[0]
G3[3]
B3[0]
…
Time
Figure 24-3. Pixel Format of RGB565
24.3.
Register Definition
Module name: DISP_DSI Base address: (+a04a0000h)
A04A0000
Address
DSI_START
Name
Width
32
Register Function
DSI Start Register
A04A0008
DSI_INTEN
32
DSI Interrupt Enable Register
A04A000C
DSI_INTSTA
32
DSI Interrupt Status Register
A04A0010
DSI_COM_CON
32
DSI Common Control Register
DSI Mode Control Register
A04A0014
DSI_MODE_CON
32
A04A0018
DSI_TXRX_CON
32
DSI TX RX Control Register
A04A001C
DSI_PSCON
32
DSI Pixel Stream Control Register
A04A002C
DSI_VACT_NL
32
DSI Vertical Active Register
A04A0060
DSI_CMDQ_CON
32
DSI Command Queue Control Register
DSI HSTX Clock Low-power Mode Word
Count Register
DSI Receive Packet Data Byte 0 ~ 3
Register
DSI Receive Packet Data Byte 4 ~ 7
Register
DSI Receive Packet Data Byte 8 ~ 11
Register
DSI Receive Packet Data Byte 12 ~ 15
Register
A04A0064
DSI_HSTX_CKLP_WC
A04A0074
DSI_RX_DATA03
A04A0078
DSI_RX_DATA47
A04A007C
DSI_RX_DATA8B
A04A0080
DSI_RX_DATAC
A04A0084
DSI_RX_RACK
32
32
32
32
32
32
DSI Read Data Acknowledge Register
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MT2523 Series Reference Manual
Address
Name
Width
32
Register Function
A04A0088
DSI_RX_TRIG_STA
A04A0090
DSI_MEM_CONTI
32
DSI Receiver Status Register
DSI Memory Continue Command Register
DSI Frame Byte Count Register
A04A0094
DSI_FRM_BC
32
A04A00A0
DSI_TIME_CON0
32
DSI Timing Control 0 Register
A04A00A4
DSI_TIME_CON1
32
DSI Timing Control 1 Register
DSI PHY Lane Clock Control Register
A04A0104
DSI_PHY_LCCON
32
A04A0108
DSI_PHY_LD0CON
32
DSI PHY Lane 0 Control Register
A04A0110
DSI_PHY_TIMCON0
32
DSI PHY Timing Control 0 Register
A04A0114
DSI_PHY_TIMCON1
32
DSI PHY Timing Control 1 Register
A04A0118
DSI_PHY_TIMCON2
32
DSI PHY Timing Control 2 Register
DSI_PHY_TIMCON3
DSI_CMDQ [n]
(n=0~127)
32
DSI PHY Timing Control 3 Register
A04A011C
A04A0200~
a04a03fc
A04A0000 DSI_START
Bit
Nam
e
Type
Rese
t
Bit
32
DSI Command Queue
DSI Start Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
SL
EE
PO
UT
_S
TA
RT
RW
1
0
Nam
e
Type
Rese
t
DSI_START
31
30
29
28
0
Description
DSI sleep-out operation
Set up this bit to wake up DSI from ULPS mode. This bit is only
available when SLEEP_MODE = 1.
0: No effect
1: Start
Starts DSI controller operation
Set up this bit to start DSI control.
0: No effect
1: Start
A04A0008 DSI_INTEN
Bit
Nam
e
Type
Rese
t
RW
0
Bit(s) Name
2
SLEEPOUT_START
0
DSI
_S
TA
RT
DSI Interrupt Enable Register
27
26
25
24
23
22
21
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20
00000000
19
18
17
16
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MT2523 Series Reference Manual
Bit
15
14
13
12
11
10
9
8
Type
Rese
t
Bit(s) Name
7
TE_TIMEOUT_INT_EN
6
SLEEPOUT_DONE_INT_EN
4
FRAME_DONE_INT_EN
2
TE_RDY_INT_EN
1
CMD_DONE_INT_EN
0
LPRX_RD_RDY_INT_EN
Type
Rese
t
0
0
31
DSI
_B
US
Y
RU
30
29
28
5
4
3
2
1
0
FR
AM
E_
DO
NE
_I
NT
_E
N
TE
_R
DY
_I
NT
_E
N
CM
D_
DO
NE
_I
NT
_E
N
LP
RX
_R
D_
RD
Y_I
NT
_E
N
RW
RW
RW
RW
0
0
0
0
Description
TE timeout interrupt
This interrupt will be issued when the wait time of TE signal
exceeds SW-configured threshold
0: Disable
1: Enable
Enables ULPS sleep-out interrupt
The interrupt will be issued when ULPS sleep out procedure is
completed
0: Disable
1: Enable
Frame done interrupt
This interrupt will be issued when the frame transmission is done
0: Disable
1: Enable
DSI TE ready interrupt
This interrupt will be issued when either BTA TE or external TE is
received
0: Disable
1: Enable
Enables DSI command mode finished interrupt
This interrupt will be issued when all commands set in command
queue are executed
0: Disable
1: Enable
Enables RX data-ready interrupt
This interrupt will be issued when RX data are received through
read commands. It is recommended to enable this interrupt to
receive data because the read response may be overwritten if
another read command exists. An RACK operation should be set
after reading data to allow HW continue execution
0: Disable
1: Enable
A04A000C DSI_INTSTA
Nam
e
RW
6
SL
EE
PO
UT
_D
ON
E_I
NT
_E
N
RW
TE
_TI
ME
OU
T_I
NT
_E
N
Nam
e
Bit
7
DSI Interrupt Status Register
27
26
25
24
23
22
21
20
00000000
19
18
17
16
0
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MT2523 Series Reference Manual
Bit
15
14
13
12
11
10
9
8
7
A1
6
SL
EE
PO
UT
_D
ON
E_I
NT
_F
LA
G
A1
0
0
TE
_TI
ME
OU
T_I
NT
_F
LA
G
Nam
e
Type
Rese
t
Bit(s) Name
31
DSI_BUSY
7
TE_TIMEOUT_INT_FLAG
6
SLEEPOUT_DONE_INT_FLAG
4
FRAME_DONE_INT_FLAG
2
TE_RDY_INT_FLAG
1
CMD_DONE_INT_FLAG
0
LPRX_RD_RDY_INT_FLAG
5
4
3
2
1
0
FR
AM
E_
DO
NE
_I
NT
_F
LA
G
TE
_R
DY
_I
NT
_F
LA
G
CM
D_
DO
NE
_I
NT
_F
LA
G
LP
RX
_R
D_
RD
Y_I
NT
_F
LA
G
A1
A1
A1
A1
0
0
0
0
Description
DSI busy status
0: Idle
1: Busy
TE time-out interrupt status
0: Clear interrupt
1: No effect
ULPS sleep-out done interrupt status.
0: Clear interrupt
1: No effect
Frame done interrupt status
0: Clear interrupt
1: No effect
DSI TE ready interrupt status
0: Clear interrupt
1: No effect
DSI command mode finish interrupt status
0: Clear interrupt
1: No effect
RX data-ready interrupt status
0: Clear interrupt
1: No effect
A04A0010
DSI_COM_CON
DSI Common Control Register
Bit
Nam
e
Type
Rese
t
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
DP
HY
_R
ES
ET
RW
1
0
Nam
e
Type
Rese
t
00000000
DSI
_R
ES
ET
RW
0
Bit(s) Name
2
DPHY_RESET
0
Description
DIG_MIPI_TX software reset
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MT2523 Series Reference Manual
Bit(s) Name
0
DSI_RESET
A04A0014
Bit
Description
0: De-assert software reset
1: Assert software reset
DSI module software reset
0: De-assert software reset
1: Assert software reset
31
DSI_MODE_CON
30
29
28
27
DSI Mode Control Register
26
25
24
23
22
21
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
15
14
A04A0018
13
12
11
10
31
15
Nam
e
Type
Rese
t
18
17
16
29
8
7
6
5
4
3
2
1
0
Description
DSI sleep mode for ULPS wake-up operation
This mode is used during wake-up stage to leave ULPS. Set this bit
to 1 before setting LANE_NUM to enable output data lane to LP00; then set up SLEEPOUT_START to start the ULPS-exit process.
0: Disable
1: Enable
DSI_TXRX_CON
30
9
28
DSI TX RX Control Register
27
26
25
24
23
22
21
00000000
20
Nam
e
Type
Rese
t
Bit
19
0
Bit(s) Name
20
SLEEP_MODE
Bit
00000000
20
SL
EE
P_
MO
DE
RW
14
13
12
MAX_RTN_SIZE
RW
0
0
0
0
11
9
8
7
6
5
19
TE
_TI
ME
OU
T_
CH
K_
EN
RW
18
17
16
TE
_W
IT
H_
CM
D_
EN
TY
PE1
_B
TA
_S
EL
HS
TX
_C
KL
P_
EN
RW
RW
RW
0
0
0
0
3
2
1
0
10
EX
T_
TE
_E
DG
E_
SE
L
RW
EX
T_
TE
_E
N
HS
TX
_D
IS_
EO
T
LANE_NUM
RW
RW
RW
0
0
0
0
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0
0
0
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MT2523 Series Reference Manual
Bit(s) Name
19
TE_TIMEOUT_CHK_EN
18
TE_WITH_CMD_EN
17
TYPE1_BTA_SEL
16
HSTX_CKLP_EN
15:12
MAX_RTN_SIZE
10
EXT_TE_EDGE_SEL
9
EXT_TE_EN
6
HSTX_DIS_EOT
5:2
LANE_NUM
A04A001C
Bit
Description
Enables TE time-out check mechanism
Enable this bit to turn on DSI TE and external TE time-out check
mechanism based on wait time of TE_TIMEOUT.
0: Disable
1: Enable
In the tradition design, TE command executes 'bus
turnaround' and ignores other settings in the same
command column. Combine the TE bit and other
commands if this bit is asserted.
0: Disable
1: Enable
Selects TYPE1 BTA mechanism
0: TYPE1 BTA by frame
1: TYPE1 BTA by packet
Enables non-continuous clock lane
0: Disable
1: Enable
Maximum return packet size
This register constrains maximum return packet that the slave side
will send back to the host. It takes effect after the host sends 'Set
Maximum Return Packet Size' packet to slave.
Selects trigger edge type of external TE
0: Rising edge
1: Falling edge
Enables external TE signal
This bit should be set to receive external TE if LPTE pin is used as
external TE pin
0: Disable
1: Enable
Disables end of transmission packet.
0: Enable EoTp
1: Disable EoTp
Lane number
Set up this bit to turn on lane circuit.
4'b0000: Disable all lanes
4'b0001: Enable 1 data lane + 1 clock lane
31
DSI_PSCON
30
29
28
DSI Pixel Stream Control Register
27
26
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
15
14
13
12
11
10
24
23
22
RG
B_
SW
AP
DSI_PS_
SEL
RW
RW
0
0
9
8
7
6
21
20
19
00000000
25
BY
TE
_S
WA
P
RW
18
17
16
0
0
5
4
3
2
1
0
0
0
0
0
0
0
DSI_PS_WC
RW
0
Bit(s) Name
25
BYTE_SWAP
0
0
0
0
0
0
0
Description
Selects byte order
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MT2523 Series Reference Manual
Bit(s) Name
24
RGB_SWAP
17:16
DSI_PS_SEL
13:0
DSI_PS_WC
Description
For RGB565 type, it swaps bytes between MSB and LSB. For other
stream types, this bit is not used.
0: Normal case
1: Byte order change
Selects order of RGB
For all color types, it changes the color order in format of RGB or
BGR.
0: Normal case
1: R/B order change
Selects pixel stream type
0: Packed pixel stream with 16-bit RGB 5-6-5 format
2: Loosely pixel stream with 24-bit RGB 6-6-6 format
3: Packed pixel stream with 24-bit RGB 8-8-8 format
Word count of long packet in valid pixel data duration
Unit: Byte
This value must be (H_SIZE*BPP). Take the QVGA display as an
example, the value of PS_WC is (240*3) = 720 in decimal.
A04A002C DSI_VACT_NL
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
DSI Vertical Active Register
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
VACT_NL
RW
0
0
Bit(s) Name
11:0 VACT_NL
0
0
0
0
0
Description
Vertical active duration
Configures frame height of pixels
A04A0060 DSI_CMDQ_CON
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
00000000
31
DSI Command Queue Control Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
CMDQ_SIZE
RW
0
Bit(s) Name
7:0
CMDQ_SIZE
0
0
0
0
Description
Number of commands in command queue
Range: 1 ~ 127
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MT2523 Series Reference Manual
Bit(s) Name
Description
A04A0064 DSI_HSTX_CKLP_WC DSI HSTX Clock Low-power Mode
Word Count Register
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
00010000
18
17
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
1
15
14
13
12
11
10
9
8
7
6
5
4
3
2
0
0
0
0
0
0
1
0
HSTX_CKLP_WC
RW
0
0
0
0
0
0
Bit(s) Name
16
HSTX_CKLP_WC_AUTO
15:2 HSTX_CKLP_WC
DSI_RX_DATA03
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
31
29
28
0
0
Description
Automatic calculation for HSTX_CKLP_WC
Word count of non-continuous clock lane counter
Sets up HSTX clock low-power period when HSTX_CKLP_EN = 1.
Refer to programming guide for details on the usage.
A04A0074
Bit(s)
31:24
23:16
15:8
7:0
16
HS
TX
_C
KL
P_
WC
_A
UT
O
RW
27
DSI Receive Packet Data Byte 0 ~ 3
Register
26
25
24
23
22
21
20
19
BYTE3
BYTE2
RO
RO
00000000
18
17
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
Name
BYTE3
BYTE2
BYTE1
BYTE0
0
BYTE1
BYTE0
RO
RO
0
0
0
0
0
0
0
0
0
0
Description
RX read data buffer byte 3
RX read data buffer byte 2
RX read data buffer byte 1
RX read data buffer byte 0
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MT2523 Series Reference Manual
A04A0078
DSI_RX_DATA47
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
Bit(s)
31:24
23:16
15:8
7:0
31
29
28
27
DSI Receive Packet Data Byte 4 ~ 7
Register
26
Bit(s)
31:24
23:16
15:8
7:0
23
22
21
20
19
BYTE6
RO
RO
18
17
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
BYTE5
BYTE4
RO
RO
0
0
0
Name
BYTE7
BYTE6
BYTE5
BYTE4
31
30
0
0
0
0
0
0
0
Description
RX read data buffer byte 7
RX read data buffer byte 6
RX read data buffer byte 5
RX read data buffer byte 4
29
28
27
DSI Receive Packet Data Byte 8 ~ 11
Register
26
25
24
23
22
21
20
19
BYTEB
BYTEA
RO
RO
00000000
18
17
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
BYTE9
BYTE8
RO
RO
0
0
0
Name
BYTEB
BYTEA
BYTE9
BYTE8
31
30
0
0
0
0
0
0
0
Description
RX read data buffer byte 11
RX read data buffer byte 10
RX read data buffer byte 9
RX read data buffer byte 8
A04A0080 DSI_RX_DATAC
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
24
BYTE7
A04A007C DSI_RX_DATA8B
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
25
00000000
29
28
DSI Receive Packet Data Byte 12 ~ 15
Register
27
26
25
24
23
22
21
20
19
BYTEF
BYTEE
RO
RO
00000000
18
17
16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
BYTED
BYTEC
RO
0
0
0
0
RO
0
0
0
0
0
0
0
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0
0
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MT2523 Series Reference Manual
t
Bit(s)
31:24
23:16
15:8
7:0
Name
BYTEF
BYTEE
BYTED
BYTEC
Description
RX read data buffer byte 15
RX read data buffer byte 14
RX read data buffer byte 13
RX read data buffer byte 12
A04A0084 DSI_RX_RACK
Bit
Nam
e
Type
Rese
t
Bit
DSI Read Data Acknowledge Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
RA
CK
_B
YP
AS
S
0
Nam
e
RA
CK
Type
RW
Rese
t
W1
C
0
0
Bit(s) Name
1
RACK_BYPASS
0
Description
Enables RX read acknowledge bypass
Set this bit to enable to ignore RACK from SW and continue next
commands
1: Does not check RACK
0: Check RACK
Acknowledges RX read
When a read command is executed and read data are received
completely, the LPRX_RD_RDY interrupt will be issued. After read
from the RX_DATA buffer, set up this bit to continue to the next
command.
1: Acknowledge
0: No effect
RACK
A04A0088 DSI_RX_TRIG_STA
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
DSI Receiver Status Register
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
DI
RE
CTI
ON
RX
_U
LP
S
RU
RU
3
RX
_T
RI
G_
3
RU
2
RX
_T
RI
G_
2
RU
1
RX
_T
RI
G_
1
RU
0
RX
_T
RI
G_
0
RU
0
0
0
0
0
0
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MT2523 Series Reference Manual
Bit(s) Name
5
DIRECTION
4
RX_ULPS
3
RX_TRIG_3
2
RX_TRIG_2
1
RX_TRIG_1
0
RX_TRIG_0
Description
Escape turnaround direction
Current bus direction of Data Lane 0. If set to 1, there will be
reverse direction transmission on Data Lane0 in Low Power mode.
Otherwise, it will be a forward direction transmission.
1: Reverse direction
0: Forward direction
RX ULPS (Ultra-low power state)
Entry pattern is 00011110
Reserved by DSI specification.
Entry pattern is 10100000
Acknowledge.
Entry pattern is 00100001
TE.
Entry pattern is 01011101
Remote application reset.
Entry pattern is 01100010
A04A0090 DSI_MEM_CONTI
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
DSI Memory Continue Command
Register
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
DSI_RWMEM_CONTI
RW
0
0
0
0
0
0
Bit(s) Name
15:0 DSI_RWMEM_CONTI
31
30
29
28
0
0
0
0
Description
Read/Write memory continue command.
A04A0094 DSI_FRM_BC
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
00000000
DSI Frame Byte Count Register
27
26
25
24
23
22
21
20
00000000
19
18
17
16
DSI_FRM_BC
RW
15
14
13
12
11
10
9
8
7
0
0
0
0
0
6
5
4
3
2
1
0
0
0
0
0
0
0
0
DSI_FRM_BC
RW
0
0
0
Bit(s) Name
20:0 DSI_FRM_BC
0
0
0
0
0
0
Description
Frame buffer byte count
The total number of byte is expected to be read for type3 command.
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A04A00A0 DSI_TIME_CON0
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
DSI Timing Control 0 Register
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
ULPS_WAKEUP_PRD
RW
0
0
0
0
0
0
Bit(s) Name
15:0 ULPS_WAKEUP_PRD
0
0
1
0
Description
ULPS wakeup period
Cycle count for ultra-low power state (ULPS) wake-up during
ULPS-exit sequence.
Total wait time = (ULPS_WAKEUP_PRD*1024*DSI clock cycle
time)
Default value: 5ms under 26MHz DSI byte clock
A04A00A4 DSI_TIME_CON1
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
00000080
31
DSI Timing Control 1 Register
00002000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
0
0
0
0
0
TE_TIMEOUT_PRD
RW
0
0
1
0
0
0
Bit(s) Name
15:0 TE_TIMEOUT_PRD
DSI_PHY_LCCON
Bit
Nam
e
Type
Rese
t
30
29
28
0
0
0
Description
TE time-out check period
Cycle count to check TE time-out and issue time-out interrupt when
waiting for TE signal.
Total wait time = (TE_TIMEOUT_PRD*16384*DSI clock cycle
time)
Default value: 5sec under 26MHz DSI byte clock
A04A0104
31
0
27
DSI PHY Lane Clock Control Register
26
25
24
23
22
21
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20
19
00000000
18
17
16
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MT2523 Series Reference Manual
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
Nam
e
Type
Rese
t
Bit(s) Name
2
LC_WAKEUP_EN
1
LC_ULPM_EN
0
LC_HSTX_EN
2
LC
_W
AK
EU
P_
EN
RW
1
0
LC
_U
LP
M_
EN
LC
_H
ST
X_
EN
RW
RW
0
0
0
Description
Enables clock lane wake-up
Make the clock lane wake-up from ultra-low power mode. Make
sure DSI_EN = 1 when setting this register
Enables clock lane ULPS
Make the clock lane go to ultra-low power mode. Make sure
DSI_EN = 1 when setup this register
Enables clock lane HS mode
Start clock lane high speed transmission.
A04A0108
DSI_PHY_LD0CON
Bit
Nam
e
Type
Rese
t
Bit
31
30
29
28
27
26
DSI PHY Lane 0 Control Register
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
L0
_W
AK
EU
P_
EN
RW
1
L0
_U
LP
M_
EN
RW
0
L0
_R
M_
TRI
G_
EN
RW
0
0
0
Nam
e
Type
Rese
t
Bit(s) Name
2
L0_WAKEUP_EN
1
L0_ULPM_EN
0
L0_RM_TRIG_EN
Description
Enables data lane 0 wake-up
Make the data lane 0 wake-up from ultra-low power mode.
Enables data lane 0 ULPS
Make the data lane 0 go to ultra-low power mode.
Enables data lane 0 remote application trigger
Send application trigger to slave side.
A04A0110
DSI_PHY_TIMCON0
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
30
31
29
00000000
28
27
26
DSI PHY Timing Control 0 Register
25
24
23
22
21
20
19
DA_HS_TRAIL
DA_HS_ZERO
RW
RW
14140A0A
18
17
16
0
0
0
1
0
1
0
0
0
0
0
1
0
1
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
DA_HS_PREP
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MT2523 Series Reference Manual
Type
Rese
t
Bit(s)
31:24
23:16
15:8
7:0
RW
0
0
0
0
RW
1
0
Name
DA_HS_TRAIL
DA_HS_ZERO
DA_HS_PREP
LPX
DSI_PHY_TIMCON1
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
Bit(s)
31:24
23:16
15:8
7:0
0
0
0
0
0
1
0
1
0
Description
Control for timing parameter: T_HS-Trail
Control for timing parameter: T_HS-Zero
Control for timing parameter: T_HS-Prepare
Control for timing parameter: T_LPX
A04A0114
31
1
29
28
27
DSI PHY Timing Control 1 Register
26
25
24
23
22
21
20
19
CLK_HS_EXIT
TA_GET
RW
RW
0E1A1632
18
17
16
0
0
0
0
1
1
1
0
0
0
0
1
1
0
1
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
0
1
0
0
0
0
TA_SURE
TA_GO
RW
RW
1
0
1
Name
CLK_HS_EXIT
TA_GET
TA_SURE
TA_GO
DSI_PHY_TIMCON2
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
30
29
0
0
0
1
1
0
Description
Control for timing parameter: T_HS-Exit for clock lane
Control for timing parameter: T_TA-Get
Control for timing parameter: T_TA-Sure
Control for timing parameter: T_TA-Go
A04A0118
31
1
28
27
DSI PHY Timing Control 2 Register
26
25
24
23
22
21
20
19
CLK_HS_TRAIL
CLK_HS_ZERO
RW
RW
14140000
18
17
16
0
0
0
1
0
1
0
0
0
0
0
1
0
1
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Bit(s) Name
31:24 CLK_HS_TRAIL
23:16 CLK_HS_ZERO
Description
Control for timing parameter: T_CLK-Trail
Control for timing parameter: T_CLK-Zero
A04A011C
DSI_PHY_TIMCON3
Bit
Nam
e
Type
Rese
t
30
31
29
28
27
26
DSI PHY Timing Control 3 Register
25
24
23
22
21
20
000E0E0A
19
18
17
16
1
1
1
0
DA_HS_EXIT
RW
0
0
0
0
0
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MT2523 Series Reference Manual
Bit
Nam
e
Type
Rese
t
Bit(s)
25:16
15:8
7:0
15
14
0
0
13
12
11
10
Bit(s)
31:24
23:16
15:8
7:6
5
30
6
5
4
3
RW
RW
0
29
7
CLK_HS_PREP
0
1
1
Name
DA_HS_EXIT
CLK_HS_POST
CLK_HS_PREP
31
8
CLK_HS_POST
1
0
0
0
0
0
1
28
27
26
25
24
23
22
21
20
19
DATA_1
DATA_0
RW
RW
0
0
0
0
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
7
6
5
4
3
Name
DATA_1
DATA_0
DATA_ID
RESV
TE
4
CL
3
HS
2
BTA
1:0
TYPE
0
0
0
1
0
00000000
0
0
1
DSI Command Queue
0
0
2
Description
Control for timing parameter: T_HS-Exit for data lane
Control for timing parameter: T_CLK-Post
Control for timing parameter: T_CLK-Prepare
A04A0200 DSI_CMDQ
~
[n](n=0~127)
A04A03FC
Bit
Nam
e
Type
Rese
t
Bit
Nam
e
Type
Rese
t
9
18
17
16
0
0
0
2
1
0
DATA_ID
RESV
TE
CL
HS
RW
RW
RW
RW
RW
BT
A
RW
0
0
0
0
0
0
0
0
0
0
0
TYPE
RW
0
0
Description
Data byte 1 of command
Data byte 0 of command
Data ID of command
Reserved
Enables internal or external TE
0: Disable
1: Enable
Selects DCS byte
0: 1-byte DCS
1: 2-byte DCS
Enables high-speed transmission
0: LPTX transmission
1: HSTX transmission
Enables BTA
0: Disable
1: Enable
Command types
0: Type-0 command
1: Type-1 command
2: Type-2 command
3: Type-3 command
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MT2523 Series Reference Manual
25. Image Resizer
25.1. General Description
This block provides the image resizing function for image and video capturing scenarios. It receives image data
from the Caminf module or from memory input, performs the image resizing function and outputs to the
ROTATOR. shows the block diagram. The resizer is composed of horizontal and vertical resizing blocks. It can scale
up or down the input image by any ratio. It also supports tile processing which can combines tiles into a full frame
in memory-input mode. The maximum size of input images is limited to 2047x2047 and maximum size of output
images is limited to 2047x2047.
Caminf
YUV444
(UV duplicated)
CROP
Resizing
Rotator
YUV444
(UV duplicated)
Memory Input
(CLIP)
Image Resizer
UYVY
YUV420
YUV422
UYVY
YUV420
YUV422
Memory
Memory
Figure 25-1. Image Resizer Overview
25.2.
Application Notes
ORIGSZ.WS
CROP_L
SRCSZ.WS
CROP_R
INPUT IMAGE
SRCSZ.HS
ORIGSZ.HS
CROP_T
CROPPED IMAGE
CROP_B
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There is a cropping example. Assuming an uncropped image with size = (640, 480), if the size of the cropped frame
is (320, 240) and the cropped region is the center of input frame. Then the setting will be CROP_L = 160, CROP_R =
479, CROP_T = 120, CROP_B = 359, and SRCSZ_WS = 320, SRCSZ_HS = 240.
Note that there are two kinds of registers, registers related to cropping function and the rest registers, including
ratio, and size, etc. Two kinds of double buffered registers have two separated updating time as described in the .
In the normal case, registers related to cropping function will be updated at B if the following criterion is satisfied:
1.
LOCK bit is not ‘1’ at B.
The rest registers will be updated at C if the following criteria are satisfied:
1.
LOCK bit is not ‘1’ at B.
2.
LOCK bit is not changed from B to C.
To make sure HW double buffered registers behave by this rule, we can guarantee that the cropping registers and
the rest registers take effect at the same frame. However, from input frame #0, if after interrupt is asserted at A
and FW cannot finish registers programming before B, then all the registers will take function at frame #2.
update crop registers
if not lock
update rest registers if:
1. B is not lock
2. LOCK bit is not changed from B to C
B
Input frame #1
Input frame #0
Cropped frame #0
A
Upscaled output frame #1
Upscaled output frame #0
Settings take effect at frame #1
Input frame #2
Cropped frame #2
C Cropped frame #1
time
Upscaled output frame #2
Settings take effect at frame #2
Figure 25-2. Resizer double buffered registers updating and taking effect timing chart
As shown in , in cropping mode, the FSTINT is asserted at the beginning of cropped frame. The FEDINT is asserted
at the end of output frame. There are three independent busy status bits for three different frames, input frame,
cropping frame and output frame.
FEDINT
FSTINT
Input frame #0
Cropped frame #0
output frame #0
INBUSY
BUSYI
OUTBUSY
BUSYO
CROPBUSY
BUSYC
Figure 25-3. Resizer interrupt and busy asserting timing chart
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Configuration procedure when source is cam
RESZ_CFG = 0x10 (continuous), 0x0 (single run);
RESZ_SRCSZ1 = source image size;
RESZ_TARSZ1 = target image size;
RESZ_HRATIO1 = horizontal ratio;
RESZ_VRATIO1 = vertical ratio;
RESZ_HRES1 = horizontal residual;
RESZ_VRES1 = vertical residual;
RESZ_FRCFG = working memory size, interrupt enable;
RESZ_CON = 0x1;
Configuration procedure when source is memory (frame mode)
RESZ_CFG = 0x1 or 0x2 or 0x3 (single run);
RESZ_SMBASE_Y = source memory for Y base address;
RESZ_SMBASE_U = source memory for U base address;
RESZ_SMBASE_V = source memory for V base address;
RESZ_SRCSZ1 = source image size;
RESZ_TARSZ1 = target image size;
RESZ_HRATIO1 = horizontal ratio;
RESZ_VRATIO1 = vertical ratio;
RESZ_HRES1 = horizontal residual;
RESZ_VRES1 = vertical residual;
RESZ_FRCFG = working memory size, interrupt enable;
RESZ_CON = 0x1;
Configuration procedure when source is memory (tile mode)
RESZ_CFG = 0x10001 or 0x10002 or 0x10003 (single run);
RESZ_SMBASE_Y = source tile memory for Y base address;
RESZ_SMBASE_U = source tile memory for U base address;
RESZ_SMBASE_V = source tile memory for V base address;
RESZ_SRCSZ1 = source tile size;
RESZ_TARSZ1 = target tile size;
RESZ_HRATIO1 = horizontal ratio;
RESZ_VRATIO1 = vertical ratio;
RESZ_HRES1 = horizontal residual;
RESZ_VRES1 = vertical residual;
Setup tile parameters according tile formula
RESZ_FRCFG = working memory size, interrupt enable;
RESZ_CON = 0x1;
Configuration procedure for disable clock.
RESZ_CON = 0x0;
RESZ_CON = 0X10000;
while ((RESZ_CON&0x10000) == 1) ;
RESZ_FRCFG = RESZ_FRCFG & 0xFFFF13FF;
SWInt = RESZ_INT & 0x0000003F;
Disable clock;
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MT2523 Series Reference Manual
25.3.
Register Definition
Address
A0410000
Name
RESZ_CFG
Width
32
Register Function
Image Resizer Configuration Register
The register is for global configuration of Image Resizer.
Image Resizer Control Register
The register is for global control of Image Resizer. Furthermore, software reset will
not reset all register setting. Remember trigger Image Resizer first before trigger
image sources to Image Resizer.
A0410004
RESZ_CON
32
A0410008
RESZ_STA
32
A041000C
RESZ_INT
32
A0410010
RESZ_SRCSZ1
32
The register specifies the size of source image. The allowable maximum size is
2047x2047.
The register specifies the size of target image. The allowable maximum size is
960x2047 with resizing and 2047x2047 without resizing. However, it is suggested to
limit WT <= 480 when SRC is CAM and with resizing.
Image Resizer Status Register
The register indicates global status of Image Resizer.
Image Resizer Interrupt Register
The register shows up the interrupt status of resizer.
Image Resizer Source Image Size Register 1
Image Resizer Target Image Size Register 1
A0410014
RESZ_TARSZ1
32
A0410018
RESZ_HRATIO1
32
A041001C
RESZ_VRATIO1
32
A0410020
RESZ_HRES1
32
A0410024
RESZ_VRES1
32
Image Resizer Horizontal Ratio Register 1
The register specifies horizontal resizing ratio.
Image Resizer Vertical Ratio Register 1
The register specifies vertical resizing ratio.
Image Resizer Horizontal Residual Register 1
The register specifies horizontal residual. It is obtained by RESZ_SRCSZ1.WS %
RESZ_TARSZ1.WT.
Image Resizer Vertical Residual Register 1
The register specifies vertical residual. It is obtained by RESZ_SRCSZ1.HS %
RESZ_TARSZ1.HT.
Image Resizer LOCK Register
A041002C
RESZ_LOCK
32
A0410030
RESZ_ORIGSZ1
32
This register specifies the lock register. Once this bit is programmed to be '1', Resizer
stops updating double buffered registers at Vsync. The function of lock register is to
prevent Resizer updating only partial parameters when firmware programs registers
near input Vsync. Set to 1 before changing size related registers, and set to 0 after
all size related registers are programmed.
Image Resizer Crop Original Size Register 1
These registers are only used when CROP_EN = '1'. This field specifies original size
before image cropping.
Image Resizer Crop Left Right Register 1
A0410034
RESZ_CROPLR1
32
These registers are only used when CROP_EN = '1'. This field specifies the horizontal
start and end position index for image cropping. Please note that these indexes are
defined as the following illustration. For an uncropped image, the index of start
point is 0 and the index of end point is (ORIGSZ_WS-1). The width cropped frame is
therefore defined as (CROP_R - CROP_L+1).
Image Resizer Crop Top Bottom Register 1
A0410038
RESZ_CROPTB1
32
These registers are only used when CROP_EN = '1'. This field specifies the vertical
start and end position index for image cropping. Please note that these indexes are
defined as the following illustration. For an uncropped image, the index of start
point is 0 and the index of end point is (ORIGSZ_HS-1). The height cropped frame is
therefore defined as (CROP_B - CROP_T+1).
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MT2523 Series Reference Manual
Address
Name
Width
Register Function
Image Resizer Fine Resizing Configuration Register
The register specifies various setting of control for fine resizing, including of
horizontal and vertical resizing. Note that all parameters must be set before
horizontal and vertical resizing proceeds.
A0410040
RESZ_FRCFG
32
A0410090
RESZ_DBGCFG
32
A04100B0
RESZ_INFO0
32
Image Resizer Information Register 0
A04100B4
RESZ_INFO1
32
Image Resizer Information Register 1
Image Resizer Debug Configuration Register
The register is used to help debug.
Image Resizer Y-Component Source Memory Base Address Register
A04100DC
RESZ_SMBASE_Y
32
The register specifies the base address of memory input for Y-component or UYVY
format. It's only useful in Memory input mode. It should be 4 bytes aligned without
CLIP_EN. It should be format aligned with CLIP_EN. That is 4 bytes for UYVY format
and 2 bytes for YUV420 and YUV422 format. However, the base address before
clipping must be 4 bytes aligned.
Image Resizer U-Component Source Memory Base Address Register
A04100E0
RESZ_SMBASE_U
32
The register specifies the base address of memory input for U-component. It's only
useful in Memory input mode. It should be 4 bytes aligned without CLIP_EN. It
should be format aligned with CLIP_EN. That is 1 byte. However, the base address
before clipping must be 4 bytes aligned.
Image Resizer V-Component Source Memory Base Address Register
The register specifies the base address of memory input for V-component. It's only
useful in Memory input mode. It should be 4 bytes aligned without CLIP_EN. It
should be format aligned with CLIP_EN. That is 1 byte. However, the base address
before clipping must be 4 bytes aligned.
A04100E4
RESZ_SMBASE_V
32
A04100F0
RESZ_GMCCON
32
Image Resizer GMC Control Register
A04100FC
RESZ_CLIP
32
Image Resizer CLIP Register
A0410100
RESZ_TILE_CFG
32
A0410104
RESZ_TILE_START_POS
_X1
32
A041010C
RESZ_TILE_START_POS
_Y1
32
A0410114
RESZ_BI_TRUNC_ERR_
COMP1
32
A0410118
RESZ_BI_INIT_RESID1
32
Image Resizer Tile Configuration Register
Configuration setting of tile-based resizer.
Image Resizer Tile Start Position X Register 1
Start setting of tile-based resizer.
Image Resizer Tile Start Position Y Register 1
Start setting of tile-based resizer.
Image Resizer Bilinear Truncation Error Compensation Register 1
Bilinear setting of tile-based resizer.
Image Resizer Bilinear Initial Residual Register 1
Bilinear setting of tile-based resizer.
All undefined bit fields must be set as the default values.
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
A0410000
Bit
31
30
29
000000
00
Image Resizer Configuration Register
RESZ_CFG
28
27
26
25
24
23
0
0
VS
RS
TE
N2
RW
0
VS
RS
TE
N1
RW
0
22
21
0
0
20
19
0
0
18
17
0
0
Name
Type
Reset
Bit
0
0
15
14
0
13
0
12
0
11
0
10
0
9
Name
8
7
6
VS
RS
TE
N0
RW
0
5
4
DC
M_
DIS
PC
ON
RW
0
RW
0
3
2
1
16
MO
DE1
RW
0
0
SRC1
Type
Reset
0
Bit(s)
Name
Description
16
MODE1
Mode selection of 1st pass of resizer.
0: Frame mode.
1: Tile mode.
8
VSRSTEN2
Resizer auto reset when SRC1 is camera and pixel drop is detected.
0: Disable.
1: Enable.
7
VSRSTEN1
Resizer auto reset when SRC1 is camera and new frame comes and previous
input is complete but output not complete.
0: Disable. (skip current frame)
1: Enable. (Give up previous frame)
6
VSRSTEN0
Resizer auto reset when SRC1 is camera and new frame comes.
0: Disable.
1: Enable.
5
DCM_DIS
DCM enabling/disabling setting.
0: Enable DCM.
1: Disable DCM.
PCON
The register bit specifies if resizing continues whenever an image finishes
processing. Once continuous run for pixel-based resizing is enabled and pixelbased resizing is running, the only way to stop is to reset resizer. If to stop
immediately is desired, reset resizer directly. If the last image is desired, set
the register bit to '0' first. Then wait until image resizer is not busy again.
Finally reset image resizer.
0: Single run.
1: Continuous run.
SRC1
The register bit specified the input source of 1st pass of resizer.
0: Camera input.
1: Memory input. Packet UYVY format.
2: Memory input. Planar YUV420 format.
3: Memory input. Planar YUV422 format.
4
1:0
A0410004
Bit
31
0
0
0
29
0
0
0
0
28
27
26
25
24
23
0
0
0
22
21
0
0
20
19
0
0
0
0
0
0
0
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
7
6
0
0
17
0
0
RS
T
RW
0
0
0
5
4
0
EN
A
RW
0
0
0
3
2
0
0
1
Name
Type
Reset
© 2015 - 2018 Airoha Technology Corp.
0
18
Name
Type
Reset
Bit
RW
000000
00
Image Resizer Control Register
RESZ_CON
30
0
16
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
16
RST
Writing '1' to the register will cause resizing to stop. Resizer itself would clear this bit to 0
when it is ready to be enabled. When this bit is 1, do not enable resizer.
0
ENA
Writing '1' to the register bit to enable resizer.
A0410008
Bit
31
30
29
000000
00
Image Resizer Status Register
RESZ_STA
28
27
26
25
24
23
0
0
22
21
0
0
20
19
0
0
18
17
0
0
Name
Type
Reset
Bit
0
15
Name
0
0
14
13
0
12
ER
R5
ER
R4
ER
R3
W1C
0
W1C
0
W1C
0
0
11
0
10
0
9
8
ER
R2
ER
R1
ER
R0
W1C
0
W1C
0
W1C
0
7
6
5
4
3
CR
OP
BU
SY
2
INB
US
Y
1
16
DC
M_
STA
TU
S
RO
0
ME
MI
NB
US
Y
RO
0
0
OU
TB
US
Y
Type
Reset
0
Bit(s)
Name
Description
16
DCM_STATUS
DCM status.
14
ERR5
Error status. Input pixel is not enough when crop is enabled. Write this bit to
1 or reset resizer to clear.
13
ERR4
Error status. Drop frame due to LOCK is changed between start point of
original image and start point of cropped image. Write this bit to 1 or reset
resizer to clear.
12
ERR3
Error status. Drop frame due to LOCK when vsync comes. Write this bit to 1 or
reset resizer to clear.
10
ERR2
Error status. Input complete but output not complete when new frame comes.
Write this bit to 1 or reset resizer to clear.
9
ERR1
Error status. Input pixel is not enough. Write this bit to 1 or reset resizer to
clear.
8
ERR0
Error status. Pixel over run (Camera request but resizer not ack). Write this
bit to 1 or reset resizer to clear.
4
CROPBUSY
Cropping busy status.
0
2
INBUSY
Input busy status.
1
MEMINBUSY
Memory input busy status.
0
OUTBUSY
Output busy status.
A041000C
Bit
Name
Type
Reset
Bit
31
0
15
0
14
29
0
13
0
28
0
12
27
0
11
26
0
10
25
0
9
24
23
0
0
0
RO
0
0
RO
0
0
0
8
7
21
0
0
0
LC
KD
RPI
NT
RC
0
6
0
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
RO
0
000000
00
22
Name
Type
Reset
0
Image Resizer Interrupt Register
RESZ_INT
30
0
5
20
19
0
0
MI
NI
NT
PX
DI
NT
RC
0
RC
0
4
3
18
17
0
0
0
FST
AR
T1I
NT
RC
0
2
1
16
0
0
FE
ND
INT
RC
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
5
LCKDRPINT
Interrupt for drop frame for lock occurs. No matter the register bit
RESZ_FRCFG.LCKDRPINTEN is enabled or not, the register bit will be active
whenever drop frame for lock occurs. It could be as software interrupt by
polling the register bit. Clear it by reading the register.
4
MININT
Interrupt for memory input. No matter the register bit
RESZ_FRCFG.MININTEN is enabled or not, the register bit will be active
whenever memory input is done. It could be as software interrupt by polling
the register bit. Clear it by reading the register.
3
PXDINT
Interrupt for pixel drop. No matter the register bit RESZ_FRCFG.PXDINTEN
is enabled or not, the register bit will be active whenever pixel drop occurs. It
could be as software interrupt by polling the register bit. Clear it by reading
the register. Useful for error detection.
FSTART1INT
Interrupt for frame start of 1st pass. No matter the register bit
RESZ_FRCFG.FSTART1INTEN is enabled or not, the register bit will be active
whenever a new frame of 1st pass arrives. It could be as software interrupt by
polling the register bit. Clear it by reading the register. Useful for digital
zooming.
FENDINT
Interrupt for frame end. No matter the register bit
RESZ_FRCFG.FENDINTEN is enabled or not, the register bit will be active
whenever whole image is done. It could be as software interrupt by polling the
register bit. Clear it by reading the register.
1
0
A0410010
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31
0
RESZ_SRCSZ1
30
0
29
0
28
0
000000
00
Image Resizer Source Image Size Register 1
27
26
0
0
25
0
24
23
0
0
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
22
21
20
19
5
4
0
0
3
2
0
0
7
6
0
HS
RW
0
0
0
WS
RW
0
Name
Description
26:16
HS
The register field specifies the height of source image.
10:0
WS
The register field specifies the width of source image.
18
17
16
0
0
1
0
0
0
0
0
Note: WS and HS must be format aligned (RESZ_CROPLR1.CROP_EN = 0).
src
format
HS
WS
caminf
YUV444
Multiples of 1
Multiples of 1
YUV420
Multiples of 2
Multiples of 2
YUV422
Multiples of 1
Multiples of 2
UYVY
Multiples of 1
Multiples of 2
memory
A0410014
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
RESZ_TARSZ1
30
0
29
0
28
0
000000
00
Image Resizer Target Image Size Register 1
27
0
26
0
25
0
24
23
0
0
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
22
21
20
19
5
4
0
0
3
2
0
0
7
6
0
HT
RW
0
0
0
WT
RW
0
© 2015 - 2018 Airoha Technology Corp.
18
17
16
0
0
1
0
0
0
0
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
26:16
HT
The register field specifies the height of target image.
10:0
WT
The register field specifies the width of target image.
A0410018
Bit
Name
Type
Reset
Bit
Name
Type
Reset
RESZ_HRATIO
1
31
30
29
28
27
26
25
24
23
22
21
8
7
6
0
0
5
4
0
0
15
14
13
12
11
10
9
0
RATIO[31:16]
RW
0
0
0
0
0
0
0
0
0
RATIO[15:0]
RW
0
0
0
0
0
0
0
0
20
19
0
0
3
2
0
0
Bit(s)
Name
Description
31:0
RATIO
Ratio = (RESZ_TARSZ.WT < RESZ_SRCSZ.WS ) ?
(RESZ_TARSZ.WT -1) * 220 / (RESZ_SRCSZ.WS -1) :
(RESZ_SRCSZ.WS) * 220 / RESZ_TARSZ.WT
A041001C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
RESZ_VRATIO
1
31
30
29
28
27
26
25
24
23
22
21
8
7
6
0
0
5
4
0
0
15
14
13
12
11
10
9
0
0
0
0
0
0
0
0
RATIO[15:0]
RW
0
0
0
0
0
0
0
Bit(s)
11:0
0
0
0
28
0
0
0
0
0
26
0
25
0
24
23
0
0
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
7
0
22
21
0
0
6
5
0
0
17
0
0
1
0
0
0
0
RESIDUAL
RW
0
0
Name
Description
RESIDUAL
Residual = RESZ_SRCSZ1.WS % RESZ_TARSZ1.WT
© 2015 - 2018 Airoha Technology Corp.
16
0
000000
00
20
19
0
0
3
2
0
0
4
0
18
Image Resizer Horizontal Residual Register 1
27
16
000000
00
2
Ratio = (RESZ_TARSZ.HT < RESZ_SRCSZ.HS ) ?
(RESZ_TARSZ.HT -1) * 220 / (RESZ_SRCSZ.HS -1) :
(RESZ_SRCSZ.HS) * 220 / RESZ_TARSZ.HT
29
0
3
RATIO
30
1
0
31:0
31
0
0
Description
Bit
Name
Type
Reset
Bit
Name
Type
Reset
0
19
Name
RESZ_HRES1
17
20
Bit(s)
A0410020
18
Image Resizer Vertical Ratio Register 1
RATIO[31:16]
RW
0
0
0
000000
00
Image Resizer Horizontal Ratio Register 1
18
17
16
0
0
1
0
0
0
0
0
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MT2523 Series Reference Manual
A0410024
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
11:0
31
30
0
0
29
28
0
0
27
0
26
0
25
0
24
23
0
0
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
7
0
22
21
0
0
6
5
RESIDUAL
RW
0
0
Name
Description
RESIDUAL
Residual = RESZ_SRCSZ1.HS % RESZ_TARSZ1.HT
30
0
0
29
0
20
19
0
0
3
2
0
0
4
18
17
0
0
1
0
0
0
0
28
0
27
0
26
0
25
0
24
23
0
0
22
21
0
0
7
6
0
0
20
19
0
0
5
4
0
0
18
17
0
0
15
14
13
12
11
10
9
8
3
2
0
0
1
Type
Reset
0
0
0
0
0
0
0
0
Bit(s)
Name
Description
LOCK
Writing '1' to the register bit prevents updating double buffered registers.
Name
0
16
0
000000
00
Image Resizer LOCK Register
RESZ_LOCK
31
000000
00
Image Resizer Vertical Residual Register 1
15
A041002C
Bit
Name
Type
Reset
Bit
RESZ_VRES1
0
16
0
0
LO
CK
RW
0
Note: If lock is set to 1, and vsync comes, the frame will be dropped because the setting is not reliable. So please keep the locked
region as short as possible. LCKDRP interrupt can be used to detect this event.
A0410030
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
RESZ_ORIGSZ
1
31
30
0
0
29
0
28
0
27
0
26
0
25
0
24
23
0
0
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
Name
000000
00
Image Resizer Crop Original Size Register 1
7
0
22
21
20
6
5
4
ORIGSZ_HS
RW
0
0
0
ORIGSZ_WS
RW
0
0
0
19
0
18
17
16
3
2
0
0
1
0
0
0
0
0
0
Description
26:16
ORIGSZ_HS
Resizer input image height before cropping for pass 1.
10:0
ORIGSZ_WS
Resizer input image width before cropping for pass 1.
Note: If CROP_EN = 1 and SRC is memory, ORIGSZ_WS and ORIGSZ_HS must be format aligned.
src
format
ORIGSZ_HS
ORIGSZ_WS
caminf
YUV444
Multiples of 1
Multiples of 1
YUV420
Multiples of 2
Multiples of 2
YUV422
Multiples of 1
Multiples of 2
UYVY
Multiples of 1
Multiples of 2
memory
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
A0410034
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31
RESZ_CROPLR1
30
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
CROP_EN
RW
0
0
29
0
28
Image Resizer Crop Left Right Register 1
31
0
27
0
26
0
Name
Description
CROP_EN
Crop enable for pass 1.
25
0
24
23
0
0
22
21
20
5
4
7
6
0
CROP_L
RW
0
0
0
0
CROP_R
RW
0
0
26:16
CROP_L
Horizontal cropping start/left position index for pass 1.
10:0
CROP_R
Horizontal cropping end/right position index for pass 1.
A0410038
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31
0
RESZ_CROPTB
1
30
0
29
0
28
0
0
27
0
26
0
25
0
24
23
0
0
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
7
0
22
21
20
6
5
4
CROP_T
RW
0
0
0
0
0
1
0
0
0
0
0
19
0
CROP_B
RW
0
0
0
18
17
16
3
2
0
0
1
0
0
0
0
0
0
Description
CROP_T
Vertical cropping start/top position index for pass 1.
Vertical cropping end/bottom position index for pass 1.
0
0
000000
00
CROP_B
31
16
2
10:0
Bit
Name
Type
Reset
Bit
17
3
26:16
A0410040
00000000
18
Image Resizer Crop Top Bottom Register 1
15
Name
19
RESZ_FRCFG
30
0
29
0
15
14
13
Name
LC
KI
NT
EN
MI
NI
NT
EN
PX
DI
NT
EN
Type
Reset
RW
0
RW
0
RW
0
28
0
12
0
Image Resizer Fine Resizing Configuration
Register
27
0
11
FST
AR
T1I
NT
EN
RW
0
26
0
10
25
24
23
22
21
20
000000
02
19
18
9
8
0
0
7
6
0
0
5
4
0
WMSZ1
RW
0
0
3
2
0
0
0
0
0
0
0
0
0
17
0
16
0
1
0
1
0
FE
ND
INT
EN
RW
0
Bit(s)
Name
Description
21:16
WMSZ1
It stands for working memory size for single pass or 1st pass of two pass
resizing. The register specifies how many lines after horizontal resizing can
be filled into working memory. Its minimum value is 2 and maximum value is
31. And the formula is (1920 / ((WT+3)/4*4)).
15
LCKINTEN
Drop frame due to lock interrupt enable.
14
MININTEN
Memory input interrupt enable.
13
PXDINTEN
Pixel drop interrupt enable.
11
FSTART1INTEN
Frame start of 1st pass interrupt enable.
0: Interrupt for frame start of 1st pass is disabled.
1: Interrupt for frame start of 1st pass is enabled.
10
FENDINTEN
Frame end interrupt enable.
0: Interrupt for frame end is disabled.
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
1: Interrupt for frame end is enabled.
A0410090
Bit
Name
Type
Reset
Bit
RESZ_DBGCF
G
31
30
0
0
29
0
28
0
000002
00
Image Resizer Debug Configuration Register
27
0
0
0
23
0
0
7
6
21
0
0
20
19
0
0
5
4
0
0
18
17
0
0
3
2
0
0
1
0
0
0
0
0
0
12
Type
Reset
0
0
0
0
Bit(s)
Name
Description
11
NODB
Force register not double buffered.
0: Double buffered, registers are effective when camera vsync arrives or memory input
starts.
1: No double buffered.
10
PHR1
Force horizontal resizing to execute even though it's not necessary.
0: Normal operation.
1: Force horizontal resizing to execute even though it's not necessary.
9
PVR1
Force vertical resizing to execute even though it's not necessary.
0: Normal operation.
1: Force vertical resizing to execute even though it's not necessary.
A04100B0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31
0
RESZ_INFO0
30
0
29
0
28
0
27
0
26
0
14
13
12
11
10
0
0
0
0
0
0
25
24
23
22
9
8
7
6
IN_VERT_CNT
RO
0
0
0
0
IN_HORZ_CNT
RO
0
0
0
0
IN_VERT_CNT
Input vertical counter.
15:0
IN_HORZ_CNT
Input horizontal counter.
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31
0
0
0
20
19
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
Description
31:16
A04100B4
21
16
000000
00
Image Resizer Information Register 0
15
Name
PV
R1
RW
1
8
22
13
PH
R1
RW
0
9
24
14
NO
DB
RW
0
10
25
15
Name
11
26
RESZ_INFO1
30
0
29
0
28
0
000000
00
Image Resizer Information Register 1
27
0
26
0
15
14
13
12
11
10
0
0
0
0
0
0
25
24
23
22
9
8
7
6
OUT_VERT_CNT
RO
0
0
0
0
OUT_HORZ_CNT
RO
0
0
0
0
Name
Description
31:16
OUT_VERT_CNT
Output vertical counter.
15:0
OUT_HORZ_CNT
Output horizontal counter.
© 2015 - 2018 Airoha Technology Corp.
21
0
20
19
18
17
16
5
4
0
0
3
2
0
0
1
0
0
0
0
0
0
0
0
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MT2523 Series Reference Manual
A04100D
C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31:0
Bit(s)
31:0
30
29
28
27
26
25
15
14
13
12
11
10
9
Name
Bit(s)
31:0
24
23
22
21
20
19
18
17
16
8
7
6
5
4
3
2
1
0
SMBASE_Y[31:16]
RW
SMBASE_Y[15:0]
RW
Description
RESZ_SMBAS
E_U
Image Resizer U-Component Source Memory Base
Address Register
31
30
29
28
27
26
25
15
14
13
12
11
10
9
Name
24
23
22
21
20
19
18
17
16
8
7
6
5
4
3
2
1
0
SMBASE_U[31:16]
RW
SMBASE_U[15:0]
RW
Description
RESZ_SMBAS
E_V
Image Resizer V-Component Source Memory Base
Address Register
31
30
29
28
27
26
25
15
14
13
12
11
10
9
Name
xxxxxxx
x
24
23
22
21
20
19
18
17
16
8
7
6
5
4
3
2
1
0
SMBASE_V[31:16]
RW
SMBASE_V[15:0]
RW
Description
SMBASE_V
31
0
15
RESZ_GMCCO
N
30
0
14
29
0
13
28
0
12
000000
00
Image Resizer GMC Control Register
27
26
25
24
11
10
9
8
RD_MIN_REQ_INTERVAL
RW
0
0
0
0
23
0
7
22
21
0
0
6
5
20
19
0
0
4
18
17
0
0
3
2
0
0
1
RD
_M
AX
_B
L
Name
Type
Reset
xxxxxxx
x
SMBASE_U
A04100F0
Bit
Name
Type
Reset
Bit
xxxxxxx
x
SMBASE_Y
A04100E4
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Image Resizer Y-Component Source Memory Base
Address Register
31
A04100E0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
RESZ_SMBAS
E_Y
0
0
0
0
0
0
0
0
0
0
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0
RW
0
0
16
0
0
RD
_M
IN_
RE
Q_
EN
RW
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
RD_MIN_REQ_INTER
VAL
It specifies how many AHB bus cycles between two GMC requests for read
port.
4
RD_MAX_BL
Specify the maximum burst length of GMC request for read port.
0: Burst 4 beats access, and one beat is 4 bytes. Total data amount is 16 bytes per access.
1: Single 4 bytes access.
0
RD_MIN_REQ_EN
Enable GMC port minimum request control for read port.
31:20
A04100FC
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31
30
15
14
13
12
11
10
9
8
0
0
0
0
0
0
0
0
CLI
P_
EN
RW
0
0
29
0
000000
00
Image Resizer CLIP Register
RESZ_CLIP
28
27
0
0
26
0
25
0
24
23
0
0
7
0
22
21
0
0
6
5
MEM_WD
RW
0
0
Name
Description
31
CLIP_EN
Enable clip function of memory in mode.
0: Disable.
1: Enable.
11:0
MEM_WD
Width of background image. The unit is pixels.
20
19
0
0
3
2
0
0
4
18
17
16
0
0
1
0
0
0
0
0
mem_wd
4 bytes align
smbase
ws
hs
Figure 25-4. Memory clipping chart
Note: MEM_WD should be format aligned.
format
MEM_WD
YUV420
Multiples of 2
YUV422
Multiples of 2
UYVY
Multiples of 2
All of the following registers are for tile-based processing. These registers are inactive while RESZ_CFG.MODE1 is
frame mode.
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MT2523 Series Reference Manual
A0410100
Bit
Name
Type
Reset
Bit
31
0
RESZ_TILE_C
FG
30
0
29
0
28
0
000000
00
Image Resizer Tile Configuration Register
27
0
26
25
0
0
24
23
0
0
22
21
0
0
7
6
0
0
20
19
0
0
5
4
0
0
18
17
3
2
0
0
0
0
SA
_E
N_
Y1
RW
0
15
14
13
12
11
10
9
8
Type
Reset
0
0
0
0
0
0
0
0
Bit(s)
Name
Description
1
SA_EN_Y1
Vertical source accumulation enable siganl of 1st pass of resizer.
0: Disable (frame_target_height ≥ frame_source_height).
1: Enable (frame_target_height < frame_source_height).
0
SA_EN_X1
Horizontal source accumulation enable siganl of 1st pass of resizer.
0: Disable (frame_target_width ≥ frame_source_width).
1: Enable (frame_target_width < frame_source_width).
Name
A0410104
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
30:0
31
0
Bit(s)
30:0
30
0
29
0
28
0
27
0
26
0
14
13
12
11
10
0
0
0
0
0
0
25
24
23
22
21
20
19
9
8
7
6
5
4
0
0
3
2
0
0
0
TILE_START_POS_X[30:16]
RW
0
0
0
0
0
TILE_START_POS_X[15:0]
RW
0
0
0
0
17
0
0
1
0
0
0
0
Description
TILE_START_POS_X
Horizontal start position of bilinear interpolation. Format: Q0.11.20.
Horizontal start weight of source accumulation. Format: Q0.0.20.
31
0
30
0
29
0
28
0
0
26
0
15
14
13
12
11
10
0
0
0
0
0
0
25
24
23
22
21
20
19
9
8
7
6
5
4
0
0
3
2
0
0
0
TILE_START_POS_Y[30:16]
RW
0
0
0
0
0
TILE_START_POS_Y[15:0]
RW
0
0
0
0
0
18
17
0
0
1
0
0
0
0
Name
Description
TILE_START_POS_Y
Vertical start position of bilinear interpolation. Format: Q0.11.20. Vertical
start weight of source accumulation. Format: Q0.0.20.
© 2015 - 2018 Airoha Technology Corp.
16
000000
00
Image Resizer Tile Start Position Y Register 1
27
SA
_E
N_
X1
RW
0
18
Name
RESZ_TILE_S
TART_POS_Y1
0
0
000000
00
Image Resizer Tile Start Position X Register 1
15
A041010C
Bit
Name
Type
Reset
Bit
Name
Type
Reset
RESZ_TILE_S
TART_POS_X1
1
16
16
0
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A0410114
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31
RESZ_BI_TRU
NC_ERR_COM
P1
30
29
28
Image Resizer Bilinear Truncation Error
Compensation Register 1
27
26
25
24
23
22
21
20
7
6
5
4
15
14
13
12
11
10
9
8
0
BI_TRUNC_ERR_COMP_Y
RW
0
0
0
0
0
0
0
0
0
0
0
0
BI_TRUNC_ERR_COMP_X
RW
0
0
0
0
0
0
0
0
0
0
0
000000
00
19
18
17
0
16
3
2
0
0
1
0
0
0
0
0
0
Name
Description
27:16
BI_TRUNC_ERR_COM
P_Y
Vertical condition of truncation error compensation by accumulated residual.
11:0
BI_TRUNC_ERR_COM
P_X
Horizontal condition of truncation error compensation by accumulated
residual.
A0410118
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bit(s)
31
RESZ_BI_INIT
_RESID1
30
29
28
27
26
25
24
23
22
21
20
19
7
6
5
4
0
0
3
2
0
0
15
14
13
12
11
10
9
8
0
BI_INIT_RESID_Y
RW
0
0
0
0
0
0
0
0
0
0
0
BI_INIT_RESID_X
RW
0
0
0
0
0
0
0
Name
000000
00
Image Resizer Bilinear Initial Residual Register 1
0
0
0
18
17
16
0
0
1
0
0
0
0
0
Description
28:16
BI_INIT_RESID_Y
Vertical initial residual for truncation error compensation.
12:0
BI_INIT_RESID_X
Horizontal initial residual for truncation error compensation.
Since the bilinear-interpolation step is represented by fixed-point representation, there are truncation errors in the
computational process. In order to reduce the truncation-error effect, resizer will compensate the errors at each
integer interpolation point. The following is the example.
10 pixels
15 pixels
10 2
5
= ≈ 0.625 = (3 - bit binary precision)
15 3
8
residual = 10 % 15 = 10
⇒ interpolation position
2 4 6 8
0
3 3 3 3
interpolation position by fixed point
5 10 15 21
0
8 8 8 8
16
(truncation-error compensation)
incremental residual
8
step (ratio) =
0 10 5 15 10
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MT2523 Series Reference Manual
26. Image Rotator DMA
26.1. General Description
Image Rotator DMA receives YUV444 pixel data from input interface as shown in Figure 26-1, and output to
memory. The architecture is shown in Figure 26-2. When writing to memory, it supports various formats.
Supported Ooutput packed formats include: UYVY (YUYV422). Supported oOutput planar formats include: scanline
planarYUV420 and YUV422. In this specification, generic YUV format refers to scanline planar YUV420/YUV422.
These output formats ares shown in Table 26-1.
clk
req
pixel[31:0]
ack
pixel #1
pixel #2
Figure 26-1. Image Rotator DMA Input Interface
input from previous engine
ROT_DMA
output to memory
Figure 26-2. Image Rotator DMA Architecture
Table 26-1. ImageRotator DMA Output Format
Output formats
UYVY
Planar YUV420
Planar YUV422
26.1.1.
Feature List
•
Descriptor based mode
•
Hardware auto loop mode
•
Color formats transformation
•
Output Image pitching for UYVY
•
Rotation for UYVY
•
Hardware semaphore support
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26.1.2.
Descriptor Format
There are six6 enable signals indicating each 4- bytes command. The full sets of rotator DMA’s descriptor is 24s
bytes including six6 segments and with four4 bytes each segment.
IDMA_QUEUE_BASEADDR + des_size * rpt
offset
0x0
en
y_dst_str_addr
4
en
u_dst_str_addr
4
en
v_dst_str_addr
4
en
src_w
src_h
4
0x0
0x4
en
dst_w_in_byte
0x8
0xc
4
0x10
en
con
4
0x14
Figure 26-3. Image Rotator DMA Descriptor Format
26.1.3.
Frame buffer start address and size notes
Output frame buffer start address must be 4- byte alignment.
The size of each frame buffer must be a multiple of four4 bytes. That is, if output format is YUV420. Y, U and V
plane must allocate size of multiple of four4 bytes. If the image size will not occupyied every 4 bytes allocated, the
residual bytes not used will be written with dummy data. Dummy data value is undefined and scenario dependent.
The table belowFollowing table summarizes base address and buffer size restrictions.
Table 26-2. Base Address and Buffer Size Restrictions
Y, U, V frame
start address
(bytes)
Width (pixels)
Height (pixels)
*HW output
size (bytes)
DST_W_IN_BYTE
(bytes)
UYVY(packed)
4x
2x
1x
4x
4x
YUV422(planar)
4x
2x
1x
4x
-
YUV420(planar)
4x
2x
2x
4x
-
YUV422(planar)
with pitch enabled
4x
8x
1x
4x
8x
YUV420(planar)
with pitch enabled
4x
8x
2x
4x
8x
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MT2523 Series Reference Manual
26.1.4.
Rotation
Rotator supports 90 degree of rotation with flip for UYVY color format image of width smaller than or equal to 480
pixels.
26.2.
Register Definition
The base address of ROT_DMA is 0xA040_0000.
Register Address
Register Function
Acronym
ROT_DMA+0000h
Rotator DMA Interrupt Flag
ROT_DMA_IRQ_FLAG
ROT_DMA+0008h
Rotator DMA Interrupt Flag Clear
ROT_DMA_IRQ_FLAG_CLR
ROT_DMA+0018h
Rotator DMA Configuration
ROT_DMA_CFG
ROT_DMA+0028h
Rotator DMA Stop Register
ROT_DMA_STOP
ROT_DMA+0030h
Rotator DMA Enable Status
ROT_DMA_EN
ROT_DMA+0038h
Rotator DMA Reset Register
ROT_DMA_RESET
ROT_DMA+0300h
Image Rotator DMA SLOW DOWN
ROT_DMA_SLOW_DOWN
ROT_DMA+0318h
Image Rotator DMA Y Destination Start
Address
ROT_DMA_ Y_DST_STR_ADDR
ROT_DMA+0320h
Image Rotator DMA U Destination Start
Address
ROT_DMA_ U_DST_STR_ADDR
ROT_DMA+0328h
Image Rotator DMA V Destination Start
Address
ROT_DMA_ V_DST_STR_ADDR
ROT_DMA+0330h
Image Rotator DMA Source Image Size
ROT_DMA_SRC_SIZE
ROT_DMA+0348h
Image Rotator DMA Destination Image
Size
ROT_DMA_DST_SIZE
ROT_DMA+0368h
Image Rotator DMA Control Register
ROT_DMA_CON
ROT_DMA+
Rotator DMA Interrupt Flag
0000h
Bit
31
30
29
28
27
26
25
24
ROT_DMA_I
RQ_FLAG
23
22
21
20
19
18
17
Name
Type
Reset
Bit
16
FLAG
0_IR
Q_EN
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
R/W
0
0
FLAG
0
Name
Type
Reset
R/W
0
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This register is used by software to parse error message and some events triggered by the engine.
Occurrence of these events/error messages is denoted by flags. Flags can issue interrupt which is level
triggered. To turn on interrupt issue capability, assert IRQ_EN. Note that interrupt will only issue when
engine’s EN is asserted. This behavior give software opportunity to prevent unnecessary interrupt before
start of engine.
For each flag (e.g. FLAG1):
When read:
0 Event/error not took place
1 Event/error took place
When write:
0 Clear flag. To clear flags, Using IRQ_FLAG_CLR register is preferred.
1 Software asserted event/error
For each flag IRQ_EN (e.g. FLAG1_IRQ_EN):
IRQ_EN Interrupt enable. Enable or disable corresponding interrupt issue capability. If the bit is deasserted, the corresponding flag will still raise in respond to the event, but will not issue interrupt.
If asserted, the interrupt will issue at EN==1 if the event takes place.
0 Disable.
1 Enable.
Flags descriptions:
FLAG0
This is raised when engine finished the descriptor and INT_EN is asserted.
ROT_DMA_I
RQ_FLAG_CL
R
ROT_DMA+
Rotator DMA Interrupt Flag Clear Register
0008h
Bit
Name
Type
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
16
0
FLAG
0_CL
R
Name
Type
WO
FLAGn_CLR Clear interrupt flag number n. When clearing interrupt flag and interrupt flag trigger
event occur at the same time. Event trigger was given higher priority to let software programmer
still notified by the event.
0 Do not clear (no effect on interrupt flag)
1 Clear interrupt flag
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MT2523 Series Reference Manual
ROT_DMA+
Rotator DMA Configuration
0018h
Bit
31
30
29
28
27
26
25
24
ROT_DMA_C
FG
23
22
21
20
19
18
17
FRAM
E_SY
Name
NC_E
N
Type R/W
Reset 0
Bit
15
16
YUV_
PITC
H_EN
14
Name
DROP
Type
Reset
R/W
0
13
12
11
10
9
8
7
6
5
4
3
2
1
0
AUTO
_LOO
P
R/W
0
AUTO_LOOP Auto loop. Automatically loop back to the first command when all commands are
consumed.
0 Disable
1 Enable
DROP this register only takes effect when en=0 (engine at turn off status)
0 stall previous engine’s input data if any
1 drop previous engine’s input data if any
YUV_PITCH_EN
Enable pitch mechanism for generic YUV output format. This register only takes
effect when OUTPUT_FORMAT is generic YUV.
0 Y, U, V data will be written to memory in continuous address respectively if
OUTPUT_FORMAT is generic YUV.
1 Y plane data will be written to memory in pitch value, DST_W_IN_BYTE and U, V plane data
will be written to memory in pitch value, DST_W_IN_BYTE/2. The source width must be
multiple of 8.
FRAME_SYNC_EN Frame sync signal from camera. No effect when the DMA engine is not part of
camera image datapath.
0 Disable
1 Enable
ROT_DMA+
Rotator DMA Stop Register
0028h
Bit
Name
Type
Reset
Bit
Name
Type
Reset
ROT_DMA_S
TOP
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
16
0
STOP
R//W
0
Stop the engine engine by writing this register. When writing 1, DMA engine will stop after finishing the
current frame. When writing 0, DMA stop will be de-asserted. This status will be checked at each end of
frame. During the engine operation, this status has no effect.
STOP Stop (disable) the DMA engine.
0 De-assert stop status
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1
Stop the DMA engine at frame end.
ROT_DMA+
Rotator DMA Enable Status Register
0030h
ROT_DMA_E
N
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
EN
Enable Status. When read, this indicates whether DMA is enabled or not. To enable the engine,
write 1 into this register. To stop the engine, use STOP, WARM_RESET or HARD_RESET
instead. In register mode and without auto loop, engine will set en = 0 when finishing its job. In
auto loop, only when SW assert stop/reset can turn off engine.
0
EN
R/W
0
ROT_DMA+
Rotator DMA Reset Register
0038h
Bit
Name
Type
Reset
Bit
16
ROT_DMA_R
ESET
31
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
17
16
1
0
WAR HAR
M_RS D_RS
T
T
Name
Type
Reset
R/W R/W
0
0
HARD_RST Reset DMA descriptor queue and control register settings. This will clear control settings
and in Image DMA registers immediately. This reset may cause pending bus transactions left in
the DMA engine. Software should determine an amount of safe reset time and assert the reset for
that period of time.
0 De-assert reset
1 Assert reset
WARM_RST Reset DMA descriptor queue and control register settings. This will clear control settings
in Image DMA registers after no pending bus transactions left. This is often so called safe reset.
This bit will be de-asserted automatically after the settings are cleared. Software should wait for
this bit to be de-asserted by hardware before performing other DMA tasks.
0 De-assert reset
1 Assert reset
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ROT_DMA+
Image Rotator DMA SLOW DOWN
0300h
Bit
Name
Type
Reset
Bit
31
30
29
28
27
26
25
24
23
ROT_DMA_S
LOW_DOWN
22
21
20
19
18
17
6
5
4
3
2
1
16
SLOW_CNT
R/W
0
15
14
13
12
11
10
9
8
7
0
SLO
W_E
N
Name
Type
Reset
R/W
0
SLOW_EN
Slow down enable. Assert this to slow down engine. Amount of slow down is determined
by SLOW_CNT. Enable this to decrease the performance of rotator.
0 Disable
1 Enable
SLOW_CNT Slow down count. Delay SLOW_CNT cycle to issue next hardware bus transaction. This
value is not adjustable during engine operation.
ROT_DMA_
Y_DST_STR_
ADDR
ROT_DMA+ Image Rotator DMA Y Destination Start
0318h
Address
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
5
4
3
2
1
0
Y_DST_STR_ADDR
R/W
0
15
14
13
12
11
10
9
8
7
6
Y_DST_STR_ADDR
R/W
0
Y_DST_STR_ADDR Destination Y start address. This address indicate the pitch window start
address.
When output format is generic YUV, this address indicate the Y plane’s start address.
When rotation, an offset must be added, please refer to the ”Frame start address” section.
ROT_DMA_
U_DST_STR_
ADDR
ROT_DMA+ Image Rotator DMA U Destination Start
0320h
Address
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
5
4
3
2
1
0
U_DST_STR_ADDR
R/W
0
15
14
13
12
11
10
9
8
7
6
U_DST_STR_ADDR
R/W
0
U_DST_STR_ADDR Destination U start address. When output format is not generic YUV, this is not
used.
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When output format is generic YUV, this address indicates the U plane’s start address in planar format.
ROT_DMA_
V_DST_STR_
ADDR
ROT_DMA+ Image Rotator DMA V Destination Start
0328h
Address
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
5
4
3
2
1
0
V_DST_STR_ADDR
R/W
0
15
14
13
12
11
10
9
8
7
6
V_DST_STR_ADDR
R/W
0
V_DST_STR_ADDR Destination V start address. When output format is not generic YUV, this is not
used.
When output format is generic YUV, this address indicates the V plane’s start address.
ROT_DMA+
Image Rotator DMA Source Image Size
0330h
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
ROT_DMA_S
RC_SIZE
20
19
18
17
16
4
3
2
1
0
SRC_H
15
14
13
12
11
10
9
8
7
R/W
0
5
6
SRC_W
R/W
0
SRC_W: (must format Alignment)
Source width. This number indicates the input image’s width in pixel. Width of 0 is not valid
SRC_H: (must format Alignment)
Source height. This number indicates the input image’s height in pixel. Height of 0 is not valid
ROT_DMA+
Image Rotator DMA Destination Image Size
0348h
Bit
Name
Type
Reset
Bit
Name
Type
Reset
ROT_DMA_D
ST_SIZE
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
DST_W_IN_BYTE
R/W
0
DST_W_IN_BYTE: (must format Alignment)
Destination width in bytes. This number indicates the destination image’s width in pixel, and start from 1.
0 means image size = 0 pixels. dst_w_in_byte = dst_w * 2 for UYVY or dst_w*1 for YUV420/YUV422
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MT2523 Series Reference Manual
ROT_DMA+
Image Rotator DMA Control Register
0368h
Bit
31
30
29
28
27
INT_
NOP
EN
ROT_
EN
Type R/W R/W
Reset 0
0
Bit
15
14
R/W
0
11
Name
13
12
26
25
24
ROT_DMA_C
ON
23
22
21
20
19
18
17
16
7
6
5
4
3
2
1
0
V_SU
BSAM
PLE
10
9
R/W
0
8
Name
THRESHOLD
Type
Reset
R/W
3
ULTR PROT
A_EN _EN
R/W R/W
0
1
OUTPUT_FORMAT
R/W
0
OUTPUT_FORMAT Output format
4: UYVY (YUYV422)
7: Generic YUV
Others: Reserved
V_SUBSAMPLE Vertical sub-sampling. If output format is not generic YUV, this bit is meaningless. If
output format is generic YUV
0 YUV422
1 YUV420
THRESHOLD Bus control threshold, the maximum output data size per bus transaction
0 4 bytes
3 16 bytes
7 32 bytes
Others Reserved
ULTRA_EN Enable of bus ultra signal
0 Disable
1 Enable
PROT_EN Enable of bus protect signal. Set this to 1 when the source is from camera. Set this to 0 when
the source is from memory
0 Disable
1 Enable
ROT_EN
Rotation angle. Only UYVY output format can be rotated.
0 No rotation
1 90 degree rotation with flip
INT_EN
Interrupt enable. When enabled, engine will assert FLAG0 as soon as finishing execution
of the descriptor. Not as the name implied, only this bit alone will not issue interrupt.
FLAG0_IRQ_EN must also enable for interrupt to take effect.
0 Disable
1 Enable
NOP No operation command
0 Command is no operation. DMA engine will drop incoming frame with the size set in
SRC_SIZE
1 Command is effective. DMA engine will process incoming frame.
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Performance guidelines:
1. Threshold set the maximum data bytes per transfer. The greater the threshold, the higher DRAM
utilization rate. Thus achieving better performance. The recommended value of threshold is 7
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27. General Purpose Inputs/Outputs
27.1.
General Description
MT2523G/D platform offers 48 general purpose I/O pins. By setting up the control registers, the MCU software can
control the direction, the output value, and read the input values on these pins. These GPIOs and GPOs are
multiplexed with other functions to reduce the pin count. To facilitate application use, the software can configure
which clock to send outside the chip. There are six clock-out ports embedded in 48 GPIO pins, and each clock-out
can be programmed to output appropriate clock source. Besides, when two GPIOs function for the same peripheral
IP, the smaller GPIO serial number has higher priority than the one of bigger number.
Figure 27-1. GPIO block diagram
27.2.
IO Pull Up/Down Control Truth Table
Table 27-1. GPIO v.s. IO type mapping
GPIO Name
IO Type
GPIO Name
IO Type
GPIO0
IO TYPE 4
GPIO25
IO TYPE 1
GPIO1
IO TYPE 4
GPIO26
IO TYPE 1
GPIO2
IO TYPE 4
GPIO27
IO TYPE 1
GPIO3
IO TYPE 4
GPIO28
IO TYPE 1
GPIO4
IO TYPE 1
GPIO29
IO TYPE 1
GPIO5
IO TYPE 1
GPIO30
IO TYPE 1
GPIO6
IO TYPE 1
GPIO31
IO TYPE 1
GPIO7
IO TYPE 1
GPIO32
IO TYPE 1
GPIO8
IO TYPE 1
GPIO33
IO TYPE 1
GPIO9
IO TYPE 1
GPIO34
IO TYPE 1
GPIO10
IO TYPE 4
GPIO35
IO TYPE 1
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GPIO Name
IO Type
GPIO Name
IO Type
GPIO11
IO TYPE 1
GPIO36
IO TYPE 1
GPIO12
IO TYPE 1
GPIO37
IO TYPE 1
GPIO13
IO TYPE 1
GPIO38
IO TYPE 1
GPIO14
IO TYPE 1
GPIO39
IO TYPE 1
GPIO15
IO TYPE 1
GPIO40
IO TYPE 1
GPIO16
IO TYPE 1
GPIO41
IO TYPE 1
GPIO17
IO TYPE 1
GPIO42
IO TYPE 1
GPIO18
IO TYPE 3
GPIO43
IO TYPE 1
GPIO19
IO TYPE 3
GPIO44
IO TYPE 1
GPIO20
IO TYPE 3
GPIO45
IO TYPE 1
GPIO21
IO TYPE 2
GPIO46
IO TYPE 1
GPIO22
IO TYPE 2
GPIO47
IO TYPE 1
GPIO23
IO TYPE 2
GPIO48
IO TYPE 1
GPIO24
IO TYPE 1
Refer to the truth table of pull-up/down control for the all GPIO pins excludingGPIO_0, GPIO_1, GPIO_2, GPIO_3,
and GPIO_10.
Table 27-2. IO type 1 - pull up/down control
GPIO_DIR
GPIO_PUPD
GPIO_R1
GPIO_R0
Resistance Value
0
0
0
0
High-Z
0
0
0
1
Pull-Up, 47K
0
0
1
0
Pull-Up, 47K
0
0
1
1
Pull-Up, 23.5K
0
1
0
0
High-Z
0
1
0
1
Pull-Down, 47K
0
1
1
0
Pull-Down, 47K
0
1
1
1
Pull-Down, 23.5K
1
X
X
X
High-Z
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Table 27-3. IO type 2 - pull up/down control
GPIO_DIR
GPIO_PUPD
GPIO_R1
GPIO_R0
Resistance Value
0
0
0
0
High-Z
0
0
0
1
Pull-up, 75K
0
0
1
0
Pull-up, 200K
0
0
1
1
Pull-up, 75K parallel
200K
0
1
0
0
High-Z
0
1
0
1
Pull-down, 75K
0
1
1
0
Pull-down, 200K
0
1
1
1
Pull-down, 75K
parallel 200K
1
X
X
X
High-Z
Table 27-4. IO type 3 - pull up/down control
GPIO_DIR
GPIO_PUPD
GPIO_R1
GPIO_R0
Resistance Value
0
0
0
0
High-Z
0
0
0
1
Pull-up, 75K
0
0
1
0
Pull-up, 2K
0
0
1
1
Pull-up, 75K parallel
2K
0
1
0
0
High-Z
0
1
0
1
Pull-down, 75K
0
1
1
0
Pull-down, 2K
0
1
1
1
Pull-down, 75K
parallel 2K
1
X
X
X
High-Z
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Table 27-5. IO type 4 - pull up/down control
27.3.
GPIO_DIR
GPIO_PULLEN
GPIO_PULLSEL
Resistance Value
0
1
1
Pull-up, 75K
0
0
0
High-Z
0
1
0
Pull-down, 75K
1
X
X
High-Z
Register Definition
Module name: gpio_reg Base address: (+A2020000h)
Address
Name
Width
Register Function
A2020000
GPIO_DIR0
32
A2020004
GPIO_DIR0_SE
T
32
A2020008
GPIO_DIR0_CL
R
32
GPIO Direction Control
For bitwise access of GPIO_DIR0
A2020010
GPIO_DIR1
32
GPIO Direction Control
Configures GPIO direction
A2020014
GPIO_DIR1_SE
T
32
GPIO Direction Control
For bitwise access of GPIO_DIR1
A2020018
GPIO_DIR1_CL
R
32
GPIO Direction Control
For bitwise access of GPIO_DIR1
A2020100
GPIO_PULLEN0
32
A2020104
GPIO_PULLEN0
_SET
32
A2020108
GPIO_PULLEN0
_CLR
32
GPIO Pull-up/down Enable Control
For bitwise access of GPIO_PULLEN0
A2020200
GPIO_DINV0
32
GPIO Data Inversion Control
Configures GPIO inversion enabling
A2020204
GPIO_DINV0_S
ET
32
GPIO Data Inversion Control
For bitwise access of GPIO_DINV0
A2020208
GPIO_DINV0_C
LR
32
GPIO Data Inversion Control
For bitwise access of GPIO_DINV0
A2020210
GPIO_DINV1
32
A2020214
GPIO_DINV1_S
ET
32
A2020218
GPIO_DINV1_C
LR
32
GPIO Data Inversion Control
For bitwise access of GPIO_DINV1
A2020300
GPIO_DOUT0
32
GPIO Output Data Control
Configures GPIO output value
A2020304
GPIO_DOUT0_S
ET
32
GPIO Output Data Control
For bitwise access of GPIO_DIR0
GPIO Direction Control
Configures GPIO direction
GPIO Direction Control
For bitwise access of GPIO_DIR0
GPIO Pull-up/down Enable Control
Configures GPIO pull enabling
GPIO Pull-up/down Enable Control
For bitwise access of GPIO_PULLEN0
GPIO Data Inversion Control
Configures GPIO inversion enabling
GPIO Data Inversion Control
For bitwise access of GPIO_DINV1
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GPIO Output Data Control
For bitwise access of GPIO_DIR0
GPIO Output Data Control
Configures GPIO output value
A2020308
GPIO_DOUT0_
CLR
32
A2020310
GPIO_DOUT1
32
A2020314
GPIO_DOUT1_S
ET
32
GPIO Output Data Control
For bitwise access of GPIO_DIR1
A2020318
GPIO_DOUT1_C
LR
32
GPIO Output Data Control
For bitwise access of GPIO_DIR1
A2020400
GPIO_DIN0
32
GPIO Input Data Value
Reads GPIO input value
A2020410
GPIO_DIN1
32
GPIO Input Data Value
Reads GPIO input value
A2020500
GPIO_PULLSEL
0
32
A2020504
GPIO_PULLSEL
0_SET
32
A2020508
GPIO_PULLSEL
0_CLR
32
GPIO Pullsel Control
For bitwise access of GPIO_PULLSEL0
A2020600
GPIO_SMT0
32
GPIO SMT Control
Configures GPIO Schmitt trigger control
A2020604
GPIO_SMT0_SE
T
32
GPIO SMT Control
For bitwise access of GPIO_SMT0
A2020608
GPIO_SMT0_CL
R
32
GPIO SMT Control
For bitwise access of GPIO_SMT0
A2020610
GPIO_SMT1
32
A2020614
GPIO_SMT1_SE
T
32
A2020618
GPIO_SMT1_CL
R
32
GPIO SMT Control
For bitwise access of GPIO_SMT1
A2020700
GPIO_SR0
32
GPIO SR Control
Configures GPIO slew rate control
A2020704
GPIO_SR0_SET
32
GPIO SR Control
For bitwise access of GPIO_SR0
A2020708
GPIO_SR0_CLR
32
GPIO SR Control
For bitwise access of GPIO_SR0
A2020710
GPIO_SR1
32
A2020714
GPIO_SR1_SET
32
A2020718
GPIO_SR1_CLR
32
GPIO SR Control
For bitwise access of GPIO_SR1
A2020800
GPIO_DRV0
32
GPIO DRV Control
Configures GPIO driving control
A2020804
GPIO_DRV0_SE
T
32
GPIO DRV Control
For bitwise access of GPIO_DRV0
A2020808
GPIO_DRV0_CL
R
32
GPIO DRV Control
For bitwise access of GPIO_DRV0
A2020810
GPIO_DRV1
32
A2020814
GPIO_DRV1_SE
T
32
A2020818
GPIO_DRV1_CL
R
32
GPIO Pullsel Control
Configures GPIO PUPD selection
GPIO Pullsel Control
For bitwise access of GPIO_PULLSEL0
GPIO SMT Control
Configures GPIO Schmitt trigger control
GPIO SMT Control
For bitwise access of GPIO_SMT1
GPIO SR Control
Configures GPIO slew rate control
GPIO SR Control
For bitwise access of GPIO_SR1
GPIO DRV Control
Configures GPIO driving control
GPIO DRV Control
For bitwise access of GPIO_DRV1
GPIO DRV Control
For bitwise access of GPIO_DRV1
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GPIO DRV Control
Configures GPIO driving control
GPIO DRV Control
For bitwise access of GPIO_DRV2
A2020820
GPIO_DRV2
32
A2020824
GPIO_DRV2_SE
T
32
A2020828
GPIO_DRV2_CL
R
32
GPIO DRV Control
For bitwise access of GPIO_DRV2
A2020830
GPIO_DRV3
32
GPIO DRV Control
Configures GPIO driving control
A2020834
GPIO_DRV3_SE
T
32
GPIO DRV Control
For bitwise access of GPIO_DRV3
A2020838
GPIO_DRV3_CL
R
32
GPIO DRV Control
For bitwise access of GPIO_DRV3
A2020900
GPIO_IES0
32
A2020904
GPIO_IES0_SE
T
32
A2020908
GPIO_IES0_CL
R
32
GPIO IES Control
For bitwise access of GPIO_IES0
A2020910
GPIO_IES1
32
GPIO IES Control
Configures GPIO input enabling control
A2020914
GPIO_IES1_SET
32
GPIO IES Control
For bitwise access of GPIO_IES1
A2020918
GPIO_IES1_CLR
32
GPIO IES Control
For bitwise access of GPIO_IES1
A2020A00
GPIO_PUPD0
32
A2020A04
GPIO_PUPD0_S
ET
32
A2020A08
GPIO_PUPD0_C
LR
32
GPIO PUPD Control
For bitwise access of GPIO_PUPD0
A2020A10
GPIO_PUPD1
32
GPIO PUPD Control
Configures GPIO PUPD control
A2020A14
GPIO_PUPD1_S
ET
32
GPIO PUPD Control
For bitwise access of GPIO_PUPD1
A2020A18
GPIO_PUPD1_C
LR
32
GPIO PUPD Control
For bitwise access of GPIO_PUPD1
A2020B00
GPIO_RESEN0_
0
32
A2020B04
GPIO_RESEN0_
0_SET
32
A2020B08
GPIO_RESEN0_
0_CLR
32
GPIO R0 Control
For bitwise access of GPIO_RESEN0_0
A2020B10
GPIO_RESEN0_
1
32
GPIO R0 Control
Configures GPIO R0 control
A2020B14
GPIO_RESEN0_
1_SET
32
GPIO R0 Control
For bitwise access of GPIO_RESEN0_1
A2020B18
GPIO_RESEN0_
1_CLR
32
GPIO R0 Control
For bitwise access of GPIO_RESEN0_1
A2020B20
GPIO_RESEN1_
0
32
A2020B24
GPIO_RESEN1_
0_SET
32
A2020B28
GPIO_RESEN1_
0_CLR
32
GPIO IES Control
Configures GPIO input enabling control
GPIO IES Control
For bitwise access of GPIO_IES0
GPIO PUPD Control
Configures GPIO PUPD control
GPIO PUPD Control
For bitwise access of GPIO_PUPD0
GPIO R0 Control
Configures GPIO R0 control
GPIO R0 Control
For bitwise access of GPIO_RESEN0_0
GPIO R1 Control
Configures GPIO R1 control
GPIO R1 Control
For bitwise access of GPIO_RESEN1_0
GPIO R1 Control
For bitwise access of GPIO_RESEN1_0
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GPIO R1 Control
Configures GPIO R1 control
GPIO R1 Control
For bitwise access of GPIO_RESEN1_1
A2020B30
GPIO_RESEN1_
1
32
A2020B34
GPIO_RESEN1_
1_SET
32
A2020B38
GPIO_RESEN1_
1_CLR
32
GPIO R1 Control
For bitwise access of GPIO_RESEN1_1
A2020C00
GPIO_MODE0
32
GPIO Mode Control
Configures GPIO aux. mode
A2020C04
GPIO_MODE0_
SET
32
GPIO Mode Control
For bitwise access of GPIO_MODE0
A2020C08
GPIO_MODE0_
CLR
32
GPIO Mode Control
For bitwise access of GPIO_MODE0
A2020C10
GPIO_MODE1
32
A2020C14
GPIO_MODE1_S
ET
32
A2020C18
GPIO_MODE1_
CLR
32
GPIO Mode Control
For bitwise access of GPIO_MODE1
A2020C20
GPIO_MODE2
32
GPIO Mode Control
Configures GPIO aux. mode
A2020C24
GPIO_MODE2_
SET
32
GPIO Mode Control
For bitwise access of GPIO_MODE2
A2020C28
GPIO_MODE2_
CLR
32
GPIO Mode Control
For bitwise access of GPIO_MODE2
A2020C30
GPIO_MODE3
32
A2020C34
GPIO_MODE3_
SET
32
A2020C38
GPIO_MODE3_
CLR
32
GPIO Mode Control
For bitwise access of GPIO_MODE3
A2020C40
GPIO_MODE4
32
GPIO Mode Control
Configures GPIO aux. mode
A2020C44
GPIO_MODE4_
SET
32
GPIO Mode Control
For bitwise access of GPIO_MODE4
A2020C48
GPIO_MODE4_
CLR
32
GPIO Mode Control
For bitwise access of GPIO_MODE4
A2020C50
GPIO_MODE5
32
A2020C54
GPIO_MODE5_
SET
32
A2020C58
GPIO_MODE5_
CLR
32
GPIO Mode Control
For bitwise access of GPIO_MODE5
A2020C60
GPIO_MODE6
32
GPIO Mode Control
Configures GPIO aux. mode
A2020C64
GPIO_MODE6_
SET
32
GPIO Mode Control
For bitwise access of GPIO_MODE6
A2020C68
GPIO_MODE6_
CLR
32
GPIO Mode Control
For bitwise access of GPIO_MODE6
A2020D00
GPIO_TDSEL0
32
A2020D04
GPIO_TDSEL0_
SET
32
A2020D08
GPIO_TDSEL0_
CLR
32
GPIO Mode Control
Configures GPIO aux. mode
GPIO Mode Control
For bitwise access of GPIO_MODE1
GPIO Mode Control
Configures GPIO aux. mode
GPIO Mode Control
For bitwise access of GPIO_MODE3
GPIO Mode Control
Configures GPIO aux. mode
GPIO Mode Control
For bitwise access of GPIO_MODE5
GPIO TDSEL Control
GPIO TX duty control register
GPIO TDSEL Control
For bitwise access of GPIO_TDSEL
GPIO TDSEL Control
For bitwise access of GPIO_TDSEL
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
GPIO TDSEL Control
GPIO TX duty control register
GPIO TDSEL Control
For bitwise access of GPIO_TDSEL
A2020D10
GPIO_TDSEL1
32
A2020D14
GPIO_TDSEL1_
SET
32
A2020D18
GPIO_TDSEL1_
CLR
32
GPIO TDSEL Control
For bitwise access of GPIO_TDSEL
A2020D20
GPIO_TDSEL2
32
GPIO TDSEL Control
GPIO TX duty control register
A2020D24
GPIO_TDSEL2_
SET
32
GPIO TDSEL Control
For bitwise access of GPIO_TDSEL
A2020D28
GPIO_TDSEL2_
CLR
32
GPIO TDSEL Control
For bitwise access of GPIO_TDSEL
A2020D30
GPIO_TDSEL3
32
A2020D34
GPIO_TDSEL3_
SET
32
A2020D38
GPIO_TDSEL3_
CLR
32
GPIO TDSEL Control
For bitwise access of GPIO_TDSEL
A2020E00
CLK_OUT0
32
CLK Out Selection Control
CLK OUT0 Setting
A2020E10
CLK_OUT1
32
CLK Out Selection Control
CLK OUT1 Setting
A2020E20
CLK_OUT2
32
CLK Out Selection Control
CLK OUT2 Setting
A2020E30
CLK_OUT3
32
A2020E40
CLK_OUT4
32
A2020E50
CLK_OUT5
32
A2020000 GPIO_DIR0
Bit
Mne
Type
Reset
Bit
Mne
Type
Reset
GPIO TDSEL Control
GPIO TX duty control register
GPIO TDSEL Control
For bitwise access of GPIO_TDSEL
CLK Out Selection Control
CLK OUT3 Setting
CLK Out Selection Control
CLK OUT4 Setting
CLK Out Selection Control
CLK OUT5 Setting
GPIO Direction Control
02020000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
GPIO
GPIO1
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Configures GPIO direction
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_DIR
GPIO31 direction control
0: GPIO as input
1: GPIO as output
30
GPIO30
GPIO30_DIR
GPIO30 direction control
0: GPIO as input
1: GPIO as output
29
GPIO29
GPIO29_DIR
GPIO29 direction control
0: GPIO as input
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: GPIO as output
28
GPIO28
GPIO28_DIR
GPIO28 direction control
0: GPIO as input
1: GPIO as output
27
GPIO27
GPIO27_DIR
GPIO27 direction control
0: GPIO as input
1: GPIO as output
26
GPIO26
GPIO26_DIR
GPIO26 direction control
0: GPIO as input
1: GPIO as output
25
GPIO25
GPIO25_DIR
GPIO25 direction control
0: GPIO as input
1: GPIO as output
24
GPIO24
GPIO24_DIR
GPIO24 direction control
0: GPIO as input
1: GPIO as output
23
GPIO23
GPIO23_DIR
GPIO23 direction control
0: GPIO as input
1: GPIO as output
22
GPIO22
GPIO22_DIR
GPIO22 direction control
0: GPIO as input
1: GPIO as output
21
GPIO21
GPIO21_DIR
GPIO21 direction control
0: GPIO as input
1: GPIO as output
20
GPIO20
GPIO20_DIR
GPIO20 direction control
0: GPIO as input
1: GPIO as output
19
GPIO19
GPIO19_DIR
GPIO19 direction control
0: GPIO as input
1: GPIO as output
18
GPIO18
GPIO18_DIR
GPIO18 direction control
0: GPIO as input
1: GPIO as output
17
GPIO17
GPIO17_DIR
GPIO17 direction control
0: GPIO as input
1: GPIO as output
16
GPIO16
GPIO16_DIR
GPIO16 direction control
0: GPIO as input
1: GPIO as output
15
GPIO15
GPIO15_DIR
GPIO15 direction control
0: GPIO as input
1: GPIO as output
14
GPIO14
GPIO14_DIR
GPIO14 direction control
0: GPIO as input
1: GPIO as output
13
GPIO13
GPIO13_DIR
GPIO13 direction control
0: GPIO as input
1: GPIO as output
12
GPIO12
GPIO12_DIR
GPIO12 direction control
0: GPIO as input
1: GPIO as output
11
GPIO11
GPIO11_DIR
GPIO11 direction control
0: GPIO as input
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: GPIO as output
10
GPIO10
GPIO10_DIR
GPIO10 direction control
0: GPIO as input
1: GPIO as output
9
GPIO9
GPIO9_DIR
GPIO9 direction control
0: GPIO as input
1: GPIO as output
8
GPIO8
GPIO8_DIR
GPIO8 direction control
0: GPIO as input
1: GPIO as output
7
GPIO7
GPIO7_DIR
GPIO7 direction control
0: GPIO as input
1: GPIO as output
6
GPIO6
GPIO6_DIR
GPIO6 direction control
0: GPIO as input
1: GPIO as output
5
GPIO5
GPIO5_DIR
GPIO5 direction control
0: GPIO as input
1: GPIO as output
4
GPIO4
GPIO4_DIR
GPIO4 direction control
0: GPIO as input
1: GPIO as output
3
GPIO3
GPIO3_DIR
GPIO3 direction control
0: GPIO as input
1: GPIO as output
2
GPIO2
GPIO2_DIR
GPIO2 direction control
0: GPIO as input
1: GPIO as output
1
GPIO1
GPIO1_DIR
GPIO1 direction control
0: GPIO as input
1: GPIO as output
0
GPIO0
GPIO0_DIR
GPIO0 direction control
0: GPIO as input
1: GPIO as output
A2020004
Bit
Mne
Type
Reset
Bit
Mne
Type
Reset
GPIO_DIR0_S
GPIO Direction Control
ET
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
GPIO
GPIO1
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DIR0
Bit(s) Mnemonic Name
31
00000000
GPIO31
GPIO31_DIR
Description
Bitwise SET operation of GPIO31 direction
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
30
GPIO30
GPIO30_DIR
Bitwise SET operation of GPIO30 direction
0: Keep
1: SET bits
29
GPIO29
GPIO29_DIR
Bitwise SET operation of GPIO29 direction
0: Keep
1: SET bits
28
GPIO28
GPIO28_DIR
Bitwise SET operation of GPIO28 direction
0: Keep
1: SET bits
27
GPIO27
GPIO27_DIR
Bitwise SET operation of GPIO27 direction
0: Keep
1: SET bits
26
GPIO26
GPIO26_DIR
Bitwise SET operation of GPIO26 direction
0: Keep
1: SET bits
25
GPIO25
GPIO25_DIR
Bitwise SET operation of GPIO25 direction
0: Keep
1: SET bits
24
GPIO24
GPIO24_DIR
Bitwise SET operation of GPIO24 direction
0: Keep
1: SET bits
23
GPIO23
GPIO23_DIR
Bitwise SET operation of GPIO23 direction
0: Keep
1: SET bits
22
GPIO22
GPIO22_DIR
Bitwise SET operation of GPIO22 direction
0: Keep
1: SET bits
21
GPIO21
GPIO21_DIR
Bitwise SET operation of GPIO21 direction
0: Keep
1: SET bits
20
GPIO20
GPIO20_DIR
Bitwise SET operation of GPIO20 direction
0: Keep
1: SET bits
19
GPIO19
GPIO19_DIR
Bitwise SET operation of GPIO19 direction
0: Keep
1: SET bits
18
GPIO18
GPIO18_DIR
Bitwise SET operation of GPIO18 direction
0: Keep
1: SET bits
17
GPIO17
GPIO17_DIR
Bitwise SET operation of GPIO17 direction
0: Keep
1: SET bits
16
GPIO16
GPIO16_DIR
Bitwise SET operation of GPIO16 direction
0: Keep
1: SET bits
15
GPIO15
GPIO15_DIR
Bitwise SET operation of GPIO15 direction
0: Keep
1: SET bits
14
GPIO14
GPIO14_DIR
Bitwise SET operation of GPIO14 direction
0: Keep
1: SET bits
13
GPIO13
GPIO13_DIR
Bitwise SET operation of GPIO13 direction
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
12
GPIO12
GPIO12_DIR
Bitwise SET operation of GPIO12 direction
0: Keep
1: SET bits
11
GPIO11
GPIO11_DIR
Bitwise SET operation of GPIO11 direction
0: Keep
1: SET bits
10
GPIO10
GPIO10_DIR
Bitwise SET operation of GPIO10 direction
0: Keep
1: SET bits
9
GPIO9
GPIO9_DIR
Bitwise SET operation of GPIO9 direction
0: Keep
1: SET bits
8
GPIO8
GPIO8_DIR
Bitwise SET operation of GPIO8 direction
0: Keep
1: SET bits
7
GPIO7
GPIO7_DIR
Bitwise SET operation of GPIO7 direction
0: Keep
1: SET bits
6
GPIO6
GPIO6_DIR
Bitwise SET operation of GPIO6 direction
0: Keep
1: SET bits
5
GPIO5
GPIO5_DIR
Bitwise SET operation of GPIO5 direction
0: Keep
1: SET bits
4
GPIO4
GPIO4_DIR
Bitwise SET operation of GPIO4 direction
0: Keep
1: SET bits
3
GPIO3
GPIO3_DIR
Bitwise SET operation of GPIO3 direction
0: Keep
1: SET bits
2
GPIO2
GPIO2_DIR
Bitwise SET operation of GPIO2 direction
0: Keep
1: SET bits
1
GPIO1
GPIO1_DIR
Bitwise SET operation of GPIO1 direction
0: Keep
1: SET bits
0
GPIO0
GPIO0_DIR
Bitwise SET operation of GPIO0 direction
0: Keep
1: SET bits
A2020008
Bit
Mne
Type
Reset
Bit
Mne
Type
Reset
GPIO_DIR0_C
GPIO Direction Control
LR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
GPIO
GPIO1
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DIR0
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_DIR
Bitwise CLR operation of GPIO31 direction
0: Keep
1: CLR bits
30
GPIO30
GPIO30_DIR
Bitwise CLR operation of GPIO30 direction
0: Keep
1: CLR bits
29
GPIO29
GPIO29_DIR
Bitwise CLR operation of GPIO29 direction
0: Keep
1: CLR bits
28
GPIO28
GPIO28_DIR
Bitwise CLR operation of GPIO28 direction
0: Keep
1: CLR bits
27
GPIO27
GPIO27_DIR
Bitwise CLR operation of GPIO27 direction
0: Keep
1: CLR bits
26
GPIO26
GPIO26_DIR
Bitwise CLR operation of GPIO26 direction
0: Keep
1: CLR bits
25
GPIO25
GPIO25_DIR
Bitwise CLR operation of GPIO25 direction
0: Keep
1: CLR bits
24
GPIO24
GPIO24_DIR
Bitwise CLR operation of GPIO24 direction
0: Keep
1: CLR bits
23
GPIO23
GPIO23_DIR
Bitwise CLR operation of GPIO23 direction
0: Keep
1: CLR bits
22
GPIO22
GPIO22_DIR
Bitwise CLR operation of GPIO22 direction
0: Keep
1: CLR bits
21
GPIO21
GPIO21_DIR
Bitwise CLR operation of GPIO21 direction
0: Keep
1: CLR bits
20
GPIO20
GPIO20_DIR
Bitwise CLR operation of GPIO20 direction
0: Keep
1: CLR bits
19
GPIO19
GPIO19_DIR
Bitwise CLR operation of GPIO19 direction
0: Keep
1: CLR bits
18
GPIO18
GPIO18_DIR
Bitwise CLR operation of GPIO18 direction
0: Keep
1: CLR bits
17
GPIO17
GPIO17_DIR
Bitwise CLR operation of GPIO17 direction
0: Keep
1: CLR bits
16
GPIO16
GPIO16_DIR
Bitwise CLR operation of GPIO16 direction
0: Keep
1: CLR bits
15
GPIO15
GPIO15_DIR
Bitwise CLR operation of GPIO15 direction
0: Keep
1: CLR bits
14
GPIO14
GPIO14_DIR
Bitwise CLR operation of GPIO14 direction
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
13
GPIO13
GPIO13_DIR
Bitwise CLR operation of GPIO13 direction
0: Keep
1: CLR bits
12
GPIO12
GPIO12_DIR
Bitwise CLR operation of GPIO12 direction
0: Keep
1: CLR bits
11
GPIO11
GPIO11_DIR
Bitwise CLR operation of GPIO11 direction
0: Keep
1: CLR bits
10
GPIO10
GPIO10_DIR
Bitwise CLR operation of GPIO10 direction
0: Keep
1: CLR bits
9
GPIO9
GPIO9_DIR
Bitwise CLR operation of GPIO9 direction
0: Keep
1: CLR bits
8
GPIO8
GPIO8_DIR
Bitwise CLR operation of GPIO8 direction
0: Keep
1: CLR bits
7
GPIO7
GPIO7_DIR
Bitwise CLR operation of GPIO7 direction
0: Keep
1: CLR bits
6
GPIO6
GPIO6_DIR
Bitwise CLR operation of GPIO6 direction
0: Keep
1: CLR bits
5
GPIO5
GPIO5_DIR
Bitwise CLR operation of GPIO5 direction
0: Keep
1: CLR bits
4
GPIO4
GPIO4_DIR
Bitwise CLR operation of GPIO4 direction
0: Keep
1: CLR bits
3
GPIO3
GPIO3_DIR
Bitwise CLR operation of GPIO3 direction
0: Keep
1: CLR bits
2
GPIO2
GPIO2_DIR
Bitwise CLR operation of GPIO2 direction
0: Keep
1: CLR bits
1
GPIO1
GPIO1_DIR
Bitwise CLR operation of GPIO1 direction
0: Keep
1: CLR bits
0
GPIO0
GPIO0_DIR
Bitwise CLR operation of GPIO0 direction
0: Keep
1: CLR bits
A2020010
Bit
GPIO_DIR1
GPIO Direction Control
00180088
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
RW
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Reset
0
Overview
0
0
0
0
0
0
0
1
0
0
0
1
0
0
0
Configures GPIO direction
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_DIR
GPIO48 direction control
0: GPIO as input
1: GPIO as output
15
GPIO47
GPIO47_DIR
GPIO47 direction control
0: GPIO as input
1: GPIO as output
14
GPIO46
GPIO46_DIR
GPIO46 direction control
0: GPIO as input
1: GPIO as output
13
GPIO45
GPIO45_DIR
GPIO45 direction control
0: GPIO as input
1: GPIO as output
12
GPIO44
GPIO44_DIR
GPIO44 direction control
0: GPIO as input
1: GPIO as output
11
GPIO43
GPIO43_DIR
GPIO43 direction control
0: GPIO as input
1: GPIO as output
10
GPIO42
GPIO42_DIR
GPIO42 direction control
0: GPIO as input
1: GPIO as output
9
GPIO41
GPIO41_DIR
GPIO41 direction control
0: GPIO as input
1: GPIO as output
8
GPIO40
GPIO40_DIR
GPIO40 direction control
0: GPIO as input
1: GPIO as output
7
GPIO39
GPIO39_DIR
GPIO39 direction control
0: GPIO as input
1: GPIO as output
6
GPIO38
GPIO38_DIR
GPIO38 direction control
0: GPIO as input
1: GPIO as output
5
GPIO37
GPIO37_DIR
GPIO37 direction control
0: GPIO as input
1: GPIO as output
4
GPIO36
GPIO36_DIR
GPIO36 direction control
0: GPIO as input
1: GPIO as output
3
GPIO35
GPIO35_DIR
GPIO35 direction control
0: GPIO as input
1: GPIO as output
2
GPIO34
GPIO34_DIR
GPIO34 direction control
0: GPIO as input
1: GPIO as output
1
GPIO33
GPIO33_DIR
GPIO33 direction control
0: GPIO as input
1: GPIO as output
0
GPIO32
GPIO32_DIR
GPIO32 direction control
0: GPIO as input
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A2020014
Bit
Description
1: GPIO as output
GPIO_DIR1_S
GPIO Direction Control
ET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DIR1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_DIR
Bitwise SET operation of GPIO48 direction
0: Keep
1: SET bits
15
GPIO47
GPIO47_DIR
Bitwise SET operation of GPIO47 direction
0: Keep
1: SET bits
14
GPIO46
GPIO46_DIR
Bitwise SET operation of GPIO46 direction
0: Keep
1: SET bits
13
GPIO45
GPIO45_DIR
Bitwise SET operation of GPIO45 direction
0: Keep
1: SET bits
12
GPIO44
GPIO44_DIR
Bitwise SET operation of GPIO44 direction
0: Keep
1: SET bits
11
GPIO43
GPIO43_DIR
Bitwise SET operation of GPIO43 direction
0: Keep
1: SET bits
10
GPIO42
GPIO42_DIR
Bitwise SET operation of GPIO42 direction
0: Keep
1: SET bits
9
GPIO41
GPIO41_DIR
Bitwise SET operation of GPIO41 direction
0: Keep
1: SET bits
8
GPIO40
GPIO40_DIR
Bitwise SET operation of GPIO40 direction
0: Keep
1: SET bits
7
GPIO39
GPIO39_DIR
Bitwise SET operation of GPIO39 direction
0: Keep
1: SET bits
6
GPIO38
GPIO38_DIR
Bitwise SET operation of GPIO38 direction
0: Keep
1: SET bits
5
GPIO37
GPIO37_DIR
Bitwise SET operation of GPIO37 direction
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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This document contains information that is proprietary to Airoha Technology Corp. (“Airoha”) and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
4
GPIO36
GPIO36_DIR
Bitwise SET operation of GPIO36 direction
0: Keep
1: SET bits
3
GPIO35
GPIO35_DIR
Bitwise SET operation of GPIO35 direction
0: Keep
1: SET bits
2
GPIO34
GPIO34_DIR
Bitwise SET operation of GPIO34 direction
0: Keep
1: SET bits
1
GPIO33
GPIO33_DIR
Bitwise SET operation of GPIO33 direction
0: Keep
1: SET bits
0
GPIO32
GPIO32_DIR
Bitwise SET operation of GPIO32 direction
0: Keep
1: SET bits
A2020018
Bit
GPIO_DIR1_C
GPIO Direction Control
LR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DIR1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_DIR
Bitwise CLR operation of GPIO48 direction
0: Keep
1: CLR bits
15
GPIO47
GPIO47_DIR
Bitwise CLR operation of GPIO47 direction
0: Keep
1: CLR bits
14
GPIO46
GPIO46_DIR
Bitwise CLR operation of GPIO46 direction
0: Keep
1: CLR bits
13
GPIO45
GPIO45_DIR
Bitwise CLR operation of GPIO45 direction
0: Keep
1: CLR bits
12
GPIO44
GPIO44_DIR
Bitwise CLR operation of GPIO44 direction
0: Keep
1: CLR bits
11
GPIO43
GPIO43_DIR
Bitwise CLR operation of GPIO43 direction
0: Keep
1: CLR bits
10
GPIO42
GPIO42_DIR
Bitwise CLR operation of GPIO42 direction
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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This document contains information that is proprietary to Airoha Technology Corp. (“Airoha”) and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
9
GPIO41
GPIO41_DIR
Bitwise CLR operation of GPIO41 direction
0: Keep
1: CLR bits
8
GPIO40
GPIO40_DIR
Bitwise CLR operation of GPIO40 direction
0: Keep
1: CLR bits
7
GPIO39
GPIO39_DIR
Bitwise CLR operation of GPIO39 direction
0: Keep
1: CLR bits
6
GPIO38
GPIO38_DIR
Bitwise CLR operation of GPIO38 direction
0: Keep
1: CLR bits
5
GPIO37
GPIO37_DIR
Bitwise CLR operation of GPIO37 direction
0: Keep
1: CLR bits
4
GPIO36
GPIO36_DIR
Bitwise CLR operation of GPIO36 direction
0: Keep
1: CLR bits
3
GPIO35
GPIO35_DIR
Bitwise CLR operation of GPIO35 direction
0: Keep
1: CLR bits
2
GPIO34
GPIO34_DIR
Bitwise CLR operation of GPIO34 direction
0: Keep
1: CLR bits
1
GPIO33
GPIO33_DIR
Bitwise CLR operation of GPIO33 direction
0: Keep
1: CLR bits
0
GPIO32
GPIO32_DIR
Bitwise CLR operation of GPIO32 direction
0: Keep
1: CLR bits
A2020100
Bit
Name
Type
Reset
Bit
GPIO_PULLEN
GPIO Pull-up/down Enable Control
0
31
30
29
28
27
15
14
13
12
11
Name
Type
Reset
Overview
0000040F
26
25
24
23
22
21
20
10
9
8
7
6
5
4
GPIO1
0
RW
1
19
18
17
16
3
2
1
0
GPIO GPIO
GPIO
GPIO1
3
2
0
RW
RW
RW
RW
1
1
1
1
Configures GPIO pull enabling
Bit(s) Mnemonic Name
Description
10
GPIO10
GPIO10_PULLEN
GPIO10 PULLEN
0: Disable
1: Enable
3
GPIO3
GPIO3_PULLEN
GPIO3 PULLEN
0: Disable
1: Enable
2
GPIO2
GPIO2_PULLEN
GPIO2 PULLEN
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Disable
1: Enable
1
GPIO1
GPIO1_PULLEN
GPIO1 PULLEN
0: Disable
1: Enable
0
GPIO0
GPIO0_PULLEN
GPIO0 PULLEN
0: Disable
1: Enable
A2020104
Bit
Name
Type
Reset
Bit
GPIO_PULLEN
GPIO Pull-up/down Enable Control
0_SET
31
30
29
28
27
15
14
13
12
11
Name
Type
Reset
Overview
00000000
26
25
24
23
22
21
20
10
9
8
7
6
5
4
GPIO1
0
WO
0
19
18
17
16
3
2
1
0
GPIO GPIO
GPIO
GPIO1
3
2
0
WO
WO
WO
WO
0
0
0
0
For bitwise access of GPIO_PULLEN0
Bit(s) Mnemonic Name
Description
10
GPIO10
GPIO10_PULLEN
Bitwise SET operation of GPIO10 PULLEN_SET
0: Keep
1: SET bits
3
GPIO3
GPIO3_PULLEN
Bitwise SET operation of GPIO3 PULLEN_SET
0: Keep
1: SET bits
2
GPIO2
GPIO2_PULLEN
Bitwise SET operation of GPIO2 PULLEN_SET
0: Keep
1: SET bits
1
GPIO1
GPIO1_PULLEN
Bitwise SET operation of GPIO1 PULLEN_SET
0: Keep
1: SET bits
0
GPIO0
GPIO0_PULLEN
Bitwise SET operation of GPIO0 PULLEN_SET
0: Keep
1: SET bits
A2020108
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_PULLEN
GPIO Pull-up/down Enable Control
0_CLR
31
30
29
28
27
15
14
13
12
11
00000000
26
25
24
23
22
21
20
10
9
8
7
6
5
4
GPIO1
0
WO
0
19
18
17
16
3
2
1
0
GPIO GPIO
GPIO
GPIO1
3
2
0
WO
WO
WO
WO
0
0
0
0
For bitwise access of GPIO_PULLEN0
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
10
GPIO10
GPIO10_PULLEN
Bitwise CLR operation of GPIO10 PULLEN_CLR
0: Keep
1: CLR bits
3
GPIO3
GPIO3_PULLEN
Bitwise CLR operation of GPIO3 PULLEN_CLR
0: Keep
1: CLR bits
2
GPIO2
GPIO2_PULLEN
Bitwise CLR operation of GPIO2 PULLEN_CLR
0: Keep
1: CLR bits
1
GPIO1
GPIO1_PULLEN
Bitwise CLR operation of GPIO1 PULLEN_CLR
0: Keep
1: CLR bits
0
GPIO0
GPIO0_PULLEN
Bitwise CLR operation of GPIO0 PULLEN_CLR
0: Keep
1: CLR bits
A2020200
Bit
GPIO_DINV0
31
30
29
GPIO Data Inversion Control
28
27
26
25
24
23
22
00000000
21
20
19
18
17
16
INV3 INV2 INV2
INV2
INV2 INV2 INV2
INV2
Name INV31 0
INV27
INV25
INV21
INV19 INV18 INV17 INV16
9
8
6
4
3
2
0
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name INV15 INV14 INV13 INV12 INV11 INV10 INV9 INV8 INV7 INV6 INV5 INV4 INV3 INV2 INV1 INV0
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Configures GPIO inversion enabling
Bit(s) Mnemonic Name
Description
31
INV31
GPIO31_DINV
GPIO31 inversion control
0: Keep input value
1: Invert input value
30
INV30
GPIO30_DINV
GPIO30 inversion control
0: Keep input value
1: Invert input value
29
INV29
GPIO29_DINV
GPIO29 inversion control
0: Keep input value
1: Invert input value
28
INV28
GPIO28_DINV
GPIO28 inversion control
0: Keep input value
1: Invert input value
27
INV27
GPIO27_DINV
GPIO27 inversion control
0: Keep input value
1: Invert input value
26
INV26
GPIO26_DINV
GPIO26 inversion control
0: Keep input value
1: Invert input value
25
INV25
GPIO25_DINV
GPIO25 inversion control
0: Keep input value
1: Invert input value
24
INV24
GPIO24_DINV
GPIO24 inversion control
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep input value
1: Invert input value
23
INV23
GPIO23_DINV
GPIO23 inversion control
0: Keep input value
1: Invert input value
22
INV22
GPIO22_DINV
GPIO22 inversion control
0: Keep input value
1: Invert input value
21
INV21
GPIO21_DINV
GPIO21 inversion control
0: Keep input value
1: Invert input value
20
INV20
GPIO20_DINV
GPIO20 inversion control
0: Keep input value
1: Invert input value
19
INV19
GPIO19_DINV
GPIO19 inversion control
0: Keep input value
1: Invert input value
18
INV18
GPIO18_DINV
GPIO18 inversion control
0: Keep input value
1: Invert input value
17
INV17
GPIO17_DINV
GPIO17 inversion control
0: Keep input value
1: Invert input value
16
INV16
GPIO16_DINV
GPIO16 inversion control
0: Keep input value
1: Invert input value
15
INV15
GPIO15_DINV
GPIO15 inversion control
0: Keep input value
1: Invert input value
14
INV14
GPIO14_DINV
GPIO14 inversion control
0: Keep input value
1: Invert input value
13
INV13
GPIO13_DINV
GPIO13 inversion control
0: Keep input value
1: Invert input value
12
INV12
GPIO12_DINV
GPIO12 inversion control
0: Keep input value
1: Invert input value
11
INV11
GPIO11_DINV
GPIO11 inversion control
0: Keep input value
1: Invert input value
10
INV10
GPIO10_DINV
GPIO10 inversion control
0: Keep input value
1: Invert input value
9
INV9
GPIO9_DINV
GPIO9 inversion control
0: Keep input value
1: Invert input value
8
INV8
GPIO8_DINV
GPIO8 inversion control
0: Keep input value
1: Invert input value
7
INV7
GPIO7_DINV
GPIO7 inversion control
0: Keep input value
1: Invert input value
6
INV6
GPIO6_DINV
GPIO6 inversion control
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep input value
1: Invert input value
5
INV5
GPIO5_DINV
GPIO5 inversion control
0: Keep input value
1: Invert input value
4
INV4
GPIO4_DINV
GPIO4 inversion control
0: Keep input value
1: Invert input value
3
INV3
GPIO3_DINV
GPIO3 inversion control
0: Keep input value
1: Invert input value
2
INV2
GPIO2_DINV
GPIO2 inversion control
0: Keep input value
1: Invert input value
1
INV1
GPIO1_DINV
GPIO1 inversion control
0: Keep input value
1: Invert input value
0
INV0
GPIO0_DINV
GPIO0 inversion control
0: Keep input value
1: Invert input value
A2020204
GPIO_DINV0_
GPIO Data Inversion Control
SET
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name INV31 INV3 INV2 INV2 INV27 INV2 INV25 INV2 INV2 INV2 INV21 INV2 INV19 INV18 INV17 INV16
0
9
8
6
4
3
2
0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name INV15 INV14 INV13 INV12 INV11 INV10 INV9 INV8 INV7 INV6 INV5 INV4 INV3 INV2 INV1 INV0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DINV0
Bit(s) Mnemonic Name
Description
31
INV31
GPIO31_DINV
Bitwise SET operation of GPIO31 inversion control
0: Keep
1: SET bits
30
INV30
GPIO30_DINV
Bitwise SET operation of GPIO30 inversion control
0: Keep
1: SET bits
29
INV29
GPIO29_DINV
Bitwise SET operation of GPIO29 inversion control
0: Keep
1: SET bits
28
INV28
GPIO28_DINV
Bitwise SET operation of GPIO28 inversion control
0: Keep
1: SET bits
27
INV27
GPIO27_DINV
Bitwise SET operation of GPIO27 inversion control
0: Keep
1: SET bits
26
INV26
GPIO26_DINV
Bitwise SET operation of GPIO26 inversion control
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
25
INV25
GPIO25_DINV
Bitwise SET operation of GPIO25 inversion control
0: Keep
1: SET bits
24
INV24
GPIO24_DINV
Bitwise SET operation of GPIO24 inversion control
0: Keep
1: SET bits
23
INV23
GPIO23_DINV
Bitwise SET operation of GPIO23 inversion control
0: Keep
1: SET bits
22
INV22
GPIO22_DINV
Bitwise SET operation of GPIO22 inversion control
0: Keep
1: SET bits
21
INV21
GPIO21_DINV
Bitwise SET operation of GPIO21 inversion control
0: Keep
1: SET bits
20
INV20
GPIO20_DINV
Bitwise SET operation of GPIO20 inversion control
0: Keep
1: SET bits
19
INV19
GPIO19_DINV
Bitwise SET operation of GPIO19 inversion control
0: Keep
1: SET bits
18
INV18
GPIO18_DINV
Bitwise SET operation of GPIO18 inversion control
0: Keep
1: SET bits
17
INV17
GPIO17_DINV
Bitwise SET operation of GPIO17 inversion control
0: Keep
1: SET bits
16
INV16
GPIO16_DINV
Bitwise SET operation of GPIO16 inversion control
0: Keep
1: SET bits
15
INV15
GPIO15_DINV
Bitwise SET operation of GPIO15 inversion control
0: Keep
1: SET bits
14
INV14
GPIO14_DINV
Bitwise SET operation of GPIO14 inversion control
0: Keep
1: SET bits
13
INV13
GPIO13_DINV
Bitwise SET operation of GPIO13 inversion control
0: Keep
1: SET bits
12
INV12
GPIO12_DINV
Bitwise SET operation of GPIO12 inversion control
0: Keep
1: SET bits
11
INV11
GPIO11_DINV
Bitwise SET operation of GPIO11 inversion control
0: Keep
1: SET bits
10
INV10
GPIO10_DINV
Bitwise SET operation of GPIO10 inversion control
0: Keep
1: SET bits
9
INV9
GPIO9_DINV
Bitwise SET operation of GPIO9 inversion control
0: Keep
1: SET bits
8
INV8
GPIO8_DINV
Bitwise SET operation of GPIO8 inversion control
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
7
INV7
GPIO7_DINV
Bitwise SET operation of GPIO7 inversion control
0: Keep
1: SET bits
6
INV6
GPIO6_DINV
Bitwise SET operation of GPIO6 inversion control
0: Keep
1: SET bits
5
INV5
GPIO5_DINV
Bitwise SET operation of GPIO5 inversion control
0: Keep
1: SET bits
4
INV4
GPIO4_DINV
Bitwise SET operation of GPIO4 inversion control
0: Keep
1: SET bits
3
INV3
GPIO3_DINV
Bitwise SET operation of GPIO3 inversion control
0: Keep
1: SET bits
2
INV2
GPIO2_DINV
Bitwise SET operation of GPIO2 inversion control
0: Keep
1: SET bits
1
INV1
GPIO1_DINV
Bitwise SET operation of GPIO1 inversion control
0: Keep
1: SET bits
0
INV0
GPIO0_DINV
Bitwise SET operation of GPIO0 inversion control
0: Keep
1: SET bits
A2020208
Bit
GPIO_DINV0_
GPIO Data Inversion Control
CLR
31
30
29
28
27
26
25
24
23
22
00000000
21
20
19
18
17
16
Name INV31 INV3 INV2 INV2 INV27 INV2 INV25 INV2 INV2 INV2 INV21 INV2 INV19 INV18 INV17 INV16
0
9
8
6
4
3
2
0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name INV15 INV14 INV13 INV12 INV11 INV10 INV9 INV8 INV7 INV6 INV5 INV4 INV3 INV2 INV1 INV0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DINV0
Bit(s) Mnemonic Name
Description
31
INV31
GPIO31_DINV
Bitwise CLR operation of GPIO31 inversion control
0: Keep
1: CLR bits
30
INV30
GPIO30_DINV
Bitwise CLR operation of GPIO30 inversion control
0: Keep
1: CLR bits
29
INV29
GPIO29_DINV
Bitwise CLR operation of GPIO29 inversion control
0: Keep
1: CLR bits
28
INV28
GPIO28_DINV
Bitwise CLR operation of GPIO28 inversion control
0: Keep
1: CLR bits
27
INV27
GPIO27_DINV
Bitwise CLR operation of GPIO27 inversion control
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: CLR bits
26
INV26
GPIO26_DINV
Bitwise CLR operation of GPIO26 inversion control
0: Keep
1: CLR bits
25
INV25
GPIO25_DINV
Bitwise CLR operation of GPIO25 inversion control
0: Keep
1: CLR bits
24
INV24
GPIO24_DINV
Bitwise CLR operation of GPIO24 inversion control
0: Keep
1: CLR bits
23
INV23
GPIO23_DINV
Bitwise CLR operation of GPIO23 inversion control
0: Keep
1: CLR bits
22
INV22
GPIO22_DINV
Bitwise CLR operation of GPIO22 inversion control
0: Keep
1: CLR bits
21
INV21
GPIO21_DINV
Bitwise CLR operation of GPIO21 inversion control
0: Keep
1: CLR bits
20
INV20
GPIO20_DINV
Bitwise CLR operation of GPIO20 inversion control
0: Keep
1: CLR bits
19
INV19
GPIO19_DINV
Bitwise CLR operation of GPIO19 inversion control
0: Keep
1: CLR bits
18
INV18
GPIO18_DINV
Bitwise CLR operation of GPIO18 inversion control
0: Keep
1: CLR bits
17
INV17
GPIO17_DINV
Bitwise CLR operation of GPIO17 inversion control
0: Keep
1: CLR bits
16
INV16
GPIO16_DINV
Bitwise CLR operation of GPIO16 inversion control
0: Keep
1: CLR bits
15
INV15
GPIO15_DINV
Bitwise CLR operation of GPIO15 inversion control
0: Keep
1: CLR bits
14
INV14
GPIO14_DINV
Bitwise CLR operation of GPIO14 inversion control
0: Keep
1: CLR bits
13
INV13
GPIO13_DINV
Bitwise CLR operation of GPIO13 inversion control
0: Keep
1: CLR bits
12
INV12
GPIO12_DINV
Bitwise CLR operation of GPIO12 inversion control
0: Keep
1: CLR bits
11
INV11
GPIO11_DINV
Bitwise CLR operation of GPIO11 inversion control
0: Keep
1: CLR bits
10
INV10
GPIO10_DINV
Bitwise CLR operation of GPIO10 inversion control
0: Keep
1: CLR bits
9
INV9
GPIO9_DINV
Bitwise CLR operation of GPIO9 inversion control
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: CLR bits
8
INV8
GPIO8_DINV
Bitwise CLR operation of GPIO8 inversion control
0: Keep
1: CLR bits
7
INV7
GPIO7_DINV
Bitwise CLR operation of GPIO7 inversion control
0: Keep
1: CLR bits
6
INV6
GPIO6_DINV
Bitwise CLR operation of GPIO6 inversion control
0: Keep
1: CLR bits
5
INV5
GPIO5_DINV
Bitwise CLR operation of GPIO5 inversion control
0: Keep
1: CLR bits
4
INV4
GPIO4_DINV
Bitwise CLR operation of GPIO4 inversion control
0: Keep
1: CLR bits
3
INV3
GPIO3_DINV
Bitwise CLR operation of GPIO3 inversion control
0: Keep
1: CLR bits
2
INV2
GPIO2_DINV
Bitwise CLR operation of GPIO2 inversion control
0: Keep
1: CLR bits
1
INV1
GPIO1_DINV
Bitwise CLR operation of GPIO1 inversion control
0: Keep
1: CLR bits
0
INV0
GPIO0_DINV
Bitwise CLR operation of GPIO0 inversion control
0: Keep
1: CLR bits
A2020210
Bit
GPIO_DINV1
GPIO Data Inversion Control
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
INV4
8
RW
0
0
INV4 INV4
INV4 INV4 INV4
INV4 INV3 INV3
INV3
INV3 INV3 INV3
Name
INV45
INV41
INV37
INV35
7
6
4
3
2
0
9
8
6
4
3
2
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Configures GPIO inversion enabling
Bit(s) Mnemonic Name
Description
16
INV48
GPIO48_DINV
GPIO48 inversion control
0: Keep input value
1: Invert input value
15
INV47
GPIO47_DINV
GPIO47 inversion control
0: Keep input value
1: Invert input value
14
INV46
GPIO46_DINV
GPIO46 inversion control
0: Keep input value
1: Invert input value
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
13
INV45
GPIO45_DINV
GPIO45 inversion control
0: Keep input value
1: Invert input value
12
INV44
GPIO44_DINV
GPIO44 inversion control
0: Keep input value
1: Invert input value
11
INV43
GPIO43_DINV
GPIO43 inversion control
0: Keep input value
1: Invert input value
10
INV42
GPIO42_DINV
GPIO42 inversion control
0: Keep input value
1: Invert input value
9
INV41
GPIO41_DINV
GPIO41 inversion control
0: Keep input value
1: Invert input value
8
INV40
GPIO40_DINV
GPIO40 inversion control
0: Keep input value
1: Invert input value
7
INV39
GPIO39_DINV
GPIO39 inversion control
0: Keep input value
1: Invert input value
6
INV38
GPIO38_DINV
GPIO38 inversion control
0: Keep input value
1: Invert input value
5
INV37
GPIO37_DINV
GPIO37 inversion control
0: Keep input value
1: Invert input value
4
INV36
GPIO36_DINV
GPIO36 inversion control
0: Keep input value
1: Invert input value
3
INV35
GPIO35_DINV
GPIO35 inversion control
0: Keep input value
1: Invert input value
2
INV34
GPIO34_DINV
GPIO34 inversion control
0: Keep input value
1: Invert input value
1
INV33
GPIO33_DINV
GPIO33 inversion control
0: Keep input value
1: Invert input value
0
INV32
GPIO32_DINV
GPIO32 inversion control
0: Keep input value
1: Invert input value
A2020214
Bit
GPIO_DINV1_
GPIO Data Inversion Control
SET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
INV4
8
WO
0
0
Name INV4 INV4 INV45 INV4 INV4 INV4 INV41 INV4 INV3 INV3 INV37 INV3 INV35 INV3 INV3 INV3
7
6
4
3
2
0
9
8
6
4
3
2
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Reset
0
Overview
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
For bitwise access of GPIO_DINV1
Bit(s) Mnemonic Name
Description
16
INV48
GPIO48_DINV
Bitwise SET operation of GPIO48 inversion control
0: Keep
1: SET bits
15
INV47
GPIO47_DINV
Bitwise SET operation of GPIO47 inversion control
0: Keep
1: SET bits
14
INV46
GPIO46_DINV
Bitwise SET operation of GPIO46 inversion control
0: Keep
1: SET bits
13
INV45
GPIO45_DINV
Bitwise SET operation of GPIO45 inversion control
0: Keep
1: SET bits
12
INV44
GPIO44_DINV
Bitwise SET operation of GPIO44 inversion control
0: Keep
1: SET bits
11
INV43
GPIO43_DINV
Bitwise SET operation of GPIO43 inversion control
0: Keep
1: SET bits
10
INV42
GPIO42_DINV
Bitwise SET operation of GPIO42 inversion control
0: Keep
1: SET bits
9
INV41
GPIO41_DINV
Bitwise SET operation of GPIO41 inversion control
0: Keep
1: SET bits
8
INV40
GPIO40_DINV
Bitwise SET operation of GPIO40 inversion control
0: Keep
1: SET bits
7
INV39
GPIO39_DINV
Bitwise SET operation of GPIO39 inversion control
0: Keep
1: SET bits
6
INV38
GPIO38_DINV
Bitwise SET operation of GPIO38 inversion control
0: Keep
1: SET bits
5
INV37
GPIO37_DINV
Bitwise SET operation of GPIO37 inversion control
0: Keep
1: SET bits
4
INV36
GPIO36_DINV
Bitwise SET operation of GPIO36 inversion control
0: Keep
1: SET bits
3
INV35
GPIO35_DINV
Bitwise SET operation of GPIO35 inversion control
0: Keep
1: SET bits
2
INV34
GPIO34_DINV
Bitwise SET operation of GPIO34 inversion control
0: Keep
1: SET bits
1
INV33
GPIO33_DINV
Bitwise SET operation of GPIO33 inversion control
0: Keep
1: SET bits
0
INV32
GPIO32_DINV
Bitwise SET operation of GPIO32 inversion control
0: Keep
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A2020218
Bit
Description
1: SET bits
GPIO_DINV1_
GPIO Data Inversion Control
CLR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
INV4
8
WO
0
0
Name INV4 INV4 INV45 INV4 INV4 INV4 INV41 INV4 INV3 INV3 INV37 INV3 INV35 INV3 INV3 INV3
7
6
4
3
2
0
9
8
6
4
3
2
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DINV1
Bit(s) Mnemonic Name
Description
16
INV48
GPIO48_DINV
Bitwise CLR operation of GPIO48 inversion control
0: Keep
1: CLR bits
15
INV47
GPIO47_DINV
Bitwise CLR operation of GPIO47 inversion control
0: Keep
1: CLR bits
14
INV46
GPIO46_DINV
Bitwise CLR operation of GPIO46 inversion control
0: Keep
1: CLR bits
13
INV45
GPIO45_DINV
Bitwise CLR operation of GPIO45 inversion control
0: Keep
1: CLR bits
12
INV44
GPIO44_DINV
Bitwise CLR operation of GPIO44 inversion control
0: Keep
1: CLR bits
11
INV43
GPIO43_DINV
Bitwise CLR operation of GPIO43 inversion control
0: Keep
1: CLR bits
10
INV42
GPIO42_DINV
Bitwise CLR operation of GPIO42 inversion control
0: Keep
1: CLR bits
9
INV41
GPIO41_DINV
Bitwise CLR operation of GPIO41 inversion control
0: Keep
1: CLR bits
8
INV40
GPIO40_DINV
Bitwise CLR operation of GPIO40 inversion control
0: Keep
1: CLR bits
7
INV39
GPIO39_DINV
Bitwise CLR operation of GPIO39 inversion control
0: Keep
1: CLR bits
6
INV38
GPIO38_DINV
Bitwise CLR operation of GPIO38 inversion control
0: Keep
1: CLR bits
5
INV37
GPIO37_DINV
Bitwise CLR operation of GPIO37 inversion control
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
4
INV36
GPIO36_DINV
Bitwise CLR operation of GPIO36 inversion control
0: Keep
1: CLR bits
3
INV35
GPIO35_DINV
Bitwise CLR operation of GPIO35 inversion control
0: Keep
1: CLR bits
2
INV34
GPIO34_DINV
Bitwise CLR operation of GPIO34 inversion control
0: Keep
1: CLR bits
1
INV33
GPIO33_DINV
Bitwise CLR operation of GPIO33 inversion control
0: Keep
1: CLR bits
0
INV32
GPIO32_DINV
Bitwise CLR operation of GPIO32 inversion control
0: Keep
1: CLR bits
A2020300
GPIO_DOUT0 GPIO Output Data Control
02020000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
1
0
0
0
0
0
0
0
1
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Configures GPIO output value
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_OUT
GPIO31 data output value
0: GPIO output LO
1: GPIO output HI
30
GPIO30
GPIO30_OUT
GPIO30 data output value
0: GPIO output LO
1: GPIO output HI
29
GPIO29
GPIO29_OUT
GPIO29 data output value
0: GPIO output LO
1: GPIO output HI
28
GPIO28
GPIO28_OUT
GPIO28 data output value
0: GPIO output LO
1: GPIO output HI
27
GPIO27
GPIO27_OUT
GPIO27 data output value
0: GPIO output LO
1: GPIO output HI
26
GPIO26
GPIO26_OUT
GPIO26 data output value
0: GPIO output LO
1: GPIO output HI
25
GPIO25
GPIO25_OUT
GPIO25 data output value
0: GPIO output LO
1: GPIO output HI
24
GPIO24
GPIO24_OUT
GPIO24 data output value
0: GPIO output LO
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: GPIO output HI
23
GPIO23
GPIO23_OUT
GPIO23 data output value
0: GPIO output LO
1: GPIO output HI
22
GPIO22
GPIO22_OUT
GPIO22 data output value
0: GPIO output LO
1: GPIO output HI
21
GPIO21
GPIO21_OUT
GPIO21 data output value
0: GPIO output LO
1: GPIO output HI
20
GPIO20
GPIO20_OUT
GPIO20 data output value
0: GPIO output LO
1: GPIO output HI
19
GPIO19
GPIO19_OUT
GPIO19 data output value
0: GPIO output LO
1: GPIO output HI
18
GPIO18
GPIO18_OUT
GPIO18 data output value
0: GPIO output LO
1: GPIO output HI
17
GPIO17
GPIO17_OUT
GPIO17 data output value
0: GPIO output LO
1: GPIO output HI
16
GPIO16
GPIO16_OUT
GPIO16 data output value
0: GPIO output LO
1: GPIO output HI
15
GPIO15
GPIO15_OUT
GPIO15 data output value
0: GPIO output LO
1: GPIO output HI
14
GPIO14
GPIO14_OUT
GPIO14 data output value
0: GPIO output LO
1: GPIO output HI
13
GPIO13
GPIO13_OUT
GPIO13 data output value
0: GPIO output LO
1: GPIO output HI
12
GPIO12
GPIO12_OUT
GPIO12 data output value
0: GPIO output LO
1: GPIO output HI
11
GPIO11
GPIO11_OUT
GPIO11 data output value
0: GPIO output LO
1: GPIO output HI
10
GPIO10
GPIO10_OUT
GPIO10 data output value
0: GPIO output LO
1: GPIO output HI
9
GPIO9
GPIO9_OUT
GPIO9 data output value
0: GPIO output LO
1: GPIO output HI
8
GPIO8
GPIO8_OUT
GPIO8 data output value
0: GPIO output LO
1: GPIO output HI
7
GPIO7
GPIO7_OUT
GPIO7 data output value
0: GPIO output LO
1: GPIO output HI
6
GPIO6
GPIO6_OUT
GPIO6 data output value
0: GPIO output LO
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: GPIO output HI
5
GPIO5
GPIO5_OUT
GPIO5 data output value
0: GPIO output LO
1: GPIO output HI
4
GPIO4
GPIO4_OUT
GPIO4 data output value
0: GPIO output LO
1: GPIO output HI
3
GPIO3
GPIO3_OUT
GPIO3 data output value
0: GPIO output LO
1: GPIO output HI
2
GPIO2
GPIO2_OUT
GPIO2 data output value
0: GPIO output LO
1: GPIO output HI
1
GPIO1
GPIO1_OUT
GPIO1 data output value
0: GPIO output LO
1: GPIO output HI
0
GPIO0
GPIO0_OUT
GPIO0 data output value
0: GPIO output LO
1: GPIO output HI
A2020304
GPIO_DOUT0_
GPIO Output Data Control
SET
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DIR0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_OUT
Bitwise SET operation of GPIO31 data output value
0: Keep
1: SET bits
30
GPIO30
GPIO30_OUT
Bitwise SET operation of GPIO30 data output value
0: Keep
1: SET bits
29
GPIO29
GPIO29_OUT
Bitwise SET operation of GPIO29 data output value
0: Keep
1: SET bits
28
GPIO28
GPIO28_OUT
Bitwise SET operation of GPIO28 data output value
0: Keep
1: SET bits
27
GPIO27
GPIO27_OUT
Bitwise SET operation of GPIO27 data output value
0: Keep
1: SET bits
26
GPIO26
GPIO26_OUT
Bitwise SET operation of GPIO26 data output value
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
25
GPIO25
GPIO25_OUT
Bitwise SET operation of GPIO25 data output value
0: Keep
1: SET bits
24
GPIO24
GPIO24_OUT
Bitwise SET operation of GPIO24 data output value
0: Keep
1: SET bits
23
GPIO23
GPIO23_OUT
Bitwise SET operation of GPIO23 data output value
0: Keep
1: SET bits
22
GPIO22
GPIO22_OUT
Bitwise SET operation of GPIO22 data output value
0: Keep
1: SET bits
21
GPIO21
GPIO21_OUT
Bitwise SET operation of GPIO21 data output value
0: Keep
1: SET bits
20
GPIO20
GPIO20_OUT
Bitwise SET operation of GPIO20 data output value
0: Keep
1: SET bits
19
GPIO19
GPIO19_OUT
Bitwise SET operation of GPIO19 data output value
0: Keep
1: SET bits
18
GPIO18
GPIO18_OUT
Bitwise SET operation of GPIO18 data output value
0: Keep
1: SET bits
17
GPIO17
GPIO17_OUT
Bitwise SET operation of GPIO17 data output value
0: Keep
1: SET bits
16
GPIO16
GPIO16_OUT
Bitwise SET operation of GPIO16 data output value
0: Keep
1: SET bits
15
GPIO15
GPIO15_OUT
Bitwise SET operation of GPIO15 data output value
0: Keep
1: SET bits
14
GPIO14
GPIO14_OUT
Bitwise SET operation of GPIO14 data output value
0: Keep
1: SET bits
13
GPIO13
GPIO13_OUT
Bitwise SET operation of GPIO13 data output value
0: Keep
1: SET bits
12
GPIO12
GPIO12_OUT
Bitwise SET operation of GPIO12 data output value
0: Keep
1: SET bits
11
GPIO11
GPIO11_OUT
Bitwise SET operation of GPIO11 data output value
0: Keep
1: SET bits
10
GPIO10
GPIO10_OUT
Bitwise SET operation of GPIO10 data output value
0: Keep
1: SET bits
9
GPIO9
GPIO9_OUT
Bitwise SET operation of GPIO9 data output value
0: Keep
1: SET bits
8
GPIO8
GPIO8_OUT
Bitwise SET operation of GPIO8 data output value
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
7
GPIO7
GPIO7_OUT
Bitwise SET operation of GPIO7 data output value
0: Keep
1: SET bits
6
GPIO6
GPIO6_OUT
Bitwise SET operation of GPIO6 data output value
0: Keep
1: SET bits
5
GPIO5
GPIO5_OUT
Bitwise SET operation of GPIO5 data output value
0: Keep
1: SET bits
4
GPIO4
GPIO4_OUT
Bitwise SET operation of GPIO4 data output value
0: Keep
1: SET bits
3
GPIO3
GPIO3_OUT
Bitwise SET operation of GPIO3 data output value
0: Keep
1: SET bits
2
GPIO2
GPIO2_OUT
Bitwise SET operation of GPIO2 data output value
0: Keep
1: SET bits
1
GPIO1
GPIO1_OUT
Bitwise SET operation of GPIO1 data output value
0: Keep
1: SET bits
0
GPIO0
GPIO0_OUT
Bitwise SET operation of GPIO0 data output value
0: Keep
1: SET bits
A2020308
GPIO_DOUT0_
GPIO Output Data Control
CLR
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DIR0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_OUT
Bitwise CLR operation of GPIO31 data output value
0: Keep
1: CLR bits
30
GPIO30
GPIO30_OUT
Bitwise CLR operation of GPIO30 data output value
0: Keep
1: CLR bits
29
GPIO29
GPIO29_OUT
Bitwise CLR operation of GPIO29 data output value
0: Keep
1: CLR bits
28
GPIO28
GPIO28_OUT
Bitwise CLR operation of GPIO28 data output value
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
27
GPIO27
GPIO27_OUT
Bitwise CLR operation of GPIO27 data output value
0: Keep
1: CLR bits
26
GPIO26
GPIO26_OUT
Bitwise CLR operation of GPIO26 data output value
0: Keep
1: CLR bits
25
GPIO25
GPIO25_OUT
Bitwise CLR operation of GPIO25 data output value
0: Keep
1: CLR bits
24
GPIO24
GPIO24_OUT
Bitwise CLR operation of GPIO24 data output value
0: Keep
1: CLR bits
23
GPIO23
GPIO23_OUT
Bitwise CLR operation of GPIO23 data output value
0: Keep
1: CLR bits
22
GPIO22
GPIO22_OUT
Bitwise CLR operation of GPIO22 data output value
0: Keep
1: CLR bits
21
GPIO21
GPIO21_OUT
Bitwise CLR operation of GPIO21 data output value
0: Keep
1: CLR bits
20
GPIO20
GPIO20_OUT
Bitwise CLR operation of GPIO20 data output value
0: Keep
1: CLR bits
19
GPIO19
GPIO19_OUT
Bitwise CLR operation of GPIO19 data output value
0: Keep
1: CLR bits
18
GPIO18
GPIO18_OUT
Bitwise CLR operation of GPIO18 data output value
0: Keep
1: CLR bits
17
GPIO17
GPIO17_OUT
Bitwise CLR operation of GPIO17 data output value
0: Keep
1: CLR bits
16
GPIO16
GPIO16_OUT
Bitwise CLR operation of GPIO16 data output value
0: Keep
1: CLR bits
15
GPIO15
GPIO15_OUT
Bitwise CLR operation of GPIO15 data output value
0: Keep
1: CLR bits
14
GPIO14
GPIO14_OUT
Bitwise CLR operation of GPIO14 data output value
0: Keep
1: CLR bits
13
GPIO13
GPIO13_OUT
Bitwise CLR operation of GPIO13 data output value
0: Keep
1: CLR bits
12
GPIO12
GPIO12_OUT
Bitwise CLR operation of GPIO12 data output value
0: Keep
1: CLR bits
11
GPIO11
GPIO11_OUT
Bitwise CLR operation of GPIO11 data output value
0: Keep
1: CLR bits
10
GPIO10
GPIO10_OUT
Bitwise CLR operation of GPIO10 data output value
0: Keep
1: CLR bits
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
9
GPIO9
GPIO9_OUT
Bitwise CLR operation of GPIO9 data output value
0: Keep
1: CLR bits
8
GPIO8
GPIO8_OUT
Bitwise CLR operation of GPIO8 data output value
0: Keep
1: CLR bits
7
GPIO7
GPIO7_OUT
Bitwise CLR operation of GPIO7 data output value
0: Keep
1: CLR bits
6
GPIO6
GPIO6_OUT
Bitwise CLR operation of GPIO6 data output value
0: Keep
1: CLR bits
5
GPIO5
GPIO5_OUT
Bitwise CLR operation of GPIO5 data output value
0: Keep
1: CLR bits
4
GPIO4
GPIO4_OUT
Bitwise CLR operation of GPIO4 data output value
0: Keep
1: CLR bits
3
GPIO3
GPIO3_OUT
Bitwise CLR operation of GPIO3 data output value
0: Keep
1: CLR bits
2
GPIO2
GPIO2_OUT
Bitwise CLR operation of GPIO2 data output value
0: Keep
1: CLR bits
1
GPIO1
GPIO1_OUT
Bitwise CLR operation of GPIO1 data output value
0: Keep
1: CLR bits
0
GPIO0
GPIO0_OUT
Bitwise CLR operation of GPIO0 data output value
0: Keep
1: CLR bits
A2020310
Bit
GPIO_DOUT1 GPIO Output Data Control
00000080
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
RW
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
1
0
0
0
0
0
0
0
Overview
Configures GPIO output value
Bit(s) Mnemonic Name
Description
6
GPIO48
GPIO48_OUT
GPIO48 data output value
0: GPIO output LO
1: GPIO output HI
15
GPIO47
GPIO47_OUT
GPIO47 data output value
0: GPIO output LO
1: GPIO output HI
14
GPIO46
GPIO46_OUT
GPIO46 data output value
0: GPIO output LO
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: GPIO output HI
13
GPIO45
GPIO45_OUT
GPIO45 data output value
0: GPIO output LO
1: GPIO output HI
12
GPIO44
GPIO44_OUT
GPIO44 data output value
0: GPIO output LO
1: GPIO output HI
11
GPIO43
GPIO43_OUT
GPIO43 data output value
0: GPIO output LO
1: GPIO output HI
10
GPIO42
GPIO42_OUT
GPIO42 data output value
0: GPIO output LO
1: GPIO output HI
9
GPIO41
GPIO41_OUT
GPIO41 data output value
0: GPIO output LO
1: GPIO output HI
8
GPIO40
GPIO40_OUT
GPIO40 data output value
0: GPIO output LO
1: GPIO output HI
7
GPIO39
GPIO39_OUT
GPIO39 data output value
0: GPIO output LO
1: GPIO output HI
6
GPIO38
GPIO38_OUT
GPIO38 data output value
0: GPIO output LO
1: GPIO output HI
5
GPIO37
GPIO37_OUT
GPIO37 data output value
0: GPIO output LO
1: GPIO output HI
4
GPIO36
GPIO36_OUT
GPIO36 data output value
0: GPIO output LO
1: GPIO output HI
3
GPIO35
GPIO35_OUT
GPIO35 data output value
0: GPIO output LO
1: GPIO output HI
2
GPIO34
GPIO34_OUT
GPIO34 data output value
0: GPIO output LO
1: GPIO output HI
1
GPIO33
GPIO33_OUT
GPIO33 data output value
0: GPIO output LO
1: GPIO output HI
0
GPIO32
GPIO32_OUT
GPIO32 data output value
0: GPIO output LO
1: GPIO output HI
A2020314
Bit
GPIO_DOUT1_
GPIO Output Data Control
SET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Type
Reset
WO
0
Overview
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
WO
0
For bitwise access of GPIO_DIR1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_OUT
Bitwise SET operation of GPIO48 data output value
0: Keep
1: SET bits
15
GPIO47
GPIO47_OUT
Bitwise SET operation of GPIO47 data output value
0: Keep
1: SET bits
14
GPIO46
GPIO46_OUT
Bitwise SET operation of GPIO46 data output value
0: Keep
1: SET bits
13
GPIO45
GPIO45_OUT
Bitwise SET operation of GPIO45 data output value
0: Keep
1: SET bits
12
GPIO44
GPIO44_OUT
Bitwise SET operation of GPIO44 data output value
0: Keep
1: SET bits
11
GPIO43
GPIO43_OUT
Bitwise SET operation of GPIO43 data output value
0: Keep
1: SET bits
10
GPIO42
GPIO42_OUT
Bitwise SET operation of GPIO42 data output value
0: Keep
1: SET bits
9
GPIO41
GPIO41_OUT
Bitwise SET operation of GPIO41 data output value
0: Keep
1: SET bits
8
GPIO40
GPIO40_OUT
Bitwise SET operation of GPIO40 data output value
0: Keep
1: SET bits
7
GPIO39
GPIO39_OUT
Bitwise SET operation of GPIO39 data output value
0: Keep
1: SET bits
6
GPIO38
GPIO38_OUT
Bitwise SET operation of GPIO38 data output value
0: Keep
1: SET bits
5
GPIO37
GPIO37_OUT
Bitwise SET operation of GPIO37 data output value
0: Keep
1: SET bits
4
GPIO36
GPIO36_OUT
Bitwise SET operation of GPIO36 data output value
0: Keep
1: SET bits
3
GPIO35
GPIO35_OUT
Bitwise SET operation of GPIO35 data output value
0: Keep
1: SET bits
2
GPIO34
GPIO34_OUT
Bitwise SET operation of GPIO34 data output value
0: Keep
1: SET bits
1
GPIO33
GPIO33_OUT
Bitwise SET operation of GPIO33 data output value
0: Keep
1: SET bits
0
GPIO32
GPIO32_OUT
Bitwise SET operation of GPIO32 data output value
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A2020318
Bit
Description
0: Keep
1: SET bits
GPIO_DOUT1_
GPIO Output Data Control
CLR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
Name
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_DIR1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_OUT
Bitwise CLR operation of GPIO48 data output value
0: Keep
1: CLR bits
15
GPIO47
GPIO47_OUT
Bitwise CLR operation of GPIO47 data output value
0: Keep
1: CLR bits
14
GPIO46
GPIO46_OUT
Bitwise CLR operation of GPIO46 data output value
0: Keep
1: CLR bits
13
GPIO45
GPIO45_OUT
Bitwise CLR operation of GPIO45 data output value
0: Keep
1: CLR bits
12
GPIO44
GPIO44_OUT
Bitwise CLR operation of GPIO44 data output value
0: Keep
1: CLR bits
11
GPIO43
GPIO43_OUT
Bitwise CLR operation of GPIO43 data output value
0: Keep
1: CLR bits
10
GPIO42
GPIO42_OUT
Bitwise CLR operation of GPIO42 data output value
0: Keep
1: CLR bits
9
GPIO41
GPIO41_OUT
Bitwise CLR operation of GPIO41 data output value
0: Keep
1: CLR bits
8
GPIO40
GPIO40_OUT
Bitwise CLR operation of GPIO40 data output value
0: Keep
1: CLR bits
7
GPIO39
GPIO39_OUT
Bitwise CLR operation of GPIO39 data output value
0: Keep
1: CLR bits
6
GPIO38
GPIO38_OUT
Bitwise CLR operation of GPIO38 data output value
0: Keep
1: CLR bits
5
GPIO37
GPIO37_OUT
Bitwise CLR operation of GPIO37 data output value
0: Keep
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
4
GPIO36
GPIO36_OUT
Bitwise CLR operation of GPIO36 data output value
0: Keep
1: CLR bits
3
GPIO35
GPIO35_OUT
Bitwise CLR operation of GPIO35 data output value
0: Keep
1: CLR bits
2
GPIO34
GPIO34_OUT
Bitwise CLR operation of GPIO34 data output value
0: Keep
1: CLR bits
1
GPIO33
GPIO33_OUT
Bitwise CLR operation of GPIO33 data output value
0: Keep
1: CLR bits
0
GPIO32
GPIO32_OUT
Bitwise CLR operation of GPIO32 data output value
0: Keep
1: CLR bits
A2020400 GPIO_DIN0
GPIO Input Data Value
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Reads GPIO input value
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_DIN
GPIO31 data input value
30
GPIO30
GPIO30_DIN
GPIO30 data input value
29
GPIO29
GPIO29_DIN
GPIO29 data input value
28
GPIO28
GPIO28_DIN
GPIO28 data input value
27
GPIO27
GPIO27_DIN
GPIO27 data input value
26
GPIO26
GPIO26_DIN
GPIO26 data input value
25
GPIO25
GPIO25_DIN
GPIO25 data input value
24
GPIO24
GPIO24_DIN
GPIO24 data input value
23
GPIO23
GPIO23_DIN
GPIO23 data input value
22
GPIO22
GPIO22_DIN
GPIO22 data input value
21
GPIO21
GPIO21_DIN
GPIO21 data input value
20
GPIO20
GPIO20_DIN
GPIO20 data input value
19
GPIO19
GPIO19_DIN
GPIO19 data input value
18
GPIO18
GPIO18_DIN
GPIO18 data input value
17
GPIO17
GPIO17_DIN
GPIO17 data input value
16
GPIO16
GPIO16_DIN
GPIO16 data input value
15
GPIO15
GPIO15_DIN
GPIO15 data input value
14
GPIO14
GPIO14_DIN
GPIO14 data input value
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
13
GPIO13
GPIO13_DIN
GPIO13 data input value
12
GPIO12
GPIO12_DIN
GPIO12 data input value
11
GPIO11
GPIO11_DIN
GPIO11 data input value
10
GPIO10
GPIO10_DIN
GPIO10 data input value
9
GPIO9
GPIO9_DIN
GPIO9 data input value
8
GPIO8
GPIO8_DIN
GPIO8 data input value
7
GPIO7
GPIO7_DIN
GPIO7 data input value
6
GPIO6
GPIO6_DIN
GPIO6 data input value
5
GPIO5
GPIO5_DIN
GPIO5 data input value
4
GPIO4
GPIO4_DIN
GPIO4 data input value
3
GPIO3
GPIO3_DIN
GPIO3 data input value
2
GPIO2
GPIO2_DIN
GPIO2 data input value
1
GPIO1
GPIO1_DIN
GPIO1 data input value
0
GPIO0
GPIO0_DIN
GPIO0 data input value
A2020410
Bit
GPIO_DIN1
GPIO Input Data Value
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
RO
0
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
Name
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
RO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Reads GPIO input value
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_DIN
GPIO48 data input value
15
GPIO47
GPIO47_DIN
GPIO47 data input value
14
GPIO46
GPIO46_DIN
GPIO46 data input value
13
GPIO45
GPIO45_DIN
GPIO45 data input value
12
GPIO44
GPIO44_DIN
GPIO44 data input value
11
GPIO43
GPIO43_DIN
GPIO43 data input value
10
GPIO42
GPIO42_DIN
GPIO42 data input value
9
GPIO41
GPIO41_DIN
GPIO41 data input value
8
GPIO40
GPIO40_DIN
GPIO40 data input value
7
GPIO39
GPIO39_DIN
GPIO39 data input value
6
GPIO38
GPIO38_DIN
GPIO38 data input value
5
GPIO37
GPIO37_DIN
GPIO37 data input value
4
GPIO36
GPIO36_DIN
GPIO36 data input value
3
GPIO35
GPIO35_DIN
GPIO35 data input value
2
GPIO34
GPIO34_DIN
GPIO34 data input value
1
GPIO33
GPIO33_DIN
GPIO33 data input value
0
GPIO32
GPIO32_DIN
GPIO32 data input value
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
A2020500
Bit
Name
Type
Reset
Bit
GPIO_PULLSE
GPIO Pullsel Control
L0
31
30
29
28
27
15
14
13
12
11
Name
Type
Reset
Overview
0000040F
26
25
24
23
22
21
20
10
9
8
7
6
5
4
GPIO1
0
RW
1
17
16
3
2
1
0
GPIO GPIO
GPIO
GPIO1
3
2
0
RW
RW
RW
RW
1
1
1
1
Description
10
GPIO10
GPIO10_PULLSEL
GPIO10_PULLSEL
0: Pull down
1: Pull up
3
GPIO3
GPIO3_PULLSEL
GPIO3_PULLSEL
0: Pull down
1: Pull up
2
GPIO2
GPIO2_PULLSEL
GPIO2_PULLSEL
0: Pull down
1: Pull up
1
GPIO1
GPIO1_PULLSEL
GPIO1_PULLSEL
0: Pull down
1: Pull up
0
GPIO0
GPIO0_PULLSEL
GPIO0_PULLSEL
0: Pull down
1: Pull up
A2020504
GPIO_PULLSE
GPIO Pullsel Control
L0_SET
31
30
29
28
27
15
14
13
12
11
Name
Type
Reset
Overview
18
Configures GPIO PUPD selection
Bit(s) Mnemonic Name
Bit
Name
Type
Reset
Bit
19
00000000
26
25
24
23
22
21
20
10
9
8
7
6
5
4
GPIO1
0
WO
0
19
18
17
16
3
2
1
0
GPIO GPIO
GPIO
GPIO1
3
2
0
WO
WO
WO
WO
0
0
0
0
For bitwise access of GPIO_PULLSEL0
Bit(s) Mnemonic Name
Description
10
GPIO10
GPIO10_PULLSEL
Bitwise SET operation of GPIO10 PULLSEL_SET
0: Keep
1: SET bits
3
GPIO3
GPIO3_PULLSEL
Bitwise SET operation of GPIO3 PULLSEL_SET
0: Keep
1: SET bits
2
GPIO2
GPIO2_PULLSEL
Bitwise SET operation of GPIO2 PULLSEL_SET
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1
GPIO1
GPIO1_PULLSEL
Bitwise SET operation of GPIO1 PULLSEL_SET
0: Keep
1: SET bits
0
GPIO0
GPIO0_PULLSEL
Bitwise SET operation of GPIO0 PULLSEL_SET
0: Keep
1: SET bits
A2020508
Bit
Name
Type
Reset
Bit
GPIO_PULLSE
GPIO Pullsel Control
L0_CLR
31
30
29
28
27
15
14
13
12
11
Name
Type
Reset
Overview
00000000
26
25
24
23
22
21
20
10
9
8
7
6
5
4
GPIO1
0
WO
0
19
18
17
16
3
2
1
0
GPIO GPIO
GPIO
GPIO1
3
2
0
WO
WO
WO
WO
0
0
0
0
For bitwise access of GPIO_PULLSEL0
Bit(s) Mnemonic Name
Description
10
GPIO10
GPIO10_PULLSEL
Bitwise CKR operation of GPIO10 PULLSEL_CLR
0: Keep
1: CLR bits
3
GPIO3
GPIO3_PULLSEL
Bitwise CKR operation of GPIO3 PULLSEL_CLR
0: Keep
1: CLR bits
2
GPIO2
GPIO2_PULLSEL
Bitwise CKR operation of GPIO2 PULLSEL_CLR
0: Keep
1: CLR bits
1
GPIO1
GPIO1_PULLSEL
Bitwise CKR operation of GPIO1 PULLSEL_CLR
0: Keep
1: CLR bits
0
GPIO0
GPIO0_PULLSEL
Bitwise CKR operation of GPIO0 PULLSEL_CLR
0: Keep
1: CLR bits
A2020600 GPIO_SMT0
GPIO SMT Control
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
Name
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Configures GPIO Schmitt trigger control
Bit(s) Mnemonic Name
Description
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_SMT
SMT for GPIO31
0: Disable
1: Enable
30
GPIO30
GPIO30_SMT
SMT for GPIO30
0: Disable
1: Enable
29
GPIO29
GPIO29_SMT
SMT for GPIO29
0: Disable
1: Enable
28
GPIO28
GPIO28_SMT
SMT for GPIO28
0: Disable
1: Enable
27
GPIO27
GPIO27_SMT
SMT for GPIO27
0: Disable
1: Enable
26
GPIO26
GPIO26_SMT
SMT for GPIO26
0: Disable
1: Enable
25
GPIO25
GPIO25_SMT
SMT for GPIO25
0: Disable
1: Enable
24
GPIO24
GPIO24_SMT
SMT for GPIO24
0: Disable
1: Enable
23
GPIO23
GPIO23_SMT
SMT for GPIO23
0: Disable
1: Enable
22
GPIO22
GPIO22_SMT
SMT for GPIO22
0: Disable
1: Enable
21
GPIO21
GPIO21_SMT
SMT for GPIO21
0: Disable
1: Enable
20
GPIO20
GPIO20_SMT
SMT for GPIO20
0: Disable
1: Enable
19
GPIO19
GPIO19_SMT
SMT for GPIO19
0: Disable
1: Enable
18
GPIO18
GPIO18_SMT
SMT for GPIO18
0: Disable
1: Enable
17
GPIO17
GPIO17_SMT
SMT for GPIO17
0: Disable
1: Enable
16
GPIO16
GPIO16_SMT
SMT for GPIO16
0: Disable
1: Enable
15
GPIO15
GPIO15_SMT
SMT for GPIO15
0: Disable
1: Enable
14
GPIO14
GPIO14_SMT
SMT for GPIO14
0: Disable
1: Enable
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
13
GPIO13
GPIO13_SMT
SMT for GPIO13
0: Disable
1: Enable
12
GPIO12
GPIO12_SMT
SMT for GPIO12
0: Disable
1: Enable
11
GPIO11
GPIO11_SMT
SMT for GPIO11
0: Disable
1: Enable
10
GPIO10
GPIO10_SMT
SMT for GPIO10
0: Disable
1: Enable
9
GPIO9
GPIO9_SMT
SMT for GPIO9
0: Disable
1: Enable
8
GPIO8
GPIO8_SMT
SMT for GPIO8
0: Disable
1: Enable
7
GPIO7
GPIO7_SMT
SMT for GPIO7
0: Disable
1: Enable
6
GPIO6
GPIO6_SMT
SMT for GPIO6
0: Disable
1: Enable
5
GPIO5
GPIO5_SMT
SMT for GPIO5
0: Disable
1: Enable
4
GPIO4
GPIO4_SMT
SMT for GPIO4
0: Disable
1: Enable
3
GPIO3
GPIO3_SMT
SMT for GPIO3
0: Disable
1: Enable
2
GPIO2
GPIO2_SMT
SMT for GPIO2
0: Disable
1: Enable
1
GPIO1
GPIO1_SMT
SMT for GPIO1
0: Disable
1: Enable
0
GPIO0
GPIO0_SMT
SMT for GPIO0
0: Disable
1: Enable
A2020604
GPIO_SMT0_S
GPIO SMT Control
ET
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Reset
0
Overview
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
For bitwise access of GPIO_SMT0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_SMT
Bitwise SET operation of GPIO31 SMT
0: Keep
1: SET bits
30
GPIO30
GPIO30_SMT
Bitwise SET operation of GPIO30 SMT
0: Keep
1: SET bits
29
GPIO29
GPIO29_SMT
Bitwise SET operation of GPIO29 SMT
0: Keep
1: SET bits
28
GPIO28
GPIO28_SMT
Bitwise SET operation of GPIO28 SMT
0: Keep
1: SET bits
27
GPIO27
GPIO27_SMT
Bitwise SET operation of GPIO27 SMT
0: Keep
1: SET bits
26
GPIO26
GPIO26_SMT
Bitwise SET operation of GPIO26 SMT
0: Keep
1: SET bits
25
GPIO25
GPIO25_SMT
Bitwise SET operation of GPIO25 SMT
0: Keep
1: SET bits
24
GPIO24
GPIO24_SMT
Bitwise SET operation of GPIO24 SMT
0: Keep
1: SET bits
23
GPIO23
GPIO23_SMT
Bitwise SET operation of GPIO23 SMT
0: Keep
1: SET bits
22
GPIO22
GPIO22_SMT
Bitwise SET operation of GPIO22 SMT
0: Keep
1: SET bits
21
GPIO21
GPIO21_SMT
Bitwise SET operation of GPIO21 SMT
0: Keep
1: SET bits
20
GPIO20
GPIO20_SMT
Bitwise SET operation of GPIO20 SMT
0: Keep
1: SET bits
19
GPIO19
GPIO19_SMT
Bitwise SET operation of GPIO19 SMT
0: Keep
1: SET bits
18
GPIO18
GPIO18_SMT
Bitwise SET operation of GPIO18 SMT
0: Keep
1: SET bits
17
GPIO17
GPIO17_SMT
Bitwise SET operation of GPIO17 SMT
0: Keep
1: SET bits
16
GPIO16
GPIO16_SMT
Bitwise SET operation of GPIO16 SMT
0: Keep
1: SET bits
15
GPIO15
GPIO15_SMT
Bitwise SET operation of GPIO15 SMT
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: SET bits
14
GPIO14
GPIO14_SMT
Bitwise SET operation of GPIO14 SMT
0: Keep
1: SET bits
13
GPIO13
GPIO13_SMT
Bitwise SET operation of GPIO13 SMT
0: Keep
1: SET bits
12
GPIO12
GPIO12_SMT
Bitwise SET operation of GPIO12 SMT
0: Keep
1: SET bits
11
GPIO11
GPIO11_SMT
Bitwise SET operation of GPIO11 SMT
0: Keep
1: SET bits
10
GPIO10
GPIO10_SMT
Bitwise SET operation of GPIO10 SMT
0: Keep
1: SET bits
9
GPIO9
GPIO9_SMT
Bitwise SET operation of GPIO9 SMT
0: Keep
1: SET bits
8
GPIO8
GPIO8_SMT
Bitwise SET operation of GPIO8 SMT
0: Keep
1: SET bits
7
GPIO7
GPIO7_SMT
Bitwise SET operation of GPIO7 SMT
0: Keep
1: SET bits
6
GPIO6
GPIO6_SMT
Bitwise SET operation of GPIO6 SMT
0: Keep
1: SET bits
5
GPIO5
GPIO5_SMT
Bitwise SET operation of GPIO5 SMT
0: Keep
1: SET bits
4
GPIO4
GPIO4_SMT
Bitwise SET operation of GPIO4 SMT
0: Keep
1: SET bits
3
GPIO3
GPIO3_SMT
Bitwise SET operation of GPIO3 SMT
0: Keep
1: SET bits
2
GPIO2
GPIO2_SMT
Bitwise SET operation of GPIO2 SMT
0: Keep
1: SET bits
1
GPIO1
GPIO1_SMT
Bitwise SET operation of GPIO1 SMT
0: Keep
1: SET bits
0
GPIO0
GPIO0_SMT
Bitwise SET operation of GPIO0 SMT
0: Keep
1: SET bits
A2020608
Bit
31
GPIO_SMT0_C
GPIO SMT Control
LR
30
29
28
27
26
25
24
00000000
23
22
21
20
19
18
17
16
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Reset
Bit
Name
Type
Reset
0
0
15
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
0
2
1
0
0
GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
GPIO
GPIO1
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_SMT0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_SMT
Bitwise CLR operation of GPIO31 SMT
0: Keep
1: CLR bits
30
GPIO30
GPIO30_SMT
Bitwise CLR operation of GPIO30 SMT
0: Keep
1: CLR bits
29
GPIO29
GPIO29_SMT
Bitwise CLR operation of GPIO29 SMT
0: Keep
1: CLR bits
28
GPIO28
GPIO28_SMT
Bitwise CLR operation of GPIO28 SMT
0: Keep
1: CLR bits
27
GPIO27
GPIO27_SMT
Bitwise CLR operation of GPIO27 SMT
0: Keep
1: CLR bits
26
GPIO26
GPIO26_SMT
Bitwise CLR operation of GPIO26 SMT
0: Keep
1: CLR bits
25
GPIO25
GPIO25_SMT
Bitwise CLR operation of GPIO25 SMT
0: Keep
1: CLR bits
24
GPIO24
GPIO24_SMT
Bitwise CLR operation of GPIO24 SMT
0: Keep
1: CLR bits
23
GPIO23
GPIO23_SMT
Bitwise CLR operation of GPIO23 SMT
0: Keep
1: CLR bits
22
GPIO22
GPIO22_SMT
Bitwise CLR operation of GPIO22 SMT
0: Keep
1: CLR bits
21
GPIO21
GPIO21_SMT
Bitwise CLR operation of GPIO21 SMT
0: Keep
1: CLR bits
20
GPIO20
GPIO20_SMT
Bitwise CLR operation of GPIO20 SMT
0: Keep
1: CLR bits
19
GPIO19
GPIO19_SMT
Bitwise CLR operation of GPIO19 SMT
0: Keep
1: CLR bits
18
GPIO18
GPIO18_SMT
Bitwise CLR operation of GPIO18 SMT
0: Keep
1: CLR bits
17
GPIO17
GPIO17_SMT
Bitwise CLR operation of GPIO17 SMT
0: Keep
1: CLR bits
16
GPIO16
GPIO16_SMT
Bitwise CLR operation of GPIO16 SMT
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: CLR bits
15
GPIO15
GPIO15_SMT
Bitwise CLR operation of GPIO15 SMT
0: Keep
1: CLR bits
14
GPIO14
GPIO14_SMT
Bitwise CLR operation of GPIO14 SMT
0: Keep
1: CLR bits
13
GPIO13
GPIO13_SMT
Bitwise CLR operation of GPIO13 SMT
0: Keep
1: CLR bits
12
GPIO12
GPIO12_SMT
Bitwise CLR operation of GPIO12 SMT
0: Keep
1: CLR bits
11
GPIO11
GPIO11_SMT
Bitwise CLR operation of GPIO11 SMT
0: Keep
1: CLR bits
10
GPIO10
GPIO10_SMT
Bitwise CLR operation of GPIO10 SMT
0: Keep
1: CLR bits
9
GPIO9
GPIO9_SMT
Bitwise CLR operation of GPIO9 SMT
0: Keep
1: CLR bits
8
GPIO8
GPIO8_SMT
Bitwise CLR operation of GPIO8 SMT
0: Keep
1: CLR bits
7
GPIO7
GPIO7_SMT
Bitwise CLR operation of GPIO7 SMT
0: Keep
1: CLR bits
6
GPIO6
GPIO6_SMT
Bitwise CLR operation of GPIO6 SMT
0: Keep
1: CLR bits
5
GPIO5
GPIO5_SMT
Bitwise CLR operation of GPIO5 SMT
0: Keep
1: CLR bits
4
GPIO4
GPIO4_SMT
Bitwise CLR operation of GPIO4 SMT
0: Keep
1: CLR bits
3
GPIO3
GPIO3_SMT
Bitwise CLR operation of GPIO3 SMT
0: Keep
1: CLR bits
2
GPIO2
GPIO2_SMT
Bitwise CLR operation of GPIO2 SMT
0: Keep
1: CLR bits
1
GPIO1
GPIO1_SMT
Bitwise CLR operation of GPIO1 SMT
0: Keep
1: CLR bits
0
GPIO0
GPIO0_SMT
Bitwise CLR operation of GPIO0 SMT
0: Keep
1: CLR bits
A2020610
GPIO_SMT1
GPIO SMT Control
© 2015 - 2018 Airoha Technology Corp.
00000000
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
RW
0
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
Name
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Configures GPIO Schmitt trigger control
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_SMT
SMT for GPIO48
0: Disable
1: Enable
15
GPIO47
GPIO47_SMT
SMT for GPIO47
0: Disable
1: Enable
14
GPIO46
GPIO46_SMT
SMT for GPIO46
0: Disable
1: Enable
13
GPIO45
GPIO45_SMT
SMT for GPIO45
0: Disable
1: Enable
12
GPIO44
GPIO44_SMT
SMT for GPIO44
0: Disable
1: Enable
11
GPIO43
GPIO43_SMT
SMT for GPIO43
0: Disable
1: Enable
10
GPIO42
GPIO42_SMT
SMT for GPIO42
0: Disable
1: Enable
9
GPIO41
GPIO41_SMT
SMT for GPIO41
0: Disable
1: Enable
8
GPIO40
GPIO40_SMT
SMT for GPIO40
0: Disable
1: Enable
7
GPIO39
GPIO39_SMT
SMT for GPIO39
0: Disable
1: Enable
6
GPIO38
GPIO38_SMT
SMT for GPIO38
0: Disable
1: Enable
5
GPIO37
GPIO37_SMT
SMT for GPIO37
0: Disable
1: Enable
4
GPIO36
GPIO36_SMT
SMT for GPIO36
0: Disable
1: Enable
3
GPIO35
GPIO35_SMT
SMT for GPIO35
0: Disable
1: Enable
2
GPIO34
GPIO34_SMT
SMT for GPIO34
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Disable
1: Enable
1
GPIO33
GPIO33_SMT
SMT for GPIO33
0: Disable
1: Enable
0
GPIO32
GPIO32_SMT
SMT for GPIO32
0: Disable
1: Enable
A2020614
Bit
GPIO_SMT1_S
GPIO SMT Control
ET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
Name
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_SMT1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_SMT
Bitwise SET operation of GPIO48 SMT
0: Keep
1: SET bits
15
GPIO47
GPIO47_SMT
Bitwise SET operation of GPIO47 SMT
0: Keep
1: SET bits
14
GPIO46
GPIO46_SMT
Bitwise SET operation of GPIO46 SMT
0: Keep
1: SET bits
13
GPIO45
GPIO45_SMT
Bitwise SET operation of GPIO45 SMT
0: Keep
1: SET bits
12
GPIO44
GPIO44_SMT
Bitwise SET operation of GPIO44 SMT
0: Keep
1: SET bits
11
GPIO43
GPIO43_SMT
Bitwise SET operation of GPIO43 SMT
0: Keep
1: SET bits
10
GPIO42
GPIO42_SMT
Bitwise SET operation of GPIO42 SMT
0: Keep
1: SET bits
9
GPIO41
GPIO41_SMT
Bitwise SET operation of GPIO41 SMT
0: Keep
1: SET bits
8
GPIO40
GPIO40_SMT
Bitwise SET operation of GPIO40 SMT
0: Keep
1: SET bits
7
GPIO39
GPIO39_SMT
Bitwise SET operation of GPIO39 SMT
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: SET bits
6
GPIO38
GPIO38_SMT
Bitwise SET operation of GPIO38 SMT
0: Keep
1: SET bits
5
GPIO37
GPIO37_SMT
Bitwise SET operation of GPIO37 SMT
0: Keep
1: SET bits
4
GPIO36
GPIO36_SMT
Bitwise SET operation of GPIO36 SMT
0: Keep
1: SET bits
3
GPIO35
GPIO35_SMT
Bitwise SET operation of GPIO35 SMT
0: Keep
1: SET bits
2
GPIO34
GPIO34_SMT
Bitwise SET operation of GPIO34 SMT
0: Keep
1: SET bits
1
GPIO33
GPIO33_SMT
Bitwise SET operation of GPIO33 SMT
0: Keep
1: SET bits
0
GPIO32
GPIO32_SMT
Bitwise SET operation of GPIO32 SMT
0: Keep
1: SET bits
A2020618
Bit
GPIO_SMT1_C
GPIO SMT Control
LR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_SMT1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_SMT
Bitwise CLR operation of GPIO48 SMT
0: Keep
1: CLR bits
15
GPIO47
GPIO47_SMT
Bitwise CLR operation of GPIO47 SMT
0: Keep
1: CLR bits
14
GPIO46
GPIO46_SMT
Bitwise CLR operation of GPIO46 SMT
0: Keep
1: CLR bits
13
GPIO45
GPIO45_SMT
Bitwise CLR operation of GPIO45 SMT
0: Keep
1: CLR bits
12
GPIO44
GPIO44_SMT
Bitwise CLR operation of GPIO44 SMT
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
11
GPIO43
GPIO43_SMT
Bitwise CLR operation of GPIO43 SMT
0: Keep
1: CLR bits
10
GPIO42
GPIO42_SMT
Bitwise CLR operation of GPIO42 SMT
0: Keep
1: CLR bits
9
GPIO41
GPIO41_SMT
Bitwise CLR operation of GPIO41 SMT
0: Keep
1: CLR bits
8
GPIO40
GPIO40_SMT
Bitwise CLR operation of GPIO40 SMT
0: Keep
1: CLR bits
7
GPIO39
GPIO39_SMT
Bitwise CLR operation of GPIO39 SMT
0: Keep
1: CLR bits
6
GPIO38
GPIO38_SMT
Bitwise CLR operation of GPIO38 SMT
0: Keep
1: CLR bits
5
GPIO37
GPIO37_SMT
Bitwise CLR operation of GPIO37 SMT
0: Keep
1: CLR bits
4
GPIO36
GPIO36_SMT
Bitwise CLR operation of GPIO36 SMT
0: Keep
1: CLR bits
3
GPIO35
GPIO35_SMT
Bitwise CLR operation of GPIO35 SMT
0: Keep
1: CLR bits
2
GPIO34
GPIO34_SMT
Bitwise CLR operation of GPIO34 SMT
0: Keep
1: CLR bits
1
GPIO33
GPIO33_SMT
Bitwise CLR operation of GPIO33 SMT
0: Keep
1: CLR bits
0
GPIO32
GPIO32_SMT
Bitwise CLR operation of GPIO32 SMT
0: Keep
1: CLR bits
A2020700
GPIO_SR0
GPIO SR Control
FFFFFFFF
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Overview
Configures GPIO slew rate control
Bit(s) Mnemonic Name
31
GPIO31
GPIO31_SR
Description
SR for GPIO31
0: Disable
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: Enable
30
GPIO30
GPIO30_SR
SR for GPIO30
0: Disable
1: Enable
29
GPIO29
GPIO29_SR
SR for GPIO29
0: Disable
1: Enable
28
GPIO28
GPIO28_SR
SR for GPIO28
0: Disable
1: Enable
27
GPIO27
GPIO27_SR
SR for GPIO27
0: Disable
1: Enable
26
GPIO26
GPIO26_SR
SR for GPIO26
0: Disable
1: Enable
25
GPIO25
GPIO25_SR
SR for GPIO25
0: Disable
1: Enable
24
GPIO24
GPIO24_SR
SR for GPIO24
0: Disable
1: Enable
23
GPIO23
GPIO23_SR
SR for GPIO23
0: Disable
1: Enable
22
GPIO22
GPIO22_SR
SR for GPIO22
0: Disable
1: Enable
21
GPIO21
GPIO21_SR
SR for GPIO21
0: Disable
1: Enable
20
GPIO20
GPIO20_SR
SR for GPIO20
0: Disable
1: Enable
19
GPIO19
GPIO19_SR
SR for GPIO19
0: Disable
1: Enable
18
GPIO18
GPIO18_SR
SR for GPIO18
0: Disable
1: Enable
17
GPIO17
GPIO17_SR
SR for GPIO17
0: Disable
1: Enable
16
GPIO16
GPIO16_SR
SR for GPIO16
0: Disable
1: Enable
15
GPIO15
GPIO15_SR
SR for GPIO15
0: Disable
1: Enable
14
GPIO14
GPIO14_SR
SR for GPIO14
0: Disable
1: Enable
13
GPIO13
GPIO13_SR
SR for GPIO13
0: Disable
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: Enable
12
GPIO12
GPIO12_SR
SR for GPIO12
0: Disable
1: Enable
11
GPIO11
GPIO11_SR
SR for GPIO11
0: Disable
1: Enable
10
GPIO10
GPIO10_SR
SR for GPIO10
0: Disable
1: Enable
9
GPIO9
GPIO9_SR
SR for GPIO9
0: Disable
1: Enable
8
GPIO8
GPIO8_SR
SR for GPIO8
0: Disable
1: Enable
7
GPIO7
GPIO7_SR
SR for GPIO7
0: Disable
1: Enable
6
GPIO6
GPIO6_SR
SR for GPIO6
0: Disable
1: Enable
5
GPIO5
GPIO5_SR
SR for GPIO5
0: Disable
1: Enable
4
GPIO4
GPIO4_SR
SR for GPIO4
0: Disable
1: Enable
3
GPIO3
GPIO3_SR
SR for GPIO3
0: Disable
1: Enable
2
GPIO2
GPIO2_SR
SR for GPIO2
0: Disable
1: Enable
1
GPIO1
GPIO1_SR
SR for GPIO1
0: Disable
1: Enable
0
GPIO0
GPIO0_SR
SR for GPIO0
0: Disable
1: Enable
A2020704
GPIO_SR0_SE
GPIO SR Control
T
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Overview
For bitwise access of GPIO_SR0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_SR
Bitwise SET operation of GPIO31 SR
0: Keep
1: SET bits
30
GPIO30
GPIO30_SR
Bitwise SET operation of GPIO30 SR
0: Keep
1: SET bits
29
GPIO29
GPIO29_SR
Bitwise SET operation of GPIO29 SR
0: Keep
1: SET bits
28
GPIO28
GPIO28_SR
Bitwise SET operation of GPIO28 SR
0: Keep
1: SET bits
27
GPIO27
GPIO27_SR
Bitwise SET operation of GPIO27 SR
0: Keep
1: SET bits
26
GPIO26
GPIO26_SR
Bitwise SET operation of GPIO26 SR
0: Keep
1: SET bits
25
GPIO25
GPIO25_SR
Bitwise SET operation of GPIO25 SR
0: Keep
1: SET bits
24
GPIO24
GPIO24_SR
Bitwise SET operation of GPIO24 SR
0: Keep
1: SET bits
23
GPIO23
GPIO23_SR
Bitwise SET operation of GPIO23 SR
0: Keep
1: SET bits
22
GPIO22
GPIO22_SR
Bitwise SET operation of GPIO22 SR
0: Keep
1: SET bits
21
GPIO21
GPIO21_SR
Bitwise SET operation of GPIO21 SR
0: Keep
1: SET bits
20
GPIO20
GPIO20_SR
Bitwise SET operation of GPIO20 SR
0: Keep
1: SET bits
19
GPIO19
GPIO19_SR
Bitwise SET operation of GPIO19 SR
0: Keep
1: SET bits
18
GPIO18
GPIO18_SR
Bitwise SET operation of GPIO18 SR
0: Keep
1: SET bits
17
GPIO17
GPIO17_SR
Bitwise SET operation of GPIO17 SR
0: Keep
1: SET bits
16
GPIO16
GPIO16_SR
Bitwise SET operation of GPIO16 SR
0: Keep
1: SET bits
15
GPIO15
GPIO15_SR
Bitwise SET operation of GPIO15 SR
0: Keep
1: SET bits
14
GPIO14
GPIO14_SR
Bitwise SET operation of GPIO14 SR
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: SET bits
13
GPIO13
GPIO13_SR
Bitwise SET operation of GPIO13 SR
0: Keep
1: SET bits
12
GPIO12
GPIO12_SR
Bitwise SET operation of GPIO12 SR
0: Keep
1: SET bits
11
GPIO11
GPIO11_SR
Bitwise SET operation of GPIO11 SR
0: Keep
1: SET bits
10
GPIO10
GPIO10_SR
Bitwise SET operation of GPIO10 SR
0: Keep
1: SET bits
9
GPIO9
GPIO9_SR
Bitwise SET operation of GPIO9 SR
0: Keep
1: SET bits
8
GPIO8
GPIO8_SR
Bitwise SET operation of GPIO8 SR
0: Keep
1: SET bits
7
GPIO7
GPIO7_SR
Bitwise SET operation of GPIO7 SR
0: Keep
1: SET bits
6
GPIO6
GPIO6_SR
Bitwise SET operation of GPIO6 SR
0: Keep
1: SET bits
5
GPIO5
GPIO5_SR
Bitwise SET operation of GPIO5 SR
0: Keep
1: SET bits
4
GPIO4
GPIO4_SR
Bitwise SET operation of GPIO4 SR
0: Keep
1: SET bits
3
GPIO3
GPIO3_SR
Bitwise SET operation of GPIO3 SR
0: Keep
1: SET bits
2
GPIO2
GPIO2_SR
Bitwise SET operation of GPIO2 SR
0: Keep
1: SET bits
1
GPIO1
GPIO1_SR
Bitwise SET operation of GPIO1 SR
0: Keep
1: SET bits
0
GPIO0
GPIO0_SR
Bitwise SET operation of GPIO0 SR
0: Keep
1: SET bits
A2020708
GPIO_SR0_CL
GPIO SR Control
R
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
Type
Reset
Bit
31
WO
0
15
30
WO
0
14
29
WO
0
13
28
WO
0
12
27
WO
0
11
26
WO
0
10
25
WO
0
9
24
WO
0
8
23
WO
0
7
22
WO
0
6
21
WO
0
© 2015 - 2018 Airoha Technology Corp.
5
20
WO
0
4
9
WO
0
3
8
WO
0
2
7
WO
0
1
16
WO
0
0
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MT2523 Series Reference Manual
Name
Type
Reset
GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
GPIO
GPIO1
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_SR0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_SR
Bitwise CLR operation of GPIO31 SR
0: Keep
1: CLR bits
30
GPIO30
GPIO30_SR
Bitwise CLR operation of GPIO30 SR
0: Keep
1: CLR bits
29
GPIO29
GPIO29_SR
Bitwise CLR operation of GPIO29 SR
0: Keep
1: CLR bits
28
GPIO28
GPIO28_SR
Bitwise CLR operation of GPIO28 SR
0: Keep
1: CLR bits
27
GPIO27
GPIO27_SR
Bitwise CLR operation of GPIO27 SR
0: Keep
1: CLR bits
26
GPIO26
GPIO26_SR
Bitwise CLR operation of GPIO26 SR
0: Keep
1: CLR bits
25
GPIO25
GPIO25_SR
Bitwise CLR operation of GPIO25 SR
0: Keep
1: CLR bits
24
GPIO24
GPIO24_SR
Bitwise CLR operation of GPIO24 SR
0: Keep
1: CLR bits
23
GPIO23
GPIO23_SR
Bitwise CLR operation of GPIO23 SR
0: Keep
1: CLR bits
22
GPIO22
GPIO22_SR
Bitwise CLR operation of GPIO22 SR
0: Keep
1: CLR bits
21
GPIO21
GPIO21_SR
Bitwise CLR operation of GPIO21 SR
0: Keep
1: CLR bits
20
GPIO20
GPIO20_SR
Bitwise CLR operation of GPIO20 SR
0: Keep
1: CLR bits
19
GPIO19
GPIO19_SR
Bitwise CLR operation of GPIO19 SR
0: Keep
1: CLR bits
18
GPIO18
GPIO18_SR
Bitwise CLR operation of GPIO18 SR
0: Keep
1: CLR bits
17
GPIO17
GPIO17_SR
Bitwise CLR operation of GPIO17 SR
0: Keep
1: CLR bits
16
GPIO16
GPIO16_SR
Bitwise CLR operation of GPIO16 SR
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
15
GPIO15
GPIO15_SR
Bitwise CLR operation of GPIO15 SR
0: Keep
1: CLR bits
14
GPIO14
GPIO14_SR
Bitwise CLR operation of GPIO14 SR
0: Keep
1: CLR bits
13
GPIO13
GPIO13_SR
Bitwise CLR operation of GPIO13 SR
0: Keep
1: CLR bits
12
GPIO12
GPIO12_SR
Bitwise CLR operation of GPIO12 SR
0: Keep
1: CLR bits
11
GPIO11
GPIO11_SR
Bitwise CLR operation of GPIO11 SR
0: Keep
1: CLR bits
10
GPIO10
GPIO10_SR
Bitwise CLR operation of GPIO10 SR
0: Keep
1: CLR bits
9
GPIO9
GPIO9_SR
Bitwise CLR operation of GPIO9 SR
0: Keep
1: CLR bits
8
GPIO8
GPIO8_SR
Bitwise CLR operation of GPIO8 SR
0: Keep
1: CLR bits
7
GPIO7
GPIO7_SR
Bitwise CLR operation of GPIO7 SR
0: Keep
1: CLR bits
6
GPIO6
GPIO6_SR
Bitwise CLR operation of GPIO6 SR
0: Keep
1: CLR bits
5
GPIO5
GPIO5_SR
Bitwise CLR operation of GPIO5 SR
0: Keep
1: CLR bits
4
GPIO4
GPIO4_SR
Bitwise CLR operation of GPIO4 SR
0: Keep
1: CLR bits
3
GPIO3
GPIO3_SR
Bitwise CLR operation of GPIO3 SR
0: Keep
1: CLR bits
2
GPIO2
GPIO2_SR
Bitwise CLR operation of GPIO2 SR
0: Keep
1: CLR bits
1
GPIO1
GPIO1_SR
Bitwise CLR operation of GPIO1 SR
0: Keep
1: CLR bits
0
GPIO0
GPIO0_SR
Bitwise CLR operation of GPIO0 SR
0: Keep
1: CLR bits
A2020710
Bit
31
GPIO_SR1
30
29
GPIO SR Control
28
27
26
25
0007FFFF
24
23
22
21
20
19
18
Name
© 2015 - 2018 Airoha Technology Corp.
17
16
GPIO
48
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MT2523 Series Reference Manual
Type
Reset
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
RW
1
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
Name
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Overview
Configures GPIO slew rate control
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_SR
SR for GPIO48
0: Disable
1: Enable
15
GPIO47
GPIO47_SR
SR for GPIO47
0: Disable
1: Enable
14
GPIO46
GPIO46_SR
SR for GPIO46
0: Disable
1: Enable
13
GPIO45
GPIO45_SR
SR for GPIO45
0: Disable
1: Enable
12
GPIO44
GPIO44_SR
SR for GPIO44
0: Disable
1: Enable
11
GPIO43
GPIO43_SR
SR for GPIO43
0: Disable
1: Enable
10
GPIO42
GPIO42_SR
SR for GPIO42
0: Disable
1: Enable
9
GPIO41
GPIO41_SR
SR for GPIO41
0: Disable
1: Enable
8
GPIO40
GPIO40_SR
SR for GPIO40
0: Disable
1: Enable
7
GPIO39
GPIO39_SR
SR for GPIO39
0: Disable
1: Enable
6
GPIO38
GPIO38_SR
SR for GPIO38
0: Disable
1: Enable
5
GPIO37
GPIO37_SR
SR for GPIO37
0: Disable
1: Enable
4
GPIO36
GPIO36_SR
SR for GPIO36
0: Disable
1: Enable
3
GPIO35
GPIO35_SR
SR for GPIO35
0: Disable
1: Enable
2
GPIO34
GPIO34_SR
SR for GPIO34
0: Disable
1: Enable
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1
GPIO33
GPIO33_SR
SR for GPIO33
0: Disable
1: Enable
0
GPIO32
GPIO32_SR
SR for GPIO32
0: Disable
1: Enable
A2020714
Bit
GPIO_SR1_SE
GPIO SR Control
T
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_SR1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_SR
Bitwise SET operation of GPIO48 SR
0: Keep
1: SET bits
15
GPIO47
GPIO47_SR
Bitwise SET operation of GPIO47 SR
0: Keep
1: SET bits
14
GPIO46
GPIO46_SR
Bitwise SET operation of GPIO46 SR
0: Keep
1: SET bits
13
GPIO45
GPIO45_SR
Bitwise SET operation of GPIO45 SR
0: Keep
1: SET bits
12
GPIO44
GPIO44_SR
Bitwise SET operation of GPIO44 SR
0: Keep
1: SET bits
11
GPIO43
GPIO43_SR
Bitwise SET operation of GPIO43 SR
0: Keep
1: SET bits
10
GPIO42
GPIO42_SR
Bitwise SET operation of GPIO42 SR
0: Keep
1: SET bits
9
GPIO41
GPIO41_SR
Bitwise SET operation of GPIO41 SR
0: Keep
1: SET bits
8
GPIO40
GPIO40_SR
Bitwise SET operation of GPIO40 SR
0: Keep
1: SET bits
7
GPIO39
GPIO39_SR
Bitwise SET operation of GPIO39 SR
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
6
GPIO38
GPIO38_SR
Bitwise SET operation of GPIO38 SR
0: Keep
1: SET bits
5
GPIO37
GPIO37_SR
Bitwise SET operation of GPIO37 SR
0: Keep
1: SET bits
4
GPIO36
GPIO36_SR
Bitwise SET operation of GPIO36 SR
0: Keep
1: SET bits
3
GPIO35
GPIO35_SR
Bitwise SET operation of GPIO35 SR
0: Keep
1: SET bits
2
GPIO34
GPIO34_SR
Bitwise SET operation of GPIO34 SR
0: Keep
1: SET bits
1
GPIO33
GPIO33_SR
Bitwise SET operation of GPIO33 SR
0: Keep
1: SET bits
0
GPIO32
GPIO32_SR
Bitwise SET operation of GPIO32 SR
0: Keep
1: SET bits
A2020718
Bit
GPIO_SR1_CL
GPIO SR Control
R
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_SR1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_SR
Bitwise CLR operation of GPIO48 SR
0: Keep
1: CLR bits
15
GPIO47
GPIO47_SR
Bitwise CLR operation of GPIO47 SR
0: Keep
1: CLR bits
14
GPIO46
GPIO46_SR
Bitwise CLR operation of GPIO46 SR
0: Keep
1: CLR bits
13
GPIO45
GPIO45_SR
Bitwise CLR operation of GPIO45 SR
0: Keep
1: CLR bits
12
GPIO44
GPIO44_SR
Bitwise CLR operation of GPIO44 SR
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
11
GPIO43
GPIO43_SR
Bitwise CLR operation of GPIO43 SR
0: Keep
1: CLR bits
10
GPIO42
GPIO42_SR
Bitwise CLR operation of GPIO42 SR
0: Keep
1: CLR bits
9
GPIO41
GPIO41_SR
Bitwise CLR operation of GPIO41 SR
0: Keep
1: CLR bits
8
GPIO40
GPIO40_SR
Bitwise CLR operation of GPIO40 SR
0: Keep
1: CLR bits
7
GPIO39
GPIO39_SR
Bitwise CLR operation of GPIO39 SR
0: Keep
1: CLR bits
6
GPIO38
GPIO38_SR
Bitwise CLR operation of GPIO38 SR
0: Keep
1: CLR bits
5
GPIO37
GPIO37_SR
Bitwise CLR operation of GPIO37 SR
0: Keep
1: CLR bits
4
GPIO36
GPIO36_SR
Bitwise CLR operation of GPIO36 SR
0: Keep
1: CLR bits
3
GPIO35
GPIO35_SR
Bitwise CLR operation of GPIO35 SR
0: Keep
1: CLR bits
2
GPIO34
GPIO34_SR
Bitwise CLR operation of GPIO34 SR
0: Keep
1: CLR bits
1
GPIO33
GPIO33_SR
Bitwise CLR operation of GPIO33 SR
0: Keep
1: CLR bits
0
GPIO32
GPIO32_SR
Bitwise CLR operation of GPIO32 SR
0: Keep
1: CLR bits
A2020800 GPIO_DRV0
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO DRV Control
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO15
RW
0
0
GPIO7
RW
0
0
GPIO14
RW
0
0
GPIO6
RW
0
0
GPIO13
RW
0
0
GPIO5
RW
0
0
GPIO12
RW
0
0
GPIO4
RW
0
0
GPIO11
RW
0
0
GPIO3
RW
0
0
GPIO10
RW
0
0
GPIO2
RW
0
0
GPIO9
RW
0
0
GPIO1
RW
0
0
GPIO8
RW
0
0
GPIO0
RW
0
0
Configures GPIO driving control
Bit(s) Mnemonic Name
Description
31:30 GPIO15
GPIO15_DRV
GPIO15 driving control
29:28 GPIO14
GPIO14_DRV
GPIO14 driving control
27:26 GPIO13
GPIO13_DRV
GPIO13 driving control
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
25:24 GPIO12
GPIO12_DRV
GPIO12 driving control
23:22 GPIO11
GPIO11_DRV
GPIO11 driving control
21:20 GPIO10
GPIO10_DRV
GPIO10 driving control
19:18 GPIO9
GPIO9_DRV
GPIO9 driving control
17:16 GPIO8
GPIO8_DRV
GPIO8 driving control
15:14 GPIO7
GPIO7_DRV
GPIO7 driving control
13:12 GPIO6
GPIO6_DRV
GPIO6 driving control
11:10 GPIO5
GPIO5_DRV
GPIO5 driving control
9:8
GPIO4
GPIO4_DRV
GPIO4 driving control
7:6
GPIO3
GPIO3_DRV
GPIO3 driving control
5:4
GPIO2
GPIO2_DRV
GPIO2 driving control
3:2
GPIO1
GPIO1_DRV
GPIO1 driving control
1:0
GPIO0
GPIO0_DRV
GPIO0 driving control
A2020804
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_DRV0_S
GPIO DRV Control
ET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO15
WO
0
0
GPIO7
WO
0
0
GPIO14
WO
0
0
GPIO6
WO
0
0
GPIO13
WO
0
0
GPIO5
WO
0
0
GPIO12
WO
0
0
GPIO4
WO
0
0
GPIO11
WO
0
0
GPIO3
WO
0
0
GPIO10
WO
0
0
GPIO2
WO
0
0
GPIO9
WO
0
0
GPIO1
WO
0
0
GPIO8
WO
0
0
GPIO0
WO
0
0
For bitwise access of GPIO_DRV0
Bit(s) Mnemonic Name
Description
31:30 GPIO15
GPIO15_DRV
Bitwise SET operation of GPIO15_DRV
0: Keep
1: SET bits
29:28 GPIO14
GPIO14_DRV
Bitwise SET operation of GPIO14_DRV
0: Keep
1: SET bits
27:26 GPIO13
GPIO13_DRV
Bitwise SET operation of GPIO13_DRV
0: Keep
1: SET bits
25:24 GPIO12
GPIO12_DRV
Bitwise SET operation of GPIO12_DRV
0: Keep
1: SET bits
23:22 GPIO11
GPIO11_DRV
Bitwise SET operation of GPIO11_DRV
0: Keep
1: SET bits
21:20 GPIO10
GPIO10_DRV
Bitwise SET operation of GPIO10_DRV
0: Keep
1: SET bits
19:18 GPIO9
GPIO9_DRV
Bitwise SET operation of GPIO9_DRV
0: Keep
1: SET bits
17:16 GPIO8
GPIO8_DRV
Bitwise SET operation of GPIO8_DRV
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: SET bits
15:14 GPIO7
GPIO7_DRV
Bitwise SET operation of GPIO7_DRV
0: Keep
1: SET bits
13:12 GPIO6
GPIO6_DRV
Bitwise SET operation of GPIO6_DRV
0: Keep
1: SET bits
11:10 GPIO5
GPIO5_DRV
Bitwise SET operation of GPIO5_DRV
0: Keep
1: SET bits
9:8
GPIO4
GPIO4_DRV
Bitwise SET operation of GPIO4_DRV
0: Keep
1: SET bits
7:6
GPIO3
GPIO3_DRV
Bitwise SET operation of GPIO3_DRV
0: Keep
1: SET bits
5:4
GPIO2
GPIO2_DRV
Bitwise SET operation of GPIO2_DRV
0: Keep
1: SET bits
3:2
GPIO1
GPIO1_DRV
Bitwise SET operation of GPIO1_DRV
0: Keep
1: SET bits
1:0
GPIO0
GPIO0_DRV
Bitwise SET operation of GPIO0_DRV
0: Keep
1: SET bits
A2020808
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_DRV0_C
GPIO DRV Control
LR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO15
WO
0
0
GPIO7
WO
0
0
GPIO14
WO
0
0
GPIO6
WO
0
0
GPIO13
WO
0
0
GPIO5
WO
0
0
GPIO12
WO
0
0
GPIO4
WO
0
0
GPIO11
WO
0
0
GPIO3
WO
0
0
GPIO10
WO
0
0
GPIO2
WO
0
0
GPIO9
WO
0
0
GPIO1
WO
0
0
GPIO8
WO
0
0
GPIO0
WO
0
0
For bitwise access of GPIO_DRV0
Bit(s) Mnemonic Name
Description
31:30 GPIO15
GPIO15_DRV
Bitwise CLR operation of GPIO15_DRV
0: Keep
1: CLR bits
29:28 GPIO14
GPIO14_DRV
Bitwise CLR operation of GPIO14_DRV
0: Keep
1: CLR bits
27:26 GPIO13
GPIO13_DRV
Bitwise CLR operation of GPIO13_DRV
0: Keep
1: CLR bits
25:24 GPIO12
GPIO12_DRV
Bitwise CLR operation of GPIO12_DRV
0: Keep
1: CLR bits
23:22 GPIO11
GPIO11_DRV
Bitwise CLR operation of GPIO11_DRV
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: CLR bits
21:20 GPIO10
GPIO10_DRV
Bitwise CLR operation of GPIO10_DRV
0: Keep
1: CLR bits
19:18 GPIO9
GPIO9_DRV
Bitwise CLR operation of GPIO9_DRV
0: Keep
1: CLR bits
17:16 GPIO8
GPIO8_DRV
Bitwise CLR operation of GPIO8_DRV
0: Keep
1: CLR bits
15:14 GPIO7
GPIO7_DRV
Bitwise CLR operation of GPIO7_DRV
0: Keep
1: CLR bits
13:12 GPIO6
GPIO6_DRV
Bitwise CLR operation of GPIO6_DRV
0: Keep
1: CLR bits
11:10 GPIO5
GPIO5_DRV
Bitwise CLR operation of GPIO5_DRV
0: Keep
1: CLR bits
9:8
GPIO4
GPIO4_DRV
Bitwise CLR operation of GPIO4_DRV
0: Keep
1: CLR bits
7:6
GPIO3
GPIO3_DRV
Bitwise CLR operation of GPIO3_DRV
0: Keep
1: CLR bits
5:4
GPIO2
GPIO2_DRV
Bitwise CLR operation of GPIO2_DRV
0: Keep
1: CLR bits
3:2
GPIO1
GPIO1_DRV
Bitwise CLR operation of GPIO1_DRV
0: Keep
1: CLR bits
1:0
GPIO0
GPIO0_DRV
Bitwise CLR operation of GPIO0_DRV
0: Keep
1: CLR bits
A2020810
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_DRV1
GPIO DRV Control
31
30
29
28
27
26
15
14
13
12
11
10
GPIO31
RW
0
0
GPIO23
RW
0
0
GPIO30
RW
0
0
GPIO22
RW
0
0
GPIO29
RW
0
0
GPIO21
RW
0
0
00000000
25
24
23
22
21
20
19
18
9
8
7
6
5
4
3
2
GPIO28
RW
0
0
GPIO20
RW
0
0
GPIO27
RW
0
0
GPIO19
RW
0
0
GPIO26
RW
0
0
GPIO18
RW
0
0
GPIO25
RW
0
0
GPIO17
RW
0
0
17
16
1
0
GPIO24
RW
0
0
GPIO16
RW
0
0
Configures GPIO driving control
Bit(s) Mnemonic Name
Description
31:30 GPIO31
GPIO31_DRV
GPIO31 driving control
29:28 GPIO30
GPIO30_DRV
GPIO30 driving control
27:26 GPIO29
GPIO29_DRV
GPIO29 driving control
25:24 GPIO28
GPIO28_DRV
GPIO28 driving control
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
23:22 GPIO27
GPIO27_DRV
GPIO27 driving control
21:20 GPIO26
GPIO26_DRV
GPIO26 driving control
19:18 GPIO25
GPIO25_DRV
GPIO25 driving control
17:16 GPIO24
GPIO24_DRV
GPIO24 driving control
15:14 GPIO23
GPIO23_DRV
GPIO23 driving control
13:12 GPIO22
GPIO22_DRV
GPIO22 driving control
11:10 GPIO21
GPIO21_DRV
GPIO21 driving control
9:8
GPIO20
GPIO20_DRV
GPIO20 driving control
7:6
GPIO19
GPIO19_DRV
GPIO19 driving control
5:4
GPIO18
GPIO18_DRV
GPIO18 driving control
3:2
GPIO17
GPIO17_DRV
GPIO17 driving control
1:0
GPIO16
GPIO16_DRV
GPIO16 driving control
A2020814
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_DRV1_S
GPIO DRV Control
ET
31
30
29
28
27
26
15
14
13
12
11
10
GPIO31
WO
0
0
GPIO23
WO
0
0
GPIO30
WO
0
0
GPIO22
WO
0
0
GPIO29
WO
0
0
GPIO21
WO
0
0
00000000
25
24
23
22
21
20
19
18
9
8
7
6
5
4
3
2
GPIO28
WO
0
0
GPIO20
WO
0
0
GPIO27
WO
0
0
GPIO19
WO
0
0
GPIO26
WO
0
0
GPIO18
WO
0
0
GPIO25
WO
0
0
GPIO17
WO
0
0
17
16
1
0
GPIO24
WO
0
0
GPIO16
WO
0
0
For bitwise access of GPIO_DRV1
Bit(s) Mnemonic Name
Description
31:30 GPIO31
GPIO31_DRV
Bitwise SET operation of GPIO31_DRV
0: Keep
1: SET bits
29:28 GPIO30
GPIO30_DRV
Bitwise SET operation of GPIO30_DRV
0: Keep
1: SET bits
27:26 GPIO29
GPIO29_DRV
Bitwise SET operation of GPIO29_DRV
0: Keep
1: SET bits
25:24 GPIO28
GPIO28_DRV
Bitwise SET operation of GPIO28_DRV
0: Keep
1: SET bits
23:22 GPIO27
GPIO27_DRV
Bitwise SET operation of GPIO27_DRV
0: Keep
1: SET bits
21:20 GPIO26
GPIO26_DRV
Bitwise SET operation of GPIO26_DRV
0: Keep
1: SET bits
19:18 GPIO25
GPIO25_DRV
Bitwise SET operation of GPIO25_DRV
0: Keep
1: SET bits
17:16 GPIO24
GPIO24_DRV
Bitwise SET operation of GPIO24_DRV
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
Page 489 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
15:14 GPIO23
GPIO23_DRV
Bitwise SET operation of GPIO23_DRV
0: Keep
1: SET bits
13:12 GPIO22
GPIO22_DRV
Bitwise SET operation of GPIO22_DRV
0: Keep
1: SET bits
11:10 GPIO21
GPIO21_DRV
Bitwise SET operation of GPIO21_DRV
0: Keep
1: SET bits
9:8
GPIO20
GPIO20_DRV
Bitwise SET operation of GPIO20_DRV
0: Keep
1: SET bits
7:6
GPIO19
GPIO19_DRV
Bitwise SET operation of GPIO19_DRV
0: Keep
1: SET bits
5:4
GPIO18
GPIO18_DRV
Bitwise SET operation of GPIO18_DRV
0: Keep
1: SET bits
3:2
GPIO17
GPIO17_DRV
Bitwise SET operation of GPIO17_DRV
0: Keep
1: SET bits
1:0
GPIO16
GPIO16_DRV
Bitwise SET operation of GPIO16_DRV
0: Keep
1: SET bits
A2020818
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_DRV1_C
GPIO DRV Control
LR
31
30
29
28
27
26
15
14
13
12
11
10
GPIO31
WO
0
0
GPIO23
WO
0
0
GPIO30
WO
0
0
GPIO22
WO
0
0
GPIO29
WO
0
0
GPIO21
WO
0
0
00000000
25
24
23
22
21
20
19
18
9
8
7
6
5
4
3
2
GPIO28
WO
0
0
GPIO20
WO
0
0
GPIO27
WO
0
0
GPIO19
WO
0
0
GPIO26
WO
0
0
GPIO18
WO
0
0
GPIO25
WO
0
0
GPIO17
WO
0
0
17
16
1
0
GPIO24
WO
0
0
GPIO16
WO
0
0
For bitwise access of GPIO_DRV1
Bit(s) Mnemonic Name
Description
31:30 GPIO31
GPIO31_DRV
Bitwise CLR operation of GPIO31_DRV
0: Keep
1: CLR bits
29:28 GPIO30
GPIO30_DRV
Bitwise CLR operation of GPIO30_DRV
0: Keep
1: CLR bits
27:26 GPIO29
GPIO29_DRV
Bitwise CLR operation of GPIO29_DRV
0: Keep
1: CLR bits
25:24 GPIO28
GPIO28_DRV
Bitwise CLR operation of GPIO28_DRV
0: Keep
1: CLR bits
23:22 GPIO27
GPIO27_DRV
Bitwise CLR operation of GPIO27_DRV
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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This document contains information that is proprietary to Airoha Technology Corp. (“Airoha”) and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
21:20 GPIO26
GPIO26_DRV
Bitwise CLR operation of GPIO26_DRV
0: Keep
1: CLR bits
19:18 GPIO25
GPIO25_DRV
Bitwise CLR operation of GPIO25_DRV
0: Keep
1: CLR bits
17:16 GPIO24
GPIO24_DRV
Bitwise CLR operation of GPIO24_DRV
0: Keep
1: CLR bits
15:14 GPIO23
GPIO23_DRV
Bitwise CLR operation of GPIO23_DRV
0: Keep
1: CLR bits
13:12 GPIO22
GPIO22_DRV
Bitwise CLR operation of GPIO22_DRV
0: Keep
1: CLR bits
11:10 GPIO21
GPIO21_DRV
Bitwise CLR operation of GPIO21_DRV
0: Keep
1: CLR bits
9:8
GPIO20
GPIO20_DRV
Bitwise CLR operation of GPIO20_DRV
0: Keep
1: CLR bits
7:6
GPIO19
GPIO19_DRV
Bitwise CLR operation of GPIO19_DRV
0: Keep
1: CLR bits
5:4
GPIO18
GPIO18_DRV
Bitwise CLR operation of GPIO18_DRV
0: Keep
1: CLR bits
3:2
GPIO17
GPIO17_DRV
Bitwise CLR operation of GPIO17_DRV
0: Keep
1: CLR bits
1:0
GPIO16
GPIO16_DRV
Bitwise CLR operation of GPIO16_DRV
0: Keep
1: CLR bits
A2020820
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_DRV2
GPIO DRV Control
31
30
29
28
27
26
15
14
13
12
11
10
GPIO47
RW
0
0
GPIO39
RW
0
0
GPIO46
RW
0
0
GPIO38
RW
0
0
GPIO45
RW
0
0
GPIO37
RW
0
0
25
24
9
8
GPIO44
RW
0
0
GPIO36
RW
0
0
00000000
23
22
7
6
GPIO43
RW
0
0
GPIO35
RW
0
0
21
20
5
4
GPIO42
RW
0
0
GPIO34
RW
0
0
19
18
3
2
GPIO41
RW
0
0
GPIO33
RW
0
0
17
16
1
0
GPIO40
RW
0
0
GPIO32
RW
0
0
Configures GPIO driving control
Bit(s) Mnemonic Name
Description
31:30 GPIO47
GPIO47_DRV
GPIO47 driving control
29:28 GPIO46
GPIO46_DRV
GPIO46 driving control
27:26 GPIO45
GPIO45_DRV
GPIO45 driving control
25:24 GPIO44
GPIO44_DRV
GPIO44 driving control
© 2015 - 2018 Airoha Technology Corp.
Page 491 of 692
This document contains information that is proprietary to Airoha Technology Corp. (“Airoha”) and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
23:22 GPIO43
GPIO43_DRV
GPIO43 driving control
21:20 GPIO42
GPIO42_DRV
GPIO42 driving control
19:18 GPIO41
GPIO41_DRV
GPIO41 driving control
17:16 GPIO40
GPIO40_DRV
GPIO40 driving control
15:14 GPIO39
GPIO39_DRV
GPIO39 driving control
13:12 GPIO38
GPIO38_DRV
GPIO38 driving control
11:10 GPIO37
GPIO37_DRV
GPIO37 driving control
9:8
GPIO36
GPIO36_DRV
GPIO36 driving control
7:6
GPIO35
GPIO35_DRV
GPIO35 driving control
5:4
GPIO34
GPIO34_DRV
GPIO34 driving control
3:2
GPIO33
GPIO33_DRV
GPIO33 driving control
1:0
GPIO32
GPIO32_DRV
GPIO32 driving control
A2020824
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_DRV2_S
GPIO DRV Control
ET
31
30
29
28
27
26
15
14
13
12
11
10
GPIO47
WO
0
0
GPIO39
WO
0
0
GPIO46
WO
0
0
GPIO38
WO
0
0
GPIO45
WO
0
0
GPIO37
WO
0
0
25
24
9
8
GPIO44
WO
0
0
GPIO36
WO
0
0
00000000
23
22
7
6
GPIO43
WO
0
0
GPIO35
WO
0
0
21
20
5
4
GPIO42
WO
0
0
GPIO34
WO
0
0
19
18
3
2
GPIO41
WO
0
0
GPIO33
WO
0
0
17
16
1
0
GPIO40
WO
0
0
GPIO32
WO
0
0
For bitwise access of GPIO_DRV2
Bit(s) Mnemonic Name
Description
31:30 GPIO47
GPIO47_DRV
Bitwise SET operation of GPIO47_DRV
0: Keep
1: SET bits
29:28 GPIO46
GPIO46_DRV
Bitwise SET operation of GPIO46_DRV
0: Keep
1: SET bits
27:26 GPIO45
GPIO45_DRV
Bitwise SET operation of GPIO45_DRV
0: Keep
1: SET bits
25:24 GPIO44
GPIO44_DRV
Bitwise SET operation of GPIO44_DRV
0: Keep
1: SET bits
23:22 GPIO43
GPIO43_DRV
Bitwise SET operation of GPIO43_DRV
0: Keep
1: SET bits
21:20 GPIO42
GPIO42_DRV
Bitwise SET operation of GPIO42_DRV
0: Keep
1: SET bits
19:18 GPIO41
GPIO41_DRV
Bitwise SET operation of GPIO41_DRV
0: Keep
1: SET bits
17:16 GPIO40
GPIO40_DRV
Bitwise SET operation of GPIO40_DRV
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
Page 492 of 692
This document contains information that is proprietary to Airoha Technology Corp. (“Airoha”) and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
15:14 GPIO39
GPIO39_DRV
Bitwise SET operation of GPIO39_DRV
0: Keep
1: SET bits
13:12 GPIO38
GPIO38_DRV
Bitwise SET operation of GPIO38_DRV
0: Keep
1: SET bits
11:10 GPIO37
GPIO37_DRV
Bitwise SET operation of GPIO37_DRV
0: Keep
1: SET bits
9:8
GPIO36
GPIO36_DRV
Bitwise SET operation of GPIO36_DRV
0: Keep
1: SET bits
7:6
GPIO35
GPIO35_DRV
Bitwise SET operation of GPIO35_DRV
0: Keep
1: SET bits
5:4
GPIO34
GPIO34_DRV
Bitwise SET operation of GPIO34_DRV
0: Keep
1: SET bits
3:2
GPIO33
GPIO33_DRV
Bitwise SET operation of GPIO33_DRV
0: Keep
1: SET bits
1:0
GPIO32
GPIO32_DRV
Bitwise SET operation of GPIO32_DRV
0: Keep
1: SET bits
A2020828
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_DRV2_C
GPIO DRV Control
LR
31
30
29
28
27
26
15
14
13
12
11
10
GPIO47
WO
0
0
GPIO39
WO
0
0
GPIO46
WO
0
0
GPIO38
WO
0
0
GPIO45
WO
0
0
GPIO37
WO
0
0
25
24
9
8
GPIO44
WO
0
0
GPIO36
WO
0
0
00000000
23
22
7
6
GPIO43
WO
0
0
GPIO35
WO
0
0
21
20
5
4
GPIO42
WO
0
0
GPIO34
WO
0
0
19
18
3
2
GPIO41
WO
0
0
GPIO33
WO
0
0
17
16
1
0
GPIO40
WO
0
0
GPIO32
WO
0
0
For bitwise access of GPIO_DRV2
Bit(s) Mnemonic Name
Description
31:30 GPIO47
GPIO47_DRV
Bitwise CLR operation of GPIO47_DRV
0: Keep
1: CLR bits
29:28 GPIO46
GPIO46_DRV
Bitwise CLR operation of GPIO46_DRV
0: Keep
1: CLR bits
27:26 GPIO45
GPIO45_DRV
Bitwise CLR operation of GPIO45_DRV
0: Keep
1: CLR bits
25:24 GPIO44
GPIO44_DRV
Bitwise CLR operation of GPIO44_DRV
0: Keep
1: CLR bits
23:22 GPIO43
GPIO43_DRV
Bitwise CLR operation of GPIO43_DRV
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
21:20 GPIO42
GPIO42_DRV
Bitwise CLR operation of GPIO42_DRV
0: Keep
1: CLR bits
19:18 GPIO41
GPIO41_DRV
Bitwise CLR operation of GPIO41_DRV
0: Keep
1: CLR bits
17:16 GPIO40
GPIO40_DRV
Bitwise CLR operation of GPIO40_DRV
0: Keep
1: CLR bits
15:14 GPIO39
GPIO39_DRV
Bitwise CLR operation of GPIO39_DRV
0: Keep
1: CLR bits
13:12 GPIO38
GPIO38_DRV
Bitwise CLR operation of GPIO38_DRV
0: Keep
1: CLR bits
11:10 GPIO37
GPIO37_DRV
Bitwise CLR operation of GPIO37_DRV
0: Keep
1: CLR bits
9:8
GPIO36
GPIO36_DRV
Bitwise CLR operation of GPIO36_DRV
0: Keep
1: CLR bits
7:6
GPIO35
GPIO35_DRV
Bitwise CLR operation of GPIO35_DRV
0: Keep
1: CLR bits
5:4
GPIO34
GPIO34_DRV
Bitwise CLR operation of GPIO34_DRV
0: Keep
1: CLR bits
3:2
GPIO33
GPIO33_DRV
Bitwise CLR operation of GPIO33_DRV
0: Keep
1: CLR bits
1:0
GPIO32
GPIO32_DRV
Bitwise CLR operation of GPIO32_DRV
0: Keep
1: CLR bits
A2020830
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPIO_DRV3
GPIO DRV Control
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Overview
17
16
1
0
GPIO48
RW
0
0
Configures GPIO driving control
Bit(s) Mnemonic Name
1:0
00000000
31
GPIO48
A2020834
GPIO48_DRV
Description
GPIO48 driving control
GPIO_DRV3_S GPIO DRV Control
© 2015 - 2018 Airoha Technology Corp.
00000000
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MT2523 Series Reference Manual
ET
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Overview
GPIO48
A2020838
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bitwise SET operation of GPIO48_DRV
0: Keep
1: SET bits
GPIO48_DRV
GPIO_DRV3_C
GPIO DRV Control
LR
Type
Reset
Bit
00000000
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
17
16
1
0
GPIO48
WO
0
0
For bitwise access of GPIO_DRV3
GPIO48
Description
Bitwise CLR operation of GPIO48_DRV
0: Keep
1: CLR bits
GPIO48_DRV
A2020900 GPIO_IES0
Bit
0
Description
Bit(s) Mnemonic Name
Name
1
GPIO48
WO
0
0
31
Overview
1:0
16
For bitwise access of GPIO_DRV3
Bit(s) Mnemonic Name
1:0
17
GPIO IES Control
FFFFFFFF
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
GPIO
Name
GPIO1
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Overview
Configures GPIO input enabling control
Note that the GPIO_DIN value is meaningless once GPIO_IES is enabled.
Bit(s) Mnemonic Name
31
GPIO31
GPIO31_IES
Description
Input buffer for GPIO31_IES
0: Disable
1: Enable
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
30
GPIO30
GPIO30_IES
Input buffer for GPIO30_IES
0: Disable
1: Enable
29
GPIO29
GPIO29_IES
Input buffer for GPIO29_IES
0: Disable
1: Enable
28
GPIO28
GPIO28_IES
Input buffer for GPIO28_IES
0: Disable
1: Enable
27
GPIO27
GPIO27_IES
Input buffer for GPIO27_IES
0: Disable
1: Enable
26
GPIO26
GPIO26_IES
Input buffer for GPIO26_IES
0: Disable
1: Enable
25
GPIO25
GPIO25_IES
Input buffer for GPIO25_IES
0: Disable
1: Enable
24
GPIO24
GPIO24_IES
Input buffer for GPIO24_IES
0: Disable
1: Enable
23
GPIO23
GPIO23_IES
Input buffer for GPIO23_IES
0: Disable
1: Enable
22
GPIO22
GPIO22_IES
Input buffer for GPIO22_IES
0: Disable
1: Enable
21
GPIO21
GPIO21_IES
Input buffer for GPIO21_IES
0: Disable
1: Enable
20
GPIO20
GPIO20_IES
Input buffer for GPIO20_IES
0: Disable
1: Enable
19
GPIO19
GPIO19_IES
Input buffer for GPIO19_IES
0: Disable
1: Enable
18
GPIO18
GPIO18_IES
Input buffer for GPIO18_IES
0: Disable
1: Enable
17
GPIO17
GPIO17_IES
Input buffer for GPIO17_IES
0: Disable
1: Enable
16
GPIO16
GPIO16_IES
Input buffer for GPIO16_IES
0: Disable
1: Enable
15
GPIO15
GPIO15_IES
Input buffer for GPIO15_IES
0: Disable
1: Enable
14
GPIO14
GPIO14_IES
Input buffer for GPIO14_IES
0: Disable
1: Enable
13
GPIO13
GPIO13_IES
Input buffer for GPIO13_IES
0: Disable
1: Enable
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
12
GPIO12
GPIO12_IES
Input buffer for GPIO12_IES
0: Disable
1: Enable
11
GPIO11
GPIO11_IES
Input buffer for GPIO11_IES
0: Disable
1: Enable
10
GPIO10
GPIO10_IES
Input buffer for GPIO10_IES
0: Disable
1: Enable
9
GPIO9
GPIO9_IES
Input buffer for GPIO9_IES
0: Disable
1: Enable
8
GPIO8
GPIO8_IES
Input buffer for GPIO8_IES
0: Disable
1: Enable
7
GPIO7
GPIO7_IES
Input buffer for GPIO7_IES
0: Disable
1: Enable
6
GPIO6
GPIO6_IES
Input buffer for GPIO6_IES
0: Disable
1: Enable
5
GPIO5
GPIO5_IES
Input buffer for GPIO5_IES
0: Disable
1: Enable
4
GPIO4
GPIO4_IES
Input buffer for GPIO4_IES
0: Disable
1: Enable
3
GPIO3
GPIO3_IES
Input buffer for GPIO3_IES
0: Disable
1: Enable
2
GPIO2
GPIO2_IES
Input buffer for GPIO2_IES
0: Disable
1: Enable
1
GPIO1
GPIO1_IES
Input buffer for GPIO1_IES
0: Disable
1: Enable
0
GPIO0
GPIO0_IES
Input buffer for GPIO0_IES
0: Disable
1: Enable
A2020904
GPIO_IES0_SE
GPIO IES Control
T
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_IES0
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Note that the GPIO_DIN value is meaningless once is GPIO_IES enabled.
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_IES
Bitwise SET operation of GPIO31 input buffer
0: Keep
1: SET bits
30
GPIO30
GPIO30_IES
Bitwise SET operation of GPIO30 input buffer
0: Keep
1: SET bits
29
GPIO29
GPIO29_IES
Bitwise SET operation of GPIO29 input buffer
0: Keep
1: SET bits
28
GPIO28
GPIO28_IES
Bitwise SET operation of GPIO28 input buffer
0: Keep
1: SET bits
27
GPIO27
GPIO27_IES
Bitwise SET operation of GPIO27 input buffer
0: Keep
1: SET bits
26
GPIO26
GPIO26_IES
Bitwise SET operation of GPIO26 input buffer
0: Keep
1: SET bits
25
GPIO25
GPIO25_IES
Bitwise SET operation of GPIO25 input buffer
0: Keep
1: SET bits
24
GPIO24
GPIO24_IES
Bitwise SET operation of GPIO24 input buffer
0: Keep
1: SET bits
23
GPIO23
GPIO23_IES
Bitwise SET operation of GPIO23 input buffer
0: Keep
1: SET bits
22
GPIO22
GPIO22_IES
Bitwise SET operation of GPIO22 input buffer
0: Keep
1: SET bits
21
GPIO21
GPIO21_IES
Bitwise SET operation of GPIO21 input buffer
0: Keep
1: SET bits
20
GPIO20
GPIO20_IES
Bitwise SET operation of GPIO20 input buffer
0: Keep
1: SET bits
19
GPIO19
GPIO19_IES
Bitwise SET operation of GPIO19 input buffer
0: Keep
1: SET bits
18
GPIO18
GPIO18_IES
Bitwise SET operation of GPIO18 input buffer
0: Keep
1: SET bits
17
GPIO17
GPIO17_IES
Bitwise SET operation of GPIO17 input buffer
0: Keep
1: SET bits
16
GPIO16
GPIO16_IES
Bitwise SET operation of GPIO16 input buffer
0: Keep
1: SET bits
15
GPIO15
GPIO15_IES
Bitwise SET operation of GPIO15 input buffer
0: Keep
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: SET bits
14
GPIO14
GPIO14_IES
Bitwise SET operation of GPIO14 input buffer
0: Keep
1: SET bits
13
GPIO13
GPIO13_IES
Bitwise SET operation of GPIO13 input buffer
0: Keep
1: SET bits
12
GPIO12
GPIO12_IES
Bitwise SET operation of GPIO12 input buffer
0: Keep
1: SET bits
11
GPIO11
GPIO11_IES
Bitwise SET operation of GPIO11 input buffer
0: Keep
1: SET bits
10
GPIO10
GPIO10_IES
Bitwise SET operation of GPIO10 input buffer
0: Keep
1: SET bits
9
GPIO9
GPIO9_IES
Bitwise SET operation of GPIO9 input buffer
0: Keep
1: SET bits
8
GPIO8
GPIO8_IES
Bitwise SET operation of GPIO8 input buffer
0: Keep
1: SET bits
7
GPIO7
GPIO7_IES
Bitwise SET operation of GPIO7 input buffer
0: Keep
1: SET bits
6
GPIO6
GPIO6_IES
Bitwise SET operation of GPIO6 input buffer
0: Keep
1: SET bits
5
GPIO5
GPIO5_IES
Bitwise SET operation of GPIO5 input buffer
0: Keep
1: SET bits
4
GPIO4
GPIO4_IES
Bitwise SET operation of GPIO4 input buffer
0: Keep
1: SET bits
3
GPIO3
GPIO3_IES
Bitwise SET operation of GPIO3 input buffer
0: Keep
1: SET bits
2
GPIO2
GPIO2_IES
Bitwise SET operation of GPIO2 input buffer
0: Keep
1: SET bits
1
GPIO1
GPIO1_IES
Bitwise SET operation of GPIO1 input buffer
0: Keep
1: SET bits
0
GPIO0
GPIO0_IES
Bitwise SET operation of GPIO0 input buffer
0: Keep
1: SET bits
A2020908
Bit
31
GPIO_IES0_C
GPIO IES Control
LR
30
29
28
27
26
25
24
00000000
23
22
21
20
19
18
17
16
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
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MT2523 Series Reference Manual
Reset
Bit
Name
Type
Reset
0
0
15
14
0
13
0
12
0
11
0
10
0
9
0
8
0
7
0
6
0
5
0
4
0
3
0
0
2
1
0
0
GPIO GPIO1 GPIO1 GPIO1 GPIO1 GPIO1 GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
GPIO
GPIO1
15
4
3
2
1
0
9
8
7
6
5
4
3
2
0
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_IES0
Note that the GPIO_DIN value is meaningless once GPIO_IES is enabled.
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_IES
Bitwise CLR operation of GPIO31 input buffer
0: Keep
1: CLR bits
30
GPIO30
GPIO30_IES
Bitwise CLR operation of GPIO30 input buffer
0: Keep
1: CLR bits
29
GPIO29
GPIO29_IES
Bitwise CLR operation of GPIO29 input buffer
0: Keep
1: CLR bits
28
GPIO28
GPIO28_IES
Bitwise CLR operation of GPIO28 input buffer
0: Keep
1: CLR bits
27
GPIO27
GPIO27_IES
Bitwise CLR operation of GPIO27 input buffer
0: Keep
1: CLR bits
26
GPIO26
GPIO26_IES
Bitwise CLR operation of GPIO26 input buffer
0: Keep
1: CLR bits
25
GPIO25
GPIO25_IES
Bitwise CLR operation of GPIO25 input buffer
0: Keep
1: CLR bits
24
GPIO24
GPIO24_IES
Bitwise CLR operation of GPIO24 input buffer
0: Keep
1: CLR bits
23
GPIO23
GPIO23_IES
Bitwise CLR operation of GPIO23 input buffer
0: Keep
1: CLR bits
22
GPIO22
GPIO22_IES
Bitwise CLR operation of GPIO22 input buffer
0: Keep
1: CLR bits
21
GPIO21
GPIO21_IES
Bitwise CLR operation of GPIO21 input buffer
0: Keep
1: CLR bits
20
GPIO20
GPIO20_IES
Bitwise CLR operation of GPIO20 input buffer
0: Keep
1: CLR bits
19
GPIO19
GPIO19_IES
Bitwise CLR operation of GPIO19 input buffer
0: Keep
1: CLR bits
18
GPIO18
GPIO18_IES
Bitwise CLR operation of GPIO18 input buffer
0: Keep
1: CLR bits
17
GPIO17
GPIO17_IES
Bitwise CLR operation of GPIO17 input buffer
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: CLR bits
16
GPIO16
GPIO16_IES
Bitwise CLR operation of GPIO16 input buffer
0: Keep
1: CLR bits
15
GPIO15
GPIO15_IES
Bitwise CLR operation of GPIO15 input buffer
0: Keep
1: CLR bits
14
GPIO14
GPIO14_IES
Bitwise CLR operation of GPIO14 input buffer
0: Keep
1: CLR bits
13
GPIO13
GPIO13_IES
Bitwise CLR operation of GPIO13 input buffer
0: Keep
1: CLR bits
12
GPIO12
GPIO12_IES
Bitwise CLR operation of GPIO12 input buffer
0: Keep
1: CLR bits
11
GPIO11
GPIO11_IES
Bitwise CLR operation of GPIO11 input buffer
0: Keep
1: CLR bits
10
GPIO10
GPIO10_IES
Bitwise CLR operation of GPIO10 input buffer
0: Keep
1: CLR bits
9
GPIO9
GPIO9_IES
Bitwise CLR operation of GPIO9 input buffer
0: Keep
1: CLR bits
8
GPIO8
GPIO8_IES
Bitwise CLR operation of GPIO8 input buffer
0: Keep
1: CLR bits
7
GPIO7
GPIO7_IES
Bitwise CLR operation of GPIO7 input buffer
0: Keep
1: CLR bits
6
GPIO6
GPIO6_IES
Bitwise CLR operation of GPIO6 input buffer
0: Keep
1: CLR bits
5
GPIO5
GPIO5_IES
Bitwise CLR operation of GPIO5 input buffer
0: Keep
1: CLR bits
4
GPIO4
GPIO4_IES
Bitwise CLR operation of GPIO4 input buffer
0: Keep
1: CLR bits
3
GPIO3
GPIO3_IES
Bitwise CLR operation of GPIO3 input buffer
0: Keep
1: CLR bits
2
GPIO2
GPIO2_IES
Bitwise CLR operation of GPIO2 input buffer
0: Keep
1: CLR bits
1
GPIO1
GPIO1_IES
Bitwise CLR operation of GPIO1 input buffer
0: Keep
1: CLR bits
0
GPIO0
GPIO0_IES
Bitwise CLR operation of GPIO0 input buffer
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
A2020910
Bit
GPIO_IES1
GPIO IES Control
0007FFFF
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
RW
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
1
Overview
Configures GPIO input enabling control
Note that the GPIO_DIN value is meaningless once GPIO_IES is enabled.
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_IES
Input buffer for GPIO48_IES
0: Disable
1: Enable
15
GPIO47
GPIO47_IES
Input buffer for GPIO47_IES
0: Disable
1: Enable
14
GPIO46
GPIO46_IES
Input buffer for GPIO46_IES
0: Disable
1: Enable
13
GPIO45
GPIO45_IES
Input buffer for GPIO45_IES
0: Disable
1: Enable
12
GPIO44
GPIO44_IES
Input buffer for GPIO44_IES
0: Disable
1: Enable
11
GPIO43
GPIO43_IES
Input buffer for GPIO43_IES
0: Disable
1: Enable
10
GPIO42
GPIO42_IES
Input buffer for GPIO42_IES
0: Disable
1: Enable
9
GPIO41
GPIO41_IES
Input buffer for GPIO41_IES
0: Disable
1: Enable
8
GPIO40
GPIO40_IES
Input buffer for GPIO40_IES
0: Disable
1: Enable
7
GPIO39
GPIO39_IES
Input buffer for GPIO39_IES
0: Disable
1: Enable
6
GPIO38
GPIO38_IES
Input buffer for GPIO38_IES
0: Disable
1: Enable
5
GPIO37
GPIO37_IES
Input buffer for GPIO37_IES
0: Disable
1: Enable
4
GPIO36
GPIO36_IES
Input buffer for GPIO36_IES
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Disable
1: Enable
3
GPIO35
GPIO35_IES
Input buffer for GPIO35_IES
0: Disable
1: Enable
2
GPIO34
GPIO34_IES
Input buffer for GPIO34_IES
0: Disable
1: Enable
1
GPIO33
GPIO33_IES
Input buffer for GPIO33_IES
0: Disable
1: Enable
0
GPIO32
GPIO32_IES
Input buffer for GPIO32_IES
0: Disable
1: Enable
A2020914
Bit
GPIO_IES1_SE
GPIO IES Control
T
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
Name
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_IES1
Note that the GPIO_DIN value is meaningless once GPIO_IES is enabled.
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_IES
Bitwise SET operation of GPIO48 input buffer
0: Keep
1: SET bits
15
GPIO47
GPIO47_IES
Bitwise SET operation of GPIO47 input buffer
0: Keep
1: SET bits
14
GPIO46
GPIO46_IES
Bitwise SET operation of GPIO46 input buffer
0: Keep
1: SET bits
13
GPIO45
GPIO45_IES
Bitwise SET operation of GPIO45 input buffer
0: Keep
1: SET bits
12
GPIO44
GPIO44_IES
Bitwise SET operation of GPIO44 input buffer
0: Keep
1: SET bits
11
GPIO43
GPIO43_IES
Bitwise SET operation of GPIO43 input buffer
0: Keep
1: SET bits
10
GPIO42
GPIO42_IES
Bitwise SET operation of GPIO42 input buffer
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
9
GPIO41
GPIO41_IES
Bitwise SET operation of GPIO41 input buffer
0: Keep
1: SET bits
8
GPIO40
GPIO40_IES
Bitwise SET operation of GPIO40 input buffer
0: Keep
1: SET bits
7
GPIO39
GPIO39_IES
Bitwise SET operation of GPIO39 input buffer
0: Keep
1: SET bits
6
GPIO38
GPIO38_IES
Bitwise SET operation of GPIO38 input buffer
0: Keep
1: SET bits
5
GPIO37
GPIO37_IES
Bitwise SET operation of GPIO37 input buffer
0: Keep
1: SET bits
4
GPIO36
GPIO36_IES
Bitwise SET operation of GPIO36 input buffer
0: Keep
1: SET bits
3
GPIO35
GPIO35_IES
Bitwise SET operation of GPIO35 input buffer
0: Keep
1: SET bits
2
GPIO34
GPIO34_IES
Bitwise SET operation of GPIO34 input buffer
0: Keep
1: SET bits
1
GPIO33
GPIO33_IES
Bitwise SET operation of GPIO33 input buffer
0: Keep
1: SET bits
0
GPIO32
GPIO32_IES
Bitwise SET operation of GPIO32 input buffer
0: Keep
1: SET bits
A2020918
Bit
GPIO_IES1_CL
GPIO IES Control
R
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_IES1
Note that the GPIO_DIN value is meaningless once GPIO_IES is enabled.
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_IES
Bitwise CLR operation of GPIO48 input buffer
0: Keep
1: CLR bits
15
GPIO47
GPIO47_IES
Bitwise CLR operation of GPIO47 input buffer
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
14
GPIO46
GPIO46_IES
Bitwise CLR operation of GPIO46 input buffer
0: Keep
1: CLR bits
13
GPIO45
GPIO45_IES
Bitwise CLR operation of GPIO45 input buffer
0: Keep
1: CLR bits
12
GPIO44
GPIO44_IES
Bitwise CLR operation of GPIO44 input buffer
0: Keep
1: CLR bits
11
GPIO43
GPIO43_IES
Bitwise CLR operation of GPIO43 input buffer
0: Keep
1: CLR bits
10
GPIO42
GPIO42_IES
Bitwise CLR operation of GPIO42 input buffer
0: Keep
1: CLR bits
9
GPIO41
GPIO41_IES
Bitwise CLR operation of GPIO41 input buffer
0: Keep
1: CLR bits
8
GPIO40
GPIO40_IES
Bitwise CLR operation of GPIO40 input buffer
0: Keep
1: CLR bits
7
GPIO39
GPIO39_IES
Bitwise CLR operation of GPIO39 input buffer
0: Keep
1: CLR bits
6
GPIO38
GPIO38_IES
Bitwise CLR operation of GPIO38 input buffer
0: Keep
1: CLR bits
5
GPIO37
GPIO37_IES
Bitwise CLR operation of GPIO37 input buffer
0: Keep
1: CLR bits
4
GPIO36
GPIO36_IES
Bitwise CLR operation of GPIO36 input buffer
0: Keep
1: CLR bits
3
GPIO35
GPIO35_IES
Bitwise CLR operation of GPIO35 input buffer
0: Keep
1: CLR bits
2
GPIO34
GPIO34_IES
Bitwise CLR operation of GPIO34 input buffer
0: Keep
1: CLR bits
1
GPIO33
GPIO33_IES
Bitwise CLR operation of GPIO33 input buffer
0: Keep
1: CLR bits
0
GPIO32
GPIO32_IES
Bitwise CLR operation of GPIO32 input buffer
0: Keep
1: CLR bits
A2020A00 GPIO_PUPD0 GPIO PUPD Control
Bit
31
30
29
28
27
26
25
24
F9E0FBF0
23
22
21
20
19
18
17
16
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
0
0
1
1
1
1
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit
15
14
13
12
11
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1
15
4
3
2
1
Type
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
Overview
10
9
8
7
6
5
4
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
RW
RW
RW
RW
RW
RW
1
1
1
1
1
1
3
2
1
0
Configures GPIO PUPD control
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_PUPD
PUPD for GPIO31_PUPD
0: Disable
1: Enable
30
GPIO30
GPIO30_PUPD
PUPD for GPIO30_PUPD
0: Disable
1: Enable
29
GPIO29
GPIO29_PUPD
PUPD for GPIO29_PUPD
0: Disable
1: Enable
28
GPIO28
GPIO28_PUPD
PUPD for GPIO28_PUPD
0: Disable
1: Enable
27
GPIO27
GPIO27_PUPD
PUPD for GPIO27_PUPD
0: Disable
1: Enable
26
GPIO26
GPIO26_PUPD
PUPD for GPIO26_PUPD
0: Disable
1: Enable
25
GPIO25
GPIO25_PUPD
PUPD for GPIO25_PUPD
0: Disable
1: Enable
24
GPIO24
GPIO24_PUPD
PUPD for GPIO24_PUPD
0: Disable
1: Enable
23
GPIO23
GPIO23_PUPD
PUPD for GPIO23_PUPD
0: Disable
1: Enable
22
GPIO22
GPIO22_PUPD
PUPD for GPIO22_PUPD
0: Disable
1: Enable
21
GPIO21
GPIO21_PUPD
PUPD for GPIO21_PUPD
0: Disable
1: Enable
20
GPIO20
GPIO20_PUPD
PUPD for GPIO20_PUPD
0: Disable
1: Enable
19
GPIO19
GPIO19_PUPD
PUPD for GPIO19_PUPD
0: Disable
1: Enable
18
GPIO18
GPIO18_PUPD
PUPD for GPIO18_PUPD
0: Disable
1: Enable
17
GPIO17
GPIO17_PUPD
PUPD for GPIO17_PUPD
0: Disable
1: Enable
16
GPIO16
GPIO16_PUPD
PUPD for GPIO16_PUPD
0: Disable
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: Enable
15
GPIO15
GPIO15_PUPD
PUPD for GPIO15_PUPD
0: Disable
1: Enable
14
GPIO14
GPIO14_PUPD
PUPD for GPIO14_PUPD
0: Disable
1: Enable
13
GPIO13
GPIO13_PUPD
PUPD for GPIO13_PUPD
0: Disable
1: Enable
12
GPIO12
GPIO12_PUPD
PUPD for GPIO12_PUPD
0: Disable
1: Enable
11
GPIO11
GPIO11_PUPD
PUPD for GPIO11_PUPD
0: Disable
1: Enable
9
GPIO9
GPIO9_PUPD
PUPD for GPIO9_PUPD
0: Disable
1: Enable
8
GPIO8
GPIO8_PUPD
PUPD for GPIO8_PUPD
0: Disable
1: Enable
7
GPIO7
GPIO7_PUPD
PUPD for GPIO7_PUPD
0: Disable
1: Enable
6
GPIO6
GPIO6_PUPD
PUPD for GPIO6_PUPD
0: Disable
1: Enable
5
GPIO5
GPIO5_PUPD
PUPD for GPIO5_PUPD
0: Disable
1: Enable
4
GPIO4
GPIO4_PUPD
PUPD for GPIO4_PUPD
0: Disable
1: Enable
A2020A04
GPIO_PUPD0_
GPIO PUPD Control
SET
Bit
31
30
29
28
27
26
Bit
15
14
13
12
11
10
00000000
25
24
23
22
21
20
19
18
17
16
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1
15
4
3
2
1
Type
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
Overview
For bitwise access of GPIO_PUPD0
Bit(s) Mnemonic Name
31
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
GPIO31
Description
GPIO31_PUPD
Bitwise SET operation of GPIO31 PUPD
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
30
GPIO30
GPIO30_PUPD
Bitwise SET operation of GPIO30 PUPD
0: Keep
1: SET bits
29
GPIO29
GPIO29_PUPD
Bitwise SET operation of GPIO29 PUPD
0: Keep
1: SET bits
28
GPIO28
GPIO28_PUPD
Bitwise SET operation of GPIO28 PUPD
0: Keep
1: SET bits
27
GPIO27
GPIO27_PUPD
Bitwise SET operation of GPIO27 PUPD
0: Keep
1: SET bits
26
GPIO26
GPIO26_PUPD
Bitwise SET operation of GPIO26 PUPD
0: Keep
1: SET bits
25
GPIO25
GPIO25_PUPD
Bitwise SET operation of GPIO25 PUPD
0: Keep
1: SET bits
24
GPIO24
GPIO24_PUPD
Bitwise SET operation of GPIO24 PUPD
0: Keep
1: SET bits
23
GPIO23
GPIO23_PUPD
Bitwise SET operation of GPIO23 PUPD
0: Keep
1: SET bits
22
GPIO22
GPIO22_PUPD
Bitwise SET operation of GPIO22 PUPD
0: Keep
1: SET bits
21
GPIO21
GPIO21_PUPD
Bitwise SET operation of GPIO21 PUPD
0: Keep
1: SET bits
20
GPIO20
GPIO20_PUPD
Bitwise SET operation of GPIO20 PUPD
0: Keep
1: SET bits
19
GPIO19
GPIO19_PUPD
Bitwise SET operation of GPIO19 PUPD
0: Keep
1: SET bits
18
GPIO18
GPIO18_PUPD
Bitwise SET operation of GPIO18 PUPD
0: Keep
1: SET bits
17
GPIO17
GPIO17_PUPD
Bitwise SET operation of GPIO17 PUPD
0: Keep
1: SET bits
16
GPIO16
GPIO16_PUPD
Bitwise SET operation of GPIO16 PUPD
0: Keep
1: SET bits
15
GPIO15
GPIO15_PUPD
Bitwise SET operation of GPIO15 PUPD
0: Keep
1: SET bits
14
GPIO14
GPIO14_PUPD
Bitwise SET operation of GPIO14 PUPD
0: Keep
1: SET bits
13
GPIO13
GPIO13_PUPD
Bitwise SET operation of GPIO13 PUPD
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
12
GPIO12
GPIO12_PUPD
Bitwise SET operation of GPIO12 PUPD
0: Keep
1: SET bits
11
GPIO11
GPIO11_PUPD
Bitwise SET operation of GPIO11 PUPD
0: Keep
1: SET bits
9
GPIO9
GPIO9_PUPD
Bitwise SET operation of GPIO9 PUPD
0: Keep
1: SET bits
8
GPIO8
GPIO8_PUPD
Bitwise SET operation of GPIO8 PUPD
0: Keep
1: SET bits
7
GPIO7
GPIO7_PUPD
Bitwise SET operation of GPIO7 PUPD
0: Keep
1: SET bits
6
GPIO6
GPIO6_PUPD
Bitwise SET operation of GPIO6 PUPD
0: Keep
1: SET bits
5
GPIO5
GPIO5_PUPD
Bitwise SET operation of GPIO5 PUPD
0: Keep
1: SET bits
4
GPIO4
GPIO4_PUPD
Bitwise SET operation of GPIO4 PUPD
0: Keep
1: SET bits
A2020A08
GPIO_PUPD0_
GPIO PUPD Control
CLR
Bit
31
30
29
28
27
26
Bit
15
14
13
12
11
10
00000000
25
24
23
22
21
20
19
18
17
16
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1
15
4
3
2
1
Type
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
Overview
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
For bitwise access of GPIO_PUPD0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_PUPD
Bitwise CLR operation of GPIO31 PUPD
0: Keep
1: CLR bits
30
GPIO30
GPIO30_PUPD
Bitwise CLR operation of GPIO30 PUPD
0: Keep
1: CLR bits
29
GPIO29
GPIO29_PUPD
Bitwise CLR operation of GPIO29 PUPD
0: Keep
1: CLR bits
28
GPIO28
GPIO28_PUPD
Bitwise CLR operation of GPIO28 PUPD
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
27
GPIO27
GPIO27_PUPD
Bitwise CLR operation of GPIO27 PUPD
0: Keep
1: CLR bits
26
GPIO26
GPIO26_PUPD
Bitwise CLR operation of GPIO26 PUPD
0: Keep
1: CLR bits
25
GPIO25
GPIO25_PUPD
Bitwise CLR operation of GPIO25 PUPD
0: Keep
1: CLR bits
24
GPIO24
GPIO24_PUPD
Bitwise CLR operation of GPIO24 PUPD
0: Keep
1: CLR bits
23
GPIO23
GPIO23_PUPD
Bitwise CLR operation of GPIO23 PUPD
0: Keep
1: CLR bits
22
GPIO22
GPIO22_PUPD
Bitwise CLR operation of GPIO22 PUPD
0: Keep
1: CLR bits
21
GPIO21
GPIO21_PUPD
Bitwise CLR operation of GPIO21 PUPD
0: Keep
1: CLR bits
20
GPIO20
GPIO20_PUPD
Bitwise CLR operation of GPIO20 PUPD
0: Keep
1: CLR bits
19
GPIO19
GPIO19_PUPD
Bitwise CLR operation of GPIO19 PUPD
0: Keep
1: SET bits
18
GPIO18
GPIO18_PUPD
Bitwise CLR operation of GPIO18 PUPD
0: Keep
1: SET bits
17
GPIO17
GPIO17_PUPD
Bitwise CLR operation of GPIO17 PUPD
0: Keep
1: CLR bits
16
GPIO16
GPIO16_PUPD
Bitwise CLR operation of GPIO16 PUPD
0: Keep
1: SET bits
15
GPIO15
GPIO15_PUPD
Bitwise CLR operation of GPIO15 PUPD
0: Keep
1: SET bits
14
GPIO14
GPIO14_PUPD
Bitwise CLR operation of GPIO14 PUPD
0: Keep
1: CLR bits
13
GPIO13
GPIO13_PUPD
Bitwise CLR operation of GPIO13 PUPD
0: Keep
1: SET bits
12
GPIO12
GPIO12_PUPD
Bitwise CLR operation of GPIO12 PUPD
0: Keep
1: SET bits
11
GPIO11
GPIO11_PUPD
Bitwise CLR operation of GPIO11 PUPD
0: Keep
1: CLR bits
9
GPIO9
GPIO9_PUPD
Bitwise CLR operation of GPIO9 PUPD
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
8
GPIO8
GPIO8_PUPD
Bitwise CLR operation of GPIO8 PUPD
0: Keep
1: SET bits
7
GPIO7
GPIO7_PUPD
Bitwise CLR operation of GPIO7 PUPD
0: Keep
1: CLR bits
6
GPIO6
GPIO6_PUPD
Bitwise CLR operation of GPIO6 PUPD
0: Keep
1: SET bits
5
GPIO5
GPIO5_PUPD
Bitwise CLR operation of GPIO5 PUPD
0: Keep
1: SET bits
4
GPIO4
GPIO4_PUPD
Bitwise CLR operation of GPIO4 PUPD
0: Keep
1: CLR bits
A2020A10
Bit
GPIO_PUPD1
GPIO PUPD Control
0001FF77
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
RW
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
1
1
1
0
1
1
1
0
1
1
1
Overview
Configures GPIO PUPD control
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_PUPD
PUPD for GPIO48
0: Disable
1: Enable
15
GPIO47
GPIO47_PUPD
PUPD for GPIO47
0: Disable
1: Enable
14
GPIO46
GPIO46_PUPD
PUPD for GPIO46
0: Disable
1: Enable
13
GPIO45
GPIO45_PUPD
PUPD for GPIO45
0: Disable
1: Enable
12
GPIO44
GPIO44_PUPD
PUPD for GPIO44
0: Disable
1: Enable
11
GPIO43
GPIO43_PUPD
PUPD for GPIO43
0: Disable
1: Enable
10
GPIO42
GPIO42_PUPD
PUPD for GPIO42
0: Disable
1: Enable
9
GPIO41
GPIO41_PUPD
PUPD for GPIO41
0: Disable
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: Enable
8
GPIO40
GPIO40_PUPD
PUPD for GPIO40
0: Disable
1: Enable
7
GPIO39
GPIO39_PUPD
PUPD for GPIO39
0: Disable
1: Enable
6
GPIO38
GPIO38_PUPD
PUPD for GPIO38
0: Disable
1: Enable
5
GPIO37
GPIO37_PUPD
PUPD for GPIO37
0: Disable
1: Enable
4
GPIO36
GPIO36_PUPD
PUPD for GPIO36
0: Disable
1: Enable
3
GPIO35
GPIO35_PUPD
PUPD for GPIO35
0: Disable
1: Enable
2
GPIO34
GPIO34_PUPD
PUPD for GPIO34
0: Disable
1: Enable
1
GPIO33
GPIO33_PUPD
PUPD for GPIO33
0: Disable
1: Enable
0
GPIO32
GPIO32_PUPD
PUPD for GPIO32
0: Disable
1: Enable
A2020A14
Bit
GPIO_PUPD1_
GPIO PUPD Control
SET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_PUPD1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_PUPD
Bitwise SET operation of GPIO48 PUPD
0: Keep
1: SET bits
15
GPIO47
GPIO47_PUPD
Bitwise SET operation of GPIO47 PUPD
0: Keep
1: SET bits
14
GPIO46
GPIO46_PUPD
Bitwise SET operation of GPIO46 PUPD
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
13
GPIO45
GPIO45_PUPD
Bitwise SET operation of GPIO45 PUPD
0: Keep
1: SET bits
12
GPIO44
GPIO44_PUPD
Bitwise SET operation of GPIO44 PUPD
0: Keep
1: SET bits
11
GPIO43
GPIO43_PUPD
Bitwise SET operation of GPIO43 PUPD
0: Keep
1: SET bits
10
GPIO42
GPIO42_PUPD
Bitwise SET operation of GPIO42 PUPD
0: Keep
1: SET bits
9
GPIO41
GPIO41_PUPD
Bitwise SET operation of GPIO41 PUPD
0: Keep
1: SET bits
8
GPIO40
GPIO40_PUPD
Bitwise SET operation of GPIO40 PUPD
0: Keep
1: SET bits
7
GPIO39
GPIO39_PUPD
Bitwise SET operation of GPIO39 PUPD
0: Keep
1: SET bits
6
GPIO38
GPIO38_PUPD
Bitwise SET operation of GPIO38 PUPD
0: Keep
1: SET bits
5
GPIO37
GPIO37_PUPD
Bitwise SET operation of GPIO37 PUPD
0: Keep
1: SET bits
4
GPIO36
GPIO36_PUPD
Bitwise SET operation of GPIO36 PUPD
0: Keep
1: SET bits
3
GPIO35
GPIO35_PUPD
Bitwise SET operation of GPIO35 PUPD
0: Keep
1: SET bits
2
GPIO34
GPIO34_PUPD
Bitwise SET operation of GPIO34 PUPD
0: Keep
1: SET bits
1
GPIO33
GPIO33_PUPD
Bitwise SET operation of GPIO33 PUPD
0: Keep
1: SET bits
0
GPIO32
GPIO32_PUPD
Bitwise SET operation of GPIO32 PUPD
0: Keep
1: SET bits
A2020A18
Bit
GPIO_PUPD1_
GPIO PUPD Control
CLR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
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MT2523 Series Reference Manual
Reset
0
Overview
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
For bitwise access of GPIO_PUPD1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_PUPD
Bitwise CLR operation of GPIO48 PUPD
0: Keep
1: CLR bits
15
GPIO47
GPIO47_PUPD
Bitwise CLR operation of GPIO47 PUPD
0: Keep
1: CLR bits
14
GPIO46
GPIO46_PUPD
Bitwise CLR operation of GPIO46 PUPD
0: Keep
1: CLR bits
13
GPIO45
GPIO45_PUPD
Bitwise CLR operation of GPIO45 PUPD
0: Keep
1: CLR bits
12
GPIO44
GPIO44_PUPD
Bitwise CLR operation of GPIO44 PUPD
0: Keep
1: CLR bits
11
GPIO43
GPIO43_PUPD
Bitwise CLR operation of GPIO43 PUPD
0: Keep
1: CLR bits
10
GPIO42
GPIO42_PUPD
Bitwise CLR operation of GPIO42 PUPD
0: Keep
1: CLR bits
9
GPIO41
GPIO41_PUPD
Bitwise CLR operation of GPIO41 PUPD
0: Keep
1: CLR bits
8
GPIO40
GPIO40_PUPD
Bitwise CLR operation of GPIO40 PUPD
0: Keep
1: CLR bits
7
GPIO39
GPIO39_PUPD
Bitwise CLR operation of GPIO39 PUPD
0: Keep
1: CLR bits
6
GPIO38
GPIO38_PUPD
Bitwise CLR operation of GPIO38 PUPD
0: Keep
1: CLR bits
5
GPIO37
GPIO37_PUPD
Bitwise CLR operation of GPIO37 PUPD
0: Keep
1: CLR bits
4
GPIO36
GPIO36_PUPD
Bitwise CLR operation of GPIO36 PUPD
0: Keep
1: CLR bits
3
GPIO35
GPIO35_PUPD
Bitwise CLR operation of GPIO35 PUPD
0: Keep
1: CLR bits
2
GPIO34
GPIO34_PUPD
Bitwise CLR operation of GPIO34 PUPD
0: Keep
1: CLR bits
1
GPIO33
GPIO33_PUPD
Bitwise CLR operation of GPIO33 PUPD
0: Keep
1: CLR bits
0
GPIO32
GPIO32_PUPD
Bitwise CLR operation of GPIO32 PUPD
0: Keep
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A2020B00
Description
1: CLR bits
GPIO_RESEN0
GPIO R0 Control
_0
Bit
31
30
29
28
27
26
Bit
15
14
13
12
11
10
FDFDFBF0
25
24
23
22
21
20
19
18
17
16
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
1
0
1
1
1
1
1
1
1
0
1
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1
15
4
3
2
1
Type
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
Overview
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
RW
RW
RW
RW
RW
RW
1
1
1
1
1
1
Configures GPIO R0 control
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_R0
R0 for GPIO31
0: Disable
1: Enable
30
GPIO30
GPIO30_R0
R0 for GPIO30
0: Disable
1: Enable
29
GPIO29
GPIO29_R0
R0 for GPIO29
0: Disable
1: Enable
28
GPIO28
GPIO28_R0
R0 for GPIO28
0: Disable
1: Enable
27
GPIO27
GPIO27_R0
R0 for GPIO27
0: Disable
1: Enable
26
GPIO26
GPIO26_R0
R0 for GPIO26
0: Disable
1: Enable
25
GPIO25
GPIO25_R0
R0 for GPIO25
0: Disable
1: Enable
24
GPIO24
GPIO24_R0
R0 for GPIO24
0: Disable
1: Enable
23
GPIO23
GPIO23_R0
R0 for GPIO23
0: Disable
1: Enable
22
GPIO22
GPIO22_R0
R0 for GPIO22
0: Disable
1: Enable
21
GPIO21
GPIO21_R0
R0 for GPIO21
0: Disable
1: Enable
20
GPIO20
GPIO20_R0
R0 for GPIO20
0: Disable
1: Enable
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
19
GPIO19
GPIO19_R0
R0 for GPIO19
0: Disable
1: Enable
18
GPIO18
GPIO18_R0
R0 for GPIO18
0: Disable
1: Enable
17
GPIO17
GPIO17_R0
R0 for GPIO17
0: Disable
1: Enable
16
GPIO16
GPIO16_R0
R0 for GPIO16
0: Disable
1: Enable
15
GPIO15
GPIO15_R0
R0 for GPIO15
0: Disable
1: Enable
14
GPIO14
GPIO14_R0
R0 for GPIO14
0: Disable
1: Enable
13
GPIO13
GPIO13_R0
R0 for GPIO13
0: Disable
1: Enable
12
GPIO12
GPIO12_R0
R0 for GPIO12
0: Disable
1: Enable
11
GPIO11
GPIO11_R0
R0 for GPIO11
0: Disable
1: Enable
9
GPIO9
GPIO9_R0
R0 for GPIO9
0: Disable
1: Enable
8
GPIO8
GPIO8_R0
R0 for GPIO8
0: Disable
1: Enable
7
GPIO7
GPIO7_R0
R0 for GPIO7
0: Disable
1: Enable
6
GPIO6
GPIO6_R0
R0 for GPIO6
0: Disable
1: Enable
5
GPIO5
GPIO5_R0
R0 for GPIO5
0: Disable
1: Enable
4
GPIO4
GPIO4_R0
R0 for GPIO4
0: Disable
1: Enable
A2020B04
Bit
31
GPIO_RESEN0
GPIO R0 Control
_0_SET
30
29
28
27
26
25
00000000
24
23
22
21
20
19
18
17
16
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit
15
14
13
12
11
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1
15
4
3
2
1
Type
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
Overview
10
9
8
7
6
5
4
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
3
2
1
0
For bitwise access of GPIO_RESEN0_0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_R0
Bitwise SET operation of GPIO31 R0
0: Keep
1: SET bits
30
GPIO30
GPIO30_R0
Bitwise SET operation of GPIO30 R0
0: Keep
1: SET bits
29
GPIO29
GPIO29_R0
Bitwise SET operation of GPIO29 R0
0: Keep
1: SET bits
28
GPIO28
GPIO28_R0
Bitwise SET operation of GPIO28 R0
0: Keep
1: SET bits
27
GPIO27
GPIO27_R0
Bitwise SET operation of GPIO27 R0
0: Keep
1: SET bits
26
GPIO26
GPIO26_R0
Bitwise SET operation of GPIO26 R0
0: Keep
1: SET bits
25
GPIO25
GPIO25_R0
Bitwise SET operation of GPIO25 R0
0: Keep
1: SET bits
24
GPIO24
GPIO24_R0
Bitwise SET operation of GPIO24 R0
0: Keep
1: SET bits
23
GPIO23
GPIO23_R0
Bitwise SET operation of GPIO23 R0
0: Keep
1: SET bits
22
GPIO22
GPIO22_R0
Bitwise SET operation of GPIO22 R0
0: Keep
1: SET bits
21
GPIO21
GPIO21_R0
Bitwise SET operation of GPIO21 R0
0: Keep
1: SET bits
20
GPIO20
GPIO20_R0
Bitwise SET operation of GPIO20 R0
0: Keep
1: SET bits
19
GPIO19
GPIO19_R0
Bitwise SET operation of GPIO19 R0
0: Keep
1: SET bits
18
GPIO18
GPIO18_R0
Bitwise SET operation of GPIO18 R0
0: Keep
1: SET bits
17
GPIO17
GPIO17_R0
Bitwise SET operation of GPIO17 R0
0: Keep
1: SET bits
16
GPIO16
GPIO16_R0
Bitwise SET operation of GPIO16 R0
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: SET bits
15
GPIO15
GPIO15_R0
Bitwise SET operation of GPIO15 R0
0: Keep
1: SET bits
14
GPIO14
GPIO14_R0
Bitwise SET operation of GPIO14 R0
0: Keep
1: SET bits
13
GPIO13
GPIO13_R0
Bitwise SET operation of GPIO13 R0
0: Keep
1: SET bits
12
GPIO12
GPIO12_R0
Bitwise SET operation of GPIO12 R0
0: Keep
1: SET bits
11
GPIO11
GPIO11_R0
Bitwise SET operation of GPIO11 R0
0: Keep
1: SET bits
9
GPIO9
GPIO9_R0
Bitwise SET operation of GPIO9 R0
0: Keep
1: SET bits
8
GPIO8
GPIO8_R0
Bitwise SET operation of GPIO8 R0
0: Keep
1: SET bits
7
GPIO7
GPIO7_R0
Bitwise SET operation of GPIO7 R0
0: Keep
1: SET bits
6
GPIO6
GPIO6_R0
Bitwise SET operation of GPIO6 R0
0: Keep
1: SET bits
5
GPIO5
GPIO5_R0
Bitwise SET operation of GPIO5 R0
0: Keep
1: SET bits
4
GPIO4
GPIO4_R0
Bitwise SET operation of GPIO4 R0
0: Keep
1: SET bits
A2020B08
GPIO_RESEN0
GPIO R0 Control
_0_CLR
Bit
31
30
29
28
27
26
Bit
15
14
13
12
11
10
00000000
25
24
23
22
21
20
19
18
17
16
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1
15
4
3
2
1
Type
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
Overview
For bitwise access of GPIO_RESEN0_0
Bit(s) Mnemonic Name
31
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
GPIO31
GPIO31_R0
Description
Bitwise CLR operation of GPIO31 R0
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
30
GPIO30
GPIO30_R0
Bitwise CLR operation of GPIO30 R0
0: Keep
1: CLR bits
29
GPIO29
GPIO29_R0
Bitwise CLR operation of GPIO29 R0
0: Keep
1: CLR bits
28
GPIO28
GPIO28_R0
Bitwise CLR operation of GPIO28 R0
0: Keep
1: CLR bits
27
GPIO27
GPIO27_R0
Bitwise CLR operation of GPIO27 R0
0: Keep
1: CLR bits
26
GPIO26
GPIO26_R0
Bitwise CLR operation of GPIO26 R0
0: Keep
1: CLR bits
25
GPIO25
GPIO25_R0
Bitwise CLR operation of GPIO25 R0
0: Keep
1: CLR bits
24
GPIO24
GPIO24_R0
Bitwise CLR operation of GPIO24 R0
0: Keep
1: CLR bits
23
GPIO23
GPIO23_R0
Bitwise CLR operation of GPIO23 R0
0: Keep
1: CLR bits
22
GPIO22
GPIO22_R0
Bitwise CLR operation of GPIO22 R0
0: Keep
1: CLR bits
21
GPIO21
GPIO21_R0
Bitwise CLR operation of GPIO21 R0
0: Keep
1: CLR bits
20
GPIO20
GPIO20_R0
Bitwise CLR operation of GPIO20 R0
0: Keep
1: CLR bits
19
GPIO19
GPIO19_R0
Bitwise CLR operation of GPIO19 R0
0: Keep
1: CLR bits
18
GPIO18
GPIO18_R0
Bitwise CLR operation of GPIO18 R0
0: Keep
1: CLR bits
17
GPIO17
GPIO17_R0
Bitwise CLR operation of GPIO17 R0
0: Keep
1: CLR bits
16
GPIO16
GPIO16_R0
Bitwise CLR operation of GPIO16 R0
0: Keep
1: CLR bits
15
GPIO15
GPIO15_R0
Bitwise CLR operation of GPIO15 R0
0: Keep
1: CLR bits
14
GPIO14
GPIO14_R0
Bitwise CLR operation of GPIO14 R0
0: Keep
1: CLR bits
13
GPIO13
GPIO13_R0
Bitwise CLR operation of GPIO13 R0
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
12
GPIO12
GPIO12_R0
Bitwise CLR operation of GPIO12 R0
0: Keep
1: CLR bits
11
GPIO11
GPIO11_R0
Bitwise CLR operation of GPIO11 R0
0: Keep
1: CLR bits
9
GPIO9
GPIO9_R0
Bitwise CLR operation of GPIO9 R0
0: Keep
1: CLR bits
8
GPIO8
GPIO8_R0
Bitwise CLR operation of GPIO8 R0
0: Keep
1: CLR bits
7
GPIO7
GPIO7_R0
Bitwise CLR operation of GPIO7 R0
0: Keep
1: CLR bits
6
GPIO6
GPIO6_R0
Bitwise CLR operation of GPIO6 R0
0: Keep
1: CLR bits
5
GPIO5
GPIO5_R0
Bitwise CLR operation of GPIO5 R0
0: Keep
1: CLR bits
4
GPIO4
GPIO4_R0
Bitwise CLR operation of GPIO4 R0
0: Keep
1: CLR bits
A2020B10
Bit
GPIO_RESEN0
GPIO R0 Control
_1
0001FF77
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
RW
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
1
1
1
1
1
1
1
1
0
1
1
1
0
1
1
1
Overview
Configures GPIO R0 control
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_R0
R0 for GPIO48
0: Disable
1: Enable
15
GPIO47
GPIO47_R0
R0 for GPIO47
0: Disable
1: Enable
14
GPIO46
GPIO46_R0
R0 for GPIO46
0: Disable
1: Enable
13
GPIO45
GPIO45_R0
R0 for GPIO45
0: Disable
1: Enable
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
12
GPIO44
GPIO44_R0
R0 for GPIO44
0: Disable
1: Enable
11
GPIO43
GPIO43_R0
R0 for GPIO43
0: Disable
1: Enable
10
GPIO42
GPIO42_R0
R0 for GPIO42
0: Disable
1: Enable
9
GPIO41
GPIO41_R0
R0 for GPIO41
0: Disable
1: Enable
8
GPIO40
GPIO40_R0
R0 for GPIO40
0: Disable
1: Enable
7
GPIO39
GPIO39_R0
R0 for GPIO39
0: Disable
1: Enable
6
GPIO38
GPIO38_R0
R0 for GPIO38
0: Disable
1: Enable
5
GPIO37
GPIO37_R0
R0 for GPIO37
0: Disable
1: Enable
4
GPIO36
GPIO36_R0
R0 for GPIO36
0: Disable
1: Enable
3
GPIO35
GPIO35_R0
R0 for GPIO35
0: Disable
1: Enable
2
GPIO34
GPIO34_R0
R0 for GPIO34
0: Disable
1: Enable
1
GPIO33
GPIO33_R0
R0 for GPIO33
0: Disable
1: Enable
0
GPIO32
GPIO32_R0
R0 for GPIO32
0: Disable
1: Enable
A2020B14
Bit
GPIO_RESEN0
GPIO R0 Control
_1_SET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_RESEN0_1
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_R0
Bitwise SET operation of GPIO48 R0
0: Keep
1: SET bits
15
GPIO47
GPIO47_R0
Bitwise SET operation of GPIO47 R0
0: Keep
1: SET bits
14
GPIO46
GPIO46_R0
Bitwise SET operation of GPIO46 R0
0: Keep
1: SET bits
13
GPIO45
GPIO45_R0
Bitwise SET operation of GPIO45 R0
0: Keep
1: SET bits
12
GPIO44
GPIO44_R0
Bitwise SET operation of GPIO44 R0
0: Keep
1: SET bits
11
GPIO43
GPIO43_R0
Bitwise SET operation of GPIO43 R0
0: Keep
1: SET bits
10
GPIO42
GPIO42_R0
Bitwise SET operation of GPIO42 R0
0: Keep
1: SET bits
9
GPIO41
GPIO41_R0
Bitwise SET operation of GPIO41 R0
0: Keep
1: SET bits
8
GPIO40
GPIO40_R0
Bitwise SET operation of GPIO40 R0
0: Keep
1: SET bits
7
GPIO39
GPIO39_R0
Bitwise SET operation of GPIO39 R0
0: Keep
1: SET bits
6
GPIO38
GPIO38_R0
Bitwise SET operation of GPIO38 R0
0: Keep
1: SET bits
5
GPIO37
GPIO37_R0
Bitwise SET operation of GPIO37 R0
0: Keep
1: SET bits
4
GPIO36
GPIO36_R0
Bitwise SET operation of GPIO36 R0
0: Keep
1: SET bits
3
GPIO35
GPIO35_R0
Bitwise SET operation of GPIO35 R0
0: Keep
1: SET bits
2
GPIO34
GPIO34_R0
Bitwise SET operation of GPIO34 R0
0: Keep
1: SET bits
1
GPIO33
GPIO33_R0
Bitwise SET operation of GPIO33 R0
0: Keep
1: SET bits
0
GPIO32
GPIO32_R0
Bitwise SET operation of GPIO32 R0
0: Keep
1: SET bits
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MT2523 Series Reference Manual
A2020B18
Bit
GPIO_RESEN0
GPIO R0 Control
_1_CLR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
Name
Type
Reset
16
GPIO
48
WO
0
0
GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_RESEN0_1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_R0
Bitwise CLR operation of GPIO48 R0
0: Keep
1: CLR bits
15
GPIO47
GPIO47_R0
Bitwise CLR operation of GPIO47 R0
0: Keep
1: CLR bits
14
GPIO46
GPIO46_R0
Bitwise CLR operation of GPIO46 R0
0: Keep
1: CLR bits
13
GPIO45
GPIO45_R0
Bitwise CLR operation of GPIO45 R0
0: Keep
1: CLR bits
12
GPIO44
GPIO44_R0
Bitwise CLR operation of GPIO44 R0
0: Keep
1: CLR bits
11
GPIO43
GPIO43_R0
Bitwise CLR operation of GPIO43 R0
0: Keep
1: CLR bits
10
GPIO42
GPIO42_R0
Bitwise CLR operation of GPIO42 R0
0: Keep
1: CLR bits
9
GPIO41
GPIO41_R0
Bitwise CLR operation of GPIO41 R0
0: Keep
1: CLR bits
8
GPIO40
GPIO40_R0
Bitwise CLR operation of GPIO40 R0
0: Keep
1: CLR bits
7
GPIO39
GPIO39_R0
Bitwise CLR operation of GPIO39 R0
0: Keep
1: CLR bits
6
GPIO38
GPIO38_R0
Bitwise CLR operation of GPIO38 R0
0: Keep
1: CLR bits
5
GPIO37
GPIO37_R0
Bitwise CLR operation of GPIO37 R0
0: Keep
1: CLR bits
4
GPIO36
GPIO36_R0
Bitwise CLR operation of GPIO36 R0
0: Keep
1: CLR bits
3
GPIO35
GPIO35_R0
Bitwise CLR operation of GPIO35 R0
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: CLR bits
2
GPIO34
GPIO34_R0
Bitwise CLR operation of GPIO34 R0
0: Keep
1: CLR bits
1
GPIO33
GPIO33_R0
Bitwise CLR operation of GPIO33 R0
0: Keep
1: CLR bits
0
GPIO32
GPIO32_R0
Bitwise CLR operation of GPIO32 R0
0: Keep
1: CLR bits
A2020B20
GPIO_RESEN1
GPIO R1 Control
_0
00000000
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
RW
0
Type
Reset
Bit
15
30
RW
0
14
29
RW
0
13
28
RW
0
12
27
RW
0
11
GPIO GPIO1 GPIO1 GPIO1 GPIO1
Name
15
4
3
2
1
Type
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
Overview
26
RW
0
10
25
RW
0
9
24
RW
0
8
23
RW
0
7
22
RW
0
6
21
RW
0
5
20
RW
0
4
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
RW
RW
RW
RW
RW
RW
0
0
0
0
0
0
9
RW
0
3
8
RW
0
2
7
RW
0
1
16
RW
0
0
Configures GPIO R1 control
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_R1
R1 for GPIO31
0: Disable
1: Enable
30
GPIO30
GPIO30_R1
R1 for GPIO30
0: Disable
1: Enable
29
GPIO29
GPIO29_R1
R1 for GPIO29
0: Disable
1: Enable
28
GPIO28
GPIO28_R1
R1 for GPIO28
0: Disable
1: Enable
27
GPIO27
GPIO27_R1
R1 for GPIO27
0: Disable
1: Enable
26
GPIO26
GPIO26_R1
R1 for GPIO26
0: Disable
1: Enable
25
GPIO25
GPIO25_R1
R1 for GPIO25
0: Disable
1: Enable
24
GPIO24
GPIO24_R1
R1 for GPIO24
0: Disable
1: Enable
23
GPIO23
GPIO23_R1
R1 for GPIO23
0: Disable
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: Enable
22
GPIO22
GPIO22_R1
R1 for GPIO22
0: Disable
1: Enable
21
GPIO21
GPIO21_R1
R1 for GPIO21
0: Disable
1: Enable
20
GPIO20
GPIO20_R1
R1 for GPIO20
0: Disable
1: Enable
19
GPIO19
GPIO19_R1
R1 for GPIO19
0: Disable
1: Enable
18
GPIO18
GPIO18_R1
R1 for GPIO18
0: Disable
1: Enable
17
GPIO17
GPIO17_R1
R1 for GPIO17
0: Disable
1: Enable
16
GPIO16
GPIO16_R1
R1 for GPIO16
0: Disable
1: Enable
15
GPIO15
GPIO15_R1
R1 for GPIO15
0: Disable
1: Enable
14
GPIO14
GPIO14_R1
R1 for GPIO14
0: Disable
1: Enable
13
GPIO13
GPIO13_R1
R1 for GPIO13
0: Disable
1: Enable
12
GPIO12
GPIO12_R1
R1 for GPIO12
0: Disable
1: Enable
11
GPIO11
GPIO11_R1
R1 for GPIO11
0: Disable
1: Enable
9
GPIO9
GPIO9_R1
R1 for GPIO9
0: Disable
1: Enable
8
GPIO8
GPIO8_R1
R1 for GPIO8
0: Disable
1: Enable
7
GPIO7
GPIO7_R1
R1 for GPIO7
0: Disable
1: Enable
6
GPIO6
GPIO6_R1
R1 for GPIO6
0: Disable
1: Enable
5
GPIO5
GPIO5_R1
R1 for GPIO5
0: Disable
1: Enable
4
GPIO4
GPIO4_R1
R1 for GPIO4
0: Disable
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A2020B24
Description
1: Enable
GPIO_RESEN1
GPIO R1 Control
_0_SET
Bit
31
30
29
28
27
26
Bit
15
14
13
12
11
10
00000000
25
24
23
22
21
20
19
18
17
16
9
8
7
6
5
4
3
2
1
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1
15
4
3
2
1
Type
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
Overview
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
For bitwise access of GPIO_RESEN1_0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_R1
Bitwise SET operation of GPIO31 R1
0: Keep
1: SET bits
30
GPIO30
GPIO30_R1
Bitwise SET operation of GPIO30 R1
0: Keep
1: SET bits
29
GPIO29
GPIO29_R1
Bitwise SET operation of GPIO29 R1
0: Keep
1: SET bits
28
GPIO28
GPIO28_R1
Bitwise SET operation of GPIO28 R1
0: Keep
1: SET bits
27
GPIO27
GPIO27_R1
Bitwise SET operation of GPIO27 R1
0: Keep
1: SET bits
26
GPIO26
GPIO26_R1
Bitwise SET operation of GPIO26 R1
0: Keep
1: SET bits
25
GPIO25
GPIO25_R1
Bitwise SET operation of GPIO25 R1
0: Keep
1: SET bits
24
GPIO24
GPIO24_R1
Bitwise SET operation of GPIO24 R1
0: Keep
1: SET bits
23
GPIO23
GPIO23_R1
Bitwise SET operation of GPIO23 R1
0: Keep
1: SET bits
22
GPIO22
GPIO22_R1
Bitwise SET operation of GPIO22 R1
0: Keep
1: SET bits
21
GPIO21
GPIO21_R1
Bitwise SET operation of GPIO21 R1
0: Keep
1: SET bits
20
GPIO20
GPIO20_R1
Bitwise SET operation of GPIO20 R1
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
19
GPIO19
GPIO19_R1
Bitwise SET operation of GPIO19 R1
0: Keep
1: SET bits
18
GPIO18
GPIO18_R1
Bitwise SET operation of GPIO18 R1
0: Keep
1: SET bits
17
GPIO17
GPIO17_R1
Bitwise SET operation of GPIO17 R1
0: Keep
1: SET bits
16
GPIO16
GPIO16_R1
Bitwise SET operation of GPIO16 R1
0: Keep
1: SET bits
15
GPIO15
GPIO15_R1
Bitwise SET operation of GPIO15 R1
0: Keep
1: SET bits
14
GPIO14
GPIO14_R1
Bitwise SET operation of GPIO14 R1
0: Keep
1: SET bits
13
GPIO13
GPIO13_R1
Bitwise SET operation of GPIO13 R1
0: Keep
1: SET bits
12
GPIO12
GPIO12_R1
Bitwise SET operation of GPIO12 R1
0: Keep
1: SET bits
11
GPIO11
GPIO11_R1
Bitwise SET operation of GPIO11 R1
0: Keep
1: SET bits
9
GPIO9
GPIO9_R1
Bitwise SET operation of GPIO9 R1
0: Keep
1: SET bits
8
GPIO8
GPIO8_R1
Bitwise SET operation of GPIO8 R1
0: Keep
1: SET bits
7
GPIO7
GPIO7_R1
Bitwise SET operation of GPIO7 R1
0: Keep
1: SET bits
6
GPIO6
GPIO6_R1
Bitwise SET operation of GPIO6 R1
0: Keep
1: SET bits
5
GPIO5
GPIO5_R1
Bitwise SET operation of GPIO5 R1
0: Keep
1: SET bits
4
GPIO4
GPIO4_R1
Bitwise SET operation of GPIO4 R1
0: Keep
1: SET bits
A2020B28
Bit
31
GPIO_RESEN1
GPIO R1 Control
_0_CLR
30
29
28
27
26
25
00000000
24
23
22
21
20
19
18
17
16
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO1 GPIO1 GPIO1 GPIO
31
30
29
28
27
26
25
24
23
22
21
20
9
8
7
16
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit
15
14
13
12
11
Name GPIO GPIO1 GPIO1 GPIO1 GPIO1
15
4
3
2
1
Type
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
Overview
10
9
8
7
6
5
4
GPIO GPIO GPIO GPIO GPIO GPIO
9
8
7
6
5
4
WO
WO
WO
WO
WO
WO
0
0
0
0
0
0
3
2
1
0
For bitwise access of GPIO_RESEN1_0
Bit(s) Mnemonic Name
Description
31
GPIO31
GPIO31_R1
Bitwise CLR operation of GPIO31 R1
0: Keep
1: CLR bits
30
GPIO30
GPIO30_R1
Bitwise CLR operation of GPIO30 R1
0: Keep
1: CLR bits
29
GPIO29
GPIO29_R1
Bitwise CLR operation of GPIO29 R1
0: Keep
1: CLR bits
28
GPIO28
GPIO28_R1
Bitwise CLR operation of GPIO28 R1
0: Keep
1: CLR bits
27
GPIO27
GPIO27_R1
Bitwise CLR operation of GPIO27 R1
0: Keep
1: CLR bits
26
GPIO26
GPIO26_R1
Bitwise CLR operation of GPIO26 R1
0: Keep
1: CLR bits
25
GPIO25
GPIO25_R1
Bitwise CLR operation of GPIO25 R1
0: Keep
1: CLR bits
24
GPIO24
GPIO24_R1
Bitwise CLR operation of GPIO24 R1
0: Keep
1: CLR bits
23
GPIO23
GPIO23_R1
Bitwise CLR operation of GPIO23 R1
0: Keep
1: CLR bits
22
GPIO22
GPIO22_R1
Bitwise CLR operation of GPIO22 R1
0: Keep
1: CLR bits
21
GPIO21
GPIO21_R1
Bitwise CLR operation of GPIO21 R1
0: Keep
1: CLR bits
20
GPIO20
GPIO20_R1
Bitwise CLR operation of GPIO20 R1
0: Keep
1: CLR bits
19
GPIO19
GPIO19_R1
Bitwise CLR operation of GPIO19 R1
0: Keep
1: CLR bits
18
GPIO18
GPIO18_R1
Bitwise CLR operation of GPIO18 R1
0: Keep
1: CLR bits
17
GPIO17
GPIO17_R1
Bitwise CLR operation of GPIO17 R1
0: Keep
1: CLR bits
16
GPIO16
GPIO16_R1
Bitwise CLR operation of GPIO16 R1
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
15
GPIO15
GPIO15_R1
Bitwise CLR operation of GPIO15 R1
0: Keep
1: CLR bits
14
GPIO14
GPIO14_R1
Bitwise CLR operation of GPIO14 R1
0: Keep
1: CLR bits
13
GPIO13
GPIO13_R1
Bitwise CLR operation of GPIO13 R1
0: Keep
1: CLR bits
12
GPIO12
GPIO12_R1
Bitwise CLR operation of GPIO12 R1
0: Keep
1: CLR bits
11
GPIO11
GPIO11_R1
Bitwise CLR operation of GPIO11 R1
0: Keep
1: CLR bits
9
GPIO9
GPIO9_R1
Bitwise CLR operation of GPIO9 R1
0: Keep
1: CLR bits
8
GPIO8
GPIO8_R1
Bitwise CLR operation of GPIO8 R1
0: Keep
1: CLR bits
7
GPIO7
GPIO7_R1
Bitwise CLR operation of GPIO7 R1
0: Keep
1: CLR bits
6
GPIO6
GPIO6_R1
Bitwise CLR operation of GPIO6 R1
0: Keep
1: CLR bits
5
GPIO5
GPIO5_R1
Bitwise CLR operation of GPIO5 R1
0: Keep
1: CLR bits
4
GPIO4
GPIO4_R1
Bitwise CLR operation of GPIO4 R1
0: Keep
1: CLR bits
A2020B30
Bit
GPIO_RESEN1
GPIO R1 Control
_1
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
RW
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
Configures GPIO R1 control
Bit(s) Mnemonic Name
16
GPIO48
GPIO48_R1
Description
R1 for GPIO48
0: Disable
1: Enable
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
15
GPIO47
GPIO47_R1
R1 for GPIO47
0: Disable
1: Enable
14
GPIO46
GPIO46_R1
R1 for GPIO46
0: Disable
1: Enable
13
GPIO45
GPIO45_R1
R1 for GPIO45
0: Disable
1: Enable
12
GPIO44
GPIO44_R1
R1 for GPIO44
0: Disable
1: Enable
11
GPIO43
GPIO43_R1
R1 for GPIO43
0: Disable
1: Enable
10
GPIO42
GPIO42_R1
R1 for GPIO42
0: Disable
1: Enable
9
GPIO41
GPIO41_R1
R1 for GPIO41
0: Disable
1: Enable
8
GPIO40
GPIO40_R1
R1 for GPIO40
0: Disable
1: Enable
7
GPIO39
GPIO39_R1
R1 for GPIO39
0: Disable
1: Enable
6
GPIO38
GPIO38_R1
R1 for GPIO38
0: Disable
1: Enable
5
GPIO37
GPIO37_R1
R1 for GPIO37
0: Disable
1: Enable
4
GPIO36
GPIO36_R1
R1 for GPIO36
0: Disable
1: Enable
3
GPIO35
GPIO35_R1
R1 for GPIO35
0: Disable
1: Enable
2
GPIO34
GPIO34_R1
R1 for GPIO34
0: Disable
1: Enable
1
GPIO33
GPIO33_R1
R1 for GPIO33
0: Disable
1: Enable
0
GPIO32
GPIO32_R1
R1 for GPIO32
0: Disable
1: Enable
A2020B34
Bit
31
GPIO_RESEN1
GPIO R1 Control
_1_SET
30
29
28
27
26
25
00000000
24
23
22
© 2015 - 2018 Airoha Technology Corp.
21
20
19
18
17
16
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MT2523 Series Reference Manual
Name
Type
Reset
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_RESEN1_1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_R1
Bitwise SET operation of GPIO48 R1
0: Keep
1: SET bits
15
GPIO47
GPIO47_R1
Bitwise SET operation of GPIO47 R1
0: Keep
1: SET bits
14
GPIO46
GPIO46_R1
Bitwise SET operation of GPIO46 R1
0: Keep
1: SET bits
13
GPIO45
GPIO45_R1
Bitwise SET operation of GPIO45 R1
0: Keep
1: SET bits
12
GPIO44
GPIO44_R1
Bitwise SET operation of GPIO44 R1
0: Keep
1: SET bits
11
GPIO43
GPIO43_R1
Bitwise SET operation of GPIO43 R1
0: Keep
1: SET bits
10
GPIO42
GPIO42_R1
Bitwise SET operation of GPIO42 R1
0: Keep
1: SET bits
9
GPIO41
GPIO41_R1
Bitwise SET operation of GPIO41 R1
0: Keep
1: SET bits
8
GPIO40
GPIO40_R1
Bitwise SET operation of GPIO40 R1
0: Keep
1: SET bits
7
GPIO39
GPIO39_R1
Bitwise SET operation of GPIO39 R1
0: Keep
1: SET bits
6
GPIO38
GPIO38_R1
Bitwise SET operation of GPIO38 R1
0: Keep
1: SET bits
5
GPIO37
GPIO37_R1
Bitwise SET operation of GPIO37 R1
0: Keep
1: SET bits
4
GPIO36
GPIO36_R1
Bitwise SET operation of GPIO36 R1
0: Keep
1: SET bits
3
GPIO35
GPIO35_R1
Bitwise SET operation of GPIO35 R1
0: Keep
1: SET bits
2
GPIO34
GPIO34_R1
Bitwise SET operation of GPIO34 R1
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: SET bits
1
GPIO33
GPIO33_R1
Bitwise SET operation of GPIO33 R1
0: Keep
1: SET bits
0
GPIO32
GPIO32_R1
Bitwise SET operation of GPIO32 R1
0: Keep
1: SET bits
A2020B38
Bit
GPIO_RESEN1
GPIO R1 Control
_1_CLR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
Name
Type
Reset
Bit
16
GPIO
48
WO
0
0
Name GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO GPIO
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
Type
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
WO
Reset
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Overview
For bitwise access of GPIO_RESEN1_1
Bit(s) Mnemonic Name
Description
16
GPIO48
GPIO48_R1
Bitwise CLR operation of GPIO48 R1
0: Keep
1: CLR bits
15
GPIO47
GPIO47_R1
Bitwise CLR operation of GPIO47 R1
0: Keep
1: CLR bits
14
GPIO46
GPIO46_R1
Bitwise CLR operation of GPIO46 R1
0: Keep
1: CLR bits
13
GPIO45
GPIO45_R1
Bitwise CLR operation of GPIO45 R1
0: Keep
1: CLR bits
12
GPIO44
GPIO44_R1
Bitwise CLR operation of GPIO44 R1
0: Keep
1: CLR bits
11
GPIO43
GPIO43_R1
Bitwise CLR operation of GPIO43 R1
0: Keep
1: CLR bits
10
GPIO42
GPIO42_R1
Bitwise CLR operation of GPIO42 R1
0: Keep
1: CLR bits
9
GPIO41
GPIO41_R1
Bitwise CLR operation of GPIO41 R1
0: Keep
1: CLR bits
8
GPIO40
GPIO40_R1
Bitwise CLR operation of GPIO40 R1
0: Keep
1: CLR bits
7
GPIO39
GPIO39_R1
Bitwise CLR operation of GPIO39 R1
0: Keep
1: CLR bits
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
6
GPIO38
GPIO38_R1
Bitwise CLR operation of GPIO38 R1
0: Keep
1: CLR bits
5
GPIO37
GPIO37_R1
Bitwise CLR operation of GPIO37 R1
0: Keep
1: CLR bits
4
GPIO36
GPIO36_R1
Bitwise CLR operation of GPIO36 R1
0: Keep
1: CLR bits
3
GPIO35
GPIO35_R1
Bitwise CLR operation of GPIO35 R1
0: Keep
1: CLR bits
2
GPIO34
GPIO34_R1
Bitwise CLR operation of GPIO34 R1
0: Keep
1: CLR bits
1
GPIO33
GPIO33_R1
Bitwise CLR operation of GPIO33 R1
0: Keep
1: CLR bits
0
GPIO32
GPIO32_R1
Bitwise CLR operation of GPIO32 R1
0: Keep
1: CLR bits
A2020C00 GPIO_MODE0 GPIO Mode Control
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
31
30
15
14
0
0
29
28
13
GPIO7
RW
0
GPIO3
RW
0
0
27
26
12
11
10
0
0
0
0
00000000
25
24
9
8
7
0
0
GPIO6
RW
0
GPIO2
RW
0
0
0
23
22
0
6
21
20
5
4
3
0
0
GPIO5
RW
0
GPIO1
RW
0
0
0
19
18
0
2
17
16
1
0
GPIO4
RW
0
GPIO0
RW
0
0
0
0
Configures GPIO aux. mode
Bit(s) Mnemonic Name
Description
30:28
GPIO7
Aux. mode of GPIO_7
0: GPIO7 (IO)
1: EINT6 (I)
2: MC1_A_DA1 (IO)
3: SLA_EDICK (I)
4: U2TXD (O)
5: Reserved
6: BT_BUCK_EN_HW (O)
7: MA_SPI0_B_MISO (I)
8: Reserved
9: Reserved
26:24
GPIO6
Aux. mode of GPIO_6
0: GPIO6 (IO)
1: EINT5 (I)
2: MC1_A_DA0 (IO)
3: SLA_EDIWS (I)
4: U2RXD (I)
5: Reserved
6: Reserved
7: MA_SPI0_B_MOSI (O)
8: Reserved
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
9: Reserved
22:20
GPIO5
Aux. mode of GPIO_5
0: GPIO5 (IO)
1: EINT4 (I)
2: MC1_A_CM0 (IO)
3: SLA_EDIDI (I)
4: Reserved
5: Reserved
6: U1TXD (O)
7: MA_SPI0_B_SCK (O)
8: Reserved
9: Reserved
18:16
GPIO4
Aux. mode of GPIO_4
0: GPIO4 (IO)
1: EINT3 (I)
2: MC1_A_CK (IO)
3: SLA_EDIDO (O)
4: Reserved
5: Reserved
6: U1RXD (I)
7: MA_SPI0_B_CS (O)
8: Reserved
9: Reserved
15:12
GPIO3
Aux. mode of GPIO_3
0: GPIO3 (IO)
1: EINT14 (I)
2: AUXADCIN_3 (AIO)
3: U3TXD (I)
4: U0RTS (O)
5: MA_SPI1_A_MISO (I)
6: MA_EDICK (O)
7: MA_SPI0_A_MISO (I)
8: DEBUGMON14 (IO)
9: BTPRI (IO)
11:8
GPIO2
Aux. mode of GPIO_2
0: GPIO2 (IO)
1: EINT2 (I)
2: AUXADCIN_2 (AIO)
3: U3RXD (I)
4: U0CTS (I)
5: MA_SPI1_A_MOSI (O)
6: MA_EDIWS (O)
7: MA_SPI0_A_MOSI (O)
8: DEBUGMON13 (IO)
9: BT_BUCK_EN_HW (O)
7:4
GPIO1
Aux. mode of GPIO_1
0: GPIO1 (IO)
1: EINT1 (I)
2: AUXADCIN_1 (AIO)
3: U2TXD (O)
4: PWM1 (O)
5: MA_SPI1_A_SCK (O)
6: MA_EDIDI (I)
7: MA_SPI0_A_SCK (O)
8: DEBUGMON12 (IO)
9: BTDBGACKN (I)
3:0
GPIO0
Aux. mode of GPIO_0
0: GPIO0 (IO)
1: EINT0 (I)
2: AUXADCIN_0 (AIO)
3: U2RXD (I)
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A2020C04
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPIO_MODE0
GPIO Mode Control
_SET
31
30
15
14
0
Overview
Description
4: PWM0 (O)
5: MA_SPI1_A_CS (O)
6: MA_EDIDO (O)
7: MA_SPI0_A_CS (O)
8: DEBUGMON11 (IO)
9: BTJTDI (O)
0
29
28
13
GPIO7
WO
0
GPIO3
WO
0
0
27
26
12
11
10
0
0
0
0
00000000
25
24
9
8
7
0
0
GPIO6
WO
0
GPIO2
WO
0
0
0
23
22
0
6
21
20
5
4
3
0
0
GPIO5
WO
0
GPIO1
WO
0
0
0
19
18
0
2
16
1
0
GPIO0
WO
0
0
0
0
For bitwise access of GPIO_MODE0
Bit(s) Mnemonic Name
Description
30:28
GPIO7
Bitwise SET operation for Aux. mode of GPIO_7
0: Keep
1: SET bits
26:24
GPIO6
Bitwise SET operation for Aux. mode of GPIO_6
0: Keep
1: SET bits
22:20
GPIO5
Bitwise SET operation for Aux. mode of GPIO_5
0: Keep
1: SET bits
18:16
GPIO4
Bitwise SET operation for Aux. mode of GPIO_4
0: Keep
1: SET bits
15:12
GPIO3
Bitwise SET operation for Aux. mode of GPIO_3
0: Keep
1: SET bits
11:8
GPIO2
Bitwise SET operation for Aux. mode of GPIO_2
0: Keep
1: SET bits
7:4
GPIO1
Bitwise SET operation for Aux. mode of GPIO_1
0: Keep
1: SET bits
3:0
GPIO0
Bitwise SET operation for Aux. mode of GPIO_0
0: Keep
1: SET bits
A2020C08
Bit
Name
Type
Reset
Bit
17
GPIO4
WO
0
GPIO_MODE0
GPIO Mode Control
_CLR
31
30
15
14
0
29
28
13
12
GPIO7
WO
0
0
27
26
11
10
0
25
24
9
8
GPIO6
WO
0
0
00000000
23
7
22
0
6
21
20
5
4
GPIO5
WO
0
© 2015 - 2018 Airoha Technology Corp.
0
19
3
18
0
2
17
16
1
0
GPIO4
WO
0
0
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MT2523 Series Reference Manual
Name
Type
Reset
0
Overview
GPIO3
WO
0
0
0
0
GPIO2
WO
0
0
0
0
GPIO1
WO
0
0
0
0
GPIO0
WO
0
0
For bitwise access of GPIO_MODE0
Bit(s) Mnemonic Name
Description
30:28
GPIO7
Bitwise CLR operation for Aux. mode of GPIO_7
0: Keep
1: CLR bits
26:24
GPIO6
Bitwise CLR operation for Aux. mode of GPIO_6
0: Keep
1: CLR bits
22:20
GPIO5
Bitwise CLR operation for Aux. mode of GPIO_5
0: Keep
1: CLR bits
18:16
GPIO4
Bitwise CLR operation for Aux. mode of GPIO_4
0: Keep
1: CLR bits
15:12
GPIO3
Bitwise CLR operation for Aux. mode of GPIO_3
0: Keep
1: CLR bits
11:8
GPIO2
Bitwise CLR operation for Aux. mode of GPIO_2
0: Keep
1: CLR bits
7:4
GPIO1
Bitwise CLR operation for Aux. mode of GPIO_1
0: Keep
1: CLR bits
3:0
GPIO0
Bitwise CLR operation for Aux. mode of GPIO_0
0: Keep
1: CLR bits
A2020C10
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
0
GPIO_MODE1 GPIO Mode Control
31
30
15
14
29
28
13
0
GPIO15
RW
0
0
GPIO11
RW
0
27
26
12
11
10
0
0
0
0
25
24
9
8
GPIO14
RW
0
GPIO10
RW
0
0
0
00000000
23
7
0
22
21
0
GPIO13
RW
0
0
GPIO9
RW
0
6
5
20
0
4
0
19
3
18
17
16
1
0
0
GPIO12
RW
0
0
GPIO8
RW
0
2
0
0
Configures GPIO aux. mode
Bit(s) Mnemonic Name
Description
30:28
Aux. mode of GPIO_15
0: GPIO15 (IO)
1: EINT13 (I)
2: Reserved
3: Reserved
4: Reserved
5: PWM4 (O)
6: Reserved
7: Reserved
8: Reserved
9: Reserved
GPIO15
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
26:24
GPIO14
Aux. mode of GPIO_14
0: GPIO14 (IO)
1: EINT12 (I)
2: CLKO4 (O)
3: MA_EDICK (O)
4: MA_SPI1_B_MISO (O)
5: PWM3 (O)
6: SLA_EDICK (I)
7: Reserved
8: Reserved
9: Reserved
22:20
GPIO13
Aux. mode of GPIO_13
0: GPIO13 (IO)
1: EINT11 (I)
2: CLKO3 (O)
3: MA_EDIWS (O)
4: MA_SPI1_B_MOSI (O)
5: PWM2 (O)
6: SLA_EDIWS (I)
7: Reserved
8: Reserved
9: Reserved
18:16
GPIO12
Aux. mode of GPIO_12
0: GPIO12 (IO)
1: EINT10 (I)
2: Reserved
3: MA_EDIDI (I)
4: MA_SPI1_B_SCK (O)
5: PWM1 (O)
6: SLA_EDIDI (I)
7: Reserved
8: Reserved
9: Reserved
14:12
GPIO11
Aux. mode of GPIO_11
0: GPIO11 (IO)
1: EINT9 (I)
2: BT_BUCK_EN_HW (O)
3: MA_EDIDO (O)
4: MA_SPI1_B_CS (O)
5: PWM0 (O)
6: SLA_EDIDO (O)
7: Reserved
8: Reserved
9: Reserved
11:8
GPIO10
Aux. mode of GPIO_10
0: GPIO10 (IO)
1: EINT15 (I)
2: AUXADCIN_4(AIO)
3: Reserved
4: Reserved
5: Reserved
6: Reserved
7: Reserved
8: DEBUGMON15(IO)
9: BTPRI(IO)
6:4
GPIO9
Aux. mode of GPIO_9
0: GPIO9 (IO)
1: EINT8 (I)
2: MC1_A_DA3 (IO)
3: Reserved
4: Reserved
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
2:0
Overview
Aux. mode of GPIO_8
0: GPIO8 (IO)
1: EINT7 (I)
2: MC1_A_DA2 (IO)
3: Reserved
4: Reserved
5: Reserved
6: SCL2 (IO)
7: Reserved
8: Reserved
9: Reserved
GPIO8
A2020C14
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
5: Reserved
6: SDA2 (IO)
7: Reserved
8: Reserved
9: Reserved
GPIO_MODE1_
GPIO Mode Control
SET
31
30
15
14
29
28
13
0
GPIO15
WO
0
0
GPIO11
WO
0
27
26
12
11
10
0
0
0
0
25
24
9
8
GPIO14
WO
0
GPIO10
WO
0
0
0
0
00000000
23
7
22
21
0
GPIO13
WO
0
0
GPIO9
WO
0
6
5
20
0
4
0
19
3
18
17
16
1
0
0
GPIO12
WO
0
0
GPIO8
WO
0
2
0
0
For bitwise access of GPIO_MODE1
Bit(s) Mnemonic Name
Description
30:28
GPIO15
Bitwise SET operation for Aux. mode of KCOL1
0: Keep
1: SET bits
26:24
GPIO14
Bitwise SET operation for Aux. mode of KCOL2
0: Keep
1: SET bits
22:20
GPIO13
Bitwise SET operation for Aux. mode of KCOL3
0: Keep
1: SET bits
18:16
GPIO12
Bitwise SET operation for Aux. mode of KCOL4
0: Keep
1: SET bits
14:12
GPIO11
Bitwise SET operation for Aux. mode of UTXD1
0: Keep
1: SET bits
11:8
GPIO10
Bitwise SET operation for Aux. mode of URXD1
0: Keep
1: SET bits
6:4
GPIO9
Bitwise SET operation for Aux. mode of GPIO_9
0: Keep
1: SET bits
2:0
GPIO8
Bitwise SET operation for Aux. mode of GPIO_8
0: Keep
1: SET bits
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MT2523 Series Reference Manual
A2020C18
Bit
Name
Type
Reset
Bit
Name
Type
Reset
GPIO_MODE1_
GPIO Mode Control
CLR
31
30
15
14
Overview
29
28
13
0
GPIO15
WO
0
0
GPIO11
WO
0
27
26
12
11
10
0
0
0
0
25
24
9
8
GPIO14
WO
0
GPIO10
WO
0
0
0
00000000
23
22
7
0
0
GPIO9
WO
0
6
0
21
GPIO13
WO
0
5
20
0
4
19
3
0
18
1
0
0
GPIO8
WO
0
2
0
0
For bitwise access of GPIO_MODE1
Description
30:28
GPIO15
Bitwise CLR operation for Aux. mode of KCOL1
0: Keep
1: CLR bits
26:24
GPIO14
Bitwise CLR operation for Aux. mode of KCOL2
0: Keep
1: CLR bits
22:20
GPIO13
Bitwise CLR operation for Aux. mode of KCOL3
0: Keep
1: CLR bits
18:16
GPIO12
Bitwise CLR operation for Aux. mode of KCOL4
0: Keep
1: CLR bits
14:12
GPIO11
Bitwise CLR operation for Aux. mode of UTXD1
0: Keep
1: CLR bits
11:8
GPIO10
Bitwise CLR operation for Aux. mode of URXD1
0: Keep
1: CLR bits
6:4
GPIO9
Bitwise CLR operation for Aux. mode of GPIO_9
0: Keep
1: CLR bits
2:0
GPIO8
Bitwise CLR operation for Aux. mode of GPIO_8
0: Keep
1: CLR bits
A2020C20 GPIO_MODE2 GPIO Mode Control
Overview
16
0
Bit(s) Mnemonic Name
Bit
Name
Type
Reset
Bit
Name
Type
Reset
17
GPIO12
WO
0
31
0
15
0
30
29
28
14
13
12
11
0
0
GPIO23
RW
0
0
GPIO19
RW
0
0
0
27
0
00000011
26
25
24
23
10
9
8
0
0
GPIO22
RW
0
0
GPIO18
RW
0
0
22
21
20
6
5
4
7
0
GPIO21
RW
0
0
0
GPIO17
RW
0
0
1
19
18
3
2
17
16
1
0
GPIO20
RW
0
0
0
0
GPIO16
RW
0
1
Configures GPIO aux. mode
Bit(s) Mnemonic Name
Description
31:28
Aux. mode of GPIO_23
GPIO23
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: GPIO23 (IO)
1: KROW0 (IO)
2: EINT19 (I)
3: CLKO0 (O)
4: U1CTS(I)
5: TRACEDATA3 (O)
6: MC_RST (O)
7: DEBUGMON9 (IO)
8: JTRST_B (I)
9: BTJTRSTB (I)
27:24
GPIO22
Aux. mode of GPIO_22
0: GPIO22 (IO)
1: KROW1 (IO)
2: U1TXD (O)
3: U3TXD (O)
4: Reserved
5: TRACEDATA2 (O)
6: TRACE_SWV (O)
7: DEBUGMON5 (IO)
8: JTDO (O)
9: BTDBGIN (I)
23:20
GPIO21
Aux. mode of GPIO_21
0: GPIO21 (IO)
1: KROW2 (IO)
2: Reserved
3: GPCOUNTER_0 (I)
4: U1RTS (O)
5: TRACECLK (O)
6: Reserved
7: DEBUGMON4 (IO)
8: JTCK (I)
9: BTJTCK (I)
18:16
GPIO20
Aux. mode of GPIO_20
0: GPIO20 (IO)
1: KCOL0 (IO)
2: GPSFSYNC (O)
3: U0CTS (I)
4: SDA2 (IO)
5: Reserved
6: MA_SPI2_CS1(O)
7: DEBUGMON7 (IO)
8: Reserved
9: Reserved
15:12
GPIO19
Aux. mode of GPIO_19
0: GPIO19 (IO)
1: KCOL1 (IO)
2: EINT18 (I)
3: U0RTS (O)
4: SCL2 (IO)
5: TRACEDATA1 (O)
6: Reserved
7: DEBUGMON2 (IO)
8: JTMS (IO)
9: BTJTMS (IO)
11:8
GPIO18
Aux. mode of GPIO_18
0: GPIO18 (IO)
1: KCOL2 (IO)
2: U1RXD (I)
3: U3RXD (I)
4: Reserved
5: TRACEDATA0 (O)
6: LSCE1_B1 (O)
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
7: DEBUGMON6 (IO)
8: JTDI (I)
9: BTJTDI (IO)
6:4
GPIO17
Aux. mode of GPIO_17
0: GPIO17 (IO)
1: U0TXD (O)
2: Reserved
3: EINT17 (I)
4: Reserved
5: Reserved
6: DEBUGMIN_CK (I)
7: Reserved
8: Reserved
9: Reserved
2:0
GPIO16
Aux. mode of GPIO_16
0: GPIO16 (IO)
1: U0RXD (I)
2: Reserved
3: EINT16 (I)
4: Reserved
5: Reserved
6: DEBUGMIN0 (I)
7: DEBUGMON0 (IO)
8: Reserved
9: Reserved
A2020C24
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
31
0
15
0
GPIO_MODE2
GPIO Mode Control
_SET
30
29
28
14
13
12
11
0
0
GPIO23
WO
0
0
GPIO19
WO
0
0
0
27
0
00000000
26
25
24
23
10
9
8
0
0
GPIO22
WO
0
0
GPIO18
WO
0
0
0
7
22
21
20
6
5
4
GPIO21
WO
0
0
0
GPIO17
WO
0
0
0
19
18
3
2
17
16
1
0
GPIO20
WO
0
0
0
GPIO16
WO
0
0
0
For bitwise access of GPIO_MODE2
Bit(s) Mnemonic Name
Description
31:28
GPIO23
Bitwise SET operation for Aux. mode of BPI_BUS1
0: Keep
1: SET bits
27:24
GPIO22
Bitwise SET operation for Aux. mode of BPI_BUS2
0: Keep
1: SET bits
23:20
GPIO21
Bitwise SET operation for Aux. mode of KROW0
0: Keep
1: SET bits
18:16
GPIO20
Bitwise SET operation for Aux. mode of KROW1
0: Keep
1: SET bits
15:12
GPIO19
Bitwise SET operation for Aux. mode of KROW2
0: Keep
1: SET bits
11:8
GPIO18
Bitwise SET operation for Aux. mode of KROW3
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: SET bits
6:4
GPIO17
Bitwise SET operation for Aux. mode of KROW4
0: Keep
1: SET bits
2:0
GPIO16
Bitwise SET operation for Aux. mode of KCOL0
0: Keep
1: SET bits
A2020C28
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
15
0
Overview
GPIO_MODE2
GPIO Mode Control
_CLR
30
29
28
14
13
12
11
0
0
GPIO23
WO
0
0
GPIO19
WO
0
0
0
27
0
00000000
26
25
24
23
10
9
8
0
0
GPIO22
WO
0
0
GPIO18
WO
0
0
7
0
22
21
20
6
5
4
GPIO21
WO
0
0
0
GPIO17
WO
0
0
19
18
3
2
0
16
1
0
GPIO16
WO
0
0
0
For bitwise access of GPIO_MODE2
Bit(s) Mnemonic Name
Description
31:28
GPIO23
Bitwise CLR operation for Aux. mode of BPI_BUS1
0: Keep
1: CLR bits
27:24
GPIO22
Bitwise CLR operation for Aux. mode of BPI_BUS2
0: Keep
1: CLR bits
23:20
GPIO21
Bitwise CLR operation for Aux. mode of KROW0
0: Keep
1: CLR bits
18:16
GPIO20
Bitwise CLR operation for Aux. mode of KROW1
0: Keep
1: CLR bits
15:12
GPIO19
Bitwise CLR operation for Aux. mode of KROW2
0: Keep
1: CLR bits
11:8
GPIO18
Bitwise CLR operation for Aux. mode of KROW3
0: Keep
1: CLR bits
6:4
GPIO17
Bitwise CLR operation for Aux. mode of KROW4
0: Keep
1: CLR bits
2:0
GPIO16
Bitwise CLR operation for Aux. mode of KCOL0
0: Keep
1: CLR bits
A2020C30 GPIO_MODE3 GPIO Mode Control
Bit
Name
Type
17
GPIO20
WO
0
0
0
31
30
29
GPIO31
RW
28
27
26
25
GPIO30
RW
24
00000000
23
22
21
GPIO29
RW
© 2015 - 2018 Airoha Technology Corp.
20
19
18
17
GPIO28
RW
16
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MT2523 Series Reference Manual
Reset
Bit
Name
Type
Reset
Overview
0
15
0
0
14
0
13
GPIO27
RW
0
0
0
0
12
11
0
0
0
10
0
9
GPIO26
RW
0
0
0
8
0
0
0
0
GPIO25
RW
0
0
7
6
0
5
0
4
0
0
0
0
GPIO24
RW
0
0
3
0
2
1
0
0
0
Configures GPIO aux. mode
Bit(s) Mnemonic Name
Description
31:28
GPIO31
Aux. mode of GPIO_31
0: GPIO31 (IO)
1: SDA0 (IO)
2: EINT12 (I)
3: PWM1 (O)
4: U1TXD (I)
5: MC0_CM0 (IO)
6: DEBUGMIN1 (I)
7: DEBUGMON1 (IO)
8: BT_RGPIO1 (IO)
9: SDA2 (IO)
27:24
GPIO30
Aux. mode of GPIO_30
0: GPIO30 (IO)
1: SCL0 (IO)
2: EINT11 (I)
3: PWM0 (O)
4: U1RXD (I)
5: MC0_CK (IO)
6: BT_RGPIO0 (IO)
7: DEBUGMON0 (IO)
8: Reserved
9: SCL2 (IO)
23:20
GPIO29
Aux. mode of GPIO_29
0: GPIO29 (IO)
1: CMCSK (I)
2: LPTE (I)
3: Reserved
4: CMCSD2 (I)
5: EINT10 (I)
6: Reserved
7: DEBUGMON15 (IO)
8: MC1_B_DA1(IO)
9: BT_RGPIO2 (IO)
19:16
GPIO28
Aux. mode of GPIO_28
0: GPIO28 (IO)
1: CMMCLK (O)
2: LSA0DA1 (O)
3: DAISYNC (O)
4: MA_SPI2_A_MISO (I)
5: MA_SPI3_A_MISO (I)
6: JTDO (O)
7: DEBUGMON14 (IO)
8: MC1_B_DA0(IO)
9: SLV_SPI0_MISO (O)
15:12
GPIO27
Aux. mode of GPIO_27
0: GPIO27 (IO)
1: CMCSD1 (O)
2: LSDA1 (IO)
3: DAIPCMOUT (I)
4: MA_SPI2_A_MOSI (O)
5: MA_SPI3_A_MOSI (O)
6: JTRST_B (I)
7: DEBUGMON13 (IO)
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
8: MC1_B_CK(IO)
9: SLV_SPI0_MOSI (I)
11:8
GPIO26
Aux. mode of GPIO_26
0: GPIO26 (IO)
1: CMCSD0 (O)
2: LSCE_B1 (O)
3: DAIPCMIN (I)
4: MA_SPI2_A_SCK (O)
5: MA_SPI3_A_SCK (O)
6: JTCK (I)
7: DEBUGMON12 (IO)
8: MC1_B_CM0 (IO)
9: SLV_SPI0_SCK (I)
7:4
GPIO25
Aux. mode of GPIO_25
0: GPIO25 (IO)
1: CMPDN (O)
2: LSCK1 (O)
3: DAICLK (O)
4: MA_SPI2_A_CS (O)
5: MA_SPI3_A_CS (O)
6: JTMS (IO)
7: DEBUGMON11 (IO)
8: MC1_B_DA2 (IO)
9: SLV_SPI0_CS (I)
3:0
GPIO24
Aux. mode of GPIO_24
0: GPIO24 (IO)
1: CMRST (O)
2: LSRSTB (O)
3: CLKO1 (O)
4: EINT9 (I)
5: GPCOUNTER_0 (I)
6: JTDI (I)
7: DEBUGMON10 (IO)
8: MC1_B_DA3 (IO)
9: Reserved
A2020C34
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
31
0
15
0
GPIO_MODE3
GPIO Mode Control
_SET
30
29
28
14
13
12
11
0
0
GPIO31
WO
0
0
GPIO27
WO
0
0
0
27
0
00000000
26
25
24
23
10
9
8
0
0
GPIO29
WO
0
0
0
GPIO25
WO
0
0
GPIO30
WO
0
0
GPIO26
WO
0
0
0
7
22
21
20
19
6
5
4
0
0
GPIO28
WO
0
0
0
GPIO24
WO
0
0
0
18
17
16
2
1
0
3
0
0
For bitwise access of GPIO_MODE3
Bit(s) Mnemonic Name
Description
31:28
GPIO31
Bitwise SET operation for Aux. mode of MCCK
0: Keep
1: SET bits
27:24
GPIO30
Bitwise SET operation for Aux. mode of CMCSK
0: Keep
1: SET bits
23:20
GPIO29
Bitwise SET operation for Aux. mode of CMMCLK
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
0: Keep
1: SET bits
19:16
GPIO28
Bitwise SET operation for Aux. mode of CMCSD1
0: Keep
1: SET bits
15:12
GPIO27
Bitwise SET operation for Aux. mode of CMCSD0
0: Keep
1: SET bits
11:8
GPIO26
Bitwise SET operation for Aux. mode of CMPDN
0: Keep
1: SET bits
7:4
GPIO25
Bitwise SET operation for Aux. mode of CMRST
0: Keep
1: SET bits
3:0
GPIO24
Bitwise SET operation for Aux. mode of BPI_BUS0
0: Keep
1: SET bits
A2020C38
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
31
0
15
0
GPIO_MODE3
GPIO Mode Control
_CLR
30
29
28
14
13
12
11
0
0
GPIO31
WO
0
0
GPIO27
WO
0
0
0
27
0
00000000
26
25
24
23
10
9
8
0
0
GPIO29
WO
0
0
0
GPIO25
WO
0
0
GPIO30
WO
0
0
GPIO26
WO
0
0
0
7
22
21
20
19
6
5
4
0
0
GPIO28
WO
0
0
0
GPIO24
WO
0
0
0
3
18
17
16
2
1
0
0
0
For bitwise access of GPIO_MODE3
Bit(s) Mnemonic Name
Description
31:28
GPIO31
Bitwise CLR operation for Aux. mode of MCCK
0: Keep
1: CLR bits
27:24
GPIO30
Bitwise CLR operation for Aux. mode of CMCSK
0: Keep
1: CLR bits
23:20
GPIO29
Bitwise CLR operation for Aux. mode of CMMCLK
0: Keep
1: CLR bits
19:16
GPIO28
Bitwise CLR operation for Aux. mode of CMCSD1
0: Keep
1: CLR bits
15:12
GPIO27
Bitwise CLR operation for Aux. mode of CMCSD0
0: Keep
1: CLR bits
11:8
GPIO26
Bitwise CLR operation for Aux. mode of CMPDN
0: Keep
1: CLR bits
7:4
GPIO25
Bitwise CLR operation for Aux. mode of CMRST
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
3:0
Description
Bitwise CLR operation for Aux. mode of BPI_BUS0
0: Keep
1: CLR bits
GPIO24
A2020C40 GPIO_MODE4 GPIO Mode Control
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
31
0
15
0
30
29
28
14
13
12
11
1
0
GPIO39
RW
0
0
GPIO35
RW
0
0
1
27
0
10001111
26
25
24
10
9
8
7
1
0
GPIO38
RW
0
0
GPIO34
RW
0
0
0
23
22
0
6
21
20
5
GPIO37
RW
0
GPIO33
RW
0
0
19
18
17
16
4
3
2
1
0
1
0
0
GPIO36
RW
0
0
GPIO32
RW
0
0
0
1
Configures GPIO aux. mode
Bit(s) Mnemonic Name
Description
31:28
GPIO39
Aux. mode of GPIO_39
0: GPIO39 (IO)
1: LSCE_B0 (O)
2: EINT4 (I)
3: CMCSD0 (I)
4: CLKO4 (O)
5: SFSCS0 (O)
6: DEBUGMIN5 (I)
7: DEBUGMON5 (IO)
8: SCL1 (IO)
9: MA_SPI2_B_CS (O)
27:24
GPIO38
Aux. mode of GPIO_38
0: GPIO38 (IO)
1: LSRSTB (O)
2: Reserved
3: CMRST (O)
4: CLKO3 (O)
5: SFSWP (O)
6: Reserved
7: DEBUGMON9 (IO)
8: Reserved
9: SCL1(IO)
22:20
GPIO37
Aux. mode of GPIO_37
0: GPIO37 (IO)
1: SDA0 (IO)
2: SDA1 (IO)
3: Reserved
4: Reserved
5: Reserved
6: DEBUGMIN4 (I)
7: DEBUGMON4 (IO)
8: Reserved
9: Reserved
18:16
GPIO36
Aux. mode of GPIO_36
0: GPIO36 (IO)
1: SCL0 (IO)
2: SCL1 (IO)
3: Reserved
4: Reserved
5: Reserved
6: DEBUGMIN3 (I)
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
7: DEBUGMON3 (IO)
8: Reserved
9: Reserved
15:12
GPIO35
Aux. mode of GPIO_35
0: GPIO35 (IO)
1: SLV_SPI0_MISO (I)
2: EINT3 (I)
3: PWM5 (O)
4: DAIPCMOUT (I)
5: MC0_DA3 (IO)
6: CLKO2 (O)
7: BT_RGPIO5 (IO)
8: Reserved
9: MA_SPI3_B_MISO (I)
11:8
GPIO34
Aux. mode of GPIO_34
0: GPIO34 (IO)
1: SLV_SPI0_MOSI (I)
2: EINT15 (I)
3: PWM4 (O)
4: DAICLK (I)
5: MC0_DA2 (IO)
6: BT_RGPIO4 (IO)
7: DEBUGMON4 (IO)
8: Reserved
9: MA_SPI3_B_MOSI (O)
7:4
GPIO33
Aux. mode of GPIO_33
0: GPIO33 (IO)
1: SLV_SPI0_SCK (I)
2: EINT14 (I)
3: PWM3 (O)
4: DAIPCMIN (I)
5: MC0_DA1 (IO)
6: BT_RGPIO3 (IO)
7: DEBUGMON3 (IO)
8: Reserved
9: MA_SPI3_B_SCK (O)
3:0
GPIO32
Aux. mode of GPIO_32
0: GPIO32 (IO)
1: SLV_SPI0_CS (I)
2: EINT13 (I)
3: PWM2 (O)
4: DAISYNC (O)
5: MC0_DA0 (IO)
6: DEBUGMIN2 (I)
7: DEBUGMON2 (IO)
8: Reserved
9: MA_SPI3_B_CS (O)
A2020C44
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
0
15
0
GPIO_MODE4
GPIO Mode Control
_SET
30
29
28
14
13
12
11
0
0
GPIO39
WO
0
0
GPIO35
WO
0
0
0
27
0
00000000
26
25
24
10
9
8
7
0
0
GPIO38
WO
0
0
GPIO34
WO
0
0
0
23
22
0
6
21
20
5
GPIO37
WO
0
GPIO33
WO
0
0
© 2015 - 2018 Airoha Technology Corp.
19
18
17
16
4
3
2
1
0
0
0
0
GPIO36
WO
0
0
GPIO32
WO
0
0
0
0
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MT2523 Series Reference Manual
Overview
For bitwise access of GPIO_MODE4
Bit(s) Mnemonic Name
Description
31:28
GPIO39
Bitwise SET operation for Aux. mode of SIM1_SCLK
0: Keep
1: SET bits
27:24
GPIO38
Bitwise SET operation for Aux. mode of SIM1_SRST
0: Keep
1: SET bits
22:20
GPIO37
Bitwise SET operation for Aux. mode of SIM1_SIO
0: Keep
1: SET bits
18:16
GPIO36
Bitwise SET operation for Aux. mode of MCDA3
0: Keep
1: SET bits
15:12
GPIO35
Bitwise SET operation for Aux. mode of MCDA2
0: Keep
1: SET bits
11:8
GPIO34
Bitwise SET operation for Aux. mode of MCDA1
0: Keep
1: SET bits
7:4
GPIO33
Bitwise SET operation for Aux. mode of MCDA0
0: Keep
1: SET bits
3:0
GPIO32
Bitwise SET operation for Aux. mode of MCCM0
0: Keep
1: SET bits
A2020C48
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
31
0
15
0
GPIO_MODE4
GPIO Mode Control
_CLR
30
29
28
14
13
12
11
0
0
GPIO39
WO
0
0
GPIO35
WO
0
0
0
27
0
00000000
26
25
24
10
9
8
7
0
0
GPIO38
WO
0
0
GPIO34
WO
0
0
0
23
22
0
6
21
20
5
GPIO37
WO
0
GPIO33
WO
0
0
19
18
17
16
4
3
2
1
0
0
0
0
GPIO36
WO
0
0
GPIO32
WO
0
0
0
0
For bitwise access of GPIO_MODE4
Bit(s) Mnemonic Name
Description
31:28
GPIO39
Bitwise CLR operation for Aux. mode of SIM1_SCLK
0: Keep
1: CLR bits
27:24
GPIO38
Bitwise CLR operation for Aux. mode of SIM1_SRST
0: Keep
1: CLR bits
22:20
GPIO37
Bitwise CLR operation for Aux. mode of SIM1_SIO
0: Keep
1: CLR bits
18:16
GPIO36
Bitwise CLR operation for Aux. mode of MCDA3
0: Keep
1: CLR bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
15:12
GPIO35
Bitwise CLR operation for Aux. mode of MCDA2
0: Keep
1: CLR bits
11:8
GPIO34
Bitwise CLR operation for Aux. mode of MCDA1
0: Keep
1: CLR bits
7:4
GPIO33
Bitwise CLR operation for Aux. mode of MCDA0
0: Keep
1: CLR bits
3:0
GPIO32
Bitwise CLR operation for Aux. mode of MCCM0
0: Keep
1: CLR bits
A2020C50
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_MODE5 GPIO Mode Control
31
30
15
14
0
0
29
28
13
GPIO47
RW
0
GPIO43
RW
0
0
27
26
12
11
10
0
0
0
0
00000000
25
24
23
9
8
7
0
0
GPIO46
RW
0
0
GPIO42
RW
0
0
22
0
6
21
20
19
5
4
0
0
GPIO44
RW
0
0
0
GPIO40
RW
0
0
GPIO45
RW
0
GPIO41
RW
0
0
0
3
18
17
16
2
1
0
0
0
Configures GPIO aux. mode
Bit(s) Mnemonic Name
Description
30:28
GPIO47
Aux. mode of GPIO_47
0: GPIO47 (IO)
1: MA_SPI1_CS1 (O)
2: Reserved
3: Reserved
4: Reserved
5: Reserved
6: Reserved
7: DEBUGMON2 (IO)
8: Reserved
9: Reserved
26:24
GPIO46
Aux. mode of GPIO_46
0: GPIO46 (IO)
1: MA_SPI0_CS1 (O)
2: Reserved
3: Reserved
4: Reserved
5: Reserved
6: Reserved
7: DEBUGMON1 (IO)
8: Reserved
9: Reserved
22:20
GPIO45
Aux. mode of GPIO_45
0: GPIO45 (IO)
1: SRCLKENAI (I)
2: Reserved
3: Reserved
4: Reserved
5: Reserved
6: Reserved
7: Reserved
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
8: Reserved
9: Reserved
19:16
GPIO44
Aux. mode of GPIO_44
0: GPIO44 (IO)
1: LSCE1_B1 (O)
2: DISP_PWM (O)
3: Reserved
4: Reserved
5: Reserved
6: Reserved
7: DEBUGMON0 (IO)
8: DEBUGMON6 (IO)
9: Reserved
15:12
GPIO43
Aux. mode of GPIO_43
0: GPIO43 (IO)
1: LPTE (I)
2: EINT6 (I)
3: CMCSK (I)
4: CMCSD2 (I)
5: SFSIN (O)
6: Reserved
7: DEBUGMON7 (IO)
8: DEBUGMIN7 (I)
9: SDA1 (IO)
11:8
GPIO42
Aux. mode of GPIO_42
0: GPIO42 (IO)
1: LSA0DA0 (O)
2: LSCE1_B0 (O)
3: CMMCLK (O)
4: Reserved
5: SFSOUT (O)
6: Reserved
7: DEBUGMON8 (IO)
8: CLKO5 (O)
9: MA_SPI2_B_MISO (O)
7:4
GPIO41
Aux. mode of GPIO_41
0: GPIO41 (IO)
1: LSDA0 (IO)
2: EINT5 (I)
3: CMCSD1 (I)
4: WIFITOBT (I)
5: SFSCK (O)
6: DEBUGMIN6 (I)
7: DEBUGMON6 (IO)
8: SDA1 (IO)
9: MA_SPI2_B_MOSI (O)
3:0
GPIO40
Aux. mode of GPIO_40
0: GPIO40 (IO)
1: LSCK0 (O)
2: Reserved
3: CMPDN (O)
4: Reserved
5: SFSHOLD (O)
6: Reserved
7: DEBUGMON10 (IO)
8: Reserved
9: MA_SPI2_B_SCK (O)
A2020C54
GPIO_MODE5 GPIO Mode Control
© 2015 - 2018 Airoha Technology Corp.
00000000
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MT2523 Series Reference Manual
_SET
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
15
14
0
Overview
0
29
28
13
GPIO47
WO
0
GPIO43
WO
0
0
27
26
12
11
10
0
0
0
0
25
24
23
9
8
7
0
0
GPIO46
WO
0
0
GPIO42
WO
0
0
22
0
6
21
20
19
5
4
0
0
GPIO44
WO
0
0
0
GPIO40
WO
0
0
GPIO45
WO
0
GPIO41
WO
0
0
0
3
18
17
16
2
1
0
Description
30:28
GPIO47
Bitwise SET operation for Aux. mode of LSCK
0: Keep
1: SET bits
26:24
GPIO46
Bitwise SET operation for Aux. mode of LSCE_B
0: Keep
1: SET bits
22:20
GPIO45
Bitwise SET operation for Aux. mode of LSRSTB
0: Keep
1: SET bits
19:16
GPIO44
Bitwise SET operation for Aux. mode of SDA28
0: Keep
1: SET bits
15:12
GPIO43
Bitwise SET operation for Aux. mode of SCL28
0: Keep
1: SET bits
11:8
GPIO42
Bitwise SET operation for Aux. mode of SIM2_SCLK
0: Keep
1: SET bits
7:4
GPIO41
Bitwise SET operation for Aux. mode of SIM2_SRST
0: Keep
1: SET bits
3:0
GPIO40
Bitwise SET operation for Aux. mode of SIM2_SIO
0: Keep
1: SET bits
A2020C58
Overview
0
For bitwise access of GPIO_MODE5
Bit(s) Mnemonic Name
Bit
Name
Type
Reset
Bit
Name
Type
Reset
0
GPIO_MODE5
GPIO Mode Control
_CLR
31
30
15
14
0
0
29
28
13
GPIO47
WO
0
GPIO43
WO
0
0
27
26
12
11
10
0
0
0
0
00000000
25
24
23
9
8
7
0
0
GPIO46
WO
0
0
GPIO42
WO
0
0
22
0
6
21
20
19
5
4
0
0
GPIO44
WO
0
0
0
GPIO40
WO
0
0
GPIO45
WO
0
GPIO41
WO
0
0
0
3
18
17
16
2
1
0
0
0
For bitwise access of GPIO_MODE5
Bit(s) Mnemonic Name
Description
30:28
Bitwise CLR operation for Aux. mode of LSCK
0: Keep
1: CLR bits
GPIO47
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
26:24
GPIO46
Bitwise CLR operation for Aux. mode of LSCE_B
0: Keep
1: CLR bits
22:20
GPIO45
Bitwise CLR operation for Aux. mode of LSRSTB
0: Keep
1: CLR bits
19:16
GPIO44
Bitwise CLR operation for Aux. mode of SDA28
0: Keep
1: CLR bits
15:12
GPIO43
Bitwise CLR operation for Aux. mode of SCL28
0: Keep
1: CLR bits
11:8
GPIO42
Bitwise CLR operation for Aux. mode of SIM2_SCLK
0: Keep
1: CLR bits
7:4
GPIO41
Bitwise CLR operation for Aux. mode of SIM2_SRST
0: Keep
1: CLR bits
3:0
GPIO40
Bitwise CLR operation for Aux. mode of SIM2_SIO
0: Keep
1: CLR bits
A2020C60 GPIO_MODE6 GPIO Mode Control
Bit
Name
Type
Reset
Bit
Name
Type
Reset
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Overview
GPIO48
RW
0
0
0
Configures GPIO aux. mode
Bit(s) Mnemonic Name
2:0
Description
Aux. mode of GPIO_48
0: GPIO48 (IO)
1: MA_SPI3_CS1 (O)
2: Reserved
3: Reserved
4: Reserved
5: Reserved
6: Reserved
7: DEBUGMON5 (IO)
8: Reserved
9: Reserved
GPIO48
A2020C64
Bit
Name
Type
Reset
00011110
31
31
GPIO_MODE6
GPIO Mode Control
_SET
30
29
28
27
26
25
24
00000000
23
22
© 2015 - 2018 Airoha Technology Corp.
21
20
19
18
17
16
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit
Name
Type
Reset
15
Overview
14
13
12
11
9
8
7
6
5
4
3
2
1
2:0
Description
Bitwise SET operation for Aux. mode of LSDA
0: Keep
1: SET bits
GPIO48
A2020C68
GPIO_MODE6
GPIO Mode Control
_CLR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Overview
GPIO48
WO
0
0
0
For bitwise access of GPIO_MODE6
Bit(s) Mnemonic Name
2:0
Description
Bitwise CLR operation for Aux. mode of LSDA
0: Keep
1: CLR bits
GPIO48
A2020D00 GPIO_TDSEL0 GPIO TDSEL Control
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
0
GPIO48
WO
0
0
0
For bitwise access of GPIO_MODE6
Bit(s) Mnemonic Name
Bit
Name
Type
Reset
Bit
Name
Type
Reset
10
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO15
RW
0
0
GPIO7
RW
0
0
GPIO14
RW
0
0
GPIO13
RW
0
0
GPIO6
RW
0
0
GPIO5
RW
0
0
GPIO12
RW
0
0
GPIO4
RW
0
0
GPIO11
RW
0
0
GPIO3
RW
0
0
GPIO10
RW
0
0
GPIO2
RW
0
0
GPIO9
RW
0
0
GPIO1
RW
0
0
GPIO8
RW
0
0
GPIO0
RW
0
0
GPIO TX duty control register
Bit(s) Mnemonic Name
Description
31:30 GPIO15
GPIO15_TDSEL
GPIO15 Tx duty control
29:28 GPIO14
GPIO14_TDSEL
GPIO14 Tx duty control
27:26 GPIO13
GPIO13_TDSEL
GPIO13 Tx duty control
25:24 GPIO12
GPIO12_TDSEL
GPIO12 Tx duty control
23:22 GPIO11
GPIO11_TDSEL
GPIO11 Tx duty control
21:20 GPIO10
GPIO10_TDSEL
GPIO10 Tx duty control
19:18 GPIO9
GPIO9_TDSEL
GPIO9 Tx duty control
17:16 GPIO8
GPIO8_TDSEL
GPIO8 Tx duty control
15:14 GPIO7
GPIO7_TDSEL
GPIO7 Tx duty control
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
13:12 GPIO6
GPIO6_TDSEL
GPIO6 Tx duty control
11:10 GPIO5
GPIO5_TDSEL
GPIO5 Tx duty control
9:8
GPIO4
GPIO4_TDSEL
GPIO4 Tx duty control
7:6
GPIO3
GPIO3_TDSEL
GPIO3 Tx duty control
5:4
GPIO2
GPIO2_TDSEL
GPIO2 Tx duty control
3:2
GPIO1
GPIO1_TDSEL
GPIO1 Tx duty control
1:0
GPIO0
GPIO0_TDSEL
GPIO0 Tx duty control
A2020D04
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_TDSEL0
GPIO TDSEL Control
_SET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO15
WO
0
0
GPIO7
WO
0
0
GPIO14
WO
0
0
GPIO13
WO
0
0
GPIO6
WO
0
0
GPIO5
WO
0
0
GPIO12
WO
0
0
GPIO4
WO
0
0
GPIO11
WO
0
0
GPIO3
WO
0
0
GPIO10
WO
0
0
GPIO2
WO
0
0
GPIO9
WO
0
0
GPIO1
WO
0
0
GPIO8
WO
0
0
GPIO0
WO
0
0
For bitwise access of GPIO_TDSEL
Bit(s) Mnemonic Name
Description
31:30 GPIO15
GPIO15_TDSEL
Bitwise SET operation of GPIO15_TDSEL Tx duty control
0: Keep
1: SET bits
29:28 GPIO14
GPIO14_TDSEL
Bitwise SET operation of GPIO14_TDSEL Tx duty control
0: Keep
1: SET bits
27:26 GPIO13
GPIO13_TDSEL
Bitwise SET operation of GPIO13_TDSEL Tx duty control
0: Keep
1: SET bits
25:24 GPIO12
GPIO12_TDSEL
Bitwise SET operation of GPIO12_TDSEL Tx duty control
0: Keep
1: SET bits
23:22 GPIO11
GPIO11_TDSEL
Bitwise SET operation of GPIO11_TDSEL Tx duty control
0: Keep
1: SET bits
21:20 GPIO10
GPIO10_TDSEL
Bitwise SET operation of GPIO10_TDSEL Tx duty control
0: Keep
1: SET bits
19:18 GPIO9
GPIO9_TDSEL
Bitwise SET operation of GPIO9_TDSEL Tx duty control
0: Keep
1: SET bits
17:16 GPIO8
GPIO8_TDSEL
Bitwise SET operation of GPIO8_TDSEL Tx duty control
0: Keep
1: SET bits
15:14 GPIO7
GPIO7_TDSEL
Bitwise SET operation of GPIO7_TDSEL Tx duty control
0: Keep
1: SET bits
13:12 GPIO6
GPIO6_TDSEL
Bitwise SET operation of GPIO6_TDSEL Tx duty control
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
11:10 GPIO5
GPIO5_TDSEL
Bitwise SET operation of GPIO5_TDSEL Tx duty control
0: Keep
1: SET bits
9:8
GPIO4
GPIO4_TDSEL
Bitwise SET operation of GPIO4_TDSEL Tx duty control
0: Keep
1: SET bits
7:6
GPIO3
GPIO3_TDSEL
Bitwise SET operation of GPIO3_TDSEL Tx duty control
0: Keep
1: SET bits
5:4
GPIO2
GPIO2_TDSEL
Bitwise SET operation of GPIO2_TDSEL Tx duty control
0: Keep
1: SET bits
3:2
GPIO1
GPIO1_TDSEL
Bitwise SET operation of GPIO1_TDSEL Tx duty control
0: Keep
1: SET bits
1:0
GPIO0
GPIO0_TDSEL
Bitwise SET operation of GPIO0_TDSEL Tx duty control
0: Keep
1: SET bits
A2020D08
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_TDSEL0
GPIO TDSEL Control
_CLR
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
GPIO15
WO
0
0
GPIO7
WO
0
0
GPIO14
WO
0
0
GPIO6
WO
0
0
GPIO13
WO
0
0
GPIO5
WO
0
0
GPIO12
WO
0
0
GPIO4
WO
0
0
GPIO11
WO
0
0
GPIO3
WO
0
0
GPIO10
WO
0
0
GPIO2
WO
0
0
GPIO9
WO
0
0
GPIO1
WO
0
0
GPIO8
WO
0
0
GPIO0
WO
0
0
For bitwise access of GPIO_TDSEL
Bit(s) Mnemonic Name
Description
31:30 GPIO15
GPIO15_TDSEL
Bitwise CLR operation of GPIO15_TDSEL Tx duty control
0: Keep
1: CLR bits
29:28 GPIO14
GPIO14_TDSEL
Bitwise CLR operation of GPIO14_TDSEL Tx duty control
0: Keep
1: CLR bits
27:26 GPIO13
GPIO13_TDSEL
Bitwise CLR operation of GPIO13_TDSEL Tx duty control
0: Keep
1: CLR bits
25:24 GPIO12
GPIO12_TDSEL
Bitwise CLR operation of GPIO12_TDSEL Tx duty control
0: Keep
1: CLR bits
23:22 GPIO11
GPIO11_TDSEL
Bitwise CLR operation of GPIO11_TDSEL Tx duty control
0: Keep
1: CLR bits
21:20 GPIO10
GPIO10_TDSEL
Bitwise CLR operation of GPIO10_TDSEL Tx duty control
0: Keep
1: CLR bits
19:18 GPIO9
GPIO9_TDSEL
Bitwise CLR operation of GPIO9_TDSEL Tx duty control
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
17:16 GPIO8
GPIO8_TDSEL
Bitwise CLR operation of GPIO8_TDSEL Tx duty control
0: Keep
1: CLR bits
15:14 GPIO7
GPIO7_TDSEL
Bitwise CLR operation of GPIO7_TDSEL Tx duty control
0: Keep
1: CLR bits
13:12 GPIO6
GPIO6_TDSEL
Bitwise CLR operation of GPIO6_TDSEL Tx duty control
0: Keep
1: CLR bits
11:10 GPIO5
GPIO5_TDSEL
Bitwise CLR operation of GPIO5_TDSEL Tx duty control
0: Keep
1: CLR bits
9:8
GPIO4
GPIO4_TDSEL
Bitwise CLR operation of GPIO4_TDSEL Tx duty control
0: Keep
1: CLR bits
7:6
GPIO3
GPIO3_TDSEL
Bitwise CLR operation of GPIO3_TDSEL Tx duty control
0: Keep
1: CLR bits
5:4
GPIO2
GPIO2_TDSEL
Bitwise CLR operation of GPIO2_TDSEL Tx duty control
0: Keep
1: CLR bits
3:2
GPIO1
GPIO1_TDSEL
Bitwise CLR operation of GPIO1_TDSEL Tx duty control
0: Keep
1: CLR bits
1:0
GPIO0
GPIO0_TDSEL
Bitwise CLR operation of GPIO0_TDSEL Tx duty control
0: Keep
1: CLR bits
A2020D10
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_TDSEL1 GPIO TDSEL Control
31
30
29
28
27
26
15
14
13
12
11
10
GPIO31
RW
0
0
GPIO23
RW
0
0
GPIO30
RW
0
0
GPIO22
RW
0
0
GPIO29
RW
0
0
GPIO21
RW
0
0
00000000
25
24
23
22
21
20
19
18
9
8
7
6
5
4
3
2
GPIO28
RW
0
0
GPIO20
RW
0
0
GPIO27
RW
0
0
GPIO19
RW
0
0
GPIO26
RW
0
0
GPIO18
RW
0
0
GPIO25
RW
0
0
GPIO17
RW
0
0
17
16
1
0
GPIO24
RW
0
0
GPIO16
RW
0
0
GPIO TX duty control register
Bit(s) Mnemonic Name
Description
31:30 GPIO31
GPIO31_TDSEL
GPIO31 Tx duty control
29:28 GPIO30
GPIO30_TDSEL
GPIO30 Tx duty control
27:26 GPIO29
GPIO29_TDSEL
GPIO29 Tx duty control
25:24 GPIO28
GPIO28_TDSEL
GPIO28 Tx duty control
23:22 GPIO27
GPIO27_TDSEL
GPIO27 Tx duty control
21:20 GPIO26
GPIO26_TDSEL
GPIO26 Tx duty control
19:18 GPIO25
GPIO25_TDSEL
GPIO25 Tx duty control
17:16 GPIO24
GPIO24_TDSEL
GPIO24 Tx duty control
15:14 GPIO23
GPIO23_TDSEL
GPIO23 Tx duty control
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
13:12 GPIO22
GPIO22_TDSEL
GPIO22 Tx duty control
11:10 GPIO21
GPIO21_TDSEL
GPIO21 Tx duty control
9:8
GPIO20
GPIO20_TDSEL
GPIO20 Tx duty control
7:6
GPIO19
GPIO19_TDSEL
GPIO19 Tx duty control
5:4
GPIO18
GPIO18_TDSEL
GPIO18 Tx duty control
3:2
GPIO17
GPIO17_TDSEL
GPIO17 Tx duty control
1:0
GPIO16
GPIO16_TDSEL
GPIO16 Tx duty control
A2020D14
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_TDSEL1
GPIO TDSEL Control
_SET
31
30
29
28
27
26
15
14
13
12
11
10
GPIO31
WO
0
0
GPIO23
WO
0
0
GPIO30
WO
0
0
GPIO22
WO
0
0
GPIO29
WO
0
0
GPIO21
WO
0
0
00000000
25
24
23
22
21
20
19
18
9
8
7
6
5
4
3
2
GPIO28
WO
0
0
GPIO20
WO
0
0
GPIO27
WO
0
0
GPIO19
WO
0
0
GPIO26
WO
0
0
GPIO18
WO
0
0
GPIO25
WO
0
0
GPIO17
WO
0
0
17
16
1
0
GPIO24
WO
0
0
GPIO16
WO
0
0
For bitwise access of GPIO_TDSEL
Bit(s) Mnemonic Name
Description
31:30 GPIO31
GPIO31_TDSEL
Bitwise SET operation of GPIO31_TDSEL Tx duty control
0: Keep
1: SET bits
29:28 GPIO30
GPIO30_TDSEL
Bitwise SET operation of GPIO30_TDSEL Tx duty control
0: Keep
1: SET bits
27:26 GPIO29
GPIO29_TDSEL
Bitwise SET operation of GPIO29_TDSEL Tx duty control
0: Keep
1: SET bits
25:24 GPIO28
GPIO28_TDSEL
Bitwise SET operation of GPIO28_TDSEL Tx duty control
0: Keep
1: SET bits
23:22 GPIO27
GPIO27_TDSEL
Bitwise SET operation of GPIO27_TDSEL Tx duty control
0: Keep
1: SET bits
21:20 GPIO26
GPIO26_TDSEL
Bitwise SET operation of GPIO26_TDSEL Tx duty control
0: Keep
1: SET bits
19:18 GPIO25
GPIO25_TDSEL
Bitwise SET operation of GPIO25_TDSEL Tx duty control
0: Keep
1: SET bits
17:16 GPIO24
GPIO24_TDSEL
Bitwise SET operation of GPIO24_TDSEL Tx duty control
0: Keep
1: SET bits
15:14 GPIO23
GPIO23_TDSEL
Bitwise SET operation of GPIO23_TDSEL Tx duty control
0: Keep
1: SET bits
13:12 GPIO22
GPIO22_TDSEL
Bitwise SET operation of GPIO22_TDSEL Tx duty control
0: Keep
1: SET bits
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
11:10 GPIO21
GPIO21_TDSEL
Bitwise SET operation of GPIO21_TDSEL Tx duty control
0: Keep
1: SET bits
9:8
GPIO20
GPIO20_TDSEL
Bitwise SET operation of GPIO20_TDSEL Tx duty control
0: Keep
1: SET bits
7:6
GPIO19
GPIO19_TDSEL
Bitwise SET operation of GPIO19_TDSEL Tx duty control
0: Keep
1: SET bits
5:4
GPIO18
GPIO18_TDSEL
Bitwise SET operation of GPIO18_TDSEL Tx duty control
0: Keep
1: SET bits
3:2
GPIO17
GPIO17_TDSEL
Bitwise SET operation of GPIO17_TDSEL Tx duty control
0: Keep
1: SET bits
1:0
GPIO16
GPIO16_TDSEL
Bitwise SET operation of GPIO16_TDSEL Tx duty control
0: Keep
1: SET bits
A2020D18
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_TDSEL1
GPIO TDSEL Control
_CLR
31
30
29
28
27
26
15
14
13
12
11
10
GPIO31
WO
0
0
GPIO23
WO
0
0
GPIO30
WO
0
0
GPIO22
WO
0
0
GPIO29
WO
0
0
GPIO21
WO
0
0
00000000
25
24
23
22
21
20
19
18
9
8
7
6
5
4
3
2
GPIO28
WO
0
0
GPIO20
WO
0
0
GPIO27
WO
0
0
GPIO19
WO
0
0
GPIO26
WO
0
0
GPIO18
WO
0
0
GPIO25
WO
0
0
GPIO17
WO
0
0
17
16
1
0
GPIO24
WO
0
0
GPIO16
WO
0
0
For bitwise access of GPIO_TDSEL
Bit(s) Mnemonic Name
Description
31:30 GPIO31
GPIO31_TDSEL
Bitwise CLR operation of GPIO31_TDSEL Tx duty control
0: Keep
1: CLR bits
29:28 GPIO30
GPIO30_TDSEL
Bitwise CLR operation of GPIO30_TDSEL Tx duty control
0: Keep
1: CLR bits
27:26 GPIO29
GPIO29_TDSEL
Bitwise CLR operation of GPIO29_TDSEL Tx duty control
0: Keep
1: CLR bits
25:24 GPIO28
GPIO28_TDSEL
Bitwise CLR operation of GPIO28_TDSEL Tx duty control
0: Keep
1: CLR bits
23:22 GPIO27
GPIO27_TDSEL
Bitwise CLR operation of GPIO27_TDSEL Tx duty control
0: Keep
1: CLR bits
21:20 GPIO26
GPIO26_TDSEL
Bitwise CLR operation of GPIO26_TDSEL Tx duty control
0: Keep
1: CLR bits
19:18 GPIO25
GPIO25_TDSEL
Bitwise CLR operation of GPIO25_TDSEL Tx duty control
0: Keep
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
17:16 GPIO24
GPIO24_TDSEL
Bitwise CLR operation of GPIO24_TDSEL Tx duty control
0: Keep
1: CLR bits
15:14 GPIO23
GPIO23_TDSEL
Bitwise CLR operation of GPIO23_TDSEL Tx duty control
0: Keep
1: CLR bits
13:12 GPIO22
GPIO22_TDSEL
Bitwise CLR operation of GPIO22_TDSEL Tx duty control
0: Keep
1: CLR bits
11:10 GPIO21
GPIO21_TDSEL
Bitwise CLR operation of GPIO21_TDSEL Tx duty control
0: Keep
1: CLR bits
9:8
GPIO20
GPIO20_TDSEL
Bitwise CLR operation of GPIO20_TDSEL Tx duty control
0: Keep
1: CLR bits
7:6
GPIO19
GPIO19_TDSEL
Bitwise CLR operation of GPIO19_TDSEL Tx duty control
0: Keep
1: CLR bits
5:4
GPIO18
GPIO18_TDSEL
Bitwise CLR operation of GPIO18_TDSEL Tx duty control
0: Keep
1: CLR bits
3:2
GPIO17
GPIO17_TDSEL
Bitwise CLR operation of GPIO17_TDSEL Tx duty control
0: Keep
1: CLR bits
1:0
GPIO16
GPIO16_TDSEL
Bitwise CLR operation of GPIO16_TDSEL Tx duty control
0: Keep
1: CLR bits
A2020D20 GPIO_TDSEL2 GPIO TDSEL Control
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
31
30
29
28
27
26
15
14
13
12
11
10
GPIO47
RW
0
0
GPIO39
RW
0
0
GPIO46
RW
0
0
GPIO38
RW
0
0
GPIO45
RW
0
0
GPIO37
RW
0
0
25
24
9
8
GPIO44
RW
0
0
GPIO36
RW
0
0
00000000
23
22
7
6
GPIO43
RW
0
0
GPIO35
RW
0
0
21
20
5
4
GPIO42
RW
0
0
GPIO34
RW
0
0
19
18
3
2
GPIO41
RW
0
0
GPIO33
RW
0
0
17
16
1
0
GPIO40
RW
0
0
GPIO32
RW
0
0
GPIO TX duty control register
Bit(s) Mnemonic Name
Description
31:30 GPIO47
GPIO47_TDSEL
GPIO47 Tx duty control
29:28 GPIO46
GPIO46_TDSEL
GPIO46 Tx duty control
27:26 GPIO45
GPIO45_TDSEL
GPIO45 Tx duty control
25:24 GPIO44
GPIO44_TDSEL
GPIO44 Tx duty control
23:22 GPIO43
GPIO43_TDSEL
GPIO43 Tx duty control
21:20 GPIO42
GPIO42_TDSEL
GPIO42 Tx duty control
19:18 GPIO41
GPIO41_TDSEL
GPIO41 Tx duty control
17:16 GPIO40
GPIO40_TDSEL
GPIO40 Tx duty control
15:14 GPIO39
GPIO39_TDSEL
GPIO39 Tx duty control
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
13:12 GPIO38
GPIO38_TDSEL
GPIO38 Tx duty control
11:10 GPIO37
GPIO37_TDSEL
GPIO37 Tx duty control
9:8
GPIO36
GPIO36_TDSEL
GPIO36 Tx duty control
7:6
GPIO35
GPIO35_TDSEL
GPIO35 Tx duty control
5:4
GPIO34
GPIO34_TDSEL
GPIO34 Tx duty control
3:2
GPIO33
GPIO33_TDSEL
GPIO33 Tx duty control
1:0
GPIO32
GPIO32_TDSEL
GPIO32 Tx duty control
A2020D24
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_TDSEL2
GPIO TDSEL Control
_SET
31
30
29
28
27
26
15
14
13
12
11
10
GPIO47
WO
0
0
GPIO39
WO
0
0
GPIO46
WO
0
0
GPIO38
WO
0
0
GPIO45
WO
0
0
GPIO37
WO
0
0
25
24
9
8
GPIO44
WO
0
0
GPIO36
WO
0
0
00000000
23
22
7
6
GPIO43
WO
0
0
GPIO35
WO
0
0
21
20
5
4
GPIO42
WO
0
0
GPIO34
WO
0
0
19
18
3
2
GPIO41
WO
0
0
GPIO33
WO
0
0
17
16
1
0
GPIO40
WO
0
0
GPIO32
WO
0
0
For bitwise access of GPIO_TDSEL
Bit(s) Mnemonic Name
Description
31:30 GPIO47
GPIO47_TDSEL
Bitwise SET operation of GPIO47_TDSEL Tx duty control
0: Keep
1: SET bits
29:28 GPIO46
GPIO46_TDSEL
Bitwise SET operation of GPIO46_TDSEL Tx duty control
0: Keep
1: SET bits
27:26 GPIO45
GPIO45_TDSEL
Bitwise SET operation of GPIO45_TDSEL Tx duty control
0: Keep
1: SET bits
25:24 GPIO44
GPIO44_TDSEL
Bitwise SET operation of GPIO44_TDSEL Tx duty control
0: Keep
1: SET bits
23:22 GPIO43
GPIO43_TDSEL
Bitwise SET operation of GPIO43_TDSEL Tx duty control
0: Keep
1: SET bits
21:20 GPIO42
GPIO42_TDSEL
Bitwise SET operation of GPIO42_TDSEL Tx duty control
0: Keep
1: SET bits
19:18 GPIO41
GPIO41_TDSEL
Bitwise SET operation of GPIO41_TDSEL Tx duty control
0: Keep
1: SET bits
17:16 GPIO40
GPIO40_TDSEL
Bitwise SET operation of GPIO40_TDSEL Tx duty control
0: Keep
1: SET bits
15:14 GPIO39
GPIO39_TDSEL
Bitwise SET operation of GPIO39_TDSEL Tx duty control
0: Keep
1: SET bits
13:12 GPIO38
GPIO38_TDSEL
Bitwise SET operation of GPIO38_TDSEL Tx duty control
0: Keep
1: SET bits
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
11:10 GPIO37
GPIO37_TDSEL
Bitwise SET operation of GPIO37_TDSEL Tx duty control
0: Keep
1: SET bits
9:8
GPIO36
GPIO36_TDSEL
Bitwise SET operation of GPIO36_TDSEL Tx duty control
0: Keep
1: SET bits
7:6
GPIO35
GPIO35_TDSEL
Bitwise SET operation of GPIO35_TDSEL Tx duty control
0: Keep
1: SET bits
5:4
GPIO34
GPIO34_TDSEL
Bitwise SET operation of GPIO34_TDSEL Tx duty control
0: Keep
1: SET bits
3:2
GPIO33
GPIO33_TDSEL
Bitwise SET operation of GPIO33_TDSEL Tx duty control
0: Keep
1: SET bits
1:0
GPIO32
GPIO32_TDSEL
Bitwise SET operation of GPIO32_TDSEL Tx duty control
0: Keep
1: SET bits
A2020D28
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Overview
GPIO_TDSEL2
GPIO TDSEL Control
_CLR
31
30
29
28
27
26
15
14
13
12
11
10
GPIO47
WO
0
0
GPIO39
WO
0
0
GPIO46
WO
0
0
GPIO38
WO
0
0
GPIO45
WO
0
0
GPIO37
WO
0
0
25
24
9
8
GPIO44
WO
0
0
GPIO36
WO
0
0
00000000
23
22
7
6
GPIO43
WO
0
0
GPIO35
WO
0
0
21
20
5
4
GPIO42
WO
0
0
GPIO34
WO
0
0
19
18
3
2
GPIO41
WO
0
0
GPIO33
WO
0
0
17
16
1
0
GPIO40
WO
0
0
GPIO32
WO
0
0
For bitwise access of GPIO_TDSEL
Bit(s) Mnemonic Name
Description
31:30 GPIO47
GPIO47_TDSEL
Bitwise CLR operation of GPIO47_TDSEL Tx duty control
0: Keep
1: CLR bits
29:28 GPIO46
GPIO46_TDSEL
Bitwise CLR operation of GPIO46_TDSEL Tx duty control
0: Keep
1: CLR bits
27:26 GPIO45
GPIO45_TDSEL
Bitwise CLR operation of GPIO45_TDSEL Tx duty control
0: Keep
1: CLR bits
25:24 GPIO44
GPIO44_TDSEL
Bitwise CLR operation of GPIO44_TDSEL Tx duty control
0: Keep
1: CLR bits
23:22 GPIO43
GPIO43_TDSEL
Bitwise CLR operation of GPIO43_TDSEL Tx duty control
0: Keep
1: CLR bits
21:20 GPIO42
GPIO42_TDSEL
Bitwise CLR operation of GPIO42_TDSEL Tx duty control
0: Keep
1: CLR bits
19:18 GPIO41
GPIO41_TDSEL
Bitwise CLR operation of GPIO41_TDSEL Tx duty control
0: Keep
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
1: CLR bits
17:16 GPIO40
GPIO40_TDSEL
Bitwise CLR operation of GPIO40_TDSEL Tx duty control
0: Keep
1: CLR bits
15:14 GPIO39
GPIO39_TDSEL
Bitwise CLR operation of GPIO39_TDSEL Tx duty control
0: Keep
1: CLR bits
13:12 GPIO38
GPIO38_TDSEL
Bitwise CLR operation of GPIO38_TDSEL Tx duty control
0: Keep
1: CLR bits
11:10 GPIO37
GPIO37_TDSEL
Bitwise CLR operation of GPIO37_TDSEL Tx duty control
0: Keep
1: CLR bits
9:8
GPIO36
GPIO36_TDSEL
Bitwise CLR operation of GPIO36_TDSEL Tx duty control
0: Keep
1: CLR bits
7:6
GPIO35
GPIO35_TDSEL
Bitwise CLR operation of GPIO35_TDSEL Tx duty control
0: Keep
1: CLR bits
5:4
GPIO34
GPIO34_TDSEL
Bitwise CLR operation of GPIO34_TDSEL Tx duty control
0: Keep
1: CLR bits
3:2
GPIO33
GPIO33_TDSEL
Bitwise CLR operation of GPIO33_TDSEL Tx duty control
0: Keep
1: CLR bits
1:0
GPIO32
GPIO32_TDSEL
Bitwise CLR operation of GPIO32_TDSEL Tx duty control
0: Keep
1: CLR bits
A2020D30 GPIO_TDSEL3 GPIO TDSEL Control
Bit
Name
Type
Reset
Bit
Name
Type
Reset
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
Overview
GPIO48
A2020D34
Bit
Name
Type
Reset
Bit
Name
17
16
1
0
GPIO48
RW
0
0
GPIO TX duty control register
Bit(s) Mnemonic Name
1:0
00000000
31
Description
GPIO48_TDSEL
GPIO48 Tx duty control
GPIO_TDSEL3
GPIO TDSEL Control
_SET
00000000
31
30
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
© 2015 - 2018 Airoha Technology Corp.
17
16
1
0
GPIO48
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MT2523 Series Reference Manual
Type
Reset
0
Overview
GPIO48
A2020D38
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
GPIO48_TDSEL
GPIO_TDSEL3
GPIO TDSEL Control
_CLR
29
28
27
26
25
24
23
22
21
20
19
18
15
14
13
12
11
10
9
8
7
6
5
4
3
2
GPIO48
16
1
0
GPIO48
WO
0
0
Description
GPIO48_TDSEL
Bitwise CLR operation of GPIO48_TDSEL Tx duty control
0: Keep
1: CLR bits
CLK Out Selection Control
00000004
31
30
29
28
27
26
25
24
23
22
21
20
19
15
14
13
12
11
10
9
8
7
6
5
4
3
0
Overview
17
For bitwise access of GPIO_TDSEL
A2020E00 CLK_OUT0
18
17
16
2
1
0
CLK_OUT0
RW
1
0
0
CLK OUT0 Setting
Bit(s) Mnemonic Name
3:0
00000000
30
Bit(s) Mnemonic Name
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Bitwise SET operation of GPIO48_TDSEL Tx duty control
0: Keep
1: SET bits
31
Overview
1:0
0
For bitwise access of GPIO_TDSEL
Bit(s) Mnemonic Name
1:0
WO
CLK_OUT0 CFG0
Description
Selects clock output for CLKO_0
[0]: Reserved
[1]: f26m_mcusys_ck
[2]: Reserved
[3]: Reserved
[4]: f32k_mcusys_ck
[5]: Reserved
[6]: Reserved
[7]: Reserved
[8]: Reserved
[9]: Reserved
[10]: Reserved
[11]: Reserved
[12]: Reserved
[13]: Reserved
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A2020E10
Bit
Name
Type
Reset
Bit
Name
Type
Reset
Description
[14]: Reserved
[15]: Reserved
CLK_OUT1
CLK Out Selection Control
31
30
29
28
27
26
25
24
23
22
21
20
19
15
14
13
12
11
10
9
8
7
6
5
4
3
0
Overview
2
1
0
CLK_OUT1
RW
1
0
CLK Out Selection Control
0
00000004
31
30
29
28
27
26
25
24
23
22
21
20
19
15
14
13
12
11
10
9
8
7
6
5
4
3
0
18
17
16
2
1
0
CLK_OUT2
RW
1
0
0
CLK OUT2 setting
Bit(s) Mnemonic Name
3:0
16
Selects clock output for CLKO_1
[0]: Reserved
[1]: f26m_mcusys_ck
[2]: Reserved
[3]: Reserved
[4]: f32k_mcusys_ck
[5]: Reserved
[6]: Reserved
[7]: Reserved
[8]: Reserved
[9]: Reserved
[10]: Reserved
[11]: Reserved
[12]: Reserved
[13]: Reserved
[14]: Reserved
[15]: Reserved
A2020E20 CLK_OUT2
Overview
17
Description
CLK_OUT1 CFG1
Bit
Name
Type
Reset
Bit
Name
Type
Reset
18
CLK OUT1 setting
Bit(s) Mnemonic Name
3:0
00000004
CLK_OUT2 CFG2
Description
Selects clock output for CLKO_2
[0]: Reserved
[1]: f26m_mcusys_ck
[2]: Reserved
[3]: Reserved
[4]: f32k_mcusys_ck
[5]: Reserved
[6]: Reserved
[7]: Reserved
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
Description
[8]: Reserved
[9]: Reserved
[10]: Reserved
[11]: Reserved
[12]: Reserved
[13]: Reserved
[14]: Reserved
[15]: Reserved
A2020E30 CLK_OUT3
CLK Out Selection Control
Bit
Name
Type
Reset
Bit
Name
Type
Reset
31
30
29
28
27
26
25
24
23
22
21
20
19
15
14
13
12
11
10
9
8
7
6
5
4
3
0
Overview
2
1
0
CLK_OUT3
RW
1
0
CLK Out Selection Control
0
00000004
31
30
29
28
27
26
25
24
23
22
21
20
19
15
14
13
12
11
10
9
8
7
6
5
4
3
0
18
17
16
2
1
0
CLK_OUT4
RW
1
0
0
CLK OUT4 setting
Bit(s) Mnemonic Name
3:0
16
Selects clock output for CLKO_3
[0]: Reserved
[1]: f26m_mcusys_ck
[2]: Reserved
[3]: Reserved
[4]: f32k_mcusys_ck
[5]: Reserved
[6]: Reserved
[7]: Reserved
[8]: Reserved
[9]: Reserved
[10]: Reserved
[11]: Reserved
[12]: Reserved
[13]: Reserved
[14]: Reserved
[15]: Reserved
A2020E40 CLK_OUT4
Overview
17
Description
CLK_OUT3 CFG3
Bit
Name
Type
Reset
Bit
Name
Type
Reset
18
CLK OUT3 setting
Bit(s) Mnemonic Name
3:0
00000004
CLK_OUT4 CFG4
Description
Selects clock output for CLKO_4
[0]: Reserved
[1]: f26m_mcusys_ck
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MT2523 Series Reference Manual
Bit(s) Mnemonic Name
A2020E50
Bit
Name
Type
Reset
Bit
Name
Type
Reset
CLK_OUT5
CLK Out Selection Control
00000004
31
30
29
28
27
26
25
24
23
22
21
20
19
15
14
13
12
11
10
9
8
7
6
5
4
3
0
Overview
18
17
16
2
1
0
CLK_OUT5
RW
1
0
0
CLK OUT5 setting
Bit(s) Mnemonic Name
3:0
Description
[2]: Reserved
[3]: reserved
[4]: f32k_mcusys_ck
[5]: Reserved
[6]: Reserved
[7]: Reserved
[8]: Reserved
[9]: Reserved
[10]: Reserved
[11]: Reserved
[12]: Reserved
[13]: Reserved
[14]: Reserved
[15]: Reserved
CLK_OUT5 CFG5
Description
Selects clock output for CLKO_5
[0]: Reserved
[1]: f26m_mcusys_ck
[2]: Reserved
[3]: Reserved
[4]: f32k_mcusys_ck
[5]: Reserved
[6]: Reserved
[7]: Reserved
[8]: Reserved
[9]: Reserved
[10]: Reserved
[11]: Reserved
[12]: Reserved
[13]: Reserved
[14]: Reserved
[15]: Reserved
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MT2523 Series Reference Manual
28. MT2523 Top Clock Setting
This chapter defines the clock settings for MT2523.
28.1.
MT2523 Clock Scheme
This chapter describes the following settings:
•
CM4 MCU clock setting
•
Peripheral BUS clock setting
•
BSI clock setting
•
Serial flash clock setting
•
DSP clock setting
•
DISP PWM clock
•
CAM clock setting
•
SLCD clock setting
•
MSDC0 clock setting
•
MSDC1 clock setting
The USB clock’s frequency typically cannot be changed and so is not described in this chapter.
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MT2523 Series Reference Manual
pad_functest_ck
R create clock root
i ignore pin
G create_generated clock root
Clock Switch - Digital Clock
Frequency DIV
PLLs
Clock Switch – Clock source
selection
Top Global Con
{rf_msdc_cfg_clksrc_patch, rf_msdc_cfg_pws}
BT PLL
lp_clksq_mux
~(SW cg |
_sel
chg_clk)
rg_pad_functest_ck_sel
MIPI PLL
DCXO
26MHz
1
0
R
CSW_CLKSQ_CK
R
/2
/4
CLKSQ
RTC_F32K_CK
gp_f26m_
gfmux_sel
LFOSC_F26M_CK
1
0
UPLL
312M
EN
CG
R
lp_lfosc_mux
CLKSQ_F6P5M_CK
~(SW cg |
_sel
R
chg_clk)
LFOSC_F13M_CK
/2 R LFOSC_F6P5M_CK LFOSC_F26M_CK 0
EN
LFOSC_F13M_CK
1
/4 R
LFOSC_F6P5M_CK 2
CG
CLKSQ_F26M_CK
LFOSC
26M
CLKSQ_F26M_CK
CLKSQ_F13M_CK
CLKSQ_F6P5M_CK
RTC_F32K_CK
CLKSQ_F13M_CK
(to bt/modem/
dpm/mixedsys_d)
0
1
2
3
3
CSW_LP_CLKSQ_CK
CSW_LP_LFOSC_CK
MPLL_DIV3P5_CK
MPLL_DIV4_CK
CSW_LP_C
MPLL_DIV5_CK
LKSQ_CK
lp_f26m_gf HFOSC_DIV3P5_CK
MPLL_DIV4_CK
mux_sel
HFOSC_DIV5_CK
1
0
R
CSW_LP_L
FOSC_CK
CSW_GP_F26M_CK
(to uart)
/1.5
R
/2
R
R
/5 R
/2
R
R
MPLL_F178M_CK
/3
R
MPLL_F208M_CK
/2.5
R
R
MPLL_F624M_CK
MPLL_F312M_CK
HFOSC_CK
CSW_LP_CLKSQ_CK
CSW_LP_LFOSC_CK
MPLL_DIV3_CK
MPLL_F125M_CK
MPLL_DIV4_CK
MPLL_DIV5_CK
HFOSC_DIV3_CK
HFOSC_DIV4_CK
HFOSC_DIV5_CK
CSW_LP_CLKSQ_CK
CSW_LP_LFOSC_CK
UPLL_48M_CK
UPLL_F312M_CK
0
1
2
3
4
5
6
7
8
~(HW cg |
chg_clk)
EN
SW cg
CSW_SFC_CK & dcm
test_ck
0
1
2
3
EN
CG
MPLL_F250M_CK
/2
R
CG
0
1
i
CSW_CAM48M_CK
gcam_ck
0
1
2
3
EN
CSW_USB48M_CK
gusb_ck
CG
/2
/4
R
R
/3
/6
R
R
/2.5
R
MPLL_DIV2_CK
1
0
/1.5
MPLL_DIV4_CK
MPLL_DIV1P5_CK
R
/3.5
R
/5
R
MPLL_DIV3_CK
/3
/6
R
R
/2.5
R
/3.5
R
/5
R
CSW_LP_CLKSQ_CK
CSW_LP_LFOSC_CK
UPLL_F62M_CK
MPLL_DIV5_CK
MPLL_DIV6_CK
HFOSC_DIV5_CK
HFOSC_DIV6_CK
0
1
2
3
4
5
6
~(HW cg |
chg_clk)
MPLL_DIV3P5_CK
MPLL_DIV5_CK
HFOSC_DIV3_CK
HFOSC_DIV6_CK
HFOSC_DIV5_CK
EN
CG
0
1
CG
ghbus_pd_bus_mclk_ck
ghbus_ao_bus_mclk_ck
0
1
i
cm_mux_sel=efuse_cpu_104m &
(sel_reg > 4'd4) ? 4'd4 : sel_reg
CSW_LP_CLKSQ_CK 0
CSW_LP_LFOSC_CK 1
~(HW cg |
UPLL_F104M_CK 2
chg_clk)
3
MPLL_DIV3_CK
HFOSC_DIV3_CK 4
EN
MPLL_F208M_CK 5
CG
6
MPLL_DIV2_CK
HFOSC_DIV1P5_CK 7
HFOSC_DIV2_CK 8
dsp_mux_sel
HFOSC_DIV2P5_CK
HFOSC_DIV3P5_CK
ghbus_ck
SW cg
& dcm
CSW_BUS_CK
EN
MPLL_DIV6_CK
MPLL_DIV2P5_CK
HFOSC_DIV1P5_CK
R
bus_mux_sel
MPLL_F125M_CK
SW cg
CSW_CM_CK & dcm
0
1
test_ck
0
1
2
3
4
5
6
7
~(SW cg |
chg_clk)
CG
0
1
2
3
4
5
6
gmems_ck
0
1
i
SW cg &
HW idle
EN
CG
gdsp_ck
0
1
test_ck
i
0
1
CSW_SLCD_CK
SW cg &
HW idle
gslcd_ck
CG
CSW_DISP_PWM_CK
gdisp_pwm_ck
EN
CG
bsi_mux_sel ~(SW cg | HW cg |
chg_clk)
CSW_LP_CLKSQ_CK
CSW_LP_LFOSC_CK
MPLL_DIV2P5_CK
MPLL_DIV3_CK
HFOSC_DIV2P5_CK
HFOSC_DIV3_CK
1'b0
CG
EN
disp_pwm_mux_sel ~(SW cg |
chg_clk)
0
1
2
3
gcm_ck
EN
EN
CSW_DSP_CK
CSW_LP_CLKSQ_CK 0
CSW_LP_LFOSC_CK 1
~(HW cg |
2
MPLL_DIV2_CK
chg_clk)
3
MPLL_F138M_CK
4
MPLL_DIV2P5_CK
EN
5
UPLL_F125M_CK
CG
6
HFOSC_DIV2_CK
HFOSC_DIV2P5_CK 7
slcd_mux_sel
CSW_LP_CLKSQ_CK
CSW_LP_LFOSC_CK
UPLL_F104M_CK
HFOSC_DIV3_CK
32KHz
gsfc_ck
EN
0
1
CG
usb_mux_sel ~(SW cg |
chg_clk)
CSW_LP_CLKSQ_CK
CSW_LP_LFOSC_CK
UPLL_48M_CK
UPLL_F62M_CK
CSW_LP_CLKSQ_CK
CSW_LP_LFOSC_CK
MPLL_DIV2P5_CK
MPLL_DIV3_CK
MPLL_DIV4_CK
HFOSC_DIV2P5_CK
HFOSC_DIV3_CK
HFOSC_DIV4_CK
RTC
gmsdc1_ck
CSW_MSDC1_CK
MPLL_F138M_CK
DDS
R
UPLL_F62M_CK
/3.5
/1.5
HFOSC
312M
UPLL_F104M_CK
/4.5
mpll_powerful_div[0]
R
UPLL_F208M_CK
UPLL_F104M_CK
/3
gmsdc0_ck
CSW_MSDC0_CK
CG
cam_mux_sel ~(SW cg |
chg_clk)
UPLL_F312M_CK
MPLL
624M
EN
sfc_mux_sel
UPLL_F312M_CK
R
~(SW cg |
chg_clk)
CSW_LP_F26M_CK
UPLL_F48M_CK
UPLL_F48M_CK
R
0
1
2
3
4
5
6
7
EN
hnodcm_bsispi_ck
CSW|_BSISPI_CK
CG
CSW_LP_F26M_CK
CSW_F32K_CK
RTC_F32K_CK
f26m_ck
f32k_ck
R
Figure 28-1. MT2523 clock scheme
28.2.
Clock Setting Programming Guide
The clock settings of MT2523 are configured by CRs which control some clock dividers and MUXs. This chapter
describes how to switch clock source/frequency for MT2523 system and peripheral devices.
Note that all clock sources should be enabled and stable when S/W switches to it. Follow the minimum VCORE
voltage limitation, or there will be timing violation issues.
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28.2.1.
General Slow Clock Setting
There are three types of slow clocks, DCXO (CLKSQ) 26M, LFOSC 26M and 32K. CLKSQ 26M and LFOSC 26M are
divided into 13M and 6.5M. You can select LFOSC for lower power or CLKSQ for more accuracy. CM4/BUS/SFC
default clock is from CSW_LP_CLKSQ_CK; you can switch to CSW_LP_LFOSC_CK or other higher clock frequencies.
The clock source of UART 0 ~ 3 is from CSW_GP_F26M_CK. BT and audio 26M clock is from CLKSQ_F26M_CK.
Other
modules’
slow
clocks
are
derived
from
CSW_LP_F26M_CK,
e.g.
PWM/GPTIMER/I2C0/I2C1/SPI/SENSOR_DMA.
Powerful divide enable
bit works @
*CLK_CONDB
(0xA2010104) bit[31]=1
Min.
vcore
voltage
(typ)
0: CLKSQ_F26M_CK
(26MHz)
NA
0.9v
1: CLKSQ_F13M_CK
(13MHz)
NA
0.9v
2: CLKSQ_F6P5M_CK
(6.5MHz)
NA
0.9v
3: RTC_F32K_CK
(32kHz)
NA
0.9v
Powerful divide enable
bit works @
*CLK_CONDB
(0xA2010104) bit[31]=1
Min.
vcore
voltage
(typ)
0: LFOSC_F26M_CK
(26MHz)
NA
0.9v
1: LFOSC_F13M_CK
(13MHz)
NA
0.9v
2: LFOSC_F6P5M_CK
(6.5MHz)
NA
0.9v
3: RTC_F32K_CK
(32kHz)
NA
0.9v
Mux select register
(active when chg=1)
CSW_LP_CLKSQ_CK
LP_CLKSQ_MUX_SEL =
*CLK_CONDD
(0xA201010C) bit[25:24]
Mux select option
The configured CRs and steps are:
LP_CLKSQ_MUX_SEL
: 0xA201010C[25:24]
CHG_LP_CLKSQ =1
: 0xA21D0150[12]
MUX change will succeed when read 0xA21D0150[12] = 0.
Mux select register
(active when chg=1)
CSW_LP_LFOSC_CK
LP_LFOSC_MUX_SEL =
*CLK_CONDD
(0xA201010C) bit[23:22]
Mux select option
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The configured CRs and steps are:
LP_ LFOSC_MUX_SEL
: 0xA201010C[23:22]
CHG_LP_LFOSC =1
: 0xA21D0150[13]
MUX change will succeed when read 0xA21D0150[13] = 0.
CSW_LP_F26M_CK
Mux select register
Mux select option
Powerful divide enable
bit works @
*CLK_CONDB
(0xA2010104) bit[31]=1
Min.
vcore
voltage
(typ)
LP_F26M_GFMUX_SEL =
*CLK_CONDB
(0xA2010104) bit[20]
0: CSW_LP_CLKSQ_CK
NA
0.9v
1: CSW_LP_LFOSC_CK
NA
0.9v
Mux select option
Powerful divide enable
bit works @
*CLK_CONDB
(0xA2010104) bit[31]=1
Min.
vcore
voltage
(typ)
0: CLKSQ_F26M_CK
(26MHz)
NA
0.9v
1: LFOSC_F26M_CK
(26MHz)
NA
0.9v
The configured CRs and steps are:
LP_F26M_GFMUX_SEL: 0xA2010104[20]
MUX change will succeed after 2T original clock + 2T target clock.
Mux select register
CSW_GP_F26M_CK
GP_F26M_GFMUX_SEL =
*CLK_CONDB
(0xA2010104) bit[21]
The configured CRs and steps are:
GP_F26M_GFMUX_SEL: 0xA2010104[21]
MUX change will succeed after 2T original clock + 2T target clock.
28.2.2.
CM4 MCU Clock Setting
The CM4 MCU clock supports slow clock, 104MHz and max. 208MHz (divided from PLL). CM4 MCU clock is CM4
CPU clock. CM4 and EMI/SFC/MM AHB BUS (MEMS) clock are derived from CM4 MCU clock and equals half of CM4
MCU clock frequency. EMI needs 50/50 duty clock, so none of 50/50 duty clock source is forbidden with pSRAM
scenario.
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Change bit
(gating when chg,
auto clear)
CSW_CM_CK
CHG_CM =
*ACFG_CLK_UPDATE
(0XA21D0150) BIT[1]
Mux select
register
(active when
chg=1)
CM_MUX_SEL =
*CLK_CONDB
(0xA2010104)
bit[6:3]
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104)
bit[31]=1
Min.
vcore
voltage
(typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: UPLL_F104M_CK
(104MHz)
*CLK_CONDA
(0xA2010100)
bit[8+1]=1
1.1v
3: MPLL_DIV3_CK
(104MHz)
*CLK_CONDA
(0xA2010100)
bit[16]=1
*CLK_CONDA
(0xA2010100)
bit[16+4]=1
*CLK_CONDA
(0xA2010100)
bit[16+7]=1
1.1v
4: HFOSC_DIV3_CK
(104MHz)
*CLK_CONDA
(0xA2010100)
bit[0]=1
*CLK_CONDA
(0xA2010100)
bit[3]=1
1.1v
5: MPLL_F208M_CK
(208MHz)
*CLK_CONDA
(0xA2010100)
bit[16+2]=1
1.3v
6: MPLL_DIV2_CK
(156MHz)
*CLK_CONDA
(0xA2010100)
bit[16]=1
*CLK_CONDA
(0xA2010100)
bit[16+5]=1
1.3v
7: HFOSC_DIV1P5_CK
(none 50/50 duty,
forbidden)
*CLK_CONDA
(0xA2010100)
bit[0]=1
NA
8: HFOSC_DIV2_CK
(156MHz)
*CLK_CONDA
(0xA2010100)
bit[1]=1
1.3v
The configured CRs and steps are:
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POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
CM_MUX_SEL
: 0xA2010104[6:3]
CHG_CM =1
: 0xA21D0150[1]
MUX change will succeed when read 0xA21D0150[1] = 0.
28.2.3.
Peripheral BUS Clock Setting
The Peripheral BUS clock supports slow clock, 52MHz and max. 62.4MHz. Peripheral BUS clock is for peripheral
I2C_D2D/I2C2/DMA/DMA_AO/SPISLV clock and general BUS clock. Peripheral BUS clock can only run at max.
13MHz in 0.9v. Therefore, setting up BUS DCM signal “RG_BUS_FREE_FSEL” to derive 13MHz clock from 26MHz is
required. Refer to clock API for the setup method.
Change bit
(gating when chg,
auto clear)
CSW_BUS_CK
CHG_BUS =
*ACFG_CLK_UPDATE
(0XA21D0150) BIT[0]
Mux select
register
(active when
chg=1)
BUS_MUX_SEL
=
*CLK_CONDB
(0xA2010104)
bit[2:0]
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104)
bit[31]=1
Min.
vcore
voltage
(typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: UPLL_F62M_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100)
bit[8+3]=1
1.1v
3: MPLL_DIV5_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100)
bit[16]=1
*CLK_CONDA
(0xA2010100)
bit[16+9]=1
1.1v
4: MPLL_DIV6_CK
(52MHz)
*CLK_CONDA
(0xA2010100)
bit[16]=1
*CLK_CONDA
(0xA2010100)
bit[16+4]=1
*CLK_CONDA
(0xA2010100)
bit[16+7]=1
1.1v
5: HFOSC_DIV5_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100)
bit[5]=1
1.1v
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Change bit
(gating when chg,
auto clear)
Mux select
register
(active when
chg=1)
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104)
bit[31]=1
Min.
vcore
voltage
(typ)
6: HFOSC_DIV6_CK
(52MHz)
*CLK_CONDA
(0xA2010100)
bit[0]=1
*CLK_CONDA
(0xA2010100)
bit[3]=1
1.1v
The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
BUS_MUX_SEL
: 0xA2010104[2:0]
CHG_BUS =1
: 0xA21D0150[0]
MUX change will succeed when read 0xA21D0150[0] = 0.
28.2.4.
BSI BUS Clock Setting
The BSI clock supports slow clock, 104MHz and max. 124.8MHz. BSI clock is for DCXO configuration BSI interface.
BSI clock frequency should be bigger than or equal to twice of Peripheral BUS clock.
Change bit
(gating when chg,
auto clear)
CSW_BSI_CK
CHG_BSI =
*ACFG_CLK_UPDATE
(0XA21D0150) BIT[5]
Mux select
register
(active when
chg=1)
BSI_MUX_SEL =
*CLK_CONDB
(0xA2010104)
bit[19:17]
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104)
bit[31]=1
Min.
vcore
voltage
(typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: MPLL_DIV2P5_CK
(none 50/50 duty
124.8MHz)
*CLK_CONDA
(0xA2010100)
bit[16]=1
*CLK_CONDA
(0xA2010100)
bit[16+6]=1
1.1v
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Change bit
(gating when chg,
auto clear)
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104)
bit[31]=1
Min.
vcore
voltage
(typ)
3: MPLL_DIV3_CK
(104MHz)
*CLK_CONDA
(0xA2010100)
bit[16]=1
*CLK_CONDA
(0xA2010100)
bit[16+4]=1
*CLK_CONDA
(0xA2010100)
bit[16+7]=1
1.1v
4: HFOSC_DIV2P5_CK
(none 50/50 duty
124.8MHz)
*CLK_CONDA
(0xA2010100)
bit[2]=1
1.1v
5: HFOSC_DIV3_CK
(104MHz)
*CLK_CONDA
(0xA2010100)
bit[0]=1
*CLK_CONDA
(0xA2010100)
bit[3]=1
1.1v
Mux select
register
(active when
chg=1)
The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
BSI_MUX_SEL
: 0xA2010104[19:17]
RG_BSICSW_FORCE_ON=1
: 0xA201010C[5]
CHG_BSI =1
: 0xA21D0150[5]
MUX change will succeed when read 0xA21D0150[5] = 0.
RG_BSICSW_FORCE_ON=0
: 0xA201010C[5]
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MT2523 Series Reference Manual
28.2.5.
Serial Flash Clock Setting
The serial flash clock supports slow clock, 62.4MHz and max. 78MHz.
Change bit
(gating when chg,
auto clear)
CSW_SFC_CK
CHG_SFC =
*ACFG_CLK_UPDAT
E (0XA21D0150)
BIT[3]
Mux select
register
(active when
chg=1)
SFC_MUX_SEL =
*CLK_CONDB
(0xA2010104)
bit[13:10]
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: MPLL_DIV3_CK
(104MHz, forbidden)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+4]=1
*CLK_CONDA
(0xA2010100
) bit[16+7]=1
NA
3: MPLL_F125M_CK (
124.8MHz, forbidden)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+3]=1
NA
4: MPLL_DIV4_CK
(78MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+5]=1
1.1v
5: MPLL_DIV5_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+9]=1
1.1v
6: HFOSC_DIV3_CK
(104MHz, forbidden)
*CLK_CONDA
(0xA2010100
) bit[0]=1
*CLK_CONDA
(0xA2010100
) bit[3]=1
NA
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Change bit
(gating when chg,
auto clear)
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
7: HFOSC_DIV4_CK
(78MHz)
*CLK_CONDA
(0xA2010100
) bit[1]=1
1.1v
8: HFOSC_DIV5_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100
) bit[5]=1
1.1v
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: MPLL_DIV2_CK
(156MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+5]=1
1.3v
Mux select
register
(active when
chg=1)
The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
SFC_MUX_SEL
: 0xA2010104[13:10]
RG_SFCCSW_FORCE_ON=1
: 0xA201010C[3]
CHG_SFC =1
: 0xA21D0150[3]
MUX change will succeed when read 0xA21D0150[3] = 0.
RG_SFCCSW_FORCE_ON=0
28.2.6.
: 0xA201010C[3]
DSP Clock Setting
The DSP clock supports slow clock, 124.8MHz and max. 156MHz. DSP clock is for audio.
Change bit
(gating when chg,
auto clear)
CSW_DSP_CK
CHG_DSP =
*ACFG_CLK_UPDAT
E (0XA21D0150)
BIT[6]
Mux select
register
(active when
chg=1)
DSP_MUX_SEL =
*CLK_CONDB
(0xA2010104)
bit[30:28]
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MT2523 Series Reference Manual
Change bit
(gating when chg,
auto clear)
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
3: MPLL_F138M_CK
(none 50/50 duty
138.68MHz)
*CLK_CONDA
(0xA2010100
)
bit[16+10]=1
1.3v
4: MPLL_DIV2P5_CK
(none 50/50 duty
124.8MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+6]=1
1.1v
5: UPLL_F125M_CK
(none 50/50 duty
124.8MHz)
*CLK_CONDA
(0xA2010100
) bit[8+2]=1
1.1v
6: HFOSC_DIV2_CK
(156MHz)
*CLK_CONDA
(0xA2010100
) bit[1]=1
1.3v
7: HFOSC_DIV2P5_CK
(none 50/50 duty
124.8MHz)
*CLK_CONDA
(0xA2010100
) bit[2]=1
1.1v
Mux select
register
(active when
chg=1)
The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
RG_DSPCSW_FORCE_ON=1
: 0xA201010C[6]
DSP_MUX_SEL
: 0xA2010104[30:28]
CHG_DSP =1
: 0xA21D0150[6]
MUX change will succeed when read 0xA21D0150[6] = 0.
RG_DSPCSW_FORCE_ON=0
: 0xA201010C[6]
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MT2523 Series Reference Manual
28.2.7.
DISP PWM Clock Setting
DISP PWM Clock supports slow clock, and 104MHz. DISP PWM clock is for display module.
Change bit
(gating when chg,
auto clear)
CSW_DISP_C
K
CHG_DISP_PWM =
*ACFG_CLK_UPDAT
E (0XA21D0150)
BIT[9]
Mux select
register
(active when
chg=1)
DISP_PWM_MU
X_SEL =
*CLK_CONDB
(0xA2010104)
bit[27:26]
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: UPLL_F104M_CK
(104MHz)
*CLK_CONDA
(0xA2010100
) bit[8+1]=1
1.1v
3: HFOSC_DIV3_CK
(104MHz)
*CLK_CONDA
(0xA2010100
) bit[0]=1
*CLK_CONDA
(0xA2010100
) bit[3]=1
1.1v
The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
DISP_PWM_MUX_SEL
: 0xA2010104[27:26]
RG_DISPPWMCSW_FORCE_ON=1
: 0xA201010C[9]
CHG_DISP_PWM =1
: 0xA21D0150[9]
MUX change will succeed when read 0xA21D0150[9] = 0.
RG_DISPPWMCSW_FORCE_ON=0 : 0xA201010C[9]
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MT2523 Series Reference Manual
28.2.8.
CAM Clock Setting
The CAM clock supports slow clock, 48MHz and 312MHz. CAM clock is for camera module.
Change bit
(gating when chg,
auto clear)
CSW_CAM_C
K
CHG_CAM =
*ACFG_CLK_UPDAT
E (0XA21D0150)
BIT[7]
Mux select
register
(active when
chg=1)
CAM_MUX_SEL
=
*CLK_CONDB
(0xA2010104)
bit[23:22]
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: UPLL_48M_CK
(48MHz)
NA
1.1v
3: UPLL_F312M_CK
(312MHz)
NA
1.1v
The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
CAM_MUX_SEL
: 0xA2010104[23:22]
RG_CAMCSW_FORCE_ON=1
: 0xA201010C[7]
CHG_CAM =1
: 0xA21D0150[7]
MUX change will succeed when read 0xA21D0150[7] = 0.
RG_CAMCSW_FORCE_ON=0
: 0xA201010C[7]
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28.2.9.
SLCD Clock Setting
The SLCD clock supports slow clock, 78MHz, 104MHz, and max. 124.8MHz. SLCD clock is for display module.
Change bit
(gating when chg,
auto clear)
CSW_SFC_CK
CHG_SLCD =
*ACFG_CLK_UPDAT
E (0XA21D0150)
BIT[4]
Mux select
register
(active when
chg=1)
{RG_SLCD_CK_SE
L,
SLCD_MUX_SEL}
=
{*CLK_CONDD
(0xA201010C)
bit[21],
*CLK_CONDB
(0xA2010104)
bit[16:14]}
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: MPLL_DIV2P5_CK
(none 50/50 duty
124.8MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+6]=1
1.1v
3: MPLL_DIV3_CK
(104MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+4]=1
*CLK_CONDA
(0xA2010100
) bit[16+7]=1
1.1v
4: MPLL_DIV4_CK
(78MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+5]=1
1.1v
5: HFOSC_DIV2P5_CK
(none 50/50 duty
124.8MHz)
*CLK_CONDA
(0xA2010100
) bit[2]=1
1.1v
6: HFOSC_DIV3_CK
(104MHz)
*CLK_CONDA
(0xA2010100
) bit[0]=1
*CLK_CONDA
(0xA2010100
) bit[3]=1
1.1v
7: HFOSC_DIV4_CK
(78MHz)
*CLK_CONDA
(0xA2010100
) bit[1]=1
1.1v
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Change bit
(gating when chg,
auto clear)
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
8: MPLL_F125M_CK
(124.5MHz 50/50 duty)
*CLK_CONDA
(0xA2010100
) bit[16+3]=1
1.1v
Mux select
register
(active when
chg=1)
The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
SLCD_MUX_SEL
: 0xA2010104[16:14]
RG_SLCD_CK_SEL
: 0xA201010C[21]
RG_SLCDCSW_FORCE_ON=1
: 0xA201010C[4]
CHG_SLCD =1
: 0xA21D0150[4]
MUX change will succeed when read 0xA21D0150[4] = 0.
RG_SLCDCSW_FORCE_ON=0
: 0xA201010C[4]
28.2.10. MSDC0 Clock Setting
The MSDC0 clock supports slow clock, 62.4MHz, 78MHz and max. 89.1MHz. MSDC0 clock is for eMMC0 module.
CSW_MSDC0
_CK
Change bit
(gating when chg,
auto clear)
Mux select
register
(active when
chg=1)
CHG_MSDC0 =
*ACFG_CLK_UPDATE
(0XA21D0150)
BIT[10]
{
RF_MSDC0_MS
DC_CFG_CLKSR
C_PATCH,
RF_MSDC0_MS
DC_CFG_PWS }
=
*MSDC0_MSDC
_CFG
(0xA0020000)
bit {[23],[4:3]}
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: MPLL_DIV3P5_CK
(89.1MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+8]=1
1.3v
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Change bit
(gating when chg,
auto clear)
Mux select
register
(active when
chg=1)
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
3: MPLL_DIV4_CK
(78MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+5]=1
1.2v
4: MPLL_DIV5_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+9]=1
1.1v
5: HFOSC_DIV3P5_CK
(89.1MHz)
*CLK_CONDA
(0xA2010100
) bit[4]=1
1.3v
6: HFOSC_DIV4_CK
(78MHz)
*CLK_CONDA
(0xA2010100
) bit[1]=1
1.2v
7: HFOSC_DIV5_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100
) bit[5]=1
1.1v
The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
RF_MSDC0_MSDC_CFG_CLKSRC_PATCH
: 0xA0020000[23]
RF_MSDC0_MSDC_CFG_PWS
: 0xA0020000[4:3]
RG_MSDC0CSW_FORCE_ON=1
: 0xA201010C[10]
CHG_MSDC0 =1
: 0xA21D0150[10]
MUX change will succeed when read 0xA21D0150[10] = 0.
RG_MSDC0CSW_FORCE_ON=0
: 0xA201010C[10]
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28.2.11. MSDC1 Clock Setting
The MSDC1 clock supports slow clock, 62.4MHz, 78MHz and max. 89.1MHz. MSDC1 clock is for eMMC1 module.
Change bit
(gating when chg,
auto clear)
CSW_MSDC1
_CK
CHG_MSDC1 =
*ACFG_CLK_UPDATE
(0XA21D0150)
BIT[11]
Mux select
register
(active when
chg=1)
{RF_MSDC1_M
SDC_CFG_CLKS
RC_PATCH,
RF_MSDC1_MS
DC_CFG_PWS}
=
*MSDC1_MSDC
_CFG
(0xA0030000)
bit {[23],[4:3]}
Mux select option
Powerful
divide enable
bit works @
*CLK_CONDB
(0xA2010104
) bit[31]=1
Min.
vcore
voltag
e (typ)
0: CSW_LP_CLKSQ_CK
(max. 26MHz)
NA
0.9v
1: CSW_LP_LFOSC_CK
(max. 26MHz)
NA
0.9v
2: MPLL_DIV3P5_CK
(89.1MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+8]=1
1.3v
3: MPLL_DIV4_CK
(78MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+5]=1
1.2v
4: MPLL_DIV5_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100
) bit[16]=1
*CLK_CONDA
(0xA2010100
) bit[16+9]=1
1.1v
5: HFOSC_DIV3P5_CK
(89.1MHz)
*CLK_CONDA
(0xA2010100
) bit[4]=1
1.3v
6: HFOSC_DIV4_CK
(78MHz)
*CLK_CONDA
(0xA2010100
) bit[1]=1
1.2v
7: HFOSC_DIV5_CK
(62.4MHz)
*CLK_CONDA
(0xA2010100
) bit[5]=1
1.1v
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The configured CRs and steps are:
POWERFUL_DIV_EN
: 0xA2010100[31:0]
PLL_DIV_EN=1
: 0xA2010104[31]
RF_MSDC1_MSDC_CFG_CLKSRC_PATCH
: 0xA0030000[23]
RF_MSDC1_MSDC_CFG_PWS
: 0xA0030000[4:3]
RG_MSDC1CSW_FORCE_ON=1
: 0xA201010C[11]
CHG_MSDC1 =1
: 0xA21D0150[11]
MUX change will succeed when read 0xA21D0150[11] = 0.
RG_MSDC1CSW_FORCE_ON=0
: 0xA201010C[11]
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MT2523 Series Reference Manual
29. Power Management Unit
The power management unit (PMU) manages the power supply of the entire chip, such as baseband, processor,
memory, camera, vibrator, and more. The digital part of PMU is integrated into the analog part (see Figure 29-1).
PMU includes the following analog functions for signal processing:
•
Digital Core Buck Converter (𝑉𝑉𝑐𝑐𝑐𝑐𝑐𝑐𝑐𝑐 ): The buck converter is optimized for high efficiency and low quiescent
current.
•
LDO and power switch. Regulate battery voltage to lower voltage level.
•
LED current sink (ISINK) switches: Sink current for the LCM module.
•
Start-up (STRUP). Generates power on/off control sequence of start-up circuits.
•
Pulse charger (PCHR). Controls battery charging.
VCORE
Essential LDOs
LCM
Module
VCORE
VDIG18
VA18
VIO18
VIO28
VSF
VMC
ISINK
Current Sink *1
VDIG18
VDDK
AVDD_RTC
VIO18
AVDD18_AUXADC
DVDD18_VSWXM
AVDD18_DCXO
VIO28
AVDD28_ABB
AVDD28_MIPI
DVDD_VIO_B
VA18
VIO18
VIO28
VIO28
DVDD18_VIO18
DVDD_GPO
DVDD_VIO_A
DVDD_VIO_C
MT2523G/D
Base Band
Processor
VIO18
MT2523G/D
PMU
VSF
DVDD_VSF
VMC
DVDD33_VMC
AVDD33_USB
VIBR
M
Charger
In
BJT
+Rsense
BATSNS
Extra LDOs
Vibrator
Pulse-Charger
Controller
Basic Feature LDOs
VUSB
VCAMA
VBT
Memory card
VUSB
VCAMA
Camera sensor
VBT
AVDD_VBT
AVDD13_BTRF
MT2523G/D
Bluetooth RF
Figure 29-1. MT2523 series PMU architecture
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29.1.
Power supply schemes
There are four battery input balls for regulator input. The recommended battery operation range is from 3.15V to
4.8V, which is suitable for Li-ion battery applications.
1) VBAT_BUCK_CTRL and VBAT_CORE are power supplies for VCORE in buck mode, VBAT_LDOS1 is the
power supply for VCORE in LDO mode, VIO18, VA18, VIO28, VUSB and VDIG18.
2) There is a power switch between VBAT_LDOS1 and PWRSW_OUT to reduce sub-block power leakage
current. PWRSW_OUT supplies power for VA28, VCAMA, VBT, VMC and VIBR.
3) VSWXM and VSWDP power switches are supplied with power from VIO18.
4) VSWMP power switch is supplied with power from VIO28.
The LDO input power plan is shown in Table 29-1.
Table 29-1. LDO input power plan
Type
Name
Buck
VCORE (buck mode)
VBAT_LDOS1
DLDO
VCORE (LDO mode)
VBAT_LDOS2=>PWRSW_OUT
ALDO
VA28
VBAT_LDOS2=>PWRSW_OUT
ALDO
VCAMA
VBAT_LDOS1
DLDO
VIO18
From VIO18
Power switch
VSWXM
From VIO18
Power switch
VSWDP
VBAT_LDOS2=>PWRSW_OUT
ALDO
VBT
VBAT_LDOS1
ALDO
VA18
VBAT_LDOS2
DLDO
VSF
VBAT_LDOS1
DLDO
VIO28
From VIO28
Power switch
VSWMP
VBAT_LDOS1
DLDO
VUSB
VBAT_LDOS2=>PWRSW_OUT
DLDO
VMC
VBAT_LDOS2=>PWRSW_OUT
DLDO
VIBR
DVDD18_DIG
VDIG18
Input power plan
VBAT_BUCK_CTRL
VBAT_VCORE
VBAT_LDOS1
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29.2.
Voltage regulator
VBAT_VCORE
VBAT_LDOS1
VBAT_LDOS2
VCORE
200mA
0.7~1.3V
PWRSW
VBT
100mA
2.8V
Bluetooth
VA28
150mA
2.8V
1. AUDIO
2. AUXADC
3. DAC
SOC Core
(CPU, DSP,
MM, ….)
VCORE
20mA
0.7~1.3V
VIO28
150mA
2.8V
VA18
2.5mA
1.8V
1. PSRAM I/O PADs
2. 1.8V sensor
3. EXTM (PSRAM)
VSWXM
70mA
VIO18
200mA
1.8V
VSWDP
70mA
1. 1.8V LCM
2. PLL
3. Dedicated display
VSWMP
20mA/OFF
VCAMA
100mA
2.8V/OFF
1. GPIO, Peri. I/O PADs
2. LPOSC
VIBR
100mA
1.8, 2.8, 3.0,
3.3V/OFF
MIPI, DSI analog
1. GPIO, Peri. I/O PADs
2. 2.8V sensor
3. SOC Efuse
4. 2.8V LCM
1. AUXADC
2. PCHR
3. DCXO
1. Camera
Vibrator
VMC
230mA
3, 3.3V
1. MSDC and interface I/O PADs
2. 3.3V sensor
PCHR
AVDD33
BATSNS
VDIG18
5mA
1.8V
1. RTC Marco
2. 32KHz OSC
3. Start-up digital
CHRIN
VBAT_LDOS2
VUSB
80mA
3.3V
1. USB 2.0
2. 3.3V sensor
VSF
100mA
1.86V
1. Serial Flash
2. Interface I/O PADs
VBAT_LDOS2
STRUP
Default on power block LDO
Default on power block ALDO
Default off power block ALDO
Default on power block PWRSW
Default on power block DLDO
Default off power block DLDO
Default on power block SW
Default on power block PCHR
Default off power block SW
Default on power block STRUP
Default off power block BUCK
VSWXM: External SRAM Switch
VCAMA: Camera Supply Voltage
VSWDP: Dedicate Display Switch
PCHR: Pulse Charger
VSWMP: MIPI Switch
CHRIN: Charger In
PWRSW: Power Switch
Figure 29-2. MT2523 series power domain
29.2.1.
LDO
PMU integrates 12 general low dropout regulators (LDO). Performance optimization is achieved using the APIs for
different quiescent current, dropout voltage, line/load regulation, ripple rejection and output noise.
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LDO is capable of maintaining its specified output voltage over a wide range of load current and input voltage,
down to a very small difference between input and output voltages.
The LDO design includes features, such as discharge control, soft start and current limit. Before LDO is enabled, the
output pin of LDO should be first discharged to avoid voltage accumulation on the capacitance. The soft-start limits
inrush current and controls output-voltage rising time during power-up. The current limit is the current protection
to limit LDO’s output current and power dissipation.
There are three types of LDOs in PMU of the MT2523 series platform and the general LDO block diagram is shown
in Figure 29-3. The analog LDO is optimized for low-frequency ripple rejection to reject VBAT ripples. The digital IO
LDO is a linear regulator optimized for very low quiescent current. VDIG18 LDO is a linear regulator that can
charge up a capacitor-type backup coin cell that supplies the RTC module.
VBAT_XXX
Current
Limit
VREF
VOUT
VOUT
R1
VOUT
Discharge
Control
R2
GND
Figure 29-3. General LDO block diagram
29.2.1.1.
LDO types
Table 29-2. LDO types and brief specifications
Type
LDO name
Vout (Volt)
Imax (mA)
Description
ALDO
VBT
2.8
100
Bluetooth
ALDO
VA28
2.8
150
Audio
ALDO
VA18
1.8
2.5
AUXADC
ALDO
VCAMA
2.8
100
Camera sensor
DLDO
VIO28
2.8
150
Digital IO and Bluetooth
DLDO
VUSB
3.3
80
USB
DLDO
VIO18
1.8
200
Digital IO
DLDO
VCORE
0.7~1.30
20
Digital baseband
DLDO
VIBR
1.3/1.5/1.8/2/2.5/2.8/3/3.3
100
Vibrator
DLDO
VMC
1.8/2.8/3.0/3.3
230
Memory card
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Type
LDO name
Vout (Volt)
Imax (mA)
Description
DLDO
VSF
1.86/3.0/3.3
100
Serial flash
Power
Switch
VSWXM
1.8
70
Power
Switch
VSWDP
1.8
70
Power
Switch
VSWMP
2.8
20
29.2.1.2.
Powered by VIO18
PSRAM I/O.
Powered by VIO18
Dedicated display
MIPI DSI analog
Regulator ON
There are three power modes configured by software when the regulator is on − Normal mode, Lite mode and
LP mode. In power-on state, the regulators are powered on by normal mode to achieve fast power-on. The soft
start feature limits the inrush current to avoid battery voltage drop. DIG18 LDO is in ULP mode at power-off
state.
29.2.1.3.
Regulator Off
Disabling the regulator and entering the shutdown mode will cause output voltage to discharge through N-MOSFET
to ground. In shutdown mode, the quiescent current can be reduced to below 0.1µA.
29.3.
Low power mode
The device supports four low-power modes to achieve the best compromise in low power consumption.
The ULP mode LDO is only implemented in DIG18, VCOR_LOD, VIO18, VIO28 and VSF.
LDO mode selection can be configured through the PSI register.
29.4.
Pulse Charger (PCHR)
The charger controller senses the charger input voltage from either a standard AC-DC adapter or a USB charger.
When the charger input voltage is within a pre-determined range, the charging process is activated. This detector
can resist higher input voltage than other parts of the PMU.
29.4.1.
Charger detection
Whenever an invalid charging source is detected (> 5.5V), the charger detector will stop the charging process
immediately to prevent the chip even the device from burning out. In addition, if the charger-in level is not high
enough (< 4.15V), the charger will also be disabled to avoid improper charging behavior.
29.4.2.
Charging control
When the charger is active, the charger controller will manage the charging phase according to the battery status.
During the charging period, the battery voltage is constantly monitored. The battery charger supports pre-charge
mode (VBAT < 3.45V, PMU power-off state), CC mode (constant current mode or fast charging mode at the
range 3.45V < VBAT < 4.2V) and CV mode (constant voltage mode) to optimize the charging process for Li-ion
battery. Figure 29-4 and Figure 29-5 is the charging block/state diagram.
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Charger block diagram
Off Chip
CHRIN
ON Chip
CHRLDO
CHRIN
VBAT
DRV
VBAT_DDLO_DET
VBAT_UVLO_DET
VREF
8V LDMOS
CSDAC_EN
VBAT_DDLO_VTH<1:0>
CSDAC_DAT<7:0>
VBAT_UVLO_VTH<1:0>
VBAT
Voltage
divider
ISENSE
VBAT_CC_DET
VBAT_CC_VTH[1:0]
CS_DET
EN
VBAT_CV_DET
CS_EN
VBAT_CV_VTH[1:0]
Current
in2
in1
Sensing vr set
Rsense
VREF
CS_VTH[3:0]
gain
VBAT_OV_DET
CHR_LDO_DET
BATSNS
(VBAT)
VBAT
VBAT_OV_VTH[1:0]
Charger Core
And
Digital Controller
VA18
BATON
Interface
COMP
To BB
BATON_UNDET
RNTC
OTG/BATON VREF GEN
COMP
OTG_BVALID_DET
BC12
Controller
CHRIN
OTG_BVAILD_EN
VCDT
COMP
VCDT VREF GEN
VCDT_DET
MUX
CCHRLDO_DET_CMP
VCDT_VTH[3:0]
VTH CGRLDOGOOD
CHR_LDO_DET
COMP
VBGR
Figure 29-4. PCHR schematics
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NON-CHARGING
NO
YES
CHRIN>4.15V
PRECC0 unlock
DeadBATT
VBAT<2.2V?
NO
YES
PreCC
VBAT<2.7V
5 min timeout
NO
CC Mode
VBAT>3V
(software initiate)
NO
CV Mode
VBAT=4.2V
Charger OFF
YES
(Software programmable)
PreCC
2.7V2.2V
Figure 29-7. Power-on/off control sequence by charger plug in
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MT2523 Series Reference Manual
1) Pushing PWRKEY (pulling the PWRKEY pin to low level).
Pulling PWRKEY low is a typical method to turn on the handset. The system reset ends once all default-on
regulators are sequentially turned on. After that, the baseband will send the BBWAKEUP signal back to PMIC for
acknowledgement. To successfully power on the handset, PWRKEY should be kept low until PMIC receives
BBWAKEUP from the baseband.
2) RTC module generates PWRHOLD to wake up the system.
If the RTC module is scheduled to wake up the handset at some time, the PWRHOLD signal will be directly sent to
PMIC. In this case, PWRHOLD becomes high at specific moment and allows PMIC power-on. This is called the RTC
alarm.
3) Valid charger plug-in (CHRIN voltage within valid range).
The charger plug-in will also turn on the handset if the charger is valid. When PMU_CHGIN input voltage is greater
than CHGIN_VTHH and VSYS>UVLO, the handset will also be powered on.
Under-voltage lockout (UVLO)
The UVLO state in PMIC prevents start-up if the initial voltage of the main battery is below UVLO_VTH. The
judgment is done by VBATSNS. It ensures that the handset is powered on with the battery in good condition. The
UVLO function is performed by a hysteretic comparator to ensure smooth power-on. In addition, when the battery
voltage is getting lower, it will enter the UVLO state and PMIC will be turned off by itself, except for VRTC LDO, to
prevent further discharging. Once PMIC enters the UVLO state, it will draw low quiescent current. RTC LDO will still
be working until DDLO disables it.
Deep discharge lockout (DDLO)
PMIC will enter the deep discharge lockout (DDLO) state when the battery voltage drops below DDLO_VTHL. In this
state, VRTC LDO will be shut down. Otherwise, it will draw very low quiescent current to prevent further
discharging or even damage to the cells.
Reset
PMIC contains a reset control circuit that takes effect at both power-up and power-down. The RESETB pin is held
low in the beginning of power-up and returns to high after the pre-determined delay time. The delay time is
controlled by a large counter, which uses the clock from the internal ring-oscillator. At power-off, the RESETB pin
will return to low immediately without any delay.
Over-temperature protection
If the die temperature of PMIC exceeds 125°C (typical condition), PMIC will automatically disable all regulators
except for VRTC. Once the over-temperature state is resolved, a new power-on sequence will be required to
enable the regulators.
29.6.
LED current sink (ISINK)
Maximum of two indicator LED drivers are supported. Figure 29-8 provides the usage of indicator LED drivers. The
LED driver of MT2523 series supports PWM mode and breath mode. The LED current changing from small to large
then descending is the breath mode. The breathing cycle time, including Trising_1, Trising_2, Ton, Toff,
Tfalling_1, and Tfalling_2 period can be modified through software configuration of the registers.
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MT2523 Series Reference Manual
NI_ISINKS_CH_EN
RG_ISINKS_CH0_STEP[2:0]
VBAT
VBAT
Isink
A2D signals
ISINK
NI_ISINKS0_STATUS
NI_ISINKS1_STATUS
ISINK_EN
Step[2:0]
Figure 29-8. ISINK block diagram
29.7.
Vibrator driver
The VIBR driver power allows up to 100mA current for eccentric rotating mass (ERM) or coin type vibrator with
programmable output voltage.
29.8.
PMU AUXADC
The PMU auxiliary ADC includes the following functional blocks:
•
Analog multiplexer: Selects signals from one of the input channels. The signal, such as temperature, are
monitored and transferred to the voltage domain.
•
15-bit A/D converter: Converts the multiplexed input signal to 15-bit digital data.
The PMU auxiliary ADC input range and specification is shown in Table 29-3.
Table 29-3. Application and input range of ADC channels
Channel
Application
Input range [V]
0
BATSNS
3.0 ~ 4.8
1
ISENSE
3.0 ~ 4.8
2
VCDT
0 ~ 1.5
3
BATON
0.1 ~ 1.7
Internal use
N/A
Others
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MT2523 Series Reference Manual
Module name: PMIC_REG Base address: (+0h)
Address
Name
Widt
h
1D
RSTCFG3
8
Reset config 3
1E
INTSTS0
8
Interrupt status/clear 0
1F
INTSTS1
8
Interrupt status/clear 1
20
INTSTS2
8
Interrupt status/clear 2
21
INTSTS3
8
Interrupt status/clear 3
22
INTSTS4
8
Interrupt status/clear 4
23
INTSTS5
8
Interrupt status/clear 5
24
INTSTS6
8
Interrupt status/clear 6
Register Function
25
INTEN0
8
Interrupt enable 0
26
INTEN1
8
Interrupt enable 1
27
INTEN2
8
Interrupt enable 2
28
INTEN3
8
Interrupt enable 3
Interrupt enable 4
29
INTEN4
8
2A
INTEN5
8
Interrupt enable 5
2B
INTEN6
8
Interrupt enable 6
2C
INTMISC
8
interrupt misc register
2D
PONSTS
8
Power on source record register
2E
POFFSTS
8
Power off source record register
2F
PDNSTS0
8
Power exception shutdown status 0
30
PDNSTS1
8
Power exception shutdown status 1
31
PDNSTS2
8
Power exception shutdown status 2
32
PSSTS0
8
Power supply status 0 register
33
PSSTS1
8
Power supply status 1 register
34
PSSTS2
8
Power supply status 2 register
35
PSOCSTS0
8
Power supply Overcurrent status 0 register
36
PSOCSTS1
8
Power supply Overcurrent status 1 register
37
PSPGSTS0
8
Power supply PWRGOOD status 0 register
38
PSPGSTS1
8
Power supply PWRGOOD status 1 register
Power supply Operational mode status 0 register
39
PSOMSTS0
8
3A
PSOMSTS1
8
Power supply Operational mode status 1 register
3B
PSOMSTS2
8
Power supply Operational mode status 2 register
3C
THMSTS
8
Thermal Status
3D
WKFG_STS
8
Wake Up Fuel Gauge Status
40
PSICTL
8
PSI control register
41
PSISTS
8
PSI status register
48
PPCCFG0
8
PPC configruation 0 register
4A
PPCCFG2
8
PPC configruation 2 register
4B
PPCCTL0
8
PPC control 0 register
4D
SHDNCFG1
8
Shutdown configuration 1 register
87
CHR_CON0
8
Charger control register 0
88
CHR_CON1
8
Charger Control Register 1
89
CHR_CON2
8
Charger Control Register 2
8A
CHR_CON3
8
Charger Control Register 3
8B
CHR_CON4
8
Charger Control Register 4
8D
CHR_CON6
8
Charger Control Register 6
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MT2523 Series Reference Manual
Module name: PMIC_REG Base address: (+0h)
8E
CHR_CON7
8
Charger Control Register 7
8F
CHR_CON7_H
8
Charger Control Register 7_H
92
CHR_CON9
8
Charger Control Register 9
93
CHR_CON10
8
Charger Control Register 10
96
CHR_CON13
8
Charger Control Register 13
97
CHR_CON13_
H
8
Charger Control Register 13_H
99
CHR_CON15
8
Charger Control Register 15
9A
CHR_CON16
8
Charger Control Register 16
9B
CHR_CON16_
H
8
Charger Control Register 16_H
9C
CHR_CON17
8
Charger Control Register 17
9D
CHR_CON18
8
Charger Control Register 18
9E
CHR_CON19
8
Charger Control Register 19
9F
CHR_CON20
8
Charger Control Register 20
A0
CHR_CON21
8
Charger Control Register 21
A1
CHR_CON21_
H
8
Charger Control Register 21_H
A3
CHR_CON23
8
Charger Control Register 23
A4
CHR_CON24
8
Charger Control Register 24
A5
CHR_CON25
8
Charger Control Register 25
AA
CHR_CON30
8
Charger Control Register 30
AB
CHR_CON30_
H
8
Charger Control Register 30_H
AD
CHR_CON42
8
Charger Control Register 42
AE
BATON_CON0
8
BATON Control Register 0
B0
CHR_CON44
8
Charger Control Register 44
B1
CHR_CON45
8
Charger Control Register 45
B2
CHR_CON45_
H
8
Charger Control Register 45_H
B3
CHR_CON46
8
Charger Control Register 46
B4
CHR_CON46_
H
8
Charger Control Register 46_H
B5
CHR_CON47
8
Charger Control Register 47
DA
VA18CTL0
8
VA18 Control register 0
DB
VA18CTL1
8
VA18 Control register 1
E2
VA18PSI0
8
VA18 LDO PSI register0
E3
VA18PSI1
8
VA18 LDO PSI register1
E4
VBTCTL0
8
VBT Control register 0
E5
VACTL0
8
VA Control register 0
E6
VCLDOCTL0
8
VCORE LDO Control register 0
E8
PSWCTL1
8
PSW Control register 1
E9
VIO18CTL0
8
VIO18 Control register 0
EA
VSFCTL0
8
VSF Control register 0
EB
VIO28CTL0
8
VIO28 Control register 0
EC
VMCCTL0
8
VMC Control register 0
ED
VUSBCTL0
8
VUSB Control register 0
EF
VUSBLDO0
8
VUSBLDO0
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MT2523 Series Reference Manual
Module name: PMIC_REG Base address: (+0h)
F3
VUSBLDOBF0
8
VUSBLDOBF0
F5
VUSBPSI0
8
VUSB LDO PSI register0
F6
VUSBPSI1
8
VUSB LDO PSI register1
F7
VDIG18LDO0
8
VDIG18LDO0
FB
VDIG18LDOBF
0
8
VDIG18LDOBF0
FD
VCLDO0
8
VCORE LDO register 0
FE
VCLDO1
8
VCORE LDO register 1
101
VCLDOBF0
8
VCORE LDO buffer register 0
103
VCLDOPSI0
8
VCORE LDO PSI register 0
104
VCLDOPSI1
8
VCORE LDO PSI register 1
105
VCLDOPSI2
8
VCORE LDO PSI register 2
106
VCLDOPSI3
8
VCORE LDO PSI register 3
107
VCLDOPSI4
8
VCORE LDO PSI register 4
VCORE LDO PSI register 5
108
VCLDOPSI5
8
10A
VIO18LDO0
8
VIO18LDO0
10E
VIO18LDOBF0
8
VIO18LDOBF0
110
VIO18PSI0
8
VIO18 LDO PSI register0
111
VIO18PSI1
8
VIO18 LDO PSI register1
113
VSFLDO0
8
VSFLDO0
114
VSFLDO1
8
VSFLDO1
117
VSFLDOBF0
8
VSFLDOBF0
119
VSFPSI0
8
VSF LDO PSI register0
11A
VSFPSI1
8
VSF LDO PSI register1
11C
SMPSCTL0
8
SMPS Control Register 0
121
SMPSANA3
8
SMPS Analog Control Register 3
135
VCBUCK19
8
VCORE BUCK register 19
13E
VCBUCKPSI0
8
VCORE BUCK PSI register 0
13F
VCBUCKPSI1
8
VCORE BUCK PSI register 1
140
VCBUCKPSI2
8
VCORE BUCK PSI register 2
200
AUXADC_ADC
0
8
AUXADC ADC register 0
201
AUXADC_ADC
0_H
8
AUXADC ADC register 0_H
202
AUXADC_ADC
1
8
AUXADC ADC register 1
203
AUXADC_ADC
1_H
8
AUXADC ADC register 1_H
204
AUXADC_ADC
2
8
AUXADC ADC register 2
205
AUXADC_ADC
2_H
8
AUXADC ADC register 2_H
206
AUXADC_ADC
3
8
AUXADC ADC register 3
207
AUXADC_ADC
3_H
8
AUXADC ADC register 3_H
208
AUXADC_ADC
4
8
AUXADC ADC register 4
209
AUXADC_ADC
4_H
8
AUXADC ADC register 4_H
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MT2523 Series Reference Manual
Module name: PMIC_REG Base address: (+0h)
21A
AUXADC_ADC
13
8
AUXADC ADC register 13
21B
AUXADC_ADC
13_H
8
AUXADC ADC register 13_H
21C
AUXADC_ADC
14
8
AUXADC ADC register 14
21D
AUXADC_ADC
14_H
8
AUXADC ADC register 14_H
21E
AUXADC_ADC
15
8
AUXADC ADC register 15
21F
AUXADC_ADC
15_H
8
AUXADC ADC register 15_H
226
AUXADC_ADC
19
8
AUXADC ADC register 19
227
AUXADC_ADC
19_H
8
AUXADC ADC register 19_H
228
AUXADC_ADC
20
8
AUXADC ADC register 20
229
AUXADC_ADC
20_H
8
AUXADC ADC register 20_H
22A
AUXADC_ADC
21
8
AUXADC ADC register 21
22B
AUXADC_ADC
21_H
8
AUXADC ADC register 21_H
22C
AUXADC_ADC
22
8
AUXADC ADC register 22
22D
AUXADC_ADC
22_H
8
AUXADC ADC register 22_H
22E
AUXADC_ADC
23
8
AUXADC ADC register 23
22F
AUXADC_ADC
23_H
8
AUXADC ADC register 23_H
230
AUXADC_ADC
24
8
AUXADC ADC register 24
231
AUXADC_ADC
24_H
8
AUXADC ADC register 24_H
232
AUXADC_ADC
25
8
AUXADC ADC register 25
233
AUXADC_ADC
25_H
8
AUXADC ADC register 25_H
234
AUXADC_ADC
26
8
AUXADC ADC register 26
235
AUXADC_ADC
26_H
8
AUXADC ADC register 26_H
236
AUXADC_ADC
27
8
AUXADC ADC register 27
237
AUXADC_ADC
27_H
8
AUXADC ADC register 27_H
238
AUXADC_ADC
28
8
AUXADC ADC register 28
239
AUXADC_ADC
28_H
8
AUXADC ADC register 28_H
23A
AUXADC_ADC
29
8
AUXADC ADC register 29
23B
AUXADC_ADC
29_H
8
AUXADC ADC register 29_H
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MT2523 Series Reference Manual
Module name: PMIC_REG Base address: (+0h)
23C
AUXADC_ADC
30
8
AUXADC ADC register 30
23D
AUXADC_ADC
30_H
8
AUXADC1 ADC register 0_H
23E
AUXADC_ADC
31
8
AUXADC ADC register 31
23F
AUXADC_ADC
31_H
8
AUXADC1 ADC register 1_H
240
AUXADC_ADC
32
8
AUXADC ADC register 32
241
AUXADC_ADC
32_H
8
AUXADC1 ADC register 2_H
242
AUXADC_ADC
33
8
AUXADC ADC register 33
243
AUXADC_ADC
33_H
8
AUXADC1 ADC register 3_H
244
AUXADC_ADC
34
8
AUXADC ADC register 34
245
AUXADC_ADC
34_H
8
AUXADC1 ADC register 4_H
246
AUXADC_ADC
35
8
AUXADC ADC register 35
247
AUXADC_ADC
35_H
8
AUXADC ADC register 33_H
248
AUXADC_ADC
36
8
AUXADC ADC register 36
249
AUXADC_ADC
36_H
8
AUXADC ADC register _H
24A
AUXADC_ADC
37
8
AUXADC ADC register 37
24B
AUXADC_ADC
37_H
8
AUXADC1 ADC register _H
24C
AUXADC_ADC
38
8
AUXADC ADC register 34_H
24D
AUXADC_ADC
38_H
8
AUXADC1 ADC register 34_H
24E
AUXADC_STA
0
8
AUXADC_STA0
24F
AUXADC_STA
0_H
8
AUXADC_STA0_H
250
AUXADC_STA
1
8
AUXADC_STA1
251
AUXADC_STA
1_H
8
AUXADC_STA1_H
2BE
AUXADC_LBA
T2_4
8
AUXADC_LBAT2_4
2BF
AUXADC_LBA
T2_4_H
8
AUXADC_LBAT2_4_H
2C0
AUXADC_LBA
T2_5
8
AUXADC_LBAT2_5
2C1
AUXADC_LBA
T2_5_H
8
AUXADC_LBAT2_5_H
2EF
VBTLDO0
8
VBT LDO register 0
2F3
VBTLDOBF0
8
VBT LDO buffer register 0
2F5
VBTPSI0
8
VBTP LDO PSI register0
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MT2523 Series Reference Manual
Module name: PMIC_REG Base address: (+0h)
2F6
VBTPSI1
8
VBTP LDO PSI register1
2F8
VALDO0
8
VA LDO register 0
2FC
VALDOBF0
8
VA LDO buffer register 0
2FE
VAPSI0
8
VA LDO PSI register0
2FF
VAPSI1
8
VA LDO PSI register1
300
VCAMACTL0
8
VCAMA Control register 0
302
VCAMALDO0
8
VCAMALDO0
303
VCAMALDO1
8
VCAMA LDO register 1
306
VCAMALDOBF
0
8
VCAMA LDO buffer register 0
30A
PSWCTL0
8
PSW Control register 0
30F
SWIO18PSI
8
SWIO18 LDO PSI register
313
VIO28LDO0
8
VIO28LDO0
317
VIO28LDOBF0
8
VIO28LDOBF0
319
VIO28PSI0
8
VIO28 LDO PSI register0
31A
VIO28PSI1
8
VIO28 LDO PSI register1
31C
VMCLDO0
8
VMCLDO0
31D
VMCLDO1
8
VMCLDO1
320
VMCLDOBF0
8
VMCLDOBF0
322
VMCPSI0
8
VMC LDO PSI register0
323
VMCPSI1
8
VMC LDO PSI register1
324
VIBRCTL0
8
VIBR Control register 0
326
VIBRLDO0
8
VIBRLDO0
327
VIBRLDO1
8
VIBRLDO1
32A
VIBRLDOBF0
8
VIBRLDOBF0
32C
ISINK0_CON0
8
ISINK0 Control Register 0
32D
ISINK0_CON1
8
ISINK0 Control Register 1
32E
ISINK0_CON2
8
ISINK0 Control Register 2
330
ISINK0_CON4
8
ISINK0 Control Register 4
331
ISINK0_CON5
8
ISINK0 Control Register 5
332
ISINK0_CON6
8
ISINK0 Control Register 6
333
ISINK1_CON0
8
ISINK1 Control Register 0
334
ISINK1_CON1
8
ISINK1 Control Register 1
335
ISINK1_CON2
8
ISINK1 Control Register 2
337
ISINK1_CON4
8
ISINK1 Control Register 4
338
ISINK1_CON5
8
ISINK1 Control Register 5
339
ISINK1_CON6
8
ISINK1 Control Register 6
33A
ISINK2_CON1
8
ISINK2 Control Register 1
33C
ISINK3_CON1
8
ISINK3 Control Register 1
33F
ISINK_ANA0_
H
8
ISINKS ACD Interface 0 High
344
ISINK_EN_CT
RL_Low
8
ISINK Enable control Low
345
ISINK_EN_CT
RL_High
8
ISINK Enable control High
346
ISINK_MODE
_CTRL
8
ISINK mode control
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MT2523 Series Reference Manual
1D
Reset
config
3
RSTCFG3
Bit
7
6
5
4
3
Name
Type
Reset
00
2
WDTRST
B_STAT
US
RO
0
Bit(s)
Name
Description
2
WDTRSTB_STATUS
WDTRSTB reset status
1'b0: No occured
1'b1: Occurred
1E
Name
Type
Reset
Bit(s)
7
ints_dldo
_pg_f
W1C
0
6
ints_dldo
_pg_r
W1C
0
5
ints_dldo
_oc_f
W1C
0
4
ints_dldo
_oc_r
W1C
0
Name
7
ints_dldo_pg_f
6
ints_dldo_pg_r
5
ints_dldo_oc_f
4
ints_dldo_oc_r
3
ints_aldo_pg_f
2
ints_aldo_pg_r
1
ints_aldo_oc_f
0
ints_aldo_oc_r
3
ints_aldo
_pg_f
W1C
0
00
2
ints_aldo
_pg_r
W1C
0
00
Bit
7
6
5
4
3
2
Name
ints_pke
ylp_f
ints_pke
ylp_r
ints_vc_l
do_oc_f
ints_vc_l
do_oc_r
ints_vcor
e_pg_f
ints_vcor
e_pg_r
Type
Reset
W1C
0
W1C
0
W1C
0
W1C
0
W1C
0
W1C
0
Name
ints_pkeylp_f
6
ints_pkeylp_r
0
ints_aldo
_oc_r
W1C
0
Interru
pt
status/
clear 1
INTSTS1
7
1
ints_aldo
_oc_f
W1C
0
Description
1F
Bit(s)
0
Interru
pt
status/
clear 0
INTSTS0
Bit
1
1
ints_vc_
buck_oc
_f
W1C
0
0
ints_vc_
buck_oc
_r
W1C
0
Description
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MT2523 Series Reference Manual
Bit(s)
Name
Description
5
ints_vc_ldo_oc_f
4
ints_vc_ldo_oc_r
3
ints_vcore_pg_f
2
ints_vcore_pg_r
1
ints_vc_buck_oc_f
0
ints_vc_buck_oc_r
20
Interru
pt
status/
clear 2
INTSTS2
Bit
Name
Type
Reset
7
ints_pwr
key_f
W1C
0
Bit(s)
Name
7
ints_pwrkey_f
6
ints_pwrkey_r
5
ints_axpkey_f
4
ints_axpkey_r
3
ints_thm2_f
2
ints_thm2_r
1
ints_thm1_f
0
ints_thm1_r
6
ints_pwr
key_r
W1C
0
5
ints_axp
key_f
W1C
0
4
ints_axp
key_r
W1C
0
Name
Type
Reset
Bit(s)
7
Name
7
ints_thr_l_f
6
ints_thr_l_r
5
ints_thr_h_f
4
ints_thr_h_r
3
ints_chrdet_f
2
ints_chrdet_r
1
ints_chgov_f
0
ints_chgov_r
1
ints_thm
1_f
W1C
0
0
ints_thm
1_r
W1C
0
Interru
pt
status/
clear 3
INTSTS3
ints_thr_
l_f
W1C
0
2
ints_thm
2_r
W1C
0
Description
21
Bit
3
ints_thm
2_f
W1C
0
00
6
ints_thr_
l_r
W1C
0
5
ints_thr_
h_f
W1C
0
4
ints_thr_
h_r
W1C
0
3
ints_chr
det_f
W1C
0
00
2
ints_chr
det_r
W1C
0
1
ints_chg
ov_f
W1C
0
0
ints_chg
ov_r
W1C
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 603 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
22
Interru
pt
status/
clear 4
INTSTS4
Bit
7
6
5
ints_psw
_pg_f
W1C
0
Name
Type
Reset
Bit(s)
4
ints_psw
_pg_r
W1C
0
Name
5
ints_psw_pg_f
4
ints_psw_pg_r
3
ints_over40_f
2
ints_over40_r
1
ints_over110_f
0
ints_over110_r
Bit
7
6
5
4
Name
ints_war
m_lv
ints_hot
_lv
ints_chr
wdt_lv
ints_bval
id_det_lv
Type
Reset
W1C
0
W1C
0
W1C
0
W1C
0
7
ints_warm_lv
6
ints_hot_lv
5
ints_chrwdt_lv
4
ints_bvalid_det_lv
3
ints_vbat_undet_lv
2
ints_vbaton_hv_lv
1
ints_bat_l_lv
0
ints_bat_h_lv
Name
Type
Reset
00
3
ints_vbat
_undet_l
v
W1C
0
2
1
0
ints_vbat
on_hv_lv
ints_bat_
l_lv
ints_bat_
h_lv
W1C
0
W1C
0
W1C
0
Interru
pt
status/
clear 6
INTSTS6
7
0
ints_over
110_r
W1C
0
Description
24
Bit
1
ints_over
110_f
W1C
0
Interru
pt
status/
clear 5
INTSTS5
Name
2
ints_over
40_r
W1C
0
Description
23
Bit(s)
3
ints_over
40_f
W1C
0
00
6
5
4
ints_ad_l
bat_lv
W1C
0
3
ints_nag
_c_lv
W1C
0
© 2015 - 2018 Airoha Technology Corp.
00
2
ints_imp
_lv
W1C
0
1
ints_cold
_lv
W1C
0
0
ints_cool
_lv
W1C
0
Page 604 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
4
ints_ad_lbat_lv
3
ints_nag_c_lv
2
ints_imp_lv
1
ints_cold_lv
0
ints_cool_lv
Description
25
Interru
pt
enable
0
INTEN0
Bit
Name
Type
Reset
Bit(s)
7
inte_dld
o_pg_f
RW
0
6
inte_dld
o_pg_r
RW
0
5
inte_dld
o_oc_f
RW
0
4
inte_dldo
_oc_r
RW
0
Name
7
inte_dldo_pg_f
6
inte_dldo_pg_r
5
inte_dldo_oc_f
4
inte_dldo_oc_r
3
inte_aldo_pg_f
2
inte_aldo_pg_r
1
inte_aldo_oc_f
0
inte_aldo_oc_r
3
inte_aldo
_pg_f
RW
0
00
2
inte_aldo
_pg_r
RW
0
Interru
pt
enable
1
INTEN1
00
Bit
7
6
5
4
3
2
Name
inte_pke
ylp_f
inte_pke
ylp_r
inte_vc_l
do_oc_f
inte_vc_l
do_oc_r
inte_vcor
e_pg_f
inte_vcor
e_pg_r
Type
Reset
RW
0
RW
0
RW
0
RW
0
RW
0
RW
0
Name
7
inte_pkeylp_f
6
inte_pkeylp_r
5
inte_vc_ldo_oc_f
4
inte_vc_ldo_oc_r
3
inte_vcore_pg_f
2
inte_vcore_pg_r
0
inte_aldo
_oc_r
RW
0
Description
26
Bit(s)
1
inte_aldo
_oc_f
RW
0
1
inte_vc_buck_oc_f
0
inte_vc_buck_oc_r
1
inte_vc_
buck_oc
_f
RW
0
0
inte_vc_
buck_oc
_r
RW
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 605 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
27
Interru
pt
enable
2
INTEN2
Bit
Name
Type
Reset
Bit(s)
7
inte_pwr
key_f
RW
0
6
inte_pwr
key_r
RW
0
5
inte_axp
key_f
RW
0
4
inte_axp
key_r
RW
0
Name
7
inte_pwrkey_f
6
inte_pwrkey_r
5
inte_axpkey_f
4
inte_axpkey_r
3
inte_thm
2_f
RW
0
00
2
inte_thm
2_r
RW
0
1
inte_thm
1_f
RW
0
Description
3
inte_thm2_f
Thermal interrupt 1 falling: T < 40
2
inte_thm2_r
Thermal interrupt 1 rising: T > 55
1
inte_thm1_f
Thermal interrupt 1 falling: T < 110
0
inte_thm1_r
Thermal interrupt 1 rising: T > 125
28
Interru
pt
enable
3
INTEN3
Bit
Name
Type
Reset
7
inte_thr
_l_f
RW
0
Bit(s)
Name
7
inte_thr_l_f
6
inte_thr_l_r
5
inte_thr_h_f
4
inte_thr_h_r
3
inte_chrdet_f
2
inte_chrdet_r
1
inte_chgov_f
0
inte_chgov_r
6
inte_thr_
l_r
RW
0
5
inte_thr_
h_f
RW
0
4
inte_thr_
h_r
RW
0
Name
Type
Reset
2
inte_chr
det_r
RW
0
1
inte_chg
ov_f
RW
0
0
inte_chg
ov_r
RW
0
Interru
pt
enable
4
INTEN4
7
3
inte_chr
det_f
RW
0
00
Description
29
Bit
0
inte_thm
1_r
RW
0
6
5
inte_psw
_pg_f
RW
0
4
inte_psw
_pg_r
RW
0
3
inte_over
40_f
RW
0
© 2015 - 2018 Airoha Technology Corp.
00
2
inte_over
40_r
RW
0
1
inte_over
110_f
RW
0
0
inte_over
110_r
RW
0
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MT2523 Series Reference Manual
Bit(s)
Name
5
inte_psw_pg_f
4
inte_psw_pg_r
3
inte_over40_f
2
inte_over40_r
1
inte_over110_f
0
inte_over110_r
Description
2A
Interru
pt
enable
5
INTEN5
Bit
7
6
5
4
Name
inte_war
m_lv
inte_hot
_lv
inte_chr
wdt_lv
inte_bval
id_det_lv
Type
Reset
RW
0
RW
0
RW
0
RW
0
Bit(s)
Name
7
inte_warm_lv
6
inte_hot_lv
5
inte_chrwdt_lv
4
inte_bvalid_det_lv
3
inte_vbat_undet_lv
2
inte_vbaton_hv_lv
1
inte_bat_l_lv
0
inte_bat_h_lv
7
Type
Reset
Bit(s)
Name
4
inte_ad_lbat_lv
3
inte_nag_c_lv
2
inte_imp_lv
1
inte_cold_lv
0
inte_cool_lv
2
1
0
inte_vbat
on_hv_lv
inte_bat
_l_lv
inte_bat
_h_lv
RW
0
RW
0
RW
0
Interru
pt
enable
6
INTEN6
Bit
3
inte_vbat
_undet_l
v
RW
0
Description
2B
Name
00
6
5
4
inte_ad_l
bat_lv
RW
0
3
inte_nag
_c_lv
RW
0
00
2
inte_imp
_lv
RW
0
1
inte_cold
_lv
RW
0
0
inte_cool
_lv
RW
0
Description
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
2C
interru
pt misc
registe
r
INTMISC
Bit
7
6
5
4
00
3
2
Name
Type
Reset
Bit(s)
Name
1
rg_intr_mode_sel
0
polarity
6
5
Name
Type
Reset
4
STS_RB
OOT
RO
0
3
STS_SPA
R
RO
0
2
STS_CH
RIN
RO
0
Name
Description
4
STS_RBOOT
Power on for cold reset
1
STS_RTC
A
RO
0
3
STS_SPAR
Power on for SPAR event
2
STS_CHRIN
Power on for charger insertion
1
STS_RTCA
Power on for RTC alarm
0
STS_PWRKEY
Power on for PWREKY press
2E
Name
Type
Reset
7
6
STS_PKE
YLP
RO
0
5
STS_CRS
T
RO
0
0
STS_PW
RKEY
RO
0
Power
off
source
record
registe
r
POFFSTS
STS_NO
RMOFF
RO
0
RW
0
00
Bit(s)
Bit
polarity
Power
on
source
record
registe
r
PONSTS
7
0
Description
2D
Bit
1
rg_intr_
mode_sel
RW
0
4
STS_WR
ST
RO
0
3
STS_TH
RDN
RO
0
00
2
STS_PSO
C
RO
0
Bit(s)
Name
Description
7
STS_NORMOFF
Power off for PWRHOLD clear
6
STS_PKEYLP
Power off for power key(s) long press
5
STS_CRST
Power off for cold reset
4
STS_WRST
Power reset for warm reset
© 2015 - 2018 Airoha Technology Corp.
1
STS_PGF
AIL
RO
0
0
STS_UVL
O
RO
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
3
STS_THRDN
Power off for thermal shutdown
2
STS_PSOC
Power off for SOC WDT reset
1
STS_PGFAIL
Power off for PWRGOOD failure
0
STS_UVLO
Power off for UVLO event
2F
Power
excepti
on
shutdo
wn
status
0
PDNSTS0
Bit
7
Name
Type
Reset
6
STS_PD
N_VSF_
PG
RO
0
5
STS_PD
N_VIO18
_PG
RO
0
4
STS_PD
N_VCOR
E_PG
RO
0
3
STS_PD
N_VA18_
PG
RO
0
00
2
STS_PD
N_VCAM
A_PG
RO
0
Bit(s)
Name
Description
6
STS_PDN_VSF_PG
Log the shutdown PG
5
STS_PDN_VIO18_P
G
Log the shutdown PG
4
STS_PDN_VCORE_
PG
Log the shutdown PG
3
STS_PDN_VA18_PG
Log the shutdown PG
2
STS_PDN_VCAMA_
PG
Log the shutdown PG
1
STS_PDN_VA_PG
Log the shutdown PG
0
STS_PDN_VBT_PG
Log the shutdown PG
30
Name
Type
Reset
7
STS_PD
N_SWBA
T_PG
RO
0
6
STS_PD
N_VIBR_
PG
RO
0
5
STS_PD
N_VUSB
_PG
RO
0
0
STS_PD
N_VBT_
PG
RO
0
Power
excepti
on
shutdo
wn
status 1
PDNSTS1
Bit
1
STS_PD
N_VA_P
G
RO
0
4
STS_PD
N_VMC_
PG
RO
0
3
STS_PD
N_SWM
P_PG
RO
0
00
2
STS_PD
N_VIO28
_PG
RO
0
Bit(s)
Name
Description
7
STS_PDN_SWBAT_
PG
Log the shutdown PG
6
STS_PDN_VIBR_PG
Log the shutdown PG
5
STS_PDN_VUSB_P
G
Log the shutdown PG
© 2015 - 2018 Airoha Technology Corp.
1
STS_PD
N_SWDP
_PG
RO
0
0
STS_PD
N_SWX
M_PG
RO
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4
STS_PDN_VMC_PG
Log the shutdown PG
3
STS_PDN_SWMP_P
G
Log the shutdown PG
2
STS_PDN_VIO28_P
G
Log the shutdown PG
1
STS_PDN_SWDP_P
G
Log the shutdown PG
0
STS_PDN_SWXM_P
G
Log the shutdown PG
31
Power
excepti
on
shutdo
wn
status 2
PDNSTS2
Bit
7
6
5
Name
STS_PD
N_VIO18
_OC
Type
Reset
RO
0
4
STS_PD
N_VCOR
E_LDO_
OC
RO
0
00
3
STS_PD
N_VCOR
E_BUCK
_OC
RO
0
2
1
0
STS_PD
N_VIO28
_OC
STS_PD
N_VA_O
C
STS_PD
N_VMC_
OC
RO
0
RO
0
RO
0
Bit(s)
Name
Description
5
STS_PDN_VIO18_O
C
Log the shutdown OC
4
STS_PDN_VCORE_
LDO_OC
Log the shutdown OC
3
STS_PDN_VCORE_
BUCK_OC
Log the shutdown OC
2
STS_PDN_VIO28_O
C
Log the shutdown OC
1
STS_PDN_VA_OC
Log the shutdown OC
0
STS_PDN_VMC_OC
Log the shutdown OC
32
Power
supply
status
0
registe
r
PSSTS0
Bit
7
Name
Type
Reset
Bit(s)
Name
6
STS_VA18_ENA
5
STS_VA_ENA
6
STS_VA1
8_ENA
RO
0
5
STS_VA_
ENA
RO
0
4
STS_VBT
_ENA
RO
0
3
STS_VCA
MA_ENA
RO
0
00
2
STS_VUS
B_ENA
RO
0
1
STS_OSC
_EN
RO
0
0
STS_IVG
EN_EN
RO
0
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4
STS_VBT_ENA
3
STS_VCAMA_ENA
2
STS_VUSB_ENA
1
STS_OSC_EN
0
STS_IVGEN_EN
33
Power
supply
status 1
registe
r
PSSTS1
Bit
7
00
6
5
4
3
2
Name
STS_VIB
R_ENA
STS_VM
C_ENA
STS_VIO
28_ENA
STS_VSF
_ENA
STS_VIO
18_ENA
Type
Reset
RO
0
RO
0
RO
0
RO
0
RO
0
Bit(s)
Name
6
STS_VIBR_ENA
5
STS_VMC_ENA
4
STS_VIO28_ENA
STS_VSF_ENA
2
STS_VIO18_ENA
1
STS_VC_LDO_ENA
0
STS_VC_BUCK_EN
A
34
Power
supply
status 2
registe
r
PSSTS2
7
00
6
5
4
3
2
1
Name
PKEYLP
_VAL
AXPKEY
_VAL
PWRKEY
_VAL
STS_SW
MP_ENA
STS_SW
DP_ENA
STS_SW
XM_ENA
Type
Reset
RO
0
RO
0
RO
0
RO
0
RO
0
RO
0
Bit(s)
Name
6
PKEYLP_VAL
5
AXPKEY_VAL
4
PWRKEY_VAL
3
STS_SWMP_ENA
0
STS_VC_
BUCK_E
NA
RO
0
Description
3
Bit
1
STS_VC_
LDO_EN
A
RO
0
2
STS_SWDP_ENA
1
STS_SWXM_ENA
0
STS_SWBAT_ENA
0
STS_SW
BAT_EN
A
RO
0
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
35
Power
supply
Overcu
rrent
status
0
registe
r
PSOCSTS0
Bit
7
6
5
4
Name
STS_VSF
_OC
STS_VIO
18_OC
STS_VC_
LDO_OC
Type
Reset
RO
0
RO
0
RO
0
Bit(s)
Name
6
STS_VSF_OC
5
STS_VIO18_OC
4
STS_VC_LDO_OC
3
STS_VC_BUCK_OC
2
STS_VA18_OC
1
STS_VA_OC
0
STS_VBT_OC
Name
Type
Reset
Bit(s)
Name
4
STS_VIBR_OC
3
STS_VCAMA_OC
2
STS_VUSB_OC
1
STS_VMC_OC
0
STS_VIO28_OC
2
1
0
STS_VA1
8_OC
STS_VA_
OC
STS_VBT
_OC
RO
0
RO
0
RO
0
Power
supply
Overcu
rrent
status 1
registe
r
PSOCSTS1
7
3
STS_VC_
BUCK_O
C
RO
0
Description
36
Bit
00
6
5
4
STS_VIB
R_OC
RO
0
3
STS_VCA
MA_OC
RO
0
00
2
STS_VUS
B_OC
RO
0
1
STS_VM
C_OC
RO
0
0
STS_VIO
28_OC
RO
0
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
37
Power
supply
PWRG
OOD
status
0
registe
r
PSPGSTS0
Bit
7
Name
Type
Reset
Bit(s)
6
STS_VSF
_PG
RO
0
5
STS_VIO
18_PG
RO
0
4
STS_VCO
RE_PG
RO
0
Name
6
STS_VSF_PG
5
STS_VIO18_PG
4
STS_VCORE_PG
3
STS_VA18_PG
2
STS_VCAMA_PG
1
STS_VA_PG
0
STS_VBT_PG
Name
Type
Reset
7
Bit(s)
Name
7
STS_SWBAT_PG
6
STS_VIBR_PG
5
STS_VUSB_PG
4
STS_VMC_PG
3
STS_SWMP_PG
2
STS_VIO28_PG
1
STS_SWDP_PG
0
STS_SWXM_PG
1
STS_VA_
PG
RO
0
0
STS_VBT
_PG
RO
0
Power
supply
PWRG
OOD
status 1
registe
r
PSPGSTS1
STS_SW
BAT_PG
RO
0
2
STS_VCA
MA_PG
RO
0
Description
38
Bit
3
STS_VA1
8_PG
RO
0
00
6
STS_VIB
R_PG
RO
0
5
STS_VUS
B_PG
RO
0
4
STS_VM
C_PG
RO
0
3
STS_SW
MP_PG
RO
0
00
2
STS_VIO
28_PG
RO
0
1
STS_SW
DP_PG
RO
0
0
STS_SW
XM_PG
RO
0
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
39
Power
supply
Operati
onal
mode
status
0
registe
r
PSOMSTS0
Bit
7
6
STS_VA1
8_OPMO
D
RO
0
Name
Type
Reset
Bit(s)
Name
6
STS_VA18_OPMOD
5:4
STS_VCAMA_OPMO
D
5
4
STS_VCAMA_OPMO
D
0
RO
0
STS_VA_OPMOD
1:0
STS_VBT_OPMOD
3A
Type
Reset
7
6
5
STS_VSF_OPMOD
0
2
STS_VA_OPMOD
0
RO
0
1
0
STS_VBT_OPMOD
0
RO
0
Power
supply
Operati
onal
mode
status 1
registe
r
PSOMSTS1
Bit
3
Description
3:2
Name
00
RO
Bit(s)
Name
7:6
STS_VSF_OPMOD
5:4
STS_VIO18_OPMOD
3:2
STS_VC_LDO_OPM
OD
1:0
STS_VDIG18_OPMO
D
0
4
STS_VIO18_OPMOD
0
RO
0
3
00
2
STS_VC_LDO_OPMO
D
RO
0
0
1
0
STS_VDIG18_OPMO
D
RO
0
0
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
3B
Power
supply
Operati
onal
mode
status 2
registe
r
PSOMSTS2
Bit
Name
Type
Reset
Bit(s)
7
6
STS_VIBR_OPMOD
RO
0
0
5
4
STS_VUSB_OPMOD
RO
0
0
Name
7:6
STS_VIBR_OPMOD
5:4
STS_VUSB_OPMOD
3:2
STS_VMC_OPMOD
1:0
STS_VIO28_OPMO
D
6
Name
Type
Reset
Bit(s)
Name
5
STS_THM_DEB_ST
S
4
STS_THM_RAW_ST
S
3
STS_THM_OVER125
2
STS_THM_OVER110
1
STS_THM_OVER55
0
STS_THM_OVER40
5
STS_TH
M_DEB_
STS
RO
0
4
STS_TH
M_RAW
_STS
RO
0
0
3
STS_TH
M_OVER
125
RO
0
00
2
STS_TH
M_OVER
110
RO
0
1
STS_TH
M_OVER
55
RO
0
0
STS_TH
M_OVER
40
RO
0
Wake
Up Fuel
Gauge
Status
WKFG_STS
7
1
STS_VIO28_OPMOD
RO
0
0
Description
3D
Bit
2
Therm
al
Status
THMSTS
7
3
STS_VMC_OPMOD
RO
0
0
Description
3C
Bit
00
6
5
4
3
00
2
1
0
STS_WK
UP_FG_
DONE
W1C
0
Name
Type
Reset
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
0
STS_WKUP_FG_DO
NE
Description
40
PSI
control
registe
r
PSICTL
Bit
7
6
5
4
Name
3
2
0
RW
Description
3:2
RG_HNDOVR_LEN
VR handover time interval selection
00: 2T*32K
01: 3T*32K
10: 4T*32K
11: 5T*32K
0
RG_PSIOVR
PSI overwrite enable
0: disable
1: enable
41
PSI
status
registe
r
PSISTS
7
6
RGS_PSI_STS
RO
0
0
5
4
3
Bit(s)
Name
Description
7:6
RGS_PSI_STS
PSI bus status
48
7
6
5
00
2
1
0
PPC
configr
uation
0
registe
r
PPCCFG0
Bit
Name
Type
Reset
0
RG_PSIO
VR
RW
1
0
Name
Bit
Name
Type
Reset
1
RG_HNDOVR_LEN
Type
Reset
Bit(s)
01
4
3
3B
2
RG_WDTRST_ACT
RW
1
0
1
0
Bit(s)
Name
Description
3:2
RG_WDTRST_ACT
reg/warm reset may trigger VSF/SWXM power recycle. If
VSF/SWXM power recycle is triggered, the warm reset timing is
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
Description
extended to 150ms.
00: pmic reg reset
01: warm reset
10: cold reset
11: reserved
4A
PPC
configr
uation
2
registe
r
PPCCFG2
Bit
7
6
5
4
3
Name
Type
Reset
21
2
RG_XRS
T_ACT
RW
0
1
0
Bit(s)
Name
Description
2
RG_XRST_ACT
Response for EXTRSTB assertion during active modes
0: Warm reset
1: Cold reset
4B
PPC
control
0
registe
r
PPCCTL0
Bit
7
6
Name
Type
Reset
5
RG_CRS
T
RW
0
4
RG_WRS
T
RW
0
3
00
2
Bit(s)
Name
Description
5
RG_CRST
Issue cold reset
4
RG_WRST
Issue warm reset
4D
7
6
5
0
Shutdo
wn
configu
ration 1
registe
r
SHDNCFG1
Bit
Name
Type
Reset
1
4
3
08
2
RG_PKEY_LTIME
RW
1
0
© 2015 - 2018 Airoha Technology Corp.
1
0
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MT2523 Series Reference Manual
Bit(s)
3:2
Name
Description
RG_PKEY_LTIME
PWRKEY long press shutdown timing selection. (typical value)
00: 5 sec
01: 7 sec
10: 8 sec
11: 11 sec
87
Charge
r
control
registe
r0
CHR_CON0
Bit
Name
Type
Reset
Bit(s)
7
RGS_VC
DT_HV_
DET
RO
0
6
RGS_VC
DT_LV_
DET
RO
0
5
RGS_CH
RDET
RO
0
4
RG_NOR
M_CHR_
EN
RW
0
01
3
2
RG_CSD
AC_EN
RW
0
1
RGS_CH
R_LDO_
DET
RO
0
0
RG_VCD
T_HV_E
N
RW
1
Name
Description
7
RGS_VCDT_HV_DE
T
Charger-in high voltage detection (with de-bounce).
0: charge-in voltage < VCDT_HV_VTH
1:charge-in voltage > VCDT_HV_VTH
6
RGS_VCDT_LV_DE
T
Charger-in low voltage detection (with de-bounce).
0: charge-in voltage < VCDT_LV_VTH
1:charge-in voltage > VCDT_LV_VTH
5
RGS_CHRDET
Charger-in detect.
0: No valid charger detected
1: Valid charger detected
4
RG_NORM_CHR_E
N
Charger enable setting, which would gated CSDAC_EN, PCHR_AUTO
and HWCV_EN
0: Charger disabled
1: Charger enabled
3
RG_CSDAC_EN
CS DAC enable.
0: CS DAC disabled
1: CS DAC enabled
1
RGS_CHR_LDO_DE
T
Charger LDO detection. If not detected, pulse charger cannot work.
0: Invalid charger LDO
1: Valid charger LDO
0
RG_VCDT_HV_EN
ChargerIn HV detection function enable (0: disable, 1: enable)
88
Charge
r
Control
Registe
r1
CHR_CON1
Bit
Name
Type
Reset
Bit(s)
7
1
Name
6
5
RG_VCDT_HV_VTH
RW
0
1
4
3
1
0
B2
2
1
RG_VCDT_LV_VTH
RW
0
1
0
0
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s)
7:4
3:0
Name
Description
RG_VCDT_HV_VTH
ChargerIn HV detection threshold, default 4.3/9.5V for VTHL/VTHH
0000~1000: 4.2V~4.6V with 50mV/step
1001~1100: 6V~7.5V with 500mV/step
1101~1111: 8.5V~10.5V with 1000mV/step
RG_VCDT_LV_VTH
ChargerIn LV detection threshold, default 4.3/9.5V for VTHL/VTHH
0000~1000: 4.2V~4.6V with 50mV/step
1001~1100: 6V~7.5V with 500mV/step
1101~1111: 8.5V~10.5V with 1000mV/step
89
Charge
r
Control
Registe
r2
CHR_CON2
Bit
Name
Type
Reset
Bit(s)
7
RGS_VB
AT_CC_
DET
RO
0
6
RGS_VB
AT_CV_
DET
RO
0
5
4
3
RGS_CS
_DET
RG_CS_
EN
RO
0
RW
0
04
2
RG_VBA
T_CC_E
N
RW
1
1
RG_VBA
T_CV_E
N
RW
0
Name
Description
7
RGS_VBAT_CC_DE
T
VBAT voltage detection for CC.
0: VBAT voltage < VBAT_CC_VTH
1: VBAT voltage > VBAT_CC_VTH
6
RGS_VBAT_CV_DE
T
VBAT voltage detection for CV.
0: VBAT voltage < VBAT_CV_VTH
1: VBAT voltage > VBAT_CV_VTH
5
RGS_CS_DET
Current sense voltage detection.
0: CS voltage < CS_VTH
1: CS voltage > CS_VTH
3
RG_CS_EN
Current sense voltage detection comparator enable.
0: Disabled
1: Enabled
2
RG_VBAT_CC_EN
Battery CC detection enable (0: disable, 1: enable)
1
RG_VBAT_CV_EN
Battery CV detection enable
0: Disabled
1: Enabled
8A
Charge
r
Control
Registe
r3
CHR_CON3
Bit
Name
Type
Reset
7
6
RG_VBAT_CC_VTH
RW
1
1
0
5
4
0
0
3
CF
2
RG_VBAT_NORM_CV_VTH
RW
1
1
Bit(s)
Name
Description
7:6
RG_VBAT_CC_VTH
Battery CC dection threshold
© 2015 - 2018 Airoha Technology Corp.
1
0
1
1
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MT2523 Series Reference Manual
Bit(s)
Name
Description
00: 3.3V
01: 3.35V
10: 3.4V
11: 3.45V (default)
5:0
Battery CV dection threshold trimming option, default 4.2V
this register is used for FT CV threshold trimming and not for customer's fine
tuning (pchr_dig should invert MSB bit. otherwise, BC1.1 2.2V threshold would
be wrong)
000000~000011:3.5V, 3.6V, 3.7V, 3.8V
000100~000111:3.85V, 3.9V, 4V, 4.05V
001000~001011:4.1V, 4.125V, 4.1375v, 4.15V
001100~001111:4.1625V, 4.175V, 4.1875V, 4.2V (default)
010000~010011:4.2125V, 4.225V, 4.2375V, 4.25V
010100~010111:4.2625V, 4.275V, 4.2875V, 4.3V
011000~011011:4.3125V, 4.325V, 4.3375V, 4.35V
011100~011111:4.3625V, 4.375V, 4.3875V, 4.4V
100000~100011:4.4125V, 4.425V, 4.4375V, 4.45V
100100~100111:4.4625V, 4.475V, 4.4875V, 4.5V
101000:4.6V
111111:2.2V (BC1.1)
RG_VBAT_NORM_
CV_VTH
8B
CHR_CON4
Bit
Name
Type
Reset
Bit(s)
3:0
8D
Charge
r
Control
Registe
r4
7
6
5
4
3
1
0F
2
1
RG_NORM_CS_VTH
RW
1
1
Name
Description
RG_NORM_CS_VT
H
Current sense voltage detection threshold @ Rcs=65mohm
1111: 70mA
1110: 200mA
1101: 300mA
1100: 450mA (usbdl)
1011: 550mA
1010: 650mA
1001: 700mA
1000: 800mA
0111: 900mA
0110: 1000mA
0101: 1100mA
0100: 1200mA
0011: 1350mA
0010: 1500mA
0001: 1600mA
0000: 2000mA
0
1
Charge
r
Control
Registe
r6
03
© 2015 - 2018 Airoha Technology Corp.
Page 620 of 692
CHR_CON6
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
8D
Charge
r
Control
Registe
r6
CHR_CON6
Bit
7
Name
Type
Reset
6
RGS_VB
AT_OV_
DET
RO
0
5
RG_VBA
T_OV_D
EG
RW
0
4
03
3
2
1
0
RG_VBA
T_OV_E
N
RW
1
RG_VBAT_OV_VTH
0
0
RW
0
1
Bit(s)
Name
Description
6
RGS_VBAT_OV_DE
T
VBAT_OV voltage detection.
0 VBAT voltage < VBAT_OV_VTH
1 VBAT voltage > VBAT_OV_VTH
5
RG_VBAT_OV_DEG
VBAT OV voltage detection deglitch enable.
0 no debounce
1 debounce one cycle (1us)
4:1
RG_VBAT_OV_VTH
Battery over-voltag detection threshold
0000: 3.900V, 0001: 4.200V (default), 0010: 4.300V, 0011: 4.400V
0100: 4.450V, 0101: 4.500V, 0110: 4.600V, 0111: 4.700V
1000: 3.800V
0
RG_VBAT_OV_EN
Battery over-voltag for driving protection (0: disable, 1: enable)
8E
Charge
r
Control
Registe
r7
CHR_CON7
Bit
7
6
5
4
01
3
2
Name
BATON_
TDET_E
N
Type
Reset
RW
0
1
RG_BAT
ON_HT_
EN_RSV
0
RW
0
0
RG_BAT
ON_EN
Bit(s)
Name
Description
2
BATON_TDET_EN
0: N/A
1: Enable BATON Temperature detection
1
RG_BATON_HT_EN
_RSV0
Battery-On HW high temperature detection
0: Disabled
1: Enabled
RG_BATON_EN
BATON battery detection comparator enable (gated by
CHR_LDO_DET to default 1 in analog domain)
0: disable
1: enable (Default)
0
© 2015 - 2018 Airoha Technology Corp.
RW
1
Page 621 of 692
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MT2523 Series Reference Manual
8F
Charge
r
Control
Registe
r 7_H
CHR_CON7_H
Bit
Name
Type
Reset
7
Bit(s)
Name
0
na
6
5
4
2
1
0
na
RW
0
Description
92
Charge
r
Control
Registe
r9
CHR_CON9
Bit
3
00
7
6
5
4
3
00
2
1
0
RG_FRC
_CSVTH
_USBDL
RW
0
Name
Type
Reset
Bit(s)
Name
Description
0
RG_FRC_CSVTH_U
SBDL
Force CS DAC detection threshold to maximum in USB download
mode
0: CS_VTH=450mA in USBDL mode
1: CS_VTH=1600mA in USBDL mode
93
Charge
r
Control
Registe
r 10
CHR_CON10
Bit
7
Name
Type
Reset
6
RGS_OT
G_BVALI
D_DET
RO
0
5
RG_OTG
_BVALID
_EN
RW
1
4
3
20
2
1
0
Bit(s)
Name
Description
6
RGS_OTG_BVALID
_DET
Indicates if the session for B-peripheral is valid (0.8V 4V
5
RG_OTG_BVALID_
EN
OTG BValid detection enable (1: enable, 0: disable)
© 2015 - 2018 Airoha Technology Corp.
Page 622 of 692
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MT2523 Series Reference Manual
96
Charge
r
Control
Registe
r 13
CHR_CON13
Bit
7
6
5
Name
Type
Reset
Bit(s)
4
3:0
4
RG_CHR
WDT_EN
RW
1
3
2
1
0
RG_CHRWDT_TD
0
0
RW
0
0
Name
Description
RG_CHRWDT_EN
Enable setting for charger watch-dog timer
0 disable
1 enable if (CHR_EN(@CHR_CON0) == 1)
Note1: UVLO don't care this bit and will timeout after 3000s
Note2: PCHR_TESTMODE can force to control watch-dog enable by using this
bit
RG_CHRWDT_TD
Time constant setting for charger watch-dog timer
0: 4 sec
1: 8 sec
2: 16 sec
3: 32 sec
4: 128 sec
5: 256 sec
6: 512 sec
7: 1024 sec
8~15: 3000 sec
97
Charge
r
Control
Registe
r 13_H
CHR_CON13_H
Bit
10
7
6
5
4
00
3
2
1
0
RG_CHR
WDT_W
R
W1C
0
Name
Type
Reset
Bit(s)
Name
Description
0
RG_CHRWDT_WR
To reset charger watch-dog timer and update CHRWDT_TD
0: reset inactive
1: reset active and CHRWDT_TD updated to PCHR_DIG
99
Charge
r
Control
Registe
r 15
CHR_CON15
Bit
7
6
5
4
3
Name
© 2015 - 2018 Airoha Technology Corp.
00
2
RGS_CH
RWDT_O
1
RG_CHR
WDT_FL
0
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MT2523 Series Reference Manual
99
Charge
r
Control
Registe
r 15
CHR_CON15
00
UT
RO
0
Type
Reset
AG_WR
W1C
0
Bit(s)
Name
Description
2
RGS_CHRWDT_OU
T
Time-out flag for charger watch-dog timer
Read:
0: No time-out status
1: Time-out status asserted
1
RG_CHRWDT_FLA
G_WR
Clear time-out flag for charger watch-dog timer
Read:
0: N/A (while RGS_CHRWDT_OUT=0)
1: Clear time-out flag while RGS_CHRWDT_OUT=1
9A
Charge
r
Control
Registe
r 16
CHR_CON16
Bit
7
6
5
4
Name
Type
Reset
Bit(s)
3
RG_USB
DL_SET
RW
0
00
2
1
RG_USB
DL_RST
RW
0
0
Name
Description
3
RG_USBDL_SET
USBDL_MODE software set control
0: No effect
1: Force enter USBDL MODE
2
RG_USBDL_RST
USBDL_MODE software reset control
0: No effect
1: Force leave USBDL MODE (priority is less than USBDL_DET)
9B
Charge
r
Control
Registe
r 16_H
CHR_CON16_H
Bit
7
6
5
4
00
3
2
Name
RG_ADC
IN_CHR
_EN
RG_ADC
IN_VSEN
_EN
RG_ADC
IN_VBAT
_EN
Type
Reset
RW
0
RW
0
RW
0
Bit(s)
Name
1
RG_ADC
IN_VSEN
_EXT_B
ATON_E
N
RW
0
0
RG_ADC
IN_VSEN
_MUX_E
N
RW
0
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4
RG_ADCIN_CHR_E
N
AUXADC input source enable for CHR
0: Disabled
1: Enabled
3
RG_ADCIN_VSEN_
EN
AUXADC input source enable for VSEN
0: Disabled
1: Enabled
2
RG_ADCIN_VBAT_
EN
AUXADC input source enable for VBAT
0: Disabled
1: Enabled
1
RG_ADCIN_VSEN_
EXT_BATON_EN
AUXADC input source enable for external source to be switched to
AUXADC's Ch3
0: Disabled
1: Enabled
0
RG_ADCIN_VSEN_
MUX_EN
AUXADC input source enable for VSEN to be switched to VBAT's
divider
0: Disabled
1: Enabled
9C
Charge
r
Control
Registe
r 17
CHR_CON17
Bit
Name
Type
Reset
7
6
5
4
3
0
0
02
2
RG_UVLO_VTHL
RW
0
1
0
1
0
Bit(s)
Name
Description
4:0
RG_UVLO_VTHL
UVLO low threshold selection
00000: 2.5V, 00001: 2.55V, 00010: 2.6V (default), 00011: 2.65V
00100: 2.7V, 00101: 2.75V, 00110: 2.8V, 00111: 2.85V, 01000: 2.9V
9D
Charge
r
Control
Registe
r 18
CHR_CON18
Bit
Name
Type
Reset
Bit(s)
4:0
7
6
5
4
0
3
03
2
1
0
RG_LBAT_INT_VTH
RW
0
0
1
1
Name
Description
RG_LBAT_INT_VT
H
LBAT_INT threshold voltage
00000: 2.5V, 00001: 2.55V, 00010: 2.6V (default), 00011: 2.65V
00100: 2.7V, 00101: 2.75V, 00110: 2.8V, 00111: 2.85V,
01000: 2.9V, 01001: 2.95V, 01010: 3.0V, 01011: 3.05V,
01100: 3.1V, 01101: 3.15V, 01110: 3.2V, 01111: 3.25V,
11000: 3.3V, 11001: 3.35V, 11010: 3.4V
© 2015 - 2018 Airoha Technology Corp.
Page 625 of 692
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MT2523 Series Reference Manual
9E
Charge
r
Control
Registe
r 19
CHR_CON19
Bit
Name
Type
Reset
Bit(s)
2:0
7
6
5
4
Type
Reset
1
RG_BGR_RSEL
RW
0
Name
Description
RG_BGR_RSEL
BGR resistor (R0 = R1) selection, R2=85K, and
VBG=(R0/R2)*dVBE+VBE
0: c0, 780K (default)
1: c1, 820K
2: c2, 860K
3: c3, 900K
4: cm4, 620K
5: cm3, 660K
6: cm2, 700K
7: cm1, 740K
7
RGS_BC1
1_CMP_
OUT
RO
0
6
5
0
0
Charge
r
Control
Registe
r 20
CHR_CON20
Name
2
0
9F
Bit
3
00
4
3
00
2
RG_BC11_VSRC_EN
0
RW
0
1
0
RG_BC11
_RST
RW
0
RG_BC11
_BB_CT
RL
RW
0
Bit(s)
Name
Description
7
RGS_BC11_CMP_O
UT
Comparison result of BC11 charger detection
0: DP or DM < BC11_VREF_VTH
1: DP or DM > BC11_VREF_VTH
3:2
RG_BC11_VSRC_EN
BC11 voltage source. Set VDP_SRC = 0.6V
0: disable the voltage
1: enable the voltage source to DM
2: enable the voltage source to DP
3: forbidden
1
RG_BC11_RST
Reset BC11 detection mechanism in PCHR_DIG
0: No effect
1: BC11 detection mechanism is disabled in PCHR_DIG
0
RG_BC11_BB_CTRL
Force BC11 charger detection controlled by baseband
0: BC11 detection by PCHR_DIG (hardware mode)
1: BC11 detection by baseband (software mode)
© 2015 - 2018 Airoha Technology Corp.
Page 626 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
A0
Charge
r
Control
Registe
r 21
CHR_CON21
Bit
Name
Type
Reset
Bit(s)
7
6
5
RG_BC11_IPU_EN
0
RW
0
4
RG_BC11_IPD_EN
0
RW
0
3
00
2
RG_BC11_CMP_EN
0
RW
0
1
Name
Description
RG_BC11_IPU_EN
BC11 7~15uA pull up current enable
0: disable the pull-up current
1: enable the pull-up current to DM
2: enable the pull-up current to DP
3: forbidden
RG_BC11_IPD_EN
BC11 50~150uA pull down current
0: disable the pull-down current
1: enable the pull-down current to DM
2: enable the pull-down current to DP
3: forbidden
3:2
RG_BC11_CMP_EN
BC11 comparator connection
0: disable the comparator
1: enable the comparator to DM
2: enable the comparator to DP
3: forbidden
1:0
RG_BC11_VREF_VT
H
VREF threshold voltage for comparator
0: VREF_VTH=0.325V
1: VREF_VTH=1.2V
2 & 3: VREF_VTH=2.6V (for Apple adaptor)
7:6
5:4
A1
Charge
r
Control
Registe
r 21_H
CHR_CON21_H
Bit
7
6
5
0
RG_BC11_VREF_VT
H
RW
0
0
4
3
00
2
1
0
RG_BC11
_BIAS_E
N
RW
0
Name
Type
Reset
Bit(s)
Name
Description
0
RG_BC11_BIAS_EN
Enable BC11 detection bias circuit
0: Disabled
1: Enabled
© 2015 - 2018 Airoha Technology Corp.
Page 627 of 692
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MT2523 Series Reference Manual
A3
Charge
r
Control
Registe
r 23
CHR_CON23
Bit
Name
Type
Reset
7
6
0
5
RG_CSDAC_STP
RW
0
4
04
3
2
0
1
1
RG_CSDAC_DLY
RW
0
Bit(s)
Name
Description
6:4
RG_CSDAC_STP
Current DAC output step timer.
1/1/2/3/4/5/6/7 code/ per-step
2:0
RG_CSDAC_DLY
Current DAC output detection delay control.
16/32/64/128/256/512/1024/2048us
(512us default, reuse in HW CV Mode)
A4
Name
Type
Reset
7
RG_CHR
IND_DI
MMING
RW
0
6
5
4
RG_CHR
IND_ON
RW
1
0
Charge
r
Control
Registe
r 24
CHR_CON24
Bit
0
44
3
2
1
0
0
0
RG_LOW_ICH_DB
0
0
0
RW
1
Bit(s)
Name
Description
7
RG_CHRIND_DIM
MING
Enable pre-charge indicator dimming
0: Disabled
1: Enabled
6
RG_CHRIND_ON
Pre-charge indicator on (gated by CHR_LDO_DET to default 0 in
analog domain)
0: disable indicator
1: enable indicator
5:0
RG_LOW_ICH_DB
Plug out HW detection debounce time (base=16ms)
Debounce time : Code * 16ms
A5
Charge
r
Control
Registe
r 25
CHR_CON25
Bit
Name
Type
Reset
7
RG_ULC
_DET_E
N
RW
0
6
5
RG_HW
CV_EN
RW
0
4
RG_TRA
CKING_
EN
RW
1
3
© 2015 - 2018 Airoha Technology Corp.
10
2
RG_CSD
AC_MOD
E
RW
0
1
0
RG_VCD
T_MODE
RG_CV_
MODE
RW
0
RW
0
Page 628 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
7
RG_ULC_DET_EN
Enable charger plug out auto detection. This fuction has to be applied
with RG_HWCV_EN=1.
0: Disabled
1: Enabled
6
RG_HWCV_EN
Enable hardware CV current tracking
0: Disabled
1: Enabled
4
RG_TRACKING_EN
0 : Current calibration use CS_VTH[n] and CS_VTH[n-1] as high/low
threshold.
1 : Current calibration use CS_VTH[n] and LTH as high/low threshold.
2
RG_CSDAC_MODE
0: If not entering CC, charging is AUTO mode
1: If leaving UVLO, charging is controlled by RG_CSDAC_EN (same as CC
mode)
1
RG_VCDT_MODE
Charger detection mode selection
0: Charger detection can only be active in off state
1: Charger detection is active in both on and off state
0
RG_CV_MODE
Battery CV detection mode selection.
0: CV detection can only be active in off state
1: CV detection is active in both on and off state
AA
Charge
r
Control
Registe
r 30
CHR_CON30
Bit
Name
Type
Reset
7
6
5
1
0
0
4
3
RG_DAC_USBDL_MAX
RW
0
1
8E
2
1
0
1
1
0
Bit(s)
Name
Description
7:0
RG_DAC_USBDL_M
AX
USBDL maximum current setting
Default: 0x28E ==> 1010001110
AB
Charge
r
Control
Registe
r 30_H
CHR_CON30_H
Bit
7
6
5
4
3
Name
Type
Reset
02
2
Bit(s)
Name
Description
1:0
RG_DAC_USBDL_M
AX1
USBDL maximum current setting
Default: 0x28E ==> 1010001110
© 2015 - 2018 Airoha Technology Corp.
1
0
RG_DAC_USBDL_M
AX1
RW
1
0
Page 629 of 692
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MT2523 Series Reference Manual
AD
Charge
r
Control
Registe
r 42
CHR_CON42
Bit
7
6
5
4
3
00
2
Name
Type
Reset
1
Bit(s)
Name
Description
1
RG_ENVTEM_EN
To block CHR_DET signal to start_up
0: N/A
1: write enable
0
RG_ENVTEM_D
To block CHR_DET signal to start_up
1:block
0: non-block
AE
7
6
5
RG_ENV
TEM_D
RW
0
BATON
Control
Registe
r0
BATON_CON0
Bit
0
RG_ENV
TEM_EN
W1C
0
4
3
00
2
1
0
RG_BAT
ON_HT_
EN
RW
0
Name
Type
Reset
Bit(s)
Name
Description
0
RG_BATON_HT_EN
Battery-On HW high temperature detection
1'b0: disable
1'b1: enable
B0
Charge
r
Control
Registe
r 44
CHR_CON44
Bit
7
6
5
4
3
Name
Type
Reset
01
2
1
RGS_BA
TON_UN
DET
RO
0
Bit(s)
Name
Description
1
RGS_BATON_UNDE
T
Battery-On undetected (1: not detected, 0: detected)
0
RG_QI_BATON_LT
_EN
© 2015 - 2018 Airoha Technology Corp.
0
RG_QI_B
ATON_L
T_EN
RW
1
Page 630 of 692
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MT2523 Series Reference Manual
B1
Charge
r
Control
Registe
r 45
CHR_CON45
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
5
4
1
5:0
1
Description
RG_JW_CS_VTH
Current sense voltage detection threshold @ Rcs=65mohm
1111: 70mA
1110: 200mA
1101: 300mA
1100: 450mA (usbdl)
1011: 550mA
1010: 650mA
1001: 700mA
1000: 800mA
0111: 900mA
0110: 1000mA
0101: 1100mA
0100: 1200mA
0011: 1350mA
0010: 1500mA
0001: 1600mA
0000: 2000mA
7
6
0
1
Charge
r
Control
Registe
r 45_H
CHR_CON45_H
Bit(s)
2
RG_JW_CS_VTH
RW
1
1
Name
B2
Bit
Name
Type
Reset
3
0F
5
4
0
0
3
0F
2
RG_JW_CV_VTH
RW
1
1
1
0
1
1
Name
Description
RG_JW_CV_VTH
Battery CV dection threshold trimming option, default 4.2V
this register is used for FT CV threshold trimming and not for customer's fine
tuning (pchr_dig should invert MSB bit. otherwise, BC1.1 2.2V threshold would
be wrong)
000000~000011:3.5V, 3.6V, 3.7V, 3.8V
000100~000111:3.85V, 3.9V, 4V, 4.05V
001000~001011:4.1V, 4.125V, 4.1375v, 4.15V
001100~001111:4.1625V, 4.175V, 4.1875V, 4.2V (default)
010000~010011:4.2125V, 4.225V, 4.2375V, 4.25V
010100~010111:4.2625V, 4.275V, 4.2875V, 4.3V
011000~011011:4.3125V, 4.325V, 4.3375V, 4.35V
011100~011111:4.3625V, 4.375V, 4.3875V, 4.4V
100000~100011:4.4125V, 4.425V, 4.4375V, 4.45V
100100~100111:4.4625V, 4.475V, 4.4875V, 4.5V
101000:4.6V
© 2015 - 2018 Airoha Technology Corp.
Page 631 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
111111:2.2V (BC1.1)
B3
Charge
r
Control
Registe
r 46
CHR_CON46
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
5
4
1
5:0
1
Description
RG_JC_CS_VTH
Current sense voltage detection threshold @ Rcs=65mohm
1111: 70mA
1110: 200mA
1101: 300mA
1100: 450mA (usbdl)
1011: 550mA
1010: 650mA
1001: 700mA
1000: 800mA
0111: 900mA
0110: 1000mA
0101: 1100mA
0100: 1200mA
0011: 1350mA
0010: 1500mA
0001: 1600mA
0000: 2000mA
7
6
0
1
Charge
r
Control
Registe
r 46_H
CHR_CON46_H
Bit(s)
2
RG_JC_CS_VTH
RW
1
1
Name
B4
Bit
Name
Type
Reset
3
0F
5
4
0
0
3
0F
2
RG_JC_CV_VTH
RW
1
1
1
0
1
1
Name
Description
RG_JC_CV_VTH
Battery CV dection threshold trimming option, default 4.2V
this register is used for FT CV threshold trimming and not for customer's fine
tuning (pchr_dig should invert MSB bit. otherwise, BC1.1 2.2V threshold would
be wrong)
000000~000011:3.5V, 3.6V, 3.7V, 3.8V
000100~000111:3.85V, 3.9V, 4V, 4.05V
001000~001011:4.1V, 4.125V, 4.1375v, 4.15V
001100~001111:4.1625V, 4.175V, 4.1875V, 4.2V (default)
010000~010011:4.2125V, 4.225V, 4.2375V, 4.25V
010100~010111:4.2625V, 4.275V, 4.2875V, 4.3V
011000~011011:4.3125V, 4.325V, 4.3375V, 4.35V
011100~011111:4.3625V, 4.375V, 4.3875V, 4.4V
© 2015 - 2018 Airoha Technology Corp.
Page 632 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
100000~100011:4.4125V, 4.425V, 4.4375V, 4.45V
100100~100111:4.4625V, 4.475V, 4.4875V, 4.5V
101000:4.6V
111111:2.2V (BC1.1)
B5
Charge
r
Control
Registe
r 47
CHR_CON47
Bit
7
6
5
4
00
3
2
Name
Type
Reset
Bit(s)
Name
Description
1
RG_JEITA_EN
0:disable JEITA 1: enable JEITA
DA
7
6
5
4
3
Name
Type
Reset
01
2
RG_OVR
_VA18_P
MOD
RW
0
Bit(s)
Name
Description
2
RG_OVR_VA18_PM
OD
0: Normal mode
1: Low power mode
0
RG_VA18_EN
DB
7
6
5
1
0
RG_VA18
_EN
RW
1
VA18
Control
registe
r1
VA18CTL1
Bit
0
VA18
Control
registe
r0
VA18CTL0
Bit
1
RG_JEIT
A_EN
RW
0
4
3
Name
Type
Reset
05
2
RG_OFF
_VA18_P
MOD
RW
1
1
0
Bit(s)
Name
Description
2
RG_OFF_VA18_PM
OD
VA18 operational mode for system OFF mode
0: Normal mode
1: Low power mode
© 2015 - 2018 Airoha Technology Corp.
Page 633 of 692
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MT2523 Series Reference Manual
E2
VA18
LDO
PSI
registe
r0
VA18PSI0
Bit
7
6
Name
Type
Reset
Bit(s)
Name
5
RG_LP_VA18_PMO
D
1
RG_HP_VA18_PMO
D
5
RG_LP_
VA18_P
MOD
RW
0
4
6
Name
Type
Reset
Bit(s)
Name
5
RG_S1_VA18_PMO
D
4
RG_S1_VA18_ON
1
RG_S0_VA18_PMO
D
0
RG_S0_VA18_ON
5
RG_S1_V
A18_PM
OD
RW
0
4
Type
Reset
Bit(s)
3
2
RW
0
6
5
4
3
0
Name
1
RG_S0_
VA18_P
MOD
RW
0
0
RG_S0_
VA18_O
N
RW
0
VBT
Control
registe
r0
00
2
RG_OVR_VBT_PMO
D
Name
0
00
RG_S1_V
A18_ON
VBTCTL0
7
1
RG_HP_
VA18_P
MOD
RW
0
Description
E4
Bit
2
VA18
LDO
PSI
registe
r1
VA18PSI1
7
3
Description
E3
Bit
00
RW
0
1
RG_VBT
_OCFB_
EN
RW
0
0
RG_VBT
_EN
RW
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 634 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
3:2
RG_OVR_VBT_PM
OD
VBT LDO operation mode
00: Normal mode
01: Lite mode
10: LP mode
11: ULP mode
1
RG_VBT_OCFB_EN
0
RG_VBT_EN
VBT LDO enable
0: disable
1: enable
E5
VA
Control
registe
r0
VACTL0
Bit
7
6
5
4
Name
2
RG_OVR_VA_PMOD
Type
Reset
0
Bit(s)
Name
3:2
RG_OVR_VA_PMO
D
1
RG_VA_OCFB_EN
0
RG_VA_EN
0
Type
Reset
RG_VA_
EN
RW
0
6
5
4
3
10
2
RG_OVR_VC_LDO_P
MOD
Name
0
VCORE
LDO
Control
registe
r0
VCLDOCTL0
7
RW
1
RG_VA_
OCFB_E
N
RW
0
Description
E6
Bit
3
00
0
RW
Bit(s)
Name
Description
3:2
RG_OVR_VC_LDO_
PMOD
00: Normal mode
01: Lite mode
10: LP mode
11: ULP mode
1
RG_VC_LDO_OCFB
_EN
0
RG_VC_LDO_EN
© 2015 - 2018 Airoha Technology Corp.
0
1
RG_VC_
LDO_OC
FB_EN
RW
0
0
RG_VC_
LDO_EN
RW
0
Page 635 of 692
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MT2523 Series Reference Manual
E8
PSW
Control
registe
r1
PSWCTL1
Bit
7
6
5
4
3
00
2
Name
Type
Reset
Bit(s)
Name
1
RG_SWD
P_ENA
RW
0
0
RG_SWX
M_ENA
RW
0
Description
1
RG_SWDP_ENA
ECO: optional SWDP enable, enabled by RG_PSEQ_RSV1_LSB[0]
0
RG_SWXM_ENA
ECO: optional SWXM enable, enabled by RG_PSEQ_RSV1_LSB[0]
E9
VIO18
Control
registe
r0
VIO18CTL0
Bit
7
6
5
4
2
RG_OVR_VIO18_PM
OD
Name
Type
Reset
0
Bit(s)
Name
3:2
RG_OVR_VIO18_P
MOD
1
RG_VIO18_OCFB_E
N
0
RG_VIO18_EN
0
Type
Reset
6
5
4
3
0
Bit(s)
Name
3:2
RG_OVR_VSF_PMO
D
1
RG_VSF_OCFB_EN
0
RG_VSF_EN
RG_VIO1
8_EN
RW
0
10
2
RG_OVR_VSF_PMO
D
Name
0
VSF
Control
registe
r0
VSFCTL0
7
RW
1
RG_VIO1
8_OCFB
_EN
RW
0
Description
EA
Bit
3
10
RW
0
1
RG_VSF
_OCFB_
EN
RW
0
0
RG_VSF
_EN
RW
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 636 of 692
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MT2523 Series Reference Manual
EB
VIO28
Control
registe
r0
VIO28CTL0
Bit
7
6
5
4
Type
Reset
0
Bit(s)
Name
3:2
RG_OVR_VIO28_P
MOD
1
RG_VIO28_OCFB_E
N
0
RG_VIO28_EN
0
6
5
4
Name
Type
Reset
3
0
Name
3:2
RG_OVR_VMC_PM
OD
1
RG_VMC_OCFB_EN
0
RG_VMC_EN
2
RW
0
6
5
4
3
0
Bit(s)
Name
3:2
RG_OVR_VUSB_PM
OD
1
RG_VUSB_OCFB_E
N
0
RG_VUSB_EN
0
RG_VMC
_EN
RW
0
00
2
RG_OVR_VUSB_PM
OD
Type
Reset
1
RG_VMC
_OCFB_
EN
RW
0
VUSB
Control
registe
r0
VUSBCTL0
Name
RW
0
Description
ED
7
RG_VIO2
8_EN
00
RG_OVR_VMC_PMO
D
Bit(s)
0
VMC
Control
registe
r0
VMCCTL0
7
RW
1
RG_VIO2
8_OCFB
_EN
RW
0
Description
EC
Bit
2
RG_OVR_VIO28_PM
OD
Name
Bit
3
30
RW
0
1
RG_VUS
B_OCFB
_EN
RW
0
0
RG_VUS
B_EN
RW
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 637 of 692
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MT2523 Series Reference Manual
EF
VUSBL
DO0
VUSBLDO0
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
5
4
3:0
2
Description
RG_VUSB_CAL
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
7
6
5
1
RG_VUSB_CAL
RW
0
0
Name
0
0
VUSBL
DOBF0
VUSBLDOBF0
Bit(s)
3
0
F3
Bit
Name
Type
Reset
00
4
3
0
00
2
Name
Description
RG_VUSB_BUF_CA
L
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
© 2015 - 2018 Airoha Technology Corp.
1
RG_VUSB_BUF_CAL
RW
0
0
0
0
Page 638 of 692
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MT2523 Series Reference Manual
F5
VUSB
LDO
PSI
registe
r0
VUSBPSI0
Bit
7
Name
Type
Reset
6
5
4
RG_LP_VUSB_PMO
D
RW
0
0
Bit(s)
Name
6:5
RG_LP_VUSB_PMO
D
2:1
RG_HP_VUSB_PM
OD
3
7
6
5
RG_S1_VUSB_PMOD
Type
Reset
0
Bit(s)
Name
6:5
RG_S1_VUSB_PMO
D
4
RGS_S1_VUSB_ON
2:1
RG_S0_VUSB_PMO
D
0
RGS_S0_VUSB_ON
RW
0
4
RGS_S1_
VUSB_O
N
RO
0
3:0
7
00
3
2
1
0
RG_S0_VUSB_PMO
D
0
RW
0
RGS_S0_
VUSB_O
N
RO
0
VDIG1
8LDO0
VDIG18LDO0
Bit(s)
0
Description
F7
Bit
Name
Type
Reset
1
VUSB
LDO
PSI
registe
r1
VUSBPSI1
Name
2
RG_HP_VUSB_PMO
D
RW
0
0
Description
F6
Bit
00
6
5
4
3
0
00
2
Name
Description
RG_OVR_VDIG18_C
AL
VDIG18 calibration
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
© 2015 - 2018 Airoha Technology Corp.
1
RG_OVR_VDIG18_CAL
RW
0
0
0
0
Page 639 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
FB
VDIG1
8LDOB
F0
VDIG18LDOBF0
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
5
4
0
Description
RG_OVR_VDIG18_B
UF_CAL
VDIG18 buffer calibration
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
Bit
Name
Type
Reset
7
6
5
1
0
0
VCORE
LDO
registe
r0
VCLDO0
4:0
2
RG_OVR_VDIG18_BUF_CAL
RW
0
0
Name
FD
Bit(s)
3
00
4
0
3
00
2
1
0
RG_OVR_VC_LDO_CAL
RW
0
0
0
Name
Description
RG_OVR_VC_LDO_
CAL
VC LDO calibration
5'b00000: 0 mV
5'b00001: -5 mV
5'b00010: -10 mV
5'b00011: -15 mV
5'b00100: -20 mV
5'b00101: -25 mV
© 2015 - 2018 Airoha Technology Corp.
0
Page 640 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
Description
5'b00110: -30 mV
5'b00111: -35 mV
5'b01000: -40 mV
5'b01001: -45 mV
5'b01010: -50 mV
5'b01011: -55 mV
5'b01100: -60 mV
5'b01101: -65 mV
5'b01110: -70 mV
5'b01111: -75 mV
5'b10000: +80 mV
5'b10000: +75 mV
5'b10001: +70 mV
5'b10010: +65 mV
5'b10011: +60 mV
5'b10100: +55 mV
5'b10101: +50 mV
5'b10110: +45 mV
5'b10111: +40 mV
5'b11000: +35 mV
5'b11001: +30 mV
5'b11010: +25 mV
5'b11011: +20 mV
5'b11100: +15 mV
5'b11101: +10 mV
5'b11110: +5 mV
FE
VCORE
LDO
registe
r1
VCLDO1
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
5
4
3
1
0A
2
Name
Description
RG_OVR_VC_LDO_
VOSEL
VC LDO output voltage
4'b0000: 0.7V
4'b0001: 0.75 V
4'b0010: 0.8 V
4'b0011: 0.85 V
4'b0100: 0.9 V
4'b0101: 0.95 V
4'b0110: 1 V
4'b0111: 1.05 V
4'b1000: 1.1V
4'b1001: 1.15 V
4'b1010: 1.2 V
4'b1011: 1.25 V
4'b1100: 1.3 V
4'b1101: 1.3 V
4'b1110: 1.3 V
4'b1111: 1.3 V
© 2015 - 2018 Airoha Technology Corp.
1
RG_OVR_VC_LDO_VOSEL
RW
0
1
0
0
Page 641 of 692
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MT2523 Series Reference Manual
101
VCORE
LDO
buffer
registe
r0
VCLDOBF0
Bit
Name
Type
Reset
Bit(s)
4:0
7
6
5
4
0
1
RG_OVR_VC_LDO_
BUF_CAL
VC LDO buffer calibration
5'b00000: 0 mV
5'b00001: -5 mV
5'b00010: -10 mV
5'b00011: -15 mV
5'b00100: -20 mV
5'b00101: -25 mV
5'b00110: -30 mV
5'b00111: -35 mV
5'b01000: -40 mV
5'b01001: -45 mV
5'b01010: -50 mV
5'b01011: -55 mV
5'b01100: -60 mV
5'b01101: -65 mV
5'b01110: -70 mV
5'b01111: -75 mV
5'b10000: +80 mV
5'b10000: +75 mV
5'b10001: +70 mV
5'b10010: +65 mV
5'b10011: +60 mV
5'b10100: +55 mV
5'b10101: +50 mV
5'b10110: +45 mV
5'b10111: +40 mV
5'b11000: +35 mV
5'b11001: +30 mV
5'b11010: +25 mV
5'b11011: +20 mV
5'b11100: +15 mV
5'b11101: +10 mV
5'b11110: +5 mV
7
Name
Bit(s)
2
Description
6
5
4
Name
1
RW
0
0
C0
3
2
1
0
RG_HP_VC_LDO_P
MOD
RG_HP_VC_LDO_VOSEL
1
0
VCORE
LDO
PSI
registe
r0
VCLDOPSI0
Type
Reset
3
RG_OVR_VC_LDO_BUF_CAL
RW
0
0
0
Name
103
Bit
00
0
0
RW
0
RG_HP_
VC_LDO
_ON
RW
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 642 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
Description
7:4
RG_HP_VC_LDO_V
OSEL
4'b0000: 0.7V
4'b0001: 0.75 V
4'b0010: 0.8 V
4'b0011: 0.85 V
4'b0100: 0.9 V
4'b0101: 0.95 V
4'b0110: 1 V
4'b0111: 1.05 V
4'b1000: 1.1V
4'b1001: 1.15 V
4'b1010: 1.2 V
4'b1011: 1.25 V
4'b1100: 1.3 V
4'b1101: 1.3 V
4'b1110: 1.3 V
4'b1111: 1.3 V
2:1
RG_HP_VC_LDO_P
MOD
00: Normal mode
01: Lite mode
10: LP mode
11: ULP mode
0
RG_HP_VC_LDO_O
N
104
VCORE
LDO
PSI
registe
r1
VCLDOPSI1
Bit
Name
Type
Reset
7
6
5
4
0
Bit(s)
Name
4:0
RG_HP_VC_LDO_C
AL
Type
Reset
2
1
0
RG_HP_VC_LDO_CAL
RW
0
0
0
0
VCORE
LDO
PSI
registe
r2
VCLDOPSI2
7
Name
3
Description
105
Bit
00
6
5
4
3
0
RW
0
2
1
0
RG_LP_VC_LDO_PM
OD
RG_LP_VC_LDO_VOSEL
1
80
0
0
Bit(s)
Name
Description
7:4
RG_LP_VC_LDO_V
OSEL
4'b0000: 0.7V
4'b0001: 0.75 V
4'b0010: 0.8 V
4'b0011: 0.85 V
© 2015 - 2018 Airoha Technology Corp.
RW
0
RG_LP_
VC_LDO
_ON
RW
0
Page 643 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4'b0100: 0.9 V
4'b0101: 0.95 V
4'b0110: 1 V
4'b0111: 1.05 V
4'b1000: 1.1V
4'b1001: 1.15 V
4'b1010: 1.2 V
4'b1011: 1.25 V
4'b1100: 1.3 V
4'b1101: 1.3 V
4'b1110: 1.3 V
4'b1111: 1.3 V
2:1
RG_LP_VC_LDO_P
MOD
0
RG_LP_VC_LDO_O
N
106
VCORE
LDO
PSI
registe
r3
VCLDOPSI3
Bit
Name
Type
Reset
7
6
5
4
0
Bit(s)
Name
4:0
RG_LP_VC_LDO_C
AL
6
5
4
3
Name
Type
Reset
Bit(s)
Name
2:1
RG_S0_VC_LDO_P
MOD
2
1
0
RG_LP_VC_LDO_CAL
RW
0
0
0
0
VCORE
LDO
PSI
registe
r4
VCLDOPSI4
7
3
Description
107
Bit
00
00
2
1
RG_S0_VC_LDO_PM
OD
RW
0
0
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 644 of 692
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MT2523 Series Reference Manual
108
VCORE
LDO
PSI
registe
r5
VCLDOPSI5
Bit
7
Name
Type
Reset
Bit(s)
6
5
4
3
RG_S1_VC_LDO_VOSEL
0
0
RW
0
0
00
2
Name
Description
7:4
RG_S1_VC_LDO_V
OSEL
4'b0000: 0.7V
4'b0001: 0.75 V
4'b0010: 0.8 V
4'b0011: 0.85 V
4'b0100: 0.9 V
4'b0101: 0.95 V
4'b0110: 1 V
4'b0111: 1.05 V
4'b1000: 1.1V
4'b1001: 1.15 V
4'b1010: 1.2 V
4'b1011: 1.25 V
4'b1100: 1.3 V
4'b1101: 1.3 V
4'b1110: 1.3 V
4'b1111: 1.3 V
2:1
RG_S1_VC_LDO_P
MOD
10A
Bit
Name
Type
Reset
Bit(s)
3:0
6
5
0
VIO18L
DO0
VIO18LDO0
7
1
RG_S1_VC_LDO_PM
OD
RW
0
0
4
3
0
00
2
Name
Description
RG_VIO18_CAL
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
© 2015 - 2018 Airoha Technology Corp.
1
RG_VIO18_CAL
RW
0
0
0
0
Page 645 of 692
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MT2523 Series Reference Manual
10E
VIO18L
DOBF0
VIO18LDOBF0
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
5
4
0
Description
RG_VIO18_BUF_CA
L
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
7
Name
Type
Reset
6
5
RG_LP_VIO18_PMO
D
RW
0
0
Bit(s)
Name
6:5
RG_LP_VIO18_PMO
D
2:1
RG_HP_VIO18_PM
OD
4
Type
Reset
Bit(s)
Name
0
3
00
2
1
RG_HP_VIO18_PMO
D
RW
0
0
0
VIO18
LDO
PSI
registe
r1
VIO18PSI1
Name
0
Description
111
7
1
VIO18
LDO
PSI
registe
r0
VIO18PSI0
Bit
2
RG_VIO18_BUF_CAL
RW
0
0
Name
110
Bit
3
00
6
5
RG_S1_VIO18_PMO
D
RW
0
0
4
3
00
2
1
RG_S0_VIO18_PMO
D
RW
0
0
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 646 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
6:5
RG_S1_VIO18_PMO
D
2:1
RG_S0_VIO18_PMO
D
Description
113
VSFLD
O0
VSFLDO0
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
5
4
0
2
Description
RG_VSF_CAL
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
6
5
4
3
2
Type
Reset
1
0
0
00
Name
Bit(s)
0
VSFLD
O1
VSFLDO1
7
1
RG_VSF_CAL
RW
0
0
Name
114
Bit
3
00
Name
Description
RG_VSF_VOSEL_1
VSF output voltage select bit_1
2'b00: 1.86V
2'b01: 3 V
2'b10: 3.3 V
2b'11: null
RG_VSF_VOSEL_0
VSF output voltage select bit_0
2'b00: 1.86V
2'b01: 3 V
2'b10: 3.3 V
2b'11: null
© 2015 - 2018 Airoha Technology Corp.
1
RG_VSF
_VOSEL
_1
RW
0
0
RG_VSF
_VOSEL
_0
RW
0
Page 647 of 692
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MT2523 Series Reference Manual
117
VSFLD
OBF0
VSFLDOBF0
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
5
4
0
Description
RG_VSF_BUF_CAL
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
7
6
5
RG_LP_VSF_PMOD
RW
0
0
4
Name
0
0
3
00
2
1
RG_HP_VSF_PMOD
RW
0
0
0
Description
6:5
RG_LP_VSF_PMOD
2:1
RG_HP_VSF_PMOD
11A
VSF
LDO
PSI
registe
r1
VSFPSI1
Bit
1
VSF
LDO
PSI
registe
r0
VSFPSI0
Bit(s)
2
RG_VSF_BUF_CAL
RW
0
0
Name
119
Bit
Name
Type
Reset
3
00
7
6
5
Name
RG_S1_VSF_PMOD
Type
Reset
RW
0
Bit(s)
Name
6:5
RG_S1_VSF_PMOD
4
RGS_S1_VSF_ON
0
4
RGS_S1_
VSF_ON
RO
0
00
3
2
1
0
RG_S0_VSF_PMOD
0
RW
0
RGS_S0_
VSF_ON
RO
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 648 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
Description
2:1
RG_S0_VSF_PMOD
0
RGS_S0_VSF_ON
11C
SMPS
Control
Registe
r0
SMPSCTL0
Bit
Name
Type
Reset
Bit(s)
7
6
5
RG_VCORE_BUCK_S
CHG_TSTEP
0
RW
0
4
RG_VCO
RE_BUC
K_SCHG
_EN
RW
1
16
3
2
1
Name
Description
7:6
RG_VCORE_BUCK_
SCHG_TSTEP
VCORE DVS soft change time step
2'b00: 0.6us (default)
2'b01: 1.3us
2'b10: 2.6us
2'b11: 4.6us
4
RG_VCORE_BUCK_
SCHG_EN
VCORE DVS soft change enable
121
SMPS
Analog
Control
Registe
r3
SMPSANA3
Bit
7
6
5
Name
Type
Reset
4
00
3
RG_VOU
TDET_E
N
RW
0
2
1
0
RW
Name
Description
3
RG_VOUTDET_EN
VOUT tied to VBAT detection enable
0: disable
1: enable
RG_VCORE_VSLEE
P_SEL
sleep mode voltage selection
00: 0.7V
01: 0.75V
10: 0.6V
11: 0.65V
135
0
RG_VCORE_VSLEEP
_SEL
Bit(s)
2:1
0
0
VCORE
BUCK
registe
r 19
00
© 2015 - 2018 Airoha Technology Corp.
Page 649 of 692
VCBUCK19
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MT2523 Series Reference Manual
135
VCORE
BUCK
registe
r 19
VCBUCK19
Bit
7
6
5
4
3
00
2
Name
Type
Reset
Bit(s)
Name
Description
1
RGS_QI_VCORE_O
C_STATUS
OC status
13E
7
Name
Type
Reset
Bit(s)
6
5
4
RG_HP_VC_BUCK_VOVAL
1
1
RW
1
0
VCORE
BUCK
PSI
registe
r0
VCBUCKPSI0
Bit
1
RGS_QI_
VCORE_
OC_STAT
US
RO
0
3
E1
2
1
0
RG_HP_VC_BUCK_VOADJ
0
0
RW
0
0
RG_HP_
VC_BUC
K_ON
RW
1
Name
Description
7:4
RG_HP_VC_BUCK_
VOVAL
VCORE BUCK output voltage value for HP state
0000: 0.6v
0001: 0.6v + 50mV
0010: 0.6v + 50mV*2
0100: 0.6v + 50mv*4
0110: 0.6v + 50mv*6
1000: 0.6v + 50mv*8
1010: 0.6v + 50mv*10
1100: 0.6v + 50mv*12 = 1.2v
1110: 0.6v + 50mv*14
1111: 0.6v + 50mV*15 = 1.35v
3:1
RG_HP_VC_BUCK_
VOADJ
VCORE BUCK voltage adjust value for HP state (6.25mV/bit)
0
RG_HP_VC_BUCK_
ON
VCORE BUCK on/off control for HP state
0: off
1: on
13F
VCORE
BUCK
PSI
registe
r1
VCBUCKPSI1
Bit
Name
7
6
5
RG_LP_VC_BUCK_VOVAL
4
3
A1
2
1
0
RG_LP_
VC_BUC
RG_LP_VC_BUCK_VOADJ
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MT2523 Series Reference Manual
13F
Type
Reset
Bit(s)
VCORE
BUCK
PSI
registe
r1
VCBUCKPSI1
1
0
RW
1
0
0
A1
RW
0
K_ON
RW
1
0
Name
Description
7:4
RG_LP_VC_BUCK_
VOVAL
VCORE BUCK output voltage value for LP state
0000: 0.6v
0001: 0.6v + 50mV
0010: 0.6v + 50mV*2
0100: 0.6v + 50mv*4
0110: 0.6v + 50mv*6
1000: 0.6v + 50mv*8
1010: 0.6v + 50mv*10
1100: 0.6v + 50mv*12 = 1.2v
1110: 0.6v + 50mv*14
1111: 0.6v + 50mV*15 = 1.35v
3:1
RG_LP_VC_BUCK_
VOADJ
VCORE BUCK voltage adjust value for LP state (6.25mV/bit)
0
RG_LP_VC_BUCK_
ON
VCORE BUCK on/off control for LP state
0: off
1: on
140
Bit
Name
Type
Reset
Bit(s)
VCORE
BUCK
PSI
registe
r2
VCBUCKPSI2
7
0
6
5
RG_S1_VC_BUCK_VOVAL
RW
0
1
4
0
3
20
2
1
0
RG_S1_VC_BUCK_VOADJ
RW
0
0
0
Name
Description
7:4
RG_S1_VC_BUCK_
VOVAL
VCORE BUCK output voltage value for LP state
0000: 0.6v
0001: 0.6v + 50mV
0010: 0.6v + 50mV*2
0100: 0.6v + 50mv*4
0110: 0.6v + 50mv*6
1000: 0.6v + 50mv*8
1010: 0.6v + 50mv*10
1100: 0.6v + 50mv*12 = 1.2v
1110: 0.6v + 50mv*14
1111: 0.6v + 50mV*15 = 1.35v
3:1
RG_S1_VC_BUCK_
VOADJ
VCORE BUCK voltage adjust value for LP state (6.25mV/bit)
© 2015 - 2018 Airoha Technology Corp.
Page 651 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
200
AUXAD
C ADC
registe
r0
AUXADC_ADC0
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_CH0_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH0_L
AUXADC channel 0 output data bit [7:0]
201
AUXADC_ADC0_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_CH0
RO
0
6
5
4
AUXAD
C ADC
registe
r 0_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_CH0_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH0
AUXADC channel 0 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_CH0_H
AUXADC channel 0 output data bit [14:8]
202
AUXAD
C ADC
registe
r1
AUXADC_ADC1
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_CH1_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH1_L
AUXADC channel 1 output data bit [7:0]
203
Bit
Name
AUXADC_ADC1_H
7
AUXADC
6
5
4
AUXAD
C ADC
registe
r 1_H
3
00
2
AUXADC_ADC_OUT_CH1_H
© 2015 - 2018 Airoha Technology Corp.
1
0
Page 652 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
203
AUXADC_ADC1_H
_ADC_R
DY_CH1
RO
0
Type
Reset
0
0
0
AUXAD
C ADC
registe
r 1_H
RO
0
00
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH1
AUXADC channel 1 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_CH1_H
AUXADC channel 1 output data bit [14:8]
204
AUXAD
C ADC
registe
r2
AUXADC_ADC2
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_CH2_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH2_L
AUXADC channel 2 output data bit [7:0]
205
AUXADC_ADC2_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_CH2
RO
0
6
5
0
4
AUXAD
C ADC
registe
r 2_H
3
00
2
1
0
AUXADC_ADC_OUT_CH2_H
0
0
RO
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH2
AUXADC channel 2 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_CH2_H
AUXADC channel 2 output data bit [11:8]
© 2015 - 2018 Airoha Technology Corp.
0
Page 653 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
206
AUXAD
C ADC
registe
r3
AUXADC_ADC3
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_CH3_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH3_L
AUXADC channel 3 output data bit [7:0]
207
AUXADC_ADC3_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_CH3
RO
0
6
5
4
AUXAD
C ADC
registe
r 3_H
3
00
2
1
AUXADC_ADC_OUT_CH3_H
0
0
RO
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH3
AUXADC channel 3 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_CH3_H
AUXADC channel 3 output data bit [11:8]
208
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_CH4_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH4_L
AUXADC channel 4 output data bit [7:0]
209
Bit
Name
AUXADC_ADC4_H
7
AUXADC
6
5
0
AUXAD
C ADC
registe
r4
AUXADC_ADC4
Bit
Name
Type
Reset
0
4
AUXAD
C ADC
registe
r 4_H
3
00
2
1
AUXADC_ADC_OUT_CH4_H
© 2015 - 2018 Airoha Technology Corp.
0
Page 654 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
209
AUXADC_ADC4_H
_ADC_R
DY_CH4
RO
0
Type
Reset
AUXAD
C ADC
registe
r 4_H
0
00
0
RO
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH4
AUXADC channel 4 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_CH4_H
AUXADC channel 4 output data bit [11:8]
21A
AUXAD
C ADC
registe
r 13
AUXADC_ADC13
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_THR_HW_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_THR_HW_L
AUXADC channel 13 output data bit [7:0]
21B
AUXADC_ADC13_H
Bit
7
Name
Type
Reset
Bit(s)
AUXADC
_ADC_R
DY_THR
_HW
RO
0
6
5
0
4
AUXAD
C ADC
registe
r 13_H
3
00
2
1
0
AUXADC_ADC_OUT_THR_HW_H
0
0
RO
0
0
Name
Description
7
AUXADC_ADC_RDY
_THR_HW
AUXADC channel 13 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_THR_HW_H
AUXADC channel 13 output data bit [11:8]
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
21C
AUXAD
C ADC
registe
r 14
AUXADC_ADC14
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_LBAT_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_LBAT_L
AUXADC channel 14 output data bit [7:0]
21D
AUXADC_ADC14_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_LBA
T
RO
0
6
5
4
AUXAD
C ADC
registe
r 14_H
3
00
2
1
0
AUXADC_ADC_OUT_LBAT_H
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_LBAT
AUXADC channel 14 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_LBAT_H
AUXADC channel 14 output data bit [11:8]
21E
AUXAD
C ADC
registe
r 15
AUXADC_ADC15
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_LBAT2_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_LBAT2_L
AUXADC channel 15 output data bit [7:0]
21F
AUXADC_ADC15_H
Bit
7
6
5
4
AUXAD
C ADC
registe
r 15_H
3
© 2015 - 2018 Airoha Technology Corp.
00
2
1
0
Page 656 of 692
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MT2523 Series Reference Manual
21F
AUXADC_ADC15_H
Name
Type
Reset
AUXADC
_ADC_R
DY_LBA
T2
RO
0
AUXAD
C ADC
registe
r 15_H
00
AUXADC_ADC_OUT_LBAT2_H
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_LBAT2
AUXADC channel 15 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_LBAT2_H
AUXADC channel 15 output data bit [11:8]
226
AUXAD
C ADC
registe
r 19
AUXADC_ADC19
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_CH4_BY_MD_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH4_BY_MD_L
AUXADC channel 19 output data bit [7:0]
227
AUXADC_ADC19_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_CH4
_BY_MD
RO
0
6
5
4
AUXAD
C ADC
registe
r 19_H
3
00
2
1
0
AUXADC_ADC_OUT_CH4_BY_MD_H
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH4_BY_MD
AUXADC channel 19 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_CH4_BY_MD_H
AUXADC channel 19 output data bit [11:8]
© 2015 - 2018 Airoha Technology Corp.
Page 657 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
228
AUXAD
C ADC
registe
r 20
AUXADC_ADC20
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_WAKEUP_PCHR_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_WAKEUP_PCHR_L
AUXADC channel 20 output data bit [7:0]
229
AUXADC_ADC20_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_WAK
EUP_PC
HR
RO
0
6
5
4
AUXAD
C ADC
registe
r 20_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_WAKEUP_PCHR_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_WAKEUP_PCHR
AUXADC channel 20 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_WAKEUP_PCHR_
H
AUXADC channel 20 output data bit [14:8]
22A
AUXAD
C ADC
registe
r 21
AUXADC_ADC21
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_WAKEUP_SWCHR_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_WAKEUP_SWCHR
_L
AUXADC channel 21 output data bit [7:0]
© 2015 - 2018 Airoha Technology Corp.
Page 658 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
22B
AUXADC_ADC21_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_WAK
EUP_SW
CHR
RO
0
6
5
4
AUXAD
C ADC
registe
r 21_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_WAKEUP_SWCHR_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_WAKEUP_SWCHR
AUXADC channel 21 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_WAKEUP_SWCHR
_H
AUXADC channel 21 output data bit [14:8]
22C
AUXAD
C ADC
registe
r 22
AUXADC_ADC22
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_CH0_BY_MD_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH0_BY_MD_L
AUXADC channel 22 output data bit [7:0]
22D
AUXADC_ADC22_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_CH0
_BY_MD
RO
0
6
5
4
AUXAD
C ADC
registe
r 22_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_CH0_BY_MD_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH0_BY_MD
AUXADC channel 22 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_CH0_BY_MD_H
AUXADC channel 22 output data bit [14:8]
© 2015 - 2018 Airoha Technology Corp.
Page 659 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
22E
AUXAD
C ADC
registe
r 23
AUXADC_ADC23
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_CH0_BY_AP_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH0_BY_AP_L
AUXADC channel 23 output data bit [7:0]
22F
AUXADC_ADC23_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_CH0
_BY_AP
RO
0
6
5
4
AUXAD
C ADC
registe
r 23_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_CH0_BY_AP_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH0_BY_AP
AUXADC channel 23 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_CH0_BY_AP_H
AUXADC channel 23 output data bit [14:8]
230
AUXAD
C ADC
registe
r 24
AUXADC_ADC24
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_CH1_BY_MD_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH1_BY_MD_L
AUXADC channel 24 output data bit [7:0]
231
AUXAD
C ADC
registe
r 24_H
00
© 2015 - 2018 Airoha Technology Corp.
Page 660 of 692
AUXADC_ADC24_H
This document contains information that is proprietary to Airoha Technology Corp. (“Airoha”) and/or its licensor(s).
Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
231
AUXADC_ADC24_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_CH1
_BY_MD
RO
0
6
5
4
AUXAD
C ADC
registe
r 24_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_CH1_BY_MD_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH1_BY_MD
AUXADC channel 24 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_CH1_BY_MD_H
AUXADC channel 24 output data bit [14:8]
232
AUXAD
C ADC
registe
r 25
AUXADC_ADC25
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_CH1_BY_AP_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_CH1_BY_AP_L
AUXADC channel 25 output data bit [7:0]
233
AUXADC_ADC25_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_CH1
_BY_AP
RO
0
6
5
4
AUXAD
C ADC
registe
r 25_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_CH1_BY_AP_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_CH1_BY_AP
AUXADC channel 25 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_CH1_BY_AP_H
AUXADC channel 25 output data bit [14:8]
© 2015 - 2018 Airoha Technology Corp.
Page 661 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
234
AUXAD
C ADC
registe
r 26
AUXADC_ADC26
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_VISMPS0_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_VISMPS0_L
AUXADC channel 26 output data bit [7:0]
235
AUXADC_ADC26_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_VIS
MPS0
RO
0
6
5
4
AUXAD
C ADC
registe
r 26_H
3
00
2
1
0
AUXADC_ADC_OUT_VISMPS0_H
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_VISMPS0
AUXADC channel 26 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_VISMPS0_H
AUXADC channel 26 output data bit [11:8]
236
AUXAD
C ADC
registe
r 27
AUXADC_ADC27
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_FGADC1_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_FGADC1_L
AUXADC channel 27 output data bit [7:0]
237
AUXADC_ADC27_H
Bit
7
6
5
4
AUXAD
C ADC
registe
r 27_H
3
© 2015 - 2018 Airoha Technology Corp.
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2
1
0
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MT2523 Series Reference Manual
237
AUXADC_ADC27_H
Name
Type
Reset
AUXADC
_ADC_R
DY_FGA
DC1
RO
0
AUXAD
C ADC
registe
r 27_H
00
AUXADC_ADC_OUT_FGADC1_H
0
0
0
RO
0
0
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_FGADC1
AUXADC channel 27 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_FGADC1_H
AUXADC channel 27 output data bit [14:8]
238
AUXAD
C ADC
registe
r 28
AUXADC_ADC28
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_FGADC2_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_FGADC2_L
AUXADC channel 28 output data bit [7:0]
239
AUXADC_ADC28_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_FGA
DC2
RO
0
6
5
4
AUXAD
C ADC
registe
r 28_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_FGADC2_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_FGADC2
AUXADC channel 28 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_FGADC2_H
AUXADC channel 28 output data bit [14:8]
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
23A
AUXAD
C ADC
registe
r 29
AUXADC_ADC29
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_IMP_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_IMP_L
AUXADC channel 29 output data bit [7:0]
23B
AUXADC_ADC29_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_IMP
RO
0
6
5
4
AUXAD
C ADC
registe
r 29_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_IMP_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_IMP
AUXADC channel 29 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_IMP_H
AUXADC channel 29 output data bit [14:8]
23C
AUXAD
C ADC
registe
r 30
AUXADC_ADC30
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_IMP_AVG_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_IMP_AVG_L
AUXADC channel 30 output data bit [7:0]
23D
Bit
Name
AUXADC_ADC30_H
7
AUXADC
6
5
4
AUXAD
C1 ADC
registe
r 0_H
3
00
2
AUXADC_ADC_OUT_IMP_AVG_H
© 2015 - 2018 Airoha Technology Corp.
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0
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MT2523 Series Reference Manual
23D
AUXADC_ADC30_H
_ADC_R
DY_IMP
_AVG
RO
0
Type
Reset
Bit(s)
0
0
0
AUXAD
C1 ADC
registe
r 0_H
RO
0
00
0
0
0
Name
Description
7
AUXADC_ADC_RDY
_IMP_AVG
AUXADC channel 30 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_IMP_AVG_H
AUXADC channel 30 output data bit [14:8]
23E
AUXAD
C ADC
registe
r 31
AUXADC_ADC31
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_RAW_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_RAW_L
AUXADC channel 31 output data bit [7:0]
23F
AUXADC_ADC31_H
Bit
Name
Type
Reset
7
6
5
0
0
4
AUXAD
C1 ADC
registe
r 1_H
3
00
2
AUXADC_ADC_OUT_RAW_H
RO
0
0
0
1
0
0
0
Bit(s)
Name
Description
6:0
AUXADC_ADC_OUT
_RAW_H
AUXADC channel 31 output data bit [14:8]
240
Bit
Name
Type
AUXAD
C ADC
registe
r 32
AUXADC_ADC32
7
6
5
4
3
AUXADC_ADC_OUT_MDRT_L
RO
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2
1
0
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MT2523 Series Reference Manual
240
AUXAD
C ADC
registe
r 32
AUXADC_ADC32
Reset
0
0
0
0
0
00
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_MDRT_L
AUXADC channel 32 output data bit [7:0]
241
AUXADC_ADC32_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_MDR
T
RO
0
6
5
4
0
AUXAD
C1 ADC
registe
r 2_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_MDRT_H
0
0
0
RO
0
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_MDRT
AUXADC channel 32 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
6:0
AUXADC_ADC_OUT
_MDRT_H
AUXADC channel 32 output data bit [14:8]
242
AUXAD
C ADC
registe
r 33
AUXADC_ADC33
Bit
Name
Type
Reset
7
6
5
0
0
0
4
3
AUXADC_ADC_OUT_JEITA_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_JEITA_L
AUXADC output data
243
AUXADC_ADC33_H
Bit
Name
7
AUXADC
_ADC_R
DY_JEIT
6
5
4
AUXAD
C1 ADC
registe
r 3_H
3
00
2
1
0
AUXADC_ADC_OUT_JEITA_H
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
243
AUXADC_ADC33_H
A
RO
0
Type
Reset
AUXAD
C1 ADC
registe
r 3_H
0
00
0
RO
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_JEITA
AUXADC output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_JEITA_H
AUXADC output data
244
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_DCXO_BY_GPS_L
RO
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_DCXO_BY_GPS_L
AUXADC channel 4 output data
245
AUXADC_ADC34_H
Bit
7
Name
Type
Reset
Bit(s)
AUXADC
_ADC_R
DY_DCX
O_BY_G
PS
RO
0
6
5
0
AUXAD
C ADC
registe
r 34
AUXADC_ADC34
Bit
Name
Type
Reset
0
4
1
0
0
0
AUXAD
C1 ADC
registe
r 4_H
3
00
2
1
0
AUXADC_ADC_OUT_DCXO_BY_GPS_H
0
0
RO
0
Name
Description
7
AUXADC_ADC_RDY
_DCXO_BY_GPS
AUXADC channel 4 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_DCXO_BY_GPS_H
AUXADC channel 4 output data
© 2015 - 2018 Airoha Technology Corp.
0
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MT2523 Series Reference Manual
246
AUXAD
C ADC
registe
r 35
AUXADC_ADC35
Bit
Name
Type
Reset
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_DCXO_BY_MD_L
RO
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_DCXO_BY_MD_L
AUXADC channel 4 output data
247
AUXADC_ADC35_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_DCX
O_BY_M
D
RO
0
6
5
4
1
0
0
0
AUXAD
C ADC
registe
r 33_H
3
00
2
1
AUXADC_ADC_OUT_DCXO_BY_MD_H
0
0
RO
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_DCXO_BY_MD
AUXADC channel 4 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_DCXO_BY_MD_H
AUXADC channel 4 output data
248
7
6
0
0
5
0
AUXAD
C ADC
registe
r 36
AUXADC_ADC36
Bit
Name
Type
Reset
0
4
3
00
2
AUXADC_ADC_OUT_DCXO_BY_AP_L
RO
0
0
0
0
1
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_DCXO_BY_AP_L
AUXADC channel 4 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
249
AUXADC_ADC36_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_DCX
O_BY_A
P
RO
0
6
5
4
AUXAD
C ADC
registe
r _H
3
00
2
1
AUXADC_ADC_OUT_DCXO_BY_AP_H
0
0
RO
0
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_DCXO_BY_AP
AUXADC channel 4 output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_DCXO_BY_AP_H
AUXADC channel 4 output data
24A
7
6
0
0
5
4
3
00
2
AUXADC_ADC_OUT_DCXO_MDRT_L
RO
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_OUT
_DCXO_MDRT_L
AUXADC output data
24B
AUXADC_ADC37_H
Bit
7
Name
Type
Reset
AUXADC
_ADC_R
DY_DCX
O_MDRT
RO
0
6
5
0
AUXAD
C ADC
registe
r 37
AUXADC_ADC37
Bit
Name
Type
Reset
0
4
1
0
0
0
AUXAD
C1 ADC
registe
r _H
3
00
2
1
0
AUXADC_ADC_OUT_DCXO_MDRT_H
0
0
RO
Bit(s)
Name
Description
7
AUXADC_ADC_RDY
_DCXO_MDRT
AUXADC output data ready
0: AUXADC data proceeding
1: AUXADC data ready
3:0
AUXADC_ADC_OUT
_DCXO_MDRT_H
AUXADC output data
© 2015 - 2018 Airoha Technology Corp.
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0
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MT2523 Series Reference Manual
24C
AUXAD
C ADC
registe
r 34_H
AUXADC_ADC38
Bit
Name
Type
Reset
7
6
5
0
0
0
Bit(s)
Name
7:0
AUXADC_ADC_OUT
_NAG_L
4
AUXADC_ADC38_H
7
Name
Type
Reset
6
AUXADC
_ADC_R
DY_NAG
RO
0
1
0
0
0
0
5
4
AUXAD
C1 ADC
registe
r 34_H
3
00
2
1
0
0
0
AUXADC_ADC_OUT_NAG_H
0
Bit(s)
Name
7
AUXADC_ADC_RDY
_NAG
6:0
AUXADC_ADC_OUT
_NAG_H
0
0
RO
0
0
Description
24E
AUXAD
C_STA
0
AUXADC_STA0
Bit
Name
Type
Reset
2
Description
24D
Bit
3
AUXADC_ADC_OUT_NAG_L
RO
0
0
00
7
6
5
0
0
0
4
3
AUXADC_ADC_BUSY_IN_L
RO
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_ADC_BUS
Y_IN_L
AUXADC ADC BUSY STATUS_L, bit[7] = CH7 ~ bit[0] = CH0
1: BUSY
0: IDLE
24F
AUXADC_STA0_H
Bit
Name
7
AUXADC
_ADC_B
USY_IN_
WAKEUP
6
AUXADC
_ADC_B
USY_IN_
VISMPS0
5
AUXADC
_ADC_B
USY_IN_
LBAT2
4
AUXADC
_ADC_B
USY_IN_
LBAT
AUXAD
C_STA
0_H
3
00
2
1
0
AUXADC_ADC_BUSY_IN_H
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
24F
AUXADC_STA0_H
Type
Reset
Bit(s)
RO
0
RO
0
RO
0
RO
0
AUXAD
C_STA
0_H
00
0
0
RO
0
0
Name
Description
7
AUXADC_ADC_BUS
Y_IN_WAKEUP
ADC busy status
1: BUSY
0: IDLE
6
AUXADC_ADC_BUS
Y_IN_VISMPS0
ADC busy status
1: BUSY
0: IDLE
5
AUXADC_ADC_BUS
Y_IN_LBAT2
ADC busy status
1: BUSY
0: IDLE
4
AUXADC_ADC_BUS
Y_IN_LBAT
ADC busy status
1: BUSY
0: IDLE
3:0
AUXADC_ADC_BUS
Y_IN_H
AUXADC ADC BUSY STATUS_H, bit[3] = CH11 ~ bit[0] = CH8
1: BUSY
0: IDLE
250
AUXAD
C_STA1
AUXADC_STA1
Bit
7
6
5
4
Name
AUXADC
_ADC_B
USY_IN_
SHARE
AUXADC
_ADC_B
USY_IN_
MDRT
AUXADC
_ADC_B
USY_IN_
JEITA
AUXADC
_ADC_B
USY_IN_
NAG
Type
Reset
RO
0
RO
0
RO
0
RO
0
3
AUXADC
_ADC_B
USY_IN_
DCXO_G
PS
RO
0
00
2
AUXADC
_ADC_B
USY_IN_
DCXO_G
PS_MD
RO
0
Bit(s)
Name
Description
7
AUXADC_ADC_BUS
Y_IN_SHARE
ADC busy status
1: BUSY
0: IDLE
6
AUXADC_ADC_BUS
Y_IN_MDRT
ADC busy status
1: BUSY
0: IDLE
5
AUXADC_ADC_BUS
Y_IN_JEITA
ADC busy status
1: BUSY
0: IDLE
4
AUXADC_ADC_BUS
Y_IN_NAG
ADC busy status
1: BUSY
0: IDLE
3
AUXADC_ADC_BUS
Y_IN_DCXO_GPS
ADC busy status
1: BUSY
0: IDLE
2
AUXADC_ADC_BUS
Y_IN_DCXO_GPS_
MD
ADC busy status
1: BUSY
0: IDLE
© 2015 - 2018 Airoha Technology Corp.
1
AUXADC
_ADC_B
USY_IN_
DCXO_G
PS_AP
RO
0
0
AUXADC
_ADC_B
USY_IN_
DCXO_M
DRT
RO
0
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MT2523 Series Reference Manual
Bit(s)
Name
Description
1
AUXADC_ADC_BUS
Y_IN_DCXO_GPS_
AP
ADC busy status
1: BUSY
0: IDLE
0
AUXADC_ADC_BUS
Y_IN_DCXO_MDRT
ADC busy status
1: BUSY
0: IDLE
251
AUXAD
C_STA1
_H
AUXADC_STA1_H
Bit
7
Name
AUXADC
_ADC_B
USY_IN_
THR_MD
Type
Reset
RO
0
6
AUXADC
_ADC_B
USY_IN_
THR_H
W
RO
0
5
4
00
3
2
1
0
AUXADC
_ADC_B
USY_IN_
FGADC2
AUXADC
_ADC_B
USY_IN_
FGADC1
AUXADC
_ADC_B
USY_IN_
IMP
RO
0
RO
0
RO
0
Bit(s)
Name
Description
7
AUXADC_ADC_BUS
Y_IN_THR_MD
ADC busy status
1: BUSY
0: IDLE
6
AUXADC_ADC_BUS
Y_IN_THR_HW
ADC busy status
1: BUSY
0: IDLE
2
AUXADC_ADC_BUS
Y_IN_FGADC2
ADC busy status
1: BUSY
0: IDLE
1
AUXADC_ADC_BUS
Y_IN_FGADC1
ADC busy status
1: BUSY
0: IDLE
0
AUXADC_ADC_BUS
Y_IN_IMP
ADC busy status
1: BUSY
0: IDLE
2BE
Bit
Name
Type
Reset
AUXADC_LBAT2_4
7
6
5
0
0
0
4
AUXAD
C_LBA
T2_4
3
AUXADC_LBAT2_VOLT_MAX
RW
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
AUXADC_LBAT2_V
OLT_MAX
LBAT2 detection voltage setting
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
2BF
Bit
Name
Type
Reset
AUXADC_LBAT2_4_H
7
6
5
4
AUXAD
C_LBA
T2_4_
H
3
0
80
2
Bit(s)
Name
Description
3:0
AUXADC_LBAT2_V
OLT_MAXa
LBAT2 detection voltage setting
2C0
Bit
Name
Type
Reset
AUXADC_LBAT2_5
7
6
5
0
0
0
4
3
AUXADC_LBAT2_VOLT_MIN
RW
0
0
00
2
1
0
0
0
0
Name
Description
7:0
AUXADC_LBAT2_V
OLT_MIN
LBAT2 detection voltage setting
Bit
Name
Type
Reset
AUXADC_LBAT2_5_H
7
6
5
4
AUXAD
C_LBA
T2_5_
H
3
0
80
2
Name
Description
3:0
AUXADC_LBAT2_V
OLT_MINa
LBAT2 detection voltage setting
Bit
Name
Type
Reset
6
5
4
3
0
Bit(s)
Name
3:0
RG_VBT_CAL
0
0
VBT
LDO
registe
r0
VBTLDO0
7
1
AUXADC_LBAT2_VOLT_MINa
RW
0
0
Bit(s)
2EF
0
AUXAD
C_LBA
T2_5
Bit(s)
2C1
1
AUXADC_LBAT2_VOLT_MAXa
RW
0
0
0
00
2
1
0
RG_VBT_CAL
RW
0
0
0
Description
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
2F3
VBT
LDO
buffer
registe
r0
VBTLDOBF0
Bit
Name
Type
Reset
7
6
5
4
0
Bit(s)
Name
3:0
RG_VBT_BUF_CAL
6
5
RG_LP_VBT_PMOD
RW
0
0
Bit(s)
Name
6:5
RG_LP_VBT_PMOD
2:1
RG_HP_VBT_PMO
D
0
0
4
3
00
2
1
RG_HP_VBT_PMOD
RW
0
0
0
Description
2F6
VBTP
LDO
PSI
registe
r1
VBTPSI1
Bit
1
VBTP
LDO
PSI
registe
r0
VBTPSI0
7
2
RG_VBT_BUF_CAL
RW
0
0
Description
2F5
Bit
Name
Type
Reset
3
00
7
6
5
Name
RG_S1_VBT_PMOD
Type
Reset
RW
0
Bit(s)
Name
6:5
RG_S1_VBT_PMOD
4
RGS_S1_VBT_ON
2:1
RG_S0_VBT_PMOD
0
RGS_S0_VBT_ON
0
4
RGS_S1_
VBT_ON
RO
0
00
3
2
1
0
RG_S0_VBT_PMOD
0
RW
0
RGS_S0_
VBT_ON
RO
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 674 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
2F8
VA
LDO
registe
r0
VALDO0
Bit
Name
Type
Reset
7
6
5
4
Name
3:0
RG_VA_CAL
7
6
5
4
Name
3:0
RG_VA_BUF_CAL
6
5
RG_LP_VA_PMOD
RW
0
0
Bit(s)
Name
6:5
RG_LP_VA_PMOD
2:1
RG_HP_VA_PMOD
4
2
1
RG_VA_BUF_CAL
RW
0
0
0
0
3
00
2
1
RG_HP_VA_PMOD
RW
0
0
0
VA
LDO
PSI
registe
r1
VAPSI1
Type
Reset
00
Description
2FF
7
0
VA
LDO
PSI
registe
r0
VAPSI0
7
0
Description
2FE
Name
3
0
Bit(s)
1
RG_VA_CAL
RW
0
0
VA
LDO
buffer
registe
r0
VALDOBF0
Bit
2
Description
2FC
Bit
Name
Type
Reset
3
0
Bit(s)
Bit
Name
Type
Reset
00
6
5
RG_S1_VA_PMOD
0
RW
0
4
RGS_S1_
VA_ON
RO
0
3
© 2015 - 2018 Airoha Technology Corp.
00
2
1
0
RG_S0_VA_PMOD
0
RW
0
RGS_S0_
VA_ON
RO
0
Page 675 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
6:5
RG_S1_VA_PMOD
4
RGS_S1_VA_ON
2:1
RG_S0_VA_PMOD
0
RGS_S0_VA_ON
Description
300
VCAM
A
Control
registe
r0
VCAMACTL0
Bit
7
6
5
4
Type
Reset
0
Bit(s)
Name
3:2
RG_OVR_VCAMA_P
MOD
1
RG_VCAMA_OCFB_
EN
0
RG_VCAMA_EN
6
Name
3:0
RG_VCAMA_CAL
2:0
4
RW
0
3
00
2
1
RG_VCAMA_CAL
RW
0
0
0
0
VCAM
A LDO
registe
r1
VCAMALDO1
7
RG_VCA
MA_EN
Description
303
Bit(s)
5
0
Bit(s)
0
0
VCAM
ALDO0
VCAMALDO0
7
RW
1
RG_VCA
MA_OCF
B_EN
RW
0
Description
302
Bit
Name
Type
Reset
2
RG_OVR_VCAMA_P
MOD
Name
Bit
Name
Type
Reset
3
00
6
5
4
3
Name
Description
RG_VCAMA_VOSEL
3'b000: 1.5 V
3'b001: 1.8 V
3'b010: 2.5 V
3'b011: 2.8 V
© 2015 - 2018 Airoha Technology Corp.
03
2
1
0
RG_VCAMA_VOSEL
RW
0
1
1
Page 676 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
Description
3'b100: Reserved
3'b101: Reserved
3'b110: Reserved
3'b111: Reserved
306
VCAM
A LDO
buffer
registe
r0
VCAMALDOBF0
Bit
7
Name
Type
Reset
6
5
4
RG_VCAMA_COIN_SS_TRIM_BI
AS
RW
0
0
0
Bit(s)
Name
6:4
RG_VCAMA_COIN_
SS_TRIM_BIAS
3:0
RG_VCAMA_BUF_C
AL
0
6
5
4
3
Type
Reset
Name
2
RG_SWMP_EN
1
RG_SWDP_EN
0
RG_SWXM_EN
Name
Type
Reset
Bit(s)
Name
0
RW
0
0
00
2
RG_SW
MP_EN
RW
0
1
RG_SWD
P_EN
RW
0
0
RG_SWX
M_EN
RW
0
SWIO1
8 LDO
PSI
registe
r
SWIO18PSI
7
0
Description
30F
Bit
1
RG_VCAMA_BUF_CAL
Name
Bit(s)
2
PSW
Control
registe
r0
PSWCTL0
7
3
Description
30A
Bit
00
6
5
4
3
RGS_S1_
SWDP_O
N
RO
0
00
2
RGS_S0_
SWDP_O
N
RO
0
1
RGS_S1_
SWXM_
ON
RO
0
0
RGS_S0_
SWXM_
ON
RO
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 677 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
3
RGS_S1_SWDP_ON
2
RGS_S0_SWDP_ON
1
RGS_S1_SWXM_ON
0
RGS_S0_SWXM_O
N
Description
313
Bit
Name
Type
Reset
Bit(s)
3:0
7
6
Bit(s)
3:0
5
4
3
0
00
2
Description
RG_VIO28_CAL_E1
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
6
5
0
0
VIO28
LDOBF
0
VIO28LDOBF0
7
1
RG_VIO28_CAL_E1
RW
0
0
Name
317
Bit
Name
Type
Reset
VIO28
LDO0
VIO28LDO0
4
3
0
00
2
Name
Description
RG_VIO28_BUF_CA
L_E1
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
© 2015 - 2018 Airoha Technology Corp.
1
RG_VIO28_BUF_CAL_E1
RW
0
0
0
0
Page 678 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4'b1110: +40 mV
4'b1111: +20 mV
319
VIO28
LDO
PSI
registe
r0
VIO28PSI0
Bit
7
Name
Type
Reset
6
5
RG_LP_VIO28_PMO
D_E1
RW
0
0
Bit(s)
Name
6:5
RG_LP_VIO28_PM
OD_E1
2:1
RG_HP_VIO28_PM
OD_E1
4
7
6
0
Bit(s)
Name
6:5
RG_S1_VIO28_PMO
D_E1
4
RGS_S1_VIO28_ON
_E1
2:1
RG_S0_VIO28_PM
OD_E1
0
RGS_S0_VIO28_ON
_E1
RW
0
4
RGS_S1_
VIO28_O
N_E1
RO
0
00
3
2
0
RG_S0_VIO28_PMO
D_E1
0
6
5
4
3
0
Name
1
RW
0
RGS_S0_
VIO28_O
N_E1
RO
0
VMCL
DO0
VMCLDO0
7
0
Description
31C
Bit(s)
5
RG_S1_VIO28_PMO
D_E1
Type
Reset
Bit
Name
Type
Reset
1
VIO28
LDO
PSI
registe
r1
VIO28PSI1
Name
2
RG_HP_VIO28_PMO
D_E1
RW
0
0
Description
31A
Bit
3
00
00
2
1
0
RG_VMC_CAL
RW
0
0
0
Description
© 2015 - 2018 Airoha Technology Corp.
Page 679 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
3:0
RG_VMC_CAL
Description
31D
VMCL
DO1
VMCLDO1
Bit
Name
Type
Reset
7
6
5
4
02
3
2
Bit(s)
Name
Description
1:0
RG_VMC_VOSEL
2'b00: 1.8V
2'b01: 2.8V
2'b10: 3V
2b'11: 3.3V
320
7
6
5
4
Name
3:0
RG_VMC_BUF_CAL
6
5
RG_LP_VMC_PMOD
RW
0
0
Bit(s)
Name
6:5
RG_LP_VMC_PMO
D
2:1
RG_HP_VMC_PMO
D
4
0
0
3
00
2
1
RG_HP_VMC_PMOD
RW
0
0
0
VMC
LDO
PSI
registe
r1
VMCPSI1
7
1
Description
323
Bit
2
RG_VMC_BUF_CAL
RW
0
0
VMC
LDO
PSI
registe
r0
VMCPSI0
7
00
Description
322
Bit
Name
Type
Reset
3
0
Bit(s)
0
VMCL
DOBF0
VMCLDOBF0
Bit
Name
Type
Reset
1
RG_VMC_VOSEL
RW
1
0
6
5
4
3
© 2015 - 2018 Airoha Technology Corp.
00
2
1
0
Page 680 of 692
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MT2523 Series Reference Manual
323
VMC
LDO
PSI
registe
r1
VMCPSI1
Name
RGS_S1_
VMC_ON
RO
0
RG_S1_VMC_PMOD
Type
Reset
0
Bit(s)
Name
6:5
RG_S1_VMC_PMOD
4
RGS_S1_VMC_ON
2:1
RG_S0_VMC_PMO
D
0
RGS_S0_VMC_ON
RW
0
6
Name
5
4
RG_VIBR_STBTD
Type
Reset
Bit(s)
0
RW
0
RW
0
00
3
2
RG_OVR_VIBR_PMO
D
0
RW
0
Name
Description
5:4
RG_VIBR_STBTD
00: 240us (Li-ion) / 1.6ms (coin)
01: 2.4ms (Li-ion) / 15 ms (coin)
10: 90 us (Li-ion) / 1.2 ms (coin)
11: 3 ms (Li-ion) / 17 ms (coin)
3:2
RG_OVR_VIBR_PM
OD
1
RG_VIBR_OCFB_E
N
0
RG_VIBR_EN
326
Bit
Name
Type
Reset
Bit(s)
3:0
6
5
1
RG_VIB
R_OCFB
_EN
RW
0
0
RG_VIB
R_EN
RW
0
VIBRL
DO0
VIBRLDO0
7
0
RGS_S0_
VMC_ON
RO
0
VIBR
Control
registe
r0
VIBRCTL0
7
RG_S0_VMC_PMOD
Description
324
Bit
00
4
3
0
00
Name
Description
RG_VIBR_CAL
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
© 2015 - 2018 Airoha Technology Corp.
2
1
0
RG_VIBR_CAL
RW
0
0
0
Page 681 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
327
Bit
Name
Type
Reset
Bit(s)
2:0
7
6
Bit(s)
3:0
5
4
05
3
2
1
Name
Description
RG_VIBR_VOSEL
3'b000: 1.3V
3'b001: 1.5 V
3'b010: 1.8 V
3'b011: 2 V
3'b100: 2.5 V
3'b101: 2.8 V
3'b110: 3 V
3'b111: 3.3 V
32A
Bit
Name
Type
Reset
VIBRL
DO1
VIBRLDO1
6
5
0
1
VIBRL
DOBF0
VIBRLDOBF0
7
1
RG_VIBR_VOSEL
RW
0
4
3
0
00
2
Name
Description
RG_VIBR_BUF_CA
L
4'b0000: 0 mV
4'b0001: -20 mV
4'b0010: -40 mV
4'b0011: -60 mV
4'b0100: -80 mV
4'b0101: -100 mV
4'b0110: -120 mV
4'b0111: -140 mV
4'b1000: +160 mV
4'b1001: +140 mV
4'b1010: +120 mV
4'b1011: +100 mV
4'b1100: +80 mV
4'b1101: +60 mV
4'b1110: +40 mV
4'b1111: +20 mV
© 2015 - 2018 Airoha Technology Corp.
1
RG_VIBR_BUF_CAL
RW
0
0
0
0
Page 682 of 692
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MT2523 Series Reference Manual
32C
Bit
Name
Type
Reset
Bit(s)
7:0
ISINK0_CON0
7
6
5
0
0
0
4
3
ISINK_DIM0_FSEL_L
RW
0
0
00
2
1
0
0
0
0
Name
Description
ISINK_DIM0_FSEL
_L
ISINK0 dimming frequency selection
backlight: (@ 2MHz)
2: 20k Hz
61: 1k Hz
311: 200 Hz
12499: 5 Hz
31249: 2 Hz
62499: 1Hz
indicator: (@32KHz)
0: 1k Hz
4: 200 Hz
199: 5 Hz
499: 2 Hz
999: 1Hz
1999: 0.5Hz
4999: 0.2 Hz
9999: 0.1 Hz
32D
Bit
Name
Type
Reset
ISINK0
Control
Registe
r0
ISINK0
Control
Registe
r1
ISINK0_CON1
7
6
5
0
0
0
4
3
ISINK_DIM0_FSEL_H
RW
0
0
00
2
1
0
0
0
0
Bit(s)
Name
Description
7:0
ISINK_DIM0_FSEL
_H
ISINK0 dimming frequency selection
32E
Bit
Name
Type
Reset
ISINK0
Control
Registe
r2
ISINK0_CON2
7
0
6
ISINK_CH0_STEP
RW
0
5
4
0
0
3
00
2
1
0
ISINK_DIM0_DUTY
RW
0
0
0
0
Bit(s)
Name
Description
7:5
ISINK_CH0_STEP
Coarse 6 step current level for ISINK CH0
000: 4mA
001: 8mA
© 2015 - 2018 Airoha Technology Corp.
Page 683 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
010: 12mA
011: 16mA
100: 20mA
101: 24mA
110: 24mA
111: 24mA
4:0
ISINK ON-duty of dimming0 control
N: (N+1)/32
0: 1/32
1: 2/32
2: 3/32
31: 32/32
ISINK_DIM0_DUTY
330
Bit
Name
Type
Reset
Bit(s)
7:4
3:0
ISINK0
Control
Registe
r4
ISINK0_CON4
7
0
6
5
ISINK_BREATH0_TR1_SEL
RW
0
0
4
3
0
0
00
2
1
ISINK_BREATH0_TR2_SEL
RW
0
0
0
0
Name
Description
ISINK_BREATH0_T
R1_SEL
ISINK0 breath mode rising time selection for duty 0%~30%
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
ISINK_BREATH0_T
R2_SEL
ISINK0 breath mode rising time selection for duty 31%~100%
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
© 2015 - 2018 Airoha Technology Corp.
Page 684 of 692
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
331
Bit
Name
Type
Reset
Bit(s)
7:4
3:0
ISINK0_CON5
7
0
6
5
ISINK_BREATH0_TF1_SEL
RW
0
0
4
3
0
0
00
2
1
ISINK_BREATH0_TF2_SEL
RW
0
0
0
0
Name
Description
ISINK_BREATH0_T
F1_SEL
ISINK0 breath mode falling time selection for duty 0%~30%
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
ISINK_BREATH0_T
F2_SEL
ISINK0 breath mode falling time selection for duty 31%~100%
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
332
Bit
Name
Type
Reset
ISINK0
Control
Registe
r5
ISINK0
Control
Registe
r6
ISINK0_CON6
7
0
6
5
ISINK_BREATH0_TON_SEL
RW
0
0
4
3
0
0
00
2
1
ISINK_BREATH0_TOFF_SEL
RW
0
0
Bit(s)
Name
Description
7:4
ISINK_BREATH0_T
ISINK0 breath mode Ton time selection
© 2015 - 2018 Airoha Technology Corp.
0
0
Page 685 of 692
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MT2523 Series Reference Manual
Bit(s)
3:0
Name
Description
ON_SEL
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
ISINK0 breath mode Toff time selection
0: 0.246s
1: 0.677s
2: 1.046s
3: 1.417s
4: 1.845s
5: 2.214s
6: 2.583s
7: 3.014s
8: 3.383s
9: 3.752s
10: 4.183s
11: 4.552s
12: 4.921s
13: 5.351s
14: 5.720s
15: 6.151s
ISINK_BREATH0_T
OFF_SEL
333
Bit
Name
Type
Reset
Bit(s)
7:0
ISINK1
Control
Registe
r0
ISINK1_CON0
7
6
5
0
0
0
4
3
ISINK_DIM1_FSEL_L
RW
0
0
00
2
1
0
0
0
0
Name
Description
ISINK_DIM1_FSEL_
L
ISINK1 dimming frequency selection
backlight: (@ 2MHz)
2: 20k Hz
61: 1k Hz
311: 200 Hz
12499: 5 Hz
31249: 2 Hz
62499: 1Hz
indicator: (@32KHz)
0: 1k Hz
4: 200 Hz
199: 5 Hz
499: 2 Hz
999: 1Hz
1999: 0.5Hz
© 2015 - 2018 Airoha Technology Corp.
Page 686 of 692
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MT2523 Series Reference Manual
Bit(s)
Name
Description
4999: 0.2 Hz
9999: 0.1 Hz
334
Bit
Name
Type
Reset
ISINK1_CON1
7
6
5
0
0
0
Bit(s)
Name
7:0
ISINK_DIM1_FSEL_
H
Bit(s)
7:5
4:0
7
0
3
2
1
0
0
0
0
ISINK1
Control
Registe
r2
ISINK1_CON2
6
ISINK_CH1_STEP
RW
0
5
4
0
0
3
00
2
1
Description
ISINK_CH1_STEP
Coarse 6 step current level for ISINK CH1
000: 4mA
001: 8mA
010: 12mA
011: 16mA
100: 20mA
101: 24mA
110: 24mA
111: 24mA
ISINK_DIM1_DUTY
ISINK ON-duty of dimming1 control
N: (N+1)/32
0: 1/32
1: 2/32
2: 3/32
31: 32/32
0
6
5
ISINK_BREATH1_TR1_SEL
RW
0
0
0
ISINK1
Control
Registe
r4
ISINK1_CON4
7
0
ISINK_DIM1_DUTY
RW
0
0
0
Name
337
Bit
Name
Type
Reset
4
ISINK_DIM1_FSEL_H
RW
0
0
00
Description
335
Bit
Name
Type
Reset
ISINK1
Control
Registe
r1
4
3
0
0
00
2
1
ISINK_BREATH1_TR2_SEL
RW
0
0
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MT2523 Series Reference Manual
Bit(s)
7:4
3:0
Name
Description
ISINK_BREATH1_T
R1_SEL
ISINK1 breath mode rising time selection for duty 0%~30%
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
ISINK_BREATH1_T
R2_SEL
ISINK1 breath mode rising time selection for duty 31%~100%
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
338
Bit
Name
Type
Reset
Bit(s)
7:4
ISINK1
Control
Registe
r5
ISINK1_CON5
7
0
6
5
ISINK_BREATH1_TF1_SEL
RW
0
0
4
3
0
0
00
2
1
ISINK_BREATH1_TF2_SEL
RW
0
0
0
0
Name
Description
ISINK_BREATH1_T
F1_SEL
ISINK1 breath mode falling time selection for duty 0% ~ 30%
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
© 2015 - 2018 Airoha Technology Corp.
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Any unauthorized use, reproduction or disclosure of this document in whole or in part is strictly prohibited.
MT2523 Series Reference Manual
Bit(s)
Name
Description
13: 2.676s
14: 2.860s
15: 3.075s
3:0
ISINK1 breath mode falling time selection for duty31% ~ 100%
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
ISINK_BREATH1_T
F2_SEL
339
Bit
Name
Type
Reset
Bit(s)
7:4
3:0
ISINK1
Control
Registe
r6
ISINK1_CON6
7
0
6
5
ISINK_BREATH1_TON_SEL
RW
0
0
4
3
0
0
00
2
1
ISINK_BREATH1_TOFF_SEL
RW
0
0
Name
Description
ISINK_BREATH1_T
ON_SEL
ISINK1 breath mode Ton time selection
0: 0.123s
1: 0.338s
2: 0.523s
3: 0.707s
4: 0.926s
5: 1.107s
6: 1.291s
7: 1.507s
8: 1.691s
9: 1.876s
10: 2.091s
11: 2.276s
12: 2.460s
13: 2.676s
14: 2.860s
15: 3.075s
ISINK_BREATH1_T
OFF_SEL
ISINK1 breath mode Toff time selection
0: 0.246s
1: 0.677s
2: 1.046s
3: 1.417s
4: 1.845s
5: 2.214s
6: 2.583s
7: 3.014s
8: 3.383s
9: 3.752s
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MT2523 Series Reference Manual
Bit(s)
Name
Description
10: 4.183s
11: 4.552s
12: 4.921s
13: 5.351s
14: 5.720s
15: 6.151s
33A
Bit
Name
Type
Reset
Bit(s)
7:5
ISINK2_CON1
7
0
6
ISINK_CH2_STEP
RW
0
Bit(s)
7:5
5
4
3
00
2
1
0
0
Name
Description
ISINK_CH2_STEP
Coarse 6 step current level for ISINK CH2
000: 4mA
001: 8mA
010: 12mA
011: 16mA
100: 20mA
101: 24mA
110: 24mA
111: 24mA
33C
Bit
Name
Type
Reset
ISINK2
Control
Registe
r1
ISINK3
Control
Registe
r1
ISINK3_CON1
7
0
6
ISINK_CH3_STEP
RW
0
5
4
3
00
2
1
0
0
Name
Description
ISINK_CH3_STEP
Coarse 6 step current level for ISINK CH3
000: 4mA
001: 8mA
010: 12mA
011: 16mA
100: 20mA
101: 24mA
110: 24mA
111: 24mA
© 2015 - 2018 Airoha Technology Corp.
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MT2523 Series Reference Manual
33F
ISINKS
ACD
Interfa
ce 0
High
ISINK_ANA0_H
Bit
7
6
5
4
3
00
2
Name
Type
Reset
Bit(s)
Name
Description
1
RG_ISINK1_DOUBL
E
isink surrent doubel
1'b1: enable
1'b0: disable
0
RG_ISINK0_DOUBL
E
isink surrent doubel
1'b1: enable
1'b0: disable
344
ISINK_EN_CTRL_Low
Bit
7
6
Name
Type
Reset
5
RG_ISIN
K1_CHO
P_EN
RW
1
4
RG_ISIN
K0_CHO
P_EN
RW
1
1
RG_ISIN
K1_DOU
BLE
RW
0
ISINK
Enable
control
Low
3
F0
2
1
0
ISINK_C
H1_EN
ISINK_C
H0_EN
RW
0
RW
0
Bit(s)
Name
Description
5
RG_ISINK1_CHOP_
EN
ISINK Channel 1 CHOP CLK enable
1'b0: Disable
1'b1: Enable
4
RG_ISINK0_CHOP_
EN
ISINK Channel 0 CHOP CLK enable
1'b0: Disable
1'b1: Enable
1
ISINK_CH1_EN
Turn on ISINK Channel 1
1'b0: Disable
1'b1: Enable
0
ISINK_CH0_EN
Turn on ISINK Channel 0
1'b0: Disable
1'b1: Enable
345
ISINK_EN_CTRL_High
Bit
7
6
5
4
0
RG_ISIN
K0_DOU
BLE
RW
0
ISINK
Enable
control
High
3
Name
© 2015 - 2018 Airoha Technology Corp.
00
2
1
ISINK_C
H1_BIAS
_EN
0
ISINK_C
H0_BIAS
_EN
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MT2523 Series Reference Manual
345
ISINK_EN_CTRL_High
ISINK
Enable
control
High
00
Type
Reset
Bit(s)
RW
0
Name
Description
1
ISINK_CH1_BIAS_E
N
ISINK Channel 1 CHOP CLK enable
1'b0: Disable
1'b1: Enable
0
ISINK_CH0_BIAS_
EN
ISINK Channel 0 CHOP CLK enable
1'b0: Disable
1'b1: Enable
346
Bit
Name
Type
Reset
Bit(s)
7:6
5:4
ISINK_MODE_CTRL
7
6
ISINK_CH0_MODE
RW
0
0
5
4
ISINK_CH1_MODE
RW
0
0
RW
0
ISINK
mode
control
3
08
2
Name
Description
ISINK_CH0_MODE
ISINK Channel 0 enable mode select
2'b00: PWM mode
2'b01: Breath mode
2'b10: register mode
2'b11: register mode
ISINK_CH1_MODE
ISINK Channel 1 enable mode select
2'b00: PWM mode
2'b01: Breath mode
2'b10: register mode
2'b11: register mode
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Source Exif Data:
File Type : PDF File Type Extension : pdf MIME Type : application/pdf PDF Version : 1.5 Linearized : Yes Author : Airoha Technology Corp. Comments : Company : Telegram Studios Content Type Id : 0x010100C01574E716B48540A2901D80B9DAC368 Create Date : 2018:05:03 14:01:59+08:00 Keywords : "MediaTek, LinkIt, development, platform, RTOS, 2523, MT2523G, MT2523D, Bluetooth, BLE, GNSS, open, source, HDK, board, SDK, prototype, IoT, internet, things, UART, I2C, SPI, I2S, PWM, SDIO, MSDC, USB, PCMIF, ADC, dual digital MIC" Modify Date : 2018:05:03 14:10:25+08:00 Source Modified : D:20180503060041 Subject : MT2523 series chipsets include MT2523D, MT2523G, and MT2523S. This reference manual illustrate the programming flow and register control of MT2523 series chipsets. Language : EN-US Tagged PDF : Yes XMP Toolkit : Adobe XMP Core 5.6-c015 84.159810, 2016/09/10-02:41:30 Metadata Date : 2018:05:03 14:10:25+08:00 Creator Tool : Acrobat PDFMaker 15 for Word Document ID : uuid:586ce478-9a94-4159-95cd-0f26b0a2395c Instance ID : uuid:c414749d-1832-4ebf-ba67-e4ce96407a28 Format : application/pdf Title : MT2523 Series Reference Manual Description : MT2523 series chipsets include MT2523D, MT2523G, and MT2523S. This reference manual illustrate the programming flow and register control of MT2523 series chipsets. Creator : Airoha Technology Corp. Producer : Adobe PDF Library 15.0 Headline : MT2523 series chipsets include MT2523D, MT2523G, and MT2523S. This reference manual illustrate the programming flow and register control of MT2523 series chipsets. Page Layout : OneColumn Page Count : 700EXIF Metadata provided by EXIF.tools