Motorola Mobility T56DB2 Dual Band GSM Development Module User Manual g20 Cellular Engine Module Description

Motorola Mobility LLC Dual Band GSM Development Module g20 Cellular Engine Module Description

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Date Submitted	2005-08-03 00:00:00
Date Available	2005-08-03 00:00:00
Creation Date	2003-03-31 16:58:42
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Document Title	g20 Cellular Engine Module Description
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Document Author:	Motorola Communications Ltd.

DRAFT 1 (31.3.03)
g20 Cellular Engine
Module Description
© Motorola Communications Ltd., 2003
A subsidiary of Motorola Inc.
All rights reserved.
Developer’s Guide
98-08901C66-O
DRAFT 1 (31.3.03)
g20 Developer’s Kit
© Motorola Communications Ltd., 2003
A subsidiary of Motorola Inc.
All rights reserved.
Developer’s Guide
98-08901C67-O
DRAFT 1 (31.3.03)
REVISION HISTORY
Revision
Date
Purpose
DRAFT 1 (31.3.03)
g20
Developer’s Kit
CONTENTS
REVISION HISTORY ................................................................................................................................................................ii
PREFACE
1.1 SCOPE OF THIS MANUAL .................................................................................................................................................1
1.2 WHO SHOULD USE THIS MANUAL.................................................................................................................................1
1.3 DISCLAIMER ........................................................................................................................................................................1
1.4 REGULATORY REQUIREMENTS .....................................................................................................................................1
1.5 REGULATORY STATEMENT.............................................................................................................................................1
1.6 SAFETY .................................................................................................................................................................................2
1.6.1 User Operation ............................................................................................................................................................2
1.6.2 Antenna Installation ....................................................................................................................................................2
1.7 APPLICABLE DOCUMENTS ..............................................................................................................................................2
1.8 HOW THIS MANUAL IS ORGANIZED..............................................................................................................................2
INTRODUCTION
2.1 GENERAL DESCRIPTION...................................................................................................................................................3
2.2 TERMS AND ABBREVIATIONS ........................................................................................................................................3
2.3 SAFETY PRECAUTIONS.....................................................................................................................................................3
DEVELOPER BOARD AND INTERFACES DESCRIPTION
3.1 GENERAL..............................................................................................................................................................................5
3.1.1 Developer Board Features...........................................................................................................................................6
3.1.2 Developer Board Connectivity....................................................................................................................................7
3.1.3 Quick Start...................................................................................................................................................................8
3.2 COMMUNICATIONS INTERFACES ................................................................................................................................10
3.2.1 RS232 ........................................................................................................................................................................10
3.2.2 USB ...........................................................................................................................................................................11
3.2.3 SPI .............................................................................................................................................................................11
3.3 CONNECTORS DESCRIPTION.........................................................................................................................................12
3.3.1 UUT Interface Connector..........................................................................................................................................13
3.4 POWER CONNECTIONS ...................................................................................................................................................15
3.4.1 DC Power Source Operation .....................................................................................................................................15
© Motorola Inc., 2003
March 2003
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DRAFT 1 (31.3.03)
3.4.2 AC Adapter Operation.............................................................................................................................................. 16
3.4.3 Battery Operation ..................................................................................................................................................... 16
3.4.4 Power Source Selection ............................................................................................................................................ 16
3.5 SWITCHES AND JUMPERS.............................................................................................................................................. 17
3.6 LED INDICATORS ............................................................................................................................................................. 18
3.7 MMI ..................................................................................................................................................................................... 19
3.7.1 Display...................................................................................................................................................................... 19
3.7.2 Keypad...................................................................................................................................................................... 20
3.8 AUDIO INTERFACE .......................................................................................................................................................... 21
3.8.1 Speaker ..................................................................................................................................................................... 21
3.8.2 Microphone............................................................................................................................................................... 21
3.8.3 Audio Source Selection ............................................................................................................................................ 21
3.8.4 Headset ..................................................................................................................................................................... 22
3.8.5 Alert Speaker ............................................................................................................................................................ 23
3.9 DEVELOPER BOARD PERIPHERALS ............................................................................................................................ 23
3.9.1 SIM Card .................................................................................................................................................................. 23
3.9.2 Entertainment Mute .................................................................................................................................................. 24
3.9.3 LEDs Logic and Control........................................................................................................................................... 24
3.9.4 ADC Test Logic........................................................................................................................................................ 24
3.9.5 Ignition...................................................................................................................................................................... 25
3.9.6 Wakeup ..................................................................................................................................................................... 25
3.9.7 AC Adapter Detection Circuit .................................................................................................................................. 25
3.10 ANTENNA CONFIGURATION....................................................................................................................................... 25
3.11 TEST POINTS ................................................................................................................................................................... 26
3.12 ELECTRICAL SPECIFICATIONS................................................................................................................................... 26
MECHANICAL DESCRIPTION
4.1 MECHANICAL REQUIREMENTS FOR MOUNTING THE G20 MODULE ................................................................. 27
SERVICE SUPPORT
5.1 WEB PAGES ....................................................................................................................................................................... 29
5.2 CUSTOMER ASSISTANCE ............................................................................................................................................... 29
SCHEMATICS, PLACEMENT AND PARTS LIST
6.1 SCHEMATICS..................................................................................................................................................................... 31
6.2 DEVELOPERS BOARD PLACEMENT ............................................................................................................................ 41
6.3 DEVELOPER BOARD PARTS LIST................................................................................................................................. 43
ERRATA
7.1 SWITCH ASSIGNMENTS CORRECTION ....................................................................................................................... 49
INDEX
iv
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LIST OF FIGURES
Figure 1. Developer Board with Accessories ...............................................................................................................................5
Figure 2. Developer Board Components ......................................................................................................................................7
Figure 3. Mounting the g20 Module .............................................................................................................................................8
Figure 4. Attaching the RF Cable .................................................................................................................................................8
Figure 5. ADC Test Logic ..........................................................................................................................................................25
Figure 6. Mechanical Mounting Requirements ..........................................................................................................................27
Figure 7. .....................................................................................................................................................................................32
Figure 8. .....................................................................................................................................................................................33
Figure 9. .....................................................................................................................................................................................34
Figure 10. ...................................................................................................................................................................................35
Figure 11. ...................................................................................................................................................................................36
Figure 12. ...................................................................................................................................................................................37
Figure 13. ...................................................................................................................................................................................38
Figure 14. ...................................................................................................................................................................................39
Figure 15. ...................................................................................................................................................................................40
Figure 16. Developer Board Top Layout....................................................................................................................................41
Figure 17. Developer Board Bottom Layout ..............................................................................................................................42
Figure 18. S100 Options Switch Functions ................................................................................................................................49
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DRAFT 1 (31.3.03)
LIST OF TABLES
Table 1. Terms and Abbreviations ............................................................................................................................................... 3
Table 2. RS232-1 Connector Pinout (J350) ............................................................................................................................... 10
Table 3. USB Connector Pinout (J3).......................................................................................................................................... 11
Table 4. USB Selection (P300 Jumper) ..................................................................................................................................... 11
Table 5. RS232-2 Connector Pinout (J500) ............................................................................................................................... 12
Table 6. Connectors.................................................................................................................................................................... 12
Table 7. g20 Connectors Pinout ................................................................................................................................................. 13
Table 8. J230 Connector Pinout ................................................................................................................................................. 16
Table 9. P600 Connector Pinout ................................................................................................................................................ 16
Table 10. Power Source (P202 Jumper)..................................................................................................................................... 16
Table 11. Switches and Jumpers ................................................................................................................................................ 17
Table 12. LED Indicators ........................................................................................................................................................... 18
Table 13. Display Connector Pinouts (DS800) .......................................................................................................................... 19
Table 14. Keypad Functions...................................................................................................................................................... 20
Table 15. Speaker Connector Pinout (J430)............................................................................................................................... 21
Table 16. Microphone Connector Pinout (J460) ........................................................................................................................ 21
Table 17. Audio Source (P420 Jumper) ..................................................................................................................................... 22
Table 18. Headset Connector Pinout (J440)............................................................................................................................... 22
Table 19. Alert Transducer Pinout (LS400)............................................................................................................................... 23
Table 20. SIM Connector Pinouts (J100)................................................................................................................................... 23
Table 21. SIM Detection Logic (P110 Jumper) ......................................................................................................................... 24
Table 22. Test Points .................................................................................................................................................................. 26
Table 23. Electrical Specifications............................................................................................................................................. 26
Table 24. Developer Board Parts List ........................................................................................................................................ 43
vi
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1. PREFACE
1.1
SCOPE OF THIS MANUAL
This manual introduces the g20 Developer's Kit, and describes the technical details required by the data terminal equipment
(DTE) team to successfully integrate the Motorola g20 cellular engine into an original equipment manufacturer (OEM) wireless
host device. With the help of this manual, the DTE team can use the Developer's Kit to conduct a full series of test and evaluation
procedures on the g20, as well as perform application development.
We at Motorola want to make this guide as helpful as possible. Keep us informed of your comments and suggestions for
improvements.
You can reach us by email: GSM support-BSH015@email.mot.com.
1.2
WHO SHOULD USE THIS MANUAL
This manual is intended for all members of the DTE OEM integration team who will use the g20 Developer’s Kit, including
representatives from hardware, software and RF engineering disciplines.
1.3
DISCLAIMER
This guide provides advice and guidelines to OEM teams. Responsibility regarding how the information is used lies entirely
with the OEM. Statements indicating support provided by, or offered by, Motorola are subject to change at any time.
Motorola reserves the right to make any changes to this manual.
1.4
REGULATORY REQUIREMENTS
The Federal Communications Commission (FCC) requires application for certification of digital devices in accordance with
CFR Title 47, Part 2 and Part 15. This includes Electromagnetic Energy Exposure (EME) testing. As the g20 modem is not a
standalone transceiver but is an integrated module, the g20 cannot be tested by itself for EME certification. It is, however, the
integrator’s responsibility to have the completed device tested for EME certification.
1.5
REGULATORY STATEMENT
The following safety precautions must be observed during all phases of the operation, usage, service or repair of any cellular
terminal or mobile incorporating the g20 module. Manufacturers of the cellular terminal are advised to convey the following
safety information to users and operating personnel, and to incorporate these guidelines into all manuals supplied with the product. Failure to comply with these precautions violates safety standards of design, manufacture and intended use of the product.
Motorola assumes no liability for customer failure to comply with these precautions.
1.
The g20 must be operated at the voltages described in the technical documentation.
2.
The g20 must not be mechanically nor electrically changed. Use of connectors should follow the guidance of the technical
documentation.
3.
The g20 is designed the meet the EMC requirements of ETS 300 342.
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DRAFT 1 (31.3.03)
Preface
4.
When integrating the g20 into a system, Motorola recommends testing the system to ETS300342-1.
5.
The g20 meets the safety requirements of EN60950.
6.
Systems using the g20 are subject to mandatory EMC testing under directive 89/336/EEC (see item 3 above). Other
directives, such as the LVD directive 73/23/EE, may also apply to a system using the g20 module.
1.6
1.6.1
SAFETY
User Operation
Do not operate your telephone when a person is within eight inches (20 centimeters) of the antenna. A person or object within
eight inches (20 centimeters) of the antenna could impair call quality and may cause the phone to operate at a higher power level
than necessary, as well as expose that person to RF energy in excess of that established by the FCC RF Exposure Guidelines.
IMPORTANT: The telephone must be installed in a manner that provides a minimum separation distance of 20 cm or more
between the antenna and persons in order to satisfy FCC RF exposure requirements for mobile transmitting devices.
IMPORTANT: To comply with the FCC RF exposure limits and satisfy the categorical exclusion requirements for mobile
transmitters, the requirements described in the section that follows must be met.
1.6.2
Antenna Installation
• A minimum separation distance of 20 cm must be maintained between the antenna and all persons.
• The effective radiated power of the transmitter must be less than 1.5 Watts ERP (2.45 Watts or 33.9 dBm EIRP). This requires
that the combination of antenna gain and feed line loss does not exceed 11 dBi.
1.7
APPLICABLE DOCUMENTS
g20 Cellular Engine Module Description: 9808901C66-O
g20 AT Commands: 9808901C68-O
1.8
HOW THIS MANUAL IS ORGANIZED
This manual contains the following chapters:
• Chapter 1 contains this Preface.
• Chapter 2 introduces the g20 Developer’s Kit and provides important safety instructions.
• Chapter 3 describes the Developer Board and its components in detail, including connectors, jumpers, DIP switches and
LED indicators. It also includes a set of Quick Start procedures for first-time use.
• Chapter 4 provides a mechanical description of the Developer Board.
• Chapter 5 provides contact information for Motorola Service Support and Customer Assistance.
• Chapter 6 includes schematic diagrams of the g20 Developer’s Kit as well as a complete parts list.
• Errata provides a correction to the Developer Board.
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2. INTRODUCTION
2.1
GENERAL DESCRIPTION
The g20 Developer’s Kit is intended for evaluating the g20 module, as well as for developing and testing software applications
for it.
2.2
TERMS AND ABBREVIATIONS
This section provides definitions for terms and acronyms used in this document.
Table 1. Terms and Abbreviations
Acronym/Term
ADC
2.3
Definition/Description
Analog to Digital Converter
CMOS
Complementary Metal Oxide Semiconductor
CODEC
Coder-Decoder
DTE
Data Terminal Equipment (such as terminals, PCs and so on)
GPRS
General Packet Radio Service
GSM
Global System for Mobile Communications
IGN
WHAT DOES THIS STAND FOR?
IRQ
Interrupt Request
LED
Light-Emitting Diode
MMCX
Multimedia Communications Exchange
PCM
Pulse Code Modulation
RF
Radio Frequency
SIM
Subscriber Identity Module
SPI
Serial Peripheral Interface
UART
Universal Asynchronous Receiver Transmitter
USB
Universal Serial Bus
UUT
Unit Under Test
SAFETY PRECAUTIONS
Most Developer Board circuits are not shielded. Be sure to take appropriate precautionary measures in order to avoid ESD while
handling the kit. ESD can damage the Developer Board and/or the g20 module attached to it.
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Introduction
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DRAFT 1 (31.3.03)
3. DEVELOPER BOARD AND
INTERFACES DESCRIPTION
3.1
GENERAL
The g20 Developer Board is designed to support the hardware and software development and validation of the g20 GSM/GPRS
data module. The Developer Board provides a peripheral platform to operate the g20 as a standalone product, and to easily
access the g20 interface connector signals.
The Developer Board has the following functions:
• Serves as a mounting platform for the g20 module
• Supplies the g20 module with supply voltage
• Provides standard communication interfaces (USB and RS232)
Kit Number: FTN8121A
Board Number: 8487653U01
Revision: P3
Figure 1 shows the Developer Board and some of its accessories with the g20 module attached to it: PLEASE PROVIDE
GRAPHIC.
Figure 1. Developer Board with Accessories
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DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
3.1.1
Developer Board Features
The Developer Board provides the following features to facilitate software and hardware development:
• Output of all g20 connector signals to a large header connector for debugging
• Host-systems connector
• AC, battery and DC power supplies for board operation
• LED indicators for critical signals
• Display and keypad for phone operation
• USB and RS232 serial interfaces
• Secondary RS232 interface using the SPI bus
• Digital audio interface
• Analog audio interface for speaker, alert speaker, microphone and headset
• SIM card connector
• Switches and jumpers for controlling board operation
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Developer Board and Interfaces Description
3.1.2
Developer Board Connectivity
Figure 2 shows the Developer Board and its components:
Figure 2. Developer Board Components
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Developer Board and Interfaces Description
3.1.3
Quick Start
This section describes a series of Quick Start procedures for first-time use of the Developer Board.
3.1.3.1
g20 Connection
Open the top cover of the Developer Board and insert the g20 in its designated position. The g20 should connect to the 70-pin
connector, labeled UUT (P1), and its holes should be aligned with the spacers on the Developer Board.
Fasten the g20 to the Developer Board spacers using two M2x0.4x6 mm screws provided with the kit. PLEASE PROVIDE
GRAPHIC.
Figure 3. Mounting the g20 Module
3.1.3.2
Antenna Connection
Connect the on-board antenna cable to the g20 antenna connector. Connect the RF Out output to the Internal antenna input using
the supplied cable. PLEASE PROVIDE GRAPHIC.
Figure 4. Attaching the RF Cable
While working, you can keep the box closed.
Note
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Developer Board and Interfaces Description
3.1.3.3
Power Connection
The Developer Board can be powered using either a wall-mounted adapter, a DC power supply or a battery cell.
Only the adapter option is covered in this section. See “Power Connections” on page 15., when using other power
methods.
Note
Connect the adapter to the wall outlet and to the Developer Board adapter connector (J230) labeled Adapter.
The power source selection jumper, labeled Source, must be in the correct position for adapter operation (pins 1-2
shorted).
Note
3.1.3.4
Serial Connection
The USB and RS232 serial interfaces are available for PC communications. If a PC connection is required, connect either an
RS232 cable with a male D-Type connector to the labeled UART1 connector, or a USB cable with a B-Type connector to the
labeled USB connector.
When using a USB interface, be sure the USB jumper (P300) position reflects the g20 version being used. See
“USB” on page 11..
Note
3.1.3.5
Audio Connection
The Developer Board has several available audio configurations:
• Hands-free audio using the speaker and microphone
• Digital PCM audio
• Personal headset audio
Only the headset audio option is covered in this section. See “Audio Interface” on page 21. when using other audio
options.
Note
Connect the supplied headset to the headset connector (J440) labeled Headset.
3.1.3.6
SIM Card Connection
Insert a SIM card into the SIM tray (J100).
When using a SIM card, be sure the SIM jumper (P110) position reflects the g20 version being used. See “SIM
Card” on page 23. for more details.
Note
3.1.3.7
Default Switches and Jumper Settings
The Developer Board jumpers and switches are initially configured to comply with this Quick Start operation mode. If different
settings are necessary, refer to the relevant section for details about the required switch or jumper settings.
3.1.3.8
Operating the g20
After completing the initial setup, turn on the Developer Board power by switching the power switch (S200) to its on position,
and turn on the g20 by depressing the on/off switch (S110) or by depressing the on/off button on the keypad.
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Developer Board and Interfaces Description
3.2
COMMUNICATIONS INTERFACES
The g20 Developer Board includes three different serial interfaces:
• RS232
• USB
• SPI
The RS232 and USB ports are multiplexed within the g20, and therefore cannot be operated simultaneously. Their default
connection is RS232. The SPI interface is used for debugging.
Each of these serial interfaces is described in the sections that follow.
3.2.1
RS232
The RS232 serial port is the primary interface to the g20 UUT via the J350 connector. This port is denoted by the RS232-1
marking beside the 9-pin, D-type connector.
The UUT RS232 signals are active-low CMOS-level signals (0-2.7 V), which are converted by the Developer Board to standard
RS232 levels for PC communications.
Table 2. RS232-1 Connector Pinout (J350)
Pin #
Description
DTE I/O
DCD
In
RXD
In
TXD
Out
DTR
Out
Ground
DSR
In
RTS
Out
CTS
In
RI
In
The RS232 connector pin names are DTE-oriented.
Note
10
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Developer Board and Interfaces Description
3.2.2
USB
The USB interface operates according to the g20 UUT configuration. The Developer Board has a complete USB transceiver
circuit to support USB communications for g20 units that do not include a USB driver of their own. The Developer Board USB
interface can be overridden manually when using a g20 unit that does include its own USB driver interface.
Table 3. USB Connector Pinout (J3)
Pin #
Description
VCC
D-
D+
Ground
The USB jumper (P300) located next to the USB connector selects between the Developer Board USB interface and the UUT
USB interface. By changing the jumper position, the USB_VBUS signal is diverted to the selected driver (in the g20 or on the
Developer Board) and operates it.
Table 4. USB Selection (P300 Jumper)
P300
Jumper
Position
Selected Mode
• •
•
USB Source
•
g20
g20 driver
EVB (Developer Board)
EVB driver
USB disconnected
3.2.3
SPI
The Developer Board includes a secondary 4-wire RS232 interface, which is connected to the g20 internal SPI bus through the
J500 connector. This interface is used to debug applications. This port is denoted by the RS232-2 label next to the 9-pin D-type
connector.
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DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
On the Developer Board, the g20 SPI interface is converted to standard RS232 signals for PC communications. The conversion
process uses the RS232 interface as a second slave on the internal g20 SPI bus, and communicates with it as such. SPI read and
write operations are performed normally, using the CS and IRQ signals provided by the conversion circuit. The IRQ signal is
connected to a g20 IRQ pin.
Table 5. RS232-2 Connector Pinout (J500)
Pin #
Description
DTE I/O
Unused
RXD
In
TXD
Out
Unused
Ground
Unused
RTS
Out
CTS
In
Unused
The RS232 connector pin names are DTE-oriented.
Note
3.3
CONNECTORS DESCRIPTION
All the Developer Board connectors are marked by their reference number and by a pin-1 indicator. Table 6 describes the available connectors on the Developer Board.
Table 6. Connectors
Reference
12
Connector
Description
P1
g20 UUT
g20 UUT (unit under test) connector
J1
Host
Emulates the g20 connector for host systems
P100
Diagnostics
Debug header connector (70-pin)
J300
USB
USB B-type connector
J350
RS232-1
Primary RS232 to PC
J500
RS232-2
Secondary RS232 for debugging (SPI)
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Developer Board and Interfaces Description
Table 6. Connectors (Continued)
Reference
Description
J430
Speaker
Hands-free system speaker jack
J460
Microphone
Hands-free system microphone jack
J440
Headset
Headset jack
J201
VCC
Developer Board DC power supply
J200
GND
Developer Board common ground
P600
Battery
Battery connector
J230
AC adapter/charger
Wall-mount adapter connector (CE bus
compatible)
J100
SIM card
SIM card socket with detection
P2
Antenna connector
SMA connector for g20 antenna
M1
RF Antenna
RF antenna
Display
Display pads
DS800
3.3.1
Connector
UUT Interface Connector
Table 7 lists the pin names and functions available for g20 interface connectors. All pin numbers and functions are identical for
the P1, J1 and P100 connectors on the Developer Board.
Table 7. g20 Connectors Pinout
Pin #
98-08901C64-O
Pin Name
Pin #
Pin Name
GND
GND
GND
GND
VCC
VCC
VCC
VCC
RTS_N
10
USB_DET
11
RXD_N
12
Not connected
13
DSR_N
14
Not connected
15
CTS_N
16
WAKEUP_IN_N
13
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Developer Board and Interfaces Description
Table 7. g20 Connectors Pinout (Continued)
Pin #
14
Pin Name
Pin #
Pin Name
17
DCD_N
18
PCM_DIN
19
DTR_N
20
PCM_DOUT
21
TXD_N
22
PCM_CLK
23
RI_N
24
PCM_FS
25
RESET_N
26
WAKEUP_OUT_N
27
BL_SINK
28
KBC1_N
29
CHRG_DIS
30
KBC0_N
31
CHRG_SW
32
KBR0_N
33
CHRG_STATE
34
KBR1_N
35
CHRG_DET_N
36
KBR2_N
37
ENT_MUTE
38
KBR3_N
39
TX_EN_N
40
KBR4_N
41
ANT_DET
42
KBR5_N
43
VIB_OUT
44
SIM_RST_N
45
CHRG_TYP
46
SIM_CLK
47
THERM
48
SIM_VCC
49
GPRS_DET_N
50
SIM_PD
51
IGN
52
SIM_DIO
53
ON_OFF_N
54
LCD_CS
55
HDST_INT_N
56
LCD_DATA
57
HDST_MIC
58
LCD_CLK
59
MIC_GND
60
LCD_RS
61
MIC
62
SPI_IRQ_N
63
ALRT_N
64
SPI_DIN
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Developer Board and Interfaces Description
Table 7. g20 Connectors Pinout (Continued)
Pin #
3.4
Pin Name
Pin #
Pin Name
65
ALRT_P
66
SPI_CLK
67
SPKR_N
68
SPI_DOUT
69
SPKR_P
70
SPI_CS
POWER CONNECTIONS
Developer Board power can be supplied from a DC power source, an AC power adapter or a battery. The same power source is
used for the UUT and the board peripherals.
The Developer Board includes three jumpers for controlling the power supply:
• P202: AC adapter or battery power source selection
• P201: Connects/disconnects the Developer Board peripherals from the power supply
• P200: Connects/disconnects the g20 from the power supply
Each power supply option is described in the sections that follow.
3.4.1
DC Power Source Operation
When using a DC power supply, the power source is applied to connectors J201 (VCC) and J200 (Ground). The DC voltage
applied through this connection should not exceed the recommended operational limits of 3V-4.2V. In all cases, the DC source
input is protected from over voltage and reverse polarity, and includes a 2.5A protective fuse.
The supplied DC input connectors must be attached to the Developer Board in order to use the DC power source. The two
connectors should be screwed into their appropriate positions (J201, labeled VCC, and J200, labeled GND). Use the red connector for VCC and the black one for GND. Connect the DC power source to these connectors using banana plugs, alligator clamps
or wire.
It is recommended to remove jumper P202 when using the DC power source. In any case, the DC power source
should not be used when other sources are connected.
Caution
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Developer Board and Interfaces Description
3.4.2
AC Adapter Operation
When using an AC adapter, the adapter is connected to J230. The adapter supplies a constant 4.5 V, which is regulated to a
nominal 4.1 V on the Developer Board.
Table 8. J230 Connector Pinout
Pin #
3.4.3
Pin Name
GND
Detection circuit
VCC
Battery Operation
The Developer Board supports a battery power supply. The battery used must be a 3.6V lithium-ion cell, corresponding to
Motorola part number 0189727L01.
When using a battery as the main power source, the AC adapter input operates as a battery charger, which connects to an
on-board battery charging circuit.
Table 9. P600 Connector Pinout
Pin #
3.4.4
Pin Name
VCC
GND
Power Source Selection
The Developer Board AC adapter and battery power inputs include a selection jumper (P202) that diverts either the regulated
AC adapter power or the battery power to the board.
Table 10. Power Source (P202 Jumper)
P202 Jumper
Position
•
•
•
16
Selected Mode
Power Source
•
Adapter
AC Adapter
Battery
LiIon Battery
Adapter and battery disconnected
DC power only
98-08901C64-O
DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
The DC power source input is independent of the other power inputs, and does not pass through this selection
jumper. Nevertheless, it is still recommended to disconnect the P202 jumper when using the DC source.
Note
3.5
SWITCHES AND JUMPERS
Table 11 describes the available switches and jumpers on the Developer Board.
Table 11. Switches and Jumpers
Reference
98-08901C64-O
Switch/Jumper
Description
S200
Board on/off
Developer Board on/off switch
S110
g20 on/off
g20 UUT on/off push button switch
S100
Options switch
Four switches for Developer Board options
P420
Audio
Analog/digital audio-selection jumper
P201
EVB
Peripheral power input jumper
P200
UUT
g20 UUT power input jumper
P202
Source
Power source selection jumper
P110
SIM
SIM card detect logic selection jumper
P300
USB
USB driver source selection jumper
P130
EMUTE
Entertainment mute connection point
17
DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
3.6
LED INDICATORS
Table 12 describes the LED indicators available on the Developer Board. Each LED is marked on the board by the function it
represents.
Table 12. LED Indicators
Group
GPIO
LED
Reference
Description
WAKEUP
D704
Wake-up in/out
IGN
D702
Ignition input
GPRS
D710
GPRS coverage indication
SIM
D703
SIM card reset indication
UUT
D701
g20 reset signal
PWR
D200
Developer Board power indicator
EMUTE
D708
Entertainment mute indicator
CS
D741
SPI chip-select output
IRQ
D745
SPI IRQ input
VCC
D760
USB VBUS
DATA
D761
USB D+
RXD
D722
DTE receive data
TXD
D721
DTE transmit data
RTS
D724
Request to send
CTS
D723
Clear to send
DTR
D725
Data terminal ready
DSR
D726
Data set ready
DCD
D727
Carrier detect
RI
D728
Ring indicator
SPI
USB
RS232-1
18
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DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
Table 12. LED Indicators (Continued)
Group
LED
Reference
Description
RXD
D743
DTE receive data
TXD
D742
DTE transmit data
CTS
D744
Clear to send
RTS
D745
Request to send
RS232-2
3.7
MMI
The Developer Board includes a man-machine interface (MMI), complete with display and keypad. The signals from the display
and keypad are directly connected to the UUT interface.
3.7.1
Display
The grayscale display (DS800) is not a standalone component, and includes a complete assembly in which it is housed, along
with other necessary parts.
Table 13. Display Connector Pinouts (DS800)
Pin #
98-08901C64-O
Description
Chip select
Reset
Register select
Serial clock
Serial data
Supply
Supply
Ground
Vout
19
DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
3.7.2
Keypad
Table 14 describes the Developer Board keypad layout.
Table 14. Keypad Functions
20
Pad Reference
Function
Alternate
S803
Punctuation
S802
ABC
S820
DEF
S801
GHI
S805
JKL
S804
MNO
S806
PQRS
S817
TUV
S811
WXYZ
S809
S810
Star (*)
S815
Pound (#)
S814
Send
S813
End
S819
Menu
S822
Right
S823
Left
S818
Up
S816
Down
S812
Soft Right
S808
Soft Left
On/Off
98-08901C64-O
DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
3.8
AUDIO INTERFACE
The Developer Board includes analog and digital audio interfaces. The audio interface contains a hands-free speaker and microphone, a headset, and an alert speaker.
3.8.1
Speaker
The differential speaker interface is designed as a car-kit hands-free speaker. The Developer Board uses an audio amplifier to
amplify the speaker audio output to desired levels. The speaker connector (J430) is labeled SPEAKER. The speaker output is 8
ohms matched.
Table 15. Speaker Connector Pinout (J430)
Pin #
3.8.2
Description
Not connected
Speaker positive output
Speaker negative output
Not connected
Microphone
The microphone interface is designed as a car-kit hands-free microphone. The microphone connector (J460) is labeled MIC.
Table 16. Microphone Connector Pinout (J460)
Pin #
3.8.3
Description
Ground
Microphone audio-in
Ground
Ground
Ground
Audio Source Selection
Microphone and speaker audio can be routed through two different sources: the g20 audio amplifiers or the g20 digital audio
interface. The Developer Board includes a CODEC that converts the g20 digital audio data to analog audio signals.
98-08901C64-O
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DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
The P420 jumper selects the speaker and microphone source, as indicated in Table 17.
Table 17. Audio Source (P420 Jumper)
P420 Jumper
Position
•
•
•
Selected Mode
Audio Source
•
Digital audio
CODEC audio I/O
Analog audio
G20 audio I/O
Audio disconnected
3.8.4
Headset
The headset interface is designed as a portable phone audio interface, and is similar to the headset interface. The headset connector (J440) includes a speaker, microphone and a detection signal. The speaker and microphone signals are directly connected to
the g20 audio signals.
The purpose of the detection circuit is to switch the g20 headset audio paths on and off, whenever a headset connection is
detected. Headset detection is made whenever a headset plug is inserted into the jack. This action disables the g20 microphone
and speaker, and routes the audio signals to the headset.
Table 18. Headset Connector Pinout (J440)
Pin #
22
Description
Ground
Headset-detect switch
Speaker audio-out
Microphone audio-in
Ground
98-08901C64-O
DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
3.8.5
Alert Speaker
The Developer Board includes an on-board transducer for alert audio sounds (LS400), which is labeled ALERT. The transducer
is connected directly to the g20 differential alert outputs. The alert transducer is similar to the alert speaker, which sounds the
g20 MIDI signals.
Table 19. Alert Transducer Pinout (LS400)
Pin #
3.9
Description
Alert audio inverted output
Alert audio positive output
Alert audio inverted output
Alert audio inverted output
DEVELOPER BOARD PERIPHERALS
This section describes the connectors for peripheral devices that can be used with the Developer Board.
3.9.1
SIM Card
The SIM card connector (J100) is external to the UUT, but is connected directly to it, similar to an internal SIM. The UUT can
accept 1.8V and 3V SIM cards.
Table 20. SIM Connector Pinouts (J100)
Pin
98-08901C64-O
Description
Ground
Presence detect
Clock
Reset
VCC
Serial data I/O
VPP
Ground
23
DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
The SIM card supports both active-high and active-low detection configurations. Jumper P110 is used to select between these
configurations.
Table 21. SIM Detection Logic (P110 Jumper)
P110 Jumper
Position
•
•
•
Selected Mode
Active-low
•
Active-high
Not active
3.9.2
Entertainment Mute
The Developer Board includes an entertainment-mute logic circuit that is responsible for muting a car radio whenever the phone
is in use (for example, incoming calls, dialing, and so on).
The entertainment-mute logic circuit includes an ENABLE input that is both a g20 signal and an open-collector MUTE output.
This circuit is connected to jumper P130 for host systems.
The entertainment-mute operation is not currently supported by the g20.
Note
3.9.3
LEDs Logic and Control
The Developer Board includes LED indicators for critical signals. A 3.0V regulator powers the LEDs, and an on/off switch
controls their operation. The switch is located in the S100 switch array, and is labeled LED. Turning the switch on and off
enables or disables all LED activity, respectively.
The Developer Board power LED and the g20 on/off LED are always active and cannot be disabled.
3.9.4
ADC Test Logic
The g20 has two ADC pins. The g20 charger and temperature monitor currently occupy these pins. The Developer Board
includes optional resistors for ADC testing. These resistors, two for each ADC signal, can be used to set a specific voltage across
the ADC signal.
24
98-08901C64-O
DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
The G20 has a 47K-ohm internal pull-up resistor at each ADC input, as shown in Figure 5.
Figure 5. ADC Test Logic
3.9.5
Ignition
The Developer Board contains an on/off switch that is connected to the g20 UUT ignition circuit. The switch is located in the
S100 switch array, and is labeled IGN. Turning the switch on applies the UUT supply on the Ignition input pin.
3.9.6
Wakeup
The Developer Board includes a wakeup switch that toggles the g20 WAKEUP_IN_N signal. The switch is located in the S100
switch array, and is labeled WAKEUP.
3.9.7
AC Adapter Detection Circuit
The g20 charger module includes a detection logic circuit for detecting charger presence and type. The detection circuit is internal to the g20 module. However, the Developer Board does contain the necessary routing from the g20 UUT to the AC adapter
connector.
Two g20 signals are used for this detection:
• AD1: ADC signal for charger type detection
• CHRG_SW: Charger rate control
These detection signals are present to provide compatibility with the phone. They may be removed in future versions.
3.10
ANTENNA CONFIGURATION
An antenna (internal or external) must be connected to the Developer Board for adequate GSM reception. You can connect the
g20 to either the on-board internal antenna or to an external antenna. Two RF connectors on the Developer Board, labeled INT
ANT and EXT ANT, are used for this purpose. The EXT ANT connector has an internal extension cable with MMCX termination, which must be connected to the g20 RF connector. The INT ANT connector is an on-board connection to the Developer
Board internal antenna.
When using the internal antenna option, the additional RF cable supplied in the Developer’s Kit must be connected between the
EXT ANT and INT ANT connectors. When using the external antenna option, an external antenna or antenna application must
be connected to the EXT OUT connector. (The connection cable is not included.)
98-08901C64-O
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DRAFT 1 (31.3.03)
Developer Board and Interfaces Description
3.11
TEST POINTS
Table 22 describes the available test points on the Developer Board.
Table 22. Test Points
Reference
3.12
Function
TP400
Alert speaker positive signal
TP401
Alert speaker inverted signal
ELECTRICAL SPECIFICATIONS
Table 23 describes the electrical specifications OF the Developer Board.
Table 23. Electrical Specifications
Parameter
Min
Typ
Max
Units
DC power supply
3.0
3.6
4.2
Adapter power supply
4.4
4.6
12
Battery power supply
3.0
3.6
4.2
Off current
---
36
46
uA
On current
8.1
8.33
8.45
mA
Active current peripherals off
12.7
13
---
mA
Active current peripherals on*
13.1
---
190
mA
Depends on the active peripherals (LEDs, UART, USB, and so on) in use.
26
98-08901C64-O
DRAFT 1 (31.3.03)
4. MECHANICAL DESCRIPTION
4.1
MECHANICAL REQUIREMENTS FOR MOUNTING THE G20 MODULE
The size of the g20 module is 45.2 x 24.4 x 6 mm. Two 2.4 mmØ holes are provided to accommodate M2 screws or #1-64 UNC
2A machine screws. Torque to 2 inches per pound. Refer to Figure 6 below for mounting requirements:
Figure 6. Mechanical Mounting Requirements
98-08901C64-O
27
DRAFT 1 (31.3.03)
Mechanical Description
28
98-08901C64-O
DRAFT 1 (31.3.03)
5. SERVICE SUPPORT
5.1
WEB PAGES
PLEASE PROVIDE DETAILS FOR THIS SECTION.
5.2
CUSTOMER ASSISTANCE
For customer assistance, contact us as directed below:
Helpdesk email: n2cshd@motorola.com
Helpdesk telephone: +972-3-568-4040
98-08901C64-O
29
DRAFT 1 (31.3.03)
Service Support
30
98-08901C64-O
DRAFT 1 (31.3.03)
6. SCHEMATICS, PLACEMENT AND
PARTS LIST
6.1
SCHEMATICS
This section presents the schematics for the g20 Developer Board.
PLEASE PROVIDE INFORMATION FOR FIGURE CAPTIONS.
98-08901C64-O
31
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 7.
32
98-08901C64-O
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 8.
98-08901C64-O
33
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 9.
34
98-08901C64-O
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 10.
98-08901C64-O
35
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 11.
36
98-08901C64-O
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 12.
98-08901C64-O
37
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 13.
38
98-08901C64-O
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 14.
98-08901C64-O
39
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 15.
40
98-08901C64-O
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
6.2
DEVELOPERS BOARD PLACEMENT
Figure 16 shows the top layout of the Developer Board:
Figure 16. Developer Board Top Layout
98-08901C64-O
41
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Figure 17 shows the bottom layout of the Developer Board:
Figure 17. Developer Board Bottom Layout
42
98-08901C64-O
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
6.3
DEVELOPER BOARD PARTS LIST
Table 24. Developer Board Parts List
REFERENCE
SYMBOL
MOTOROLA
PART NO.
DESCRIPTION
Resistors
98-08901C64-O
R440
0662057A21
RES, 68
R600
0662057A22
RES, 75
R330
0662057A25
RES, 100
R773
0662057A28
RES, 130
R723, R725,
R745, R747
0662057A31
RES, 180
R703
0662057A35
RES, 270
R705, R707,
R709-10,
R713,
R717-18,
R727, R729,
R731, R733,
R735, R737,
R743, R749,
R751, R753,
R763, R764
0662057A36
RES, 300
R203
0662057A39
RES, 390
R603
0662057A47
RES, 820
R604
0662057A49
RES, 1K
R602
0662057A51
RES, 1.2K
R312
0662057A53
RES, 1.5K
R465-66
0662057A57
RES, 2.2K
R201-2, R702, 0662057A65
R704, R706,
R708,
R711-12,
R716, R722,
R724, R726,
R728, R730,
R732, R734,
R736, R742,
R744, R746,
R748, R750,
R752,
R760-61,
R800
RES, 4.7K
R179, R197,
0662057A73
R200, R303,
R414-16,
R441, R508-9,
R525, R601,
R607, R774,
R781
RES, 10K
R230-32,
R322
RES, 12K
0662057A75
43
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Table 24. Developer Board Parts List (Continued)
44
REFERENCE
SYMBOL
MOTOROLA
PART NO.
DESCRIPTION
R411-12,
R418
0662057A80
RES, 20 K
R177-78,
0662057A89
R191-92,
R196, R198,
R317-18,
R320-21,
R353, R507,
R608-9, R780
RES, 47 K
R435
RES, 100 K
0662057A97
R1, R10-11,
0662057B47
R15-16, R107,
R116-144,
R146,
R148-49,
R151-53,
R155, R157,
R159, R170,
R172-76,
R181-190,
R300-302,
R350-352,
R400-402,
R407-410,
R413, R417,
R419,
R423-27,
R460,
R480-85,
R500-503,
R506,
R510-524,
R594-97,
R606,
R611-618,
R700, R720,
R740,
R770-771,
R801-805
RES, 0
R790
0662057C01
RES, 0
R430-31,
R433-34
0662057P20
RES, 20K
R221
0662057P95
RES, 100K
R234
0662057P96
RES, 130K
R211, R220,
R241
0662057P97
RES, 150K
R210, R240
0662057P99
RES, 200K
R233
0662057T17
RES, 301K
R310-11
0662057T43
RES, 33.2
R772
0662057W13
RES, 3.3
98-08901C64-O
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Table 24. Developer Board Parts List (Continued)
REFERENCE
SYMBOL
MOTOROLA
PART NO.
DESCRIPTION
Fuses
F200
0904923K01
FUSE
F600
6586221J04
FUSE
J430
0909032K01
CONN_J
J460
0909399T09
CONN_J
J350, J500
0909672B03
CONN_J
P2
0909908P02
CONN_J
J1
0987547V01
CONN_J
J300
0987583U01
CONN_J
J440
0987837L02
CONN_J
J230
0989601K01
Connectors
CONN_J
Capacitors
C1, C2, C3,
C4
2113740F01
CAP, 0.5p
C5
2113740F19
CAP, 4.7p
C207, C215,
C217, C234
2113740F25
CAP, 8.2p
C442, C444,
C447, C450,
C462,
C472-473
2113740F27
CAP, 10p
C100,
2113740F39
C102-106,
C108-115,
C130, C137,
C143,
C147-151,
C153-160,
C171,
C191-192,
C211, C221,
C241, C312,
C401-404,
C416-418,
C421-428,
C436-439,
C443,
C445-446,
C448-449,
C451-2, C461,
C463-4,
C470-471,
C474-475,
C502-510,
C781,
C810-819
98-08901C64-O
CAP, 33p
45
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Table 24. Developer Board Parts List (Continued)
REFERENCE
SYMBOL
MOTOROLA
PART NO.
DESCRIPTION
C125, C128,
C131, C134,
C208, C216,
C218, C231,
C511-12
2113740F41
CAP, 39p
C411-412,
C414
2113741F49
CAP, 10n
C101, C107,
C116-124,
C126-127,
C129,
C132-133,
C135-136,
C138-142,
C144-146,
C152, C465,
C600
2113743E20
CAP, 100n
C430-431,
C433-434
2113743K16
CAP, 220n
C361-364,
C521-524
2113743K17
CAP, 330n
C310, C313,
C466
2113928C04
CAP, 4.7u
C440-441
2113928C12
CAP, 10u
C170,
C172-173,
C180, C190,
C200, C233,
C300, C311,
C350, C360,
C400, C410,
C413, C415,
C420, C432,
C435, C453,
C460, C500,
C513, C520,
C700, C720,
C770-774,
C780,
C800-801
2113928P04
CAP, 1u
C230, C232
2311049A57
CAPP, 10u
C210, C212,
C220, C222,
C240, C242
2311049A72
CAPP, 10u
C201-206
2387572V01
CAPP, 1000u
Inductors
L440
2409154M42
SH400
2604044K01
IDCTR, 33n
Shields
46
SHIELD
98-08901C64-O
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Table 24. Developer Board Parts List (Continued)
REFERENCE
SYMBOL
MOTOROLA
PART NO.
DESCRIPTION
Connectors
P130
2880001R01
CONN_P
P120,
P200-201
2880001R02
CONN_P
P110, P202,
P300, P420
2880001R03
CONN_P
P600
2886290J07
CONN_P
P100
2886397J02
CONN_P
P1
2887548V01
CONN_P
J201
2987604U01
CONN_J
J200
2987604U02
CONN_J
Contacts
M1
3903920K01
CONTACT
S200
4008241G06
SWITCH_ET01
S110
4008242G05
SWITCH
J100
4009060S03
SWITCH_CONTACT_BLOCK
S100
4080564C02
Switches
SWITCH
Spacers
M2, M3, M4,
M5, M6, M7,
M8, M9
4302809C15
SPACER
LEDs
D702-704,
D708, D710,
D721-8,
D741-746,
D760-761
4805729G44
BR1102W
D770-771
4870370A25
CL-260S-WA
D200, D701
4880304L02
LED_RED
Transistors
98-08901C64-O
Q701-704,
Q706, Q708,
Q710,
Q760-761
4809579E16
TN0200T
Q705, Q707,
Q711,
Q721-728,
Q741-746
4809579E18
TP0101T
Q200, Q780
4809807C31
IRF7220
Q350, Q720,
Q740, Q1000
4809939C05
UMC5NTL
47
DRAFT 1 (31.3.03)
Schematics, Placement and Parts List
Table 24. Developer Board Parts List (Continued)
REFERENCE
SYMBOL
MOTOROLA
PART NO.
DESCRIPTION
Q110, Q300,
Q500, Q610,
Q620, U771
4813824A10
MMBT3904
Q201
4813824A17
MMBT3906
Q600
4813824B11
MMJT9435
Q190
4813824B13
MMJT9410T1
Diodes
VR200
4813831A14
SMB5918
D320
4813833C02
MMBD6100
VR100-105,
VR310
4886182U05
UMZ6.8EN
U510
5102870C15
MAX3100EEE
U201, U220,
U240
5104187K10
MAX604ESA
U230
5104187K89
MIC29302BU
U370, U380,
U530
5105492X05
TC7SH32
U520
5108428S67
MAX3223EAP
U330
5109522E53
NC7SZ125
U360
5109781E76
MAX3238
U320
5109817F26
TC54VN2902E
U420
5113805B39
MC74HC4053
U410
5113811A56
MC145481
U300, U350,
U400, U500
5113837A07
MC74LCX244
U430
5186214J87
TPA6203A1GQVR
U600
5187970L09
LM3652
U310
5187970L15
ISP1104
U770
5187970L20
LM2795BLX
Integrated Circuits
General
48
M100
5987772L02
MOTOR
Y510
4884450T02
XTAL3_6864MHZ
LS400
5087951K01
SPKR
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DRAFT 1 (31.3.03)
7. ERRATA
7.1
SWITCH ASSIGNMENTS CORRECTION
The S100 options switch on the Developer Board is labeled incorrectly. Figure 18 shows the correct function of each switch.
PLEASE PROVIDE A PICTURE WITHOUT CALLOUTS.
Figure 18. S100 Options Switch Functions
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DRAFT 1 (31.3.03)
Errata
50
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8. INDEX
98-08901C64-O
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DRAFT 1 (31.3.03)
Index
52
98-08901C64-O
DRAFT 1 (31.3.03)
REVISION HISTORY
Revision
Date
Purpose
DRAFT 1 (31.3.03)
g20 Cellular Engine
Module Description
CONTENTS
REVISION HISTORY ................................................................................................................................................................ii
PREFACE
1.1 SCOPE OF THIS MANUAL .................................................................................................................................................1
1.2 WHO SHOULD USE THIS MANUAL.................................................................................................................................1
1.3 APPLICABLE DOCUMENTS ..............................................................................................................................................1
1.3.1 Documents...................................................................................................................................................................1
1.3.2 Standards .....................................................................................................................................................................1
1.4 HOW THIS MANUAL IS ORGANIZED..............................................................................................................................1
INTRODUCTION
2.1 GENERAL DESCRIPTION...................................................................................................................................................3
2.2 TERMS AND ABBREVIATIONS ........................................................................................................................................3
2.3 PRODUCT SPECIFICATIONS .............................................................................................................................................5
2.4 MODELS DESCRIPTION .....................................................................................................................................................7
2.5 REGULATORY APPROVALS .............................................................................................................................................7
2.6 REGULATORY STATEMENT.............................................................................................................................................7
2.7 SAFETY PRECAUTIONS.....................................................................................................................................................7
2.7.1 User Operation ............................................................................................................................................................7
2.7.2 Antenna Installation ....................................................................................................................................................8
HARDWARE DESCRIPTION
3.1 G20 BLOCK DIAGRAM DESCRIPTION AND OPERATION OVERVIEW ....................................................................9
3.1.1 g20 Block Diagram .....................................................................................................................................................9
3.1.2 Basic RS232 and Analog Audio Connectivity..........................................................................................................11
3.1.3 Basic RS232 and Digital Audio Connectivity...........................................................................................................11
3.1.4 Additional Recommended Connections....................................................................................................................12
3.1.5 G20 for Handset Configuration.................................................................................................................................13
3.2 POWER SUPPLY AND CURRENT CONSUMPTION .....................................................................................................13
3.2.1 Power Supply Design ................................................................................................................................................13
3.2.2 G20 Current Consumption ........................................................................................................................................14
3.2.3 Turning the Unit On/Off ...........................................................................................................................................15
© Motorola Inc., 2003
March 2003
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3.2.4 Sleep Mode Options ................................................................................................................................................. 16
3.3 COMMUNICATION INTERFACES.................................................................................................................................. 18
3.3.1 RS232 ....................................................................................................................................................................... 18
3.3.2 USB .......................................................................................................................................................................... 20
3.3.3 SIM ........................................................................................................................................................................... 21
3.3.4 SPI ............................................................................................................................................................................ 22
3.3.5 Unique g20 Interfaces............................................................................................................................................... 22
3.4 AUDIO INTERFACES........................................................................................................................................................ 23
3.4.1 Analog Audio Interfaces........................................................................................................................................... 23
3.4.2 Digital Audio Interface ............................................................................................................................................. 27
3.5 ANTENNA........................................................................................................................................................................... 28
3.5.1 Antenna Performance Recommendations ................................................................................................................ 28
3.6 CHARGER INTERFACE.................................................................................................................................................... 28
3.7 DISPLAY INTERFACE ...................................................................................................................................................... 28
3.8 ESD PROTECTION ............................................................................................................................................................ 29
CONNECTOR PIN
ASSIGNMENTS
4.1 CONNECTORS ................................................................................................................................................................... 31
4.2 PIN ASSIGNMENTS .......................................................................................................................................................... 31
MECHANICAL DESCRIPTION
5.1 MECHANICAL DETAILS.................................................................................................................................................. 37
SERVICE SUPPORT
6.1 CUSTOMER ASSISTANCE............................................................................................................................................... 39
6.2 TESTING A STANDALONE UNIT................................................................................................................................... 39
6.3 TROUBLESHOOTING ....................................................................................................................................................... 39
6.4 PROGRAMMING ............................................................................................................................................................... 39
INDEX
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LIST OF FIGURES
Figure 1. g20 Block Diagram .......................................................................................................................................................9
Figure 2. Basic RS232 and Analog Audio Connectivity ............................................................................................................11
Figure 3. Basic RS232 and Digital Audio Connectivity.............................................................................................................12
Figure 4. Additional g20 Connectivity .......................................................................................................................................12
Figure 5. g20 for Handset Configuration....................................................................................................................................13
Figure 6. VCC Signal During TX Periods ..................................................................................................................................14
Figure 7. On/Off Signal Timing Diagram ..................................................................................................................................15
Figure 8. CTS Sleep Mode Timing.............................................................................................................................................16
Figure 9. DCE/DTE Connectivity ..............................................................................................................................................17
Figure 10. Waking Up the g20 when the DTE Wants to Send Data ..........................................................................................17
Figure 11. Waking Up the DTE when the g20 Wants to Send Data ..........................................................................................18
Figure 12. g20 RS232 Interface ..................................................................................................................................................18
Figure 13. RS232 Connection.....................................................................................................................................................19
Figure 14. g20 USB Connection for g20 Models with a USB Driver ........................................................................................20
Figure 15. g20 USB Connection for g20 Models without a USB Driver ...................................................................................21
Figure 16. g20 SIM Connection .................................................................................................................................................21
Figure 17. TX_EN Transmission................................................................................................................................................22
Figure 18. Antenna-detect Circuit ..............................................................................................................................................23
Figure 19. GPRS-detect Coverage Indication.............................................................................................................................23
Figure 20. SPKR_N Output Configuration.................................................................................................................................24
Figure 21. Mechanical Mounting Requirements ........................................................................................................................37
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LIST OF TABLES
Table 1. Terms and Abbreviations ............................................................................................................................................... 3
Table 2. Product Specifications.................................................................................................................................................... 5
Table 3. g20 Models..................................................................................................................................................................... 7
Table 4. g20 Current Consumption ............................................................................................................................................ 14
Table 5. SPI Pinout..................................................................................................................................................................... 22
Table 6. SPKR_N Output when g20 Set to Maximum Volume Level and Headset Interrupt is Low....................................... 24
Table 7. SPKR_N Output when g20 Set to Maximum Volume Level and Headset Interrupt is Not Low................................ 25
Table 8. SPKR_N Output when a 500mV RMS Signal is Transmitted..................................................................................... 25
Table 9. SPKR_N Output when g20 is in Handset Mode.......................................................................................................... 26
Table 10. SPKR_N Output when g20 is in Headset Mode ........................................................................................................ 26
Table 11. Alert Transducer Levels for the ALERT_P Signal .................................................................................................... 27
Table 12. Antenna Performance Recommendations .................................................................................................................. 28
Table 13. g20 Interface Connector Pin Assignments ................................................................................................................. 31
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1. PREFACE
1.1
SCOPE OF THIS MANUAL
This manual introduces the g20 embedded module and describes the technical details required by the data terminal equipment
(DTE) team to successfully integrate the Motorola g20 cellular engine into an original equipment manufacturer (OEM) wireless
host device.
We at Motorola want to make this guide as helpful as possible. Keep us informed of your comments and suggestions for
improvements.
You can reach us by Email at: GSM support-BSH015@email.mot.com.
1.2
WHO SHOULD USE THIS MANUAL
This manual is intended for all members of the DTE OEM integration team who are responsible for integrating the c18 module
into the host OEM device, including representatives from hardware, software and RF engineering disciplines.
1.3
APPLICABLE DOCUMENTS
PLEASE PROVIDE DETAILS FOR THIS SECTION.
1.3.1
Documents
g20 Developer’s Kit - 9808901C67-O
g20 AT Commands - 9808901C68-O
1.3.2
Standards
PLEASE PROVIDE DETAILS FOR THIS SECTION.
1.4
HOW THIS MANUAL IS ORGANIZED
This manual contains the following chapters:
• Chapter 1 contains this Preface.
• Chapter 2 introduces the g20 unit and provides important safety instructions.
• Chapter 3 provides a detailed hardware description of the blocks and components comprising the g20.
• Chapter 4 describes the pin assignments for g20 connectors.
• Chapter 5 describes mechanical requirements for the g20 unit.
• Chapter 6 provides contact information for Motorola Service Support and Customer Assistance, as well as valuable
troubleshooting and programming information.
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Preface
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2. INTRODUCTION
2.1
GENERAL DESCRIPTION
The g20 is Motorola’s newest family of embedded cellular products. Motorola continues its tradition of excellence by
introducing this new cellular engine family for GSM/GPRS communications, consisting of the d10, the d15 and the g18.
The new module is similar to a condensed cellular phone core, and can be integrated in any system or product that needs to
transfer voice or data information. Thus, it significantly enhances the system’s capabilities, transforming it from a standalone,
isolated product to a powerful component connected to communication nets.
The new g20 is extremely small in dimensions, yet packed with a host of highly-advanced features designed to facilitate fast
and easy integration with OEM user products. It significantly shortens the development process for OEM developers, thanks to
its wide range of built-in applications, and minimizes the product’s time to market.
The g20 module is ideally suited for the automotive, telemetry, security, insurance and EPOS industries, for delivery and
handheld terminals, and for PDA markets.
2.2
TERMS AND ABBREVIATIONS
This section provides definitions for terms and acronyms used in this document.
Table 1. Terms and Abbreviations
Acronym/Term
Definition/Description
AOC
Automatic Output Control
BABT
British Approval Board - Telecommunications
CSD
Circuit-switched Data
DCE
Data Communication Equipment (such as modems)
DCS
Digital Cellular System (GSM in the 1800MHz band)
DOC
Department of Communications (Canada)
DSP
Digital Signal Processor
DTE
Data Terminal Equipment (such as terminals, PCs and so on)
DTMF
Dual-Tone Multi-Frequency
EGSM
Extended Global System for Mobile Communications
EIRP
Effective Isotropic Radiated Power
EMC
WHAT DOES THIS STAND FOR?
EOTD
Enhanced Observed Time Difference
EPOS
Electronic Point of Sale
ERP
Effective Radiated Power
ESD
Electrostatic Discharge
FCC
Federal Communications Commission (U.S.)
FTA
Foreign Telecommunication Administration
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Table 1. Terms and Abbreviations (Continued)
Acronym/Term
Definition/Description
GCF
WHAT DOES THIS STAND FOR?
GPIO
General Purpose Input/Output
GPRS
General Packet Radio Service
GSM
Global System for Mobile Communications
IC
Integrated Circuit
LNA
Low-noise Amplifier
MMCX
Multimedia Communications Exchange
MO
Mobile Originated
MT
Mobile Terminated
OEM
Original Equipment Manufacturer
PCB
Printed Circuit Board
PCM
Pulse Code Modulation
PCS
Personal Communication System (also known as CDMA 1900)
PDA
Personal Data Assistant
PDU
Packet Data Unit
PLL
Phase-locked Loop
PTCRB
PCS-1900 Type Certification Review Board (GSM North America)
R&TTE
Radio and Telecommunications Terminal Equipment
RMS
Root Mean Square
RTS
Request To Send
SAR
Segmentation and Reassembly
SIM
Subscriber Identity Module
SMS
Short Message Service
SPI
Serial Peripheral Interface
TDMA
Time Division Multiple Access
UART
Universal Asynchronous Receiver Transmitter
USB
Universal Serial Bus
USSD
Unstructured Supplementary Services Data
VCC
Voltage Common Collector
VSWR
Voltage Standing Wave Ratio
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2.3
PRODUCT SPECIFICATIONS
Table 2. Product Specifications
Product Features
Operating systems:
EGSM: 900/1800 MHz
GSM: 850/1900 MHz
Physical Characteristics
Size:
Size: 24.4 x 48.2 x 6.0 mm
Mounting:
Two 2.2 mm holes
Weight:
11.9 grams
Environmental
Operational temperature:
-20°C +60°C
Functional temperature:
-20°C +70°C
Storage temperature:
-40°C +85°C
Performance
Operating voltage:
Voltage: 3.0 - 4.2 V
Current consumption:
< 2.5 mA @ DRX9 (Idle mode)
Tx power:
• 0.6 W, 850 MHz
• 2 W, 900 MHz
• 1 W, 1800/1900 MHz
Interfaces
Connectors:
• Single 70-pin, board-to-board
• RF MMCX
SIM Card:
• Local SIM connectivity
• 32K SIM
• 1.8/3.0 V
Serial:
• RS232:
• BR from 300 bps to 115 Kbps
• Auto BR from 300 bps to 115 Kbps
• USB
• 12 Mbps USB specifications, Rev. 1.1
Data Features
GPRS:
•
•
•
•
Multi-slot class 8 (4 down; 1 up)
Max BR 85.6 Kbps
Class B GSM 07.10 multiplexing protocol
Coding scheme CS1-CS4
CSD:
Max BR 14.4 Kbps
SMS:
• MO/MT Text and PDU modes
• Cell broadcast
FAX Class 1
Voice Features
Telephony
Digital audio
Differential analog audio lines
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Introduction
Table 2. Product Specifications (Continued)
Voice Features (Continued)
Vocoders EFR/ER/FR/AMR
DTMF support
Audio control: echo cancellation, noise suppression, side tone and gain control
GSM Supplementary Service
USSD Phase II
Call forwarding
Call hold, waiting and multiparty
Call diverting
Missed-call indicator
AOC
Call barring
Character Set
UTF8
UCS2
Control/Status Indicators
GPRS coverage
Wakeup
Antenna detect
TX enable
Reset
Entertainment mute
Features over RS232
Embedded TCP/IP stack
STK Class II
User Application
Application Programming Interface (API)
12 GPIO lines
2 A/D lines
Emergency and Location
FCC E911 Phase II Location Mandate using EOTD
AT Command Set
GSM 07.05
GSM 07.07
Motorola proprietary AT commands
Accessories
Firmware data loader
Data logger
Developer Kit
Specifications are subject to change without prior notice.
Note
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Introduction
2.4
MODELS DESCRIPTION
Table 3 lists the available g20 models.
Table 3. g20 Models
Model
2.5
Operating Bands
Interface Connectors
Serial Interface
F3001
GSM 850/1900
• 70-pin 0.5 mm pitch
• MMCX RF connector
RS232
F3002
EGSM 900/1800
• 70-pin 0.5 mm pitch
• MMCX RF connector
RS232
F3003
GSM 850/1900
• 70-pin 0.5 mm pitch
• MMCX RF connector
USB
F3004
EGSM 900/1800
• 70-pin 0.5 mm pitch
• MMCX RF connector
USB
REGULATORY APPROVALS
The following regulatory approvals apply for the g20 module:
• FTA, FCC, DOC, PTCRB
• R&TTE
• GCF
• EMC
• BABT
• QS9000 manufacturing
2.6
REGULATORY STATEMENT
WE NEED SOURCE MATERIAL FOR THIS SECTION.
2.7
2.7.1
SAFETY PRECAUTIONS
User Operation
Do not operate your telephone when a person is within 8 inches (20 centimeters) of the antenna. A person or object within 8
inches (20 centimeters) of the antenna could impair call quality and may cause the phone to operate at a higher power level than
necessary.
IMPORTANT: The telephone must be installed in a manner that provides a minimum separation distance of
20 cm or more between the antenna and persons to satisfy FCC RF exposure requirements for mobile transmitting devices.
IMPORTANT: To comply with the FCC RF exposure limits and satisfy the categorical exclusion requirements for mobile
transmitters, the following requirements must be met:
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2.7.2
Antenna Installation
• A minimum separation distance of 20 cm needs to be maintained between the antenna and all persons, otherwise a SAR test
will be required.
• The transmitter effective radiated power must be less than 1.5 Watts ERP (2.45 Watts or 33.9 dBm EIRP). This requires that
the combination of antenna gain and feed line loss does not exceed 11 dBi.
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3. HARDWARE DESCRIPTION
3.1
G20 BLOCK DIAGRAM DESCRIPTION AND OPERATION OVERVIEW
This chapter describes the basic blocks comprising the g20 module and the connectivity options for the module.
3.1.1
g20 Block Diagram
Figure 1 shows a block diagram for the g20 module:
Ant
Serial
USB
Transmitter
IC
Control
Driver
Main
Processor
DSP
PCM
SIM
GPIO
SPI
ADC
Receiver
IC
Interface Connector
Memories
Audio
Power & Audio
Management IC
Charger
Power
On/Off / IGN
G20
Figure 1. g20 Block Diagram
The g20 consists of the following blocks:
• Power and Audio Management IC: This block is responsible for the power on/off process, analog audio drivers, internal
regulators, realtime clock activities, and the battery charging process. When an On command is received, this IC wakes up
the internal regulators and controls the reset process. This activity turns the unit on. When an Off command is received, this
IC sends the request to the main processor, which in turn shuts down the unit in an orderly fashion. During shutdown, the
unit is disconnected from the network, all tasks are terminated and the regulators are shut down. The on/off inputs (On/Off
and Ignition) are always on, even when the unit is off.
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Hardware Description
• Main Processor and DSP: This block is responsible for all the main tasks in the unit. This block contains the following
components:
• Main processor
• DSP for controlling speech options
• UART
• USB block
• Digital audio driver
• SIM card
• Two SPI buses (one internal and one externally accessible)
• Main clock (26 MHz)
• Address/data buses
• RF PLL
• Controller to the RF ICs, which is the heart of the unit
This module provides the following connectivity:
• Address/data bus
• UART to the user connector
• USB via an optional USB driver to the user connector
• Digital audio (PCM) to the user connector
• SIM card interface
• SPI to the user connector
• SPI to control the RF ICs
• Control signals to the power amplifier IC
• Handshake with the Power and Audio Management IC
• General I/O to the user connector
• Receiver Block: This block is an RF block that contains all the receiver channels. It contains the following components:
• Front filters
• LNAs
• Mixers
• VCOs
• I/Q outputs
• Control signals
• Transmitter Block: This is an RF block that contains all the transmitter channels. It contains the following components:
• Power amplifiers
• Power control loop
• Antenna switch
• Harmonic filter
• Input buffers
• Control signals
• Antenna connection
10
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Hardware Description
3.1.2
Basic RS232 and Analog Audio Connectivity
The following basic g20 connectivity requirements apply for UART (RS232) and analog audio connections (see Figure 2 for
reference):
• The RS232 is connected via eight pins to the g20.
• The SIM card is connected via five pins to the SIM driver of the g20.
• The microphone is connected via two pins to the g20 (Mic and Mic Ground).
• The Speaker is connected via two differential lines to the g20.
• The power supply is connected via eight pins (four VCC and four Ground) to the g20.
• The On/Off or Ignition pin is connected.
Ant
DTE
UART
USB
Memories
Transmitter
IC
Control
Main
Processor
DSP
Driver
PCM
SIM
GPIO
SPI
ADC
Receiver
IC
Interface Connector
Serial
SIM
Socket
Mic
SPKR
Audio
Power & Audio
Management IC
Charger
Power
Power
Supply
On/Off - IGN
G20
On/Off or
Ignition
Figure 2. Basic RS232 and Analog Audio Connectivity
3.1.3
Basic RS232 and Digital Audio Connectivity
The following basic g20 connectivity requirements apply for UART (RS232) and digital audio connections (see Figure 3 for
reference):
• The RS232 is connected via eight pins to the g20.
• The SIM card socket is connected via five pins to the SIM driver of the g20.
• The DTE DSP is connected via five pins to the g20 (PCM).
• The power supply is connected via eight pins (four VCC and four Ground) to the g20.
• The On/Off or Ignition pin is connected.
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Hardware Description
Ant
DTE
UART
USB
Memories
Transmitter
IC
Control
Driver
Main
Processor
DSP
PCM
SIM
GPIO
SPI
ADC
Receiver
IC
Interface Connector
Serial
DTE
DSP
SIM
Socket
Audio
Power & Audio
Management IC
Charger
Power
Supply
Power
On/Off / IGN
G20
On/Off or IGN
Figure 3. Basic RS232 and Digital Audio Connectivity
3.1.4
Additional Recommended Connections
Additional g20 connectivity options are described below (see Figure 4 for reference):
• A USB connector that is connected via three lines to the g20. In this case, when USB is used, the DTE UART should be in
tri-state (high impedance).
• A USB connector that is connected via a USB driver to the g20 (in g20 models without a USB driver). When USB is used,
the DTE UART should be in tri-state (high impedance).
• An SPI block that is connected via four pins to the g20 (for debug accessibility).
Ant
USB
Driver
USB
Memories
Transmitter
IC
Control
Main
Processor
DSP
Driver
PCM
SIM
GPIO
SPI
Receiver
IC
ADC
Power & Audio
Management IC
Interface Connector
Serial
USB
Connector
SPI
Device
Audio
Charger
Power
G20
Figure 4. Additional g20 Connectivity
12
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Hardware Description
3.1.5
G20 for Handset Configuration
g20 connectivity when using the g20 as a cellular phone engine is described below (see Figure 5 for reference):
• The display is connected via five pins to the g20.
• The keypad is connected via eight pins to the g20.
• The SIM card socket is connected via five pins to the g20 SIM driver.
• The charger is connected via six pins (Interface to National LM3652) to the g20.
• The microphone is connected via two pins (Mic and Mic Ground) to the g20.
• The speaker is connected via two differential lines to the g20.
• The alert device is connected via two differential lines to the g20.
• The vibrator is connected via one pin to the g20.
• The battery is connected to the charger, and the charger is connected to the VCC and Ground pins.
Ant
Display
Control
Transmitter
IC
Main
Processor
DSP
Display
Key Pad
SIM
Vibrator
Alert
Receiver
IC
Power & Audio
Management IC
Audio
Key Pad
Interface Connector
Memories
Charger
SIM
Socket
Vibrator
Alert
Mic
SPKR
Charger
Power
G20
Battery
Figure 5. g20 for Handset Configuration
3.2
POWER SUPPLY AND CURRENT CONSUMPTION
This section describes the following power-related considerations for the g20:
• Power supply design
• g20 current consumption
• Turning the unit on/off
• Sleep mode options
3.2.1
Power Supply Design
The following power supply design considerations apply to the g20:
• The g20 is designed to operate between 3.0 V to 4.2 V on the g20 input (after all losses). In order to reduce battery power
consumption, it is important to verify power supply line and regulator losses in the PCB.
• The g20 is a GSM/GPRS phone that transmits in 0.5 ms pulses every 4.6 ms. The peak current is approximately 2.0 A.
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• When the power supply is lower than 2.85 V, the g20 software determines that the battery is low and disconnects the unit.
• When the voltage is greater than 4.25 V, the g20 software detects an over voltage condition and does not allow the unit to
establish a call.
• The VCC line typically drops during TX periods.
TX
Transmit
Periods
TX
TX
VCC
Figure 6. VCC Signal During TX Periods
To minimize the ∆, it is recommended to use lines that are as short as possible, and to place a 1000uF capacitor (or the maximum
possible) in the g20 VCC input. (When a battery is used, there is no need for a large capacitor.)
It is recommended to keep the ∆ less than 0.3 V.
The power supply should be able to drive at least 2.5 A.
Note
3.2.1.1
Power Supply RF Filtering
It is recommended to add RF filtering to the DC lines.
Use 100nF, 39pF, 22pF or 8.2pF capacitors in parallel to the power supply lines (close to the g20 connector). MUST ALL
THESE CAPACITORS BE USED IN PARALLEL? OR SOME COMBINATION?
3.2.2
G20 Current Consumption
In order to design the power supply correctly and to calculate the battery life, you should take into account the current
consumption of the g20 when operating in different modes.
Table 4. g20 Current Consumption
Mode
Current Consumption (mA RMS)
g20 in Sleep mode (camped and
Sleep-mode enabled)
< 2.5 mA, RMS @ DRX9, Typical 2.2 mA
< 4.5 mA, RMS @ DRX2, Typical 3.5 mA
g20 during search time
< 40 mA, RMS, Typical 25 mA, RMS
g20 off
< 100 uA – Typical 25 uA
g20 during a call
GSM 900
14
@ Power level #5 < 350 mA, Typical 270 mA
@ Power level #10, Typical 160 mA
@ Power level #19, Typical 135 mA
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Table 4. g20 Current Consumption (Continued)
Mode
Current Consumption (mA RMS)
GSM 850
@ Power level #7 < 250 mA, Typical 185 mA
@ Power level #10, Typical 160 mA
@ Power level #19, Typical 135 mA
DCS 1800
@ Power level #0 < 300 mA, Typical 220 mA
@ Power level #10, Typical 160 mA
@ Power level #19, Typical 135 mA
PCS 1900
@ Power level #5 < 300 mA, Typical 240 mA
@ Power level #10, Typical 160 mA
@ Power level #19, Typical 135 mA
DRX2/9 is the rate used by the base station to query the mobile station. The network operator sets this parameter.
Note
3.2.3
Turning the Unit On/Off
Two different mechanisms are available to turn the g20 on and off:
• On/Off signal (Pin 53)
• Ignition line (Pin 51)
3.2.3.1
On/Off Signal
After power is applied to the g20, the on/off signal is pulled high to the VCC by a 200kΩ resistor.
To turn the g20 on, the on/off signal should be pulled low for a minimum of 700 ms.
After the g20 is turned on, the line should be pulled low for a minimum of 1.1 seconds to turn it off. The unit can be turned off
only if at least seven seconds have elapsed since turning it on.
Figure 7 shows the timing diagram for the on/off signal.
T1
T2
T3
Figure 7. On/Off Signal Timing Diagram
In Figure 7, the following timing requirements apply:
• T1 minimum = 0.7 seconds.
• T2 minimum = 7 seconds.
• T3 minimum = 1.1 seconds.
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3.2.3.2
Ignition Line
When the g20 ignition line is held at a high level, the g20 is turned on. When this line is pulled low, the g20 is turned off. In
order to protect the line from voltage bounces, the g20 is tuned off only if the line is held low for at least 500 ms.
The high input to the ignition line must be greater than 2.75 V. The line can tolerate up to 40 V.
After the g20 is turned on, the application should wait for DSR before sending data to the g20. The DSR becomes active low
eight seconds after the start of T1, or after the ignition line is pulled high. DSR is only valid with UART, and is not valid with
USB.
3.2.4
Sleep Mode Options
This section describes how the g20 can be awakened by the DTE and vice-versa.
The DCE (g20) and the DTE can incorporate a sleep mechanism in their application in order to conserve battery life.
Sleep mode enables the g20 to be awakened when the DTE wants to communicate with it. Conversely, it also enables the DTE
to be awakened by the g20 when the g20 wants to communicate with it.
3.2.4.1
General
• The g20 Sleep Mode option can be enabled or disabled using ATS24.
• Sleep mode is activated by sending ATS24 = n, where n = 1, 2, 3 or 4 seconds. (To disable Sleep mode, send ATS24=0.)
• The g20 drops the CTS (h/w Flow Control) when it is in Sleep mode.
• The g20 does not enter Sleep mode when data is present on TXD or RXD lines.
• At the end of the TXD (meaning, the TXD buffer is empty), the g20 waits n seconds (as defined in ATS24 = n) before entering Sleep mode.
• The DTE uses CTS to send data only when the g20 is awake. The DTE waits when the g20 is in Sleep mode.
• The DTE should drop RTS during the sleep period in order to prevent the loss of data sent by the g20.
Figure 8. CTS Sleep Mode Timing
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Hardware Description
3.2.4.2
DCE/DTE Connectivity
Figure 9 shows DCE/DTE connectivity:
Figure 9. DCE/DTE Connectivity
Waking Up the DCE:
The following apply when waking up the DCE:
• The Wake-up In line is used to awaken the g20. This input is routed into an Interrupt in the g20.
• Whenever the Wake-up In line is at logic “low”, the g20 remains in an awake state.
• When the DTE needs to send data, it should activate this line, wait 30 ms (the wake time required for the g20), and then start
sending the data.
• While the DTE is sending data, the wake-up line should remain low, so that the g20 does not enter Sleep mode.
DTE TXD
Wake up
In line
30 ms
30 ms
30 ms
Figure 10. Waking Up the g20 when the DTE Wants to Send Data
Waking Up the DTE:
The following apply when waking up the DTE:
• The g20 uses the Wake-up Out line to indicate to the DTE that data is present.
• The DTE should not enter Sleep mode when the Wake-up Out line is low.
• When the g20 has data to send to the DTE, it drops the Wake-up Out line to low.
• The g20 will send the Wake-up Out line #ms to low, as indicated by S10x in Figure 11.
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• While the g20 is sending data, the Wake-up Out line remains low.
• After the sending of data is completed, the g20 brings the Wake-up Out line to high.
• The DTE should keep RTS off during this sleep period in order to avoid sending data when it is not ready.
RXD
Wake up Out
line
S10x ms
S10x ms
S10x ms
Figure 11. Waking Up the DTE when the g20 Wants to Send Data
3.3
COMMUNICATION INTERFACES
This section describes the following four interfaces that are available in the g20:
• RS232
• USB
• SIM
• SPI
3.3.1
RS232
The following apply when using
the RS2332 interface of the g20:
• The g20 supports full hardware flow control (9 pins),
software flow control (Xon/
Xoff) and non-flow control.
• The g20 UART is connected directly to the interface connector.
• The g20 is a DCE device. Applicable line terminology is shown in Figure 12.
Figure 12. g20 RS232 Interface
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Hardware Description
3.3.1.1
RS232 Levels
RS232 levels are as follows:
• Vih = 1.95 V minimum, 3.0 V maximum
• Vil = 0.8 V maximum
• Voh = 2.56 V minimum @ 100 uA
• Vol = 0.2 V maximum @ 100 uA
A buffer is required whenever DTE levels do not match g20 levels.
Note
3.3.1.2
RS232 Connection
Figure 13 shows an RS232 connection diagram:
G20
DTE
TXD
RXD
21
11
RTS
G20 Main
Processor
CTS
DTR
DSR
DCD
RI
15
19
13
17
23
3 state
D+
USB
Driver
USB
Detect
DUSB VBUS
12
14
10
USB
connector
Figure 13. RS232 Connection
The following apply for g20 RS232 connections:
• The g20 can use both UART and USB connectors, but cannot use them both simultaneously.
• When USB is detected (by sensing the USB VBUS signal), the UART is disconnected from the g20 main processor pins and
USB functionality is added instead.
• The DTE should unload the RS232 lines when USB is used in order for the USB to function properly.
• RS232 signals are routed directly from the main processor to the connector.
In g20 models without a USB driver (F3001and F3002 models), RS232 signals can be used to connect an external
USB driver.
Note
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Hardware Description
3.3.2
USB
The following apply for g20 USB connections:
• The g20 can use a USB port to communicate with a DTE device.
• The USB port is also used to load software into the g20. It is recommended to include connectivity to this port in the user
application.
• The g20 supports USB1.1 at a baud rate of 12 Mbps.
• The g20 supports two basic types, one with a USB driver (models F3003 and F3004), and one with the USB driver removed
(models F3001 and F3002).
3.3.2.1
USB Connection
Figure 14 shows g20 connection for g20 models with a USB driver:
G20
DTE
TXD
RXD
RTS
G20 Main
Processor
CTS
DTR
DSR
DCD
RI
21
11
15
19
13
17
23
3 state
D+
USB
Detect
USB
Driver
DUSB VBUS
12
14
10
USB
connector
Figure 14. g20 USB Connection for g20 Models with a USB Driver
As shown in Figure 14, the g20 USB is connected via three lines to the USB connector in the user application: D+, D- and USB
VBUS. When USB VBUS is applied, the g20 detects it and switches the main processor to USB mode.
The DTE UART loads the USB driver/main processor lines. Therefore, the UART should be kept in tri-state.
Note
20
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Hardware Description
Figure 15 shows g20 USB connection for g20 models without a USB driver, using an external USB driver connection. The
circuit shown in this figure can be used by the user application in cases where a USB driver is needed.
Figure 15. g20 USB Connection for g20 Models without a USB Driver
3.3.3
SIM
The g20 includes a SIM card driver, however, it does not contain a SIM socket. SIM signals are routed to the interface connector
and include all the functionality required for SIM card operation.
3.3.3.1
SIM Connection
Figure 16 shows a g20 SIM connection:
*,QWHUIDFH
&RQQHFWRU
6,09&&
6,05HVHW
48
44
6,0&ORFN
SIM
Driver

6,03'

1-4
1uF
6.8V Zeners
with low
Capacitance
For ESD protection
6,0,B2
G20
6,0933 1&
*5281'
Figure 16. g20 SIM Connection
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Hardware Description
The following apply for g20 SIM connections:
• The g20 passes all SIM ETSI tests when an external socket is connected to the g20 with lines shorter than 10 cm.
• Longer connections require SIM testing to be performed in the user application.
• The g20 can work with 1.8 V or 3 V SIM cards.
• The g20 provides ESD protection for the SIM lines (6.8V Zener diodes with low capacitance), and for 1uF capacitors to the
SIM VCC.
• The SIM_PD (SIM Present Detect) signal is active when it is pulled low.
3.3.4
SPI
The SPI is a standard microprocessor bus used as a g20 debugging port. This port activates a debug option that enables logs to
be taken from the g20 while it is operating. It is recommended that this bus be accessible in the user application. In the g20
Developer’s Kit, the SPI is driven to an SPI/RS232 interface. The SPI is then converted and uses the RS232 port for debugging.
In the g20 Developer’s Kit, the SPI bus is converted to an RS232 protocol using a special interface circuit. It then uses the
standard RS232 port for debugging. Table 5 shows the pins available on the SPI bus.
3.3.4.1
SPI Connection
Table 5. SPI Pinout
Pin #
3.3.5
Name
Function
Input/Output
70
SPI_CS
SPI chip-select
Output
62
SPI_IRQ
SPI Interrupt
Input
64
SPI_DIN
SPI MISO input
Input
68
SPI_DOUT
SPI MOSI output
Output
66
SPI_CLK
SPI clock
Output
Unique g20 Interfaces
The g20 features certain unique functions (pins) that may be required by selected user applications, such as TX_EN, Antenna
Detect, GPRS Detect and Entertainment Mute. Each of these functions is described in the sections that follow.
3.3.5.1
Transmit Enable
This pin indicates when the g20 is transmitting RF in the antenna.
Figure 17. TX_EN Transmission
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Hardware Description
3.3.5.2
Antenna Detect
This pin indicates whether or not the antenna is inserted. This option was requested by a specific customer and was prepared
specifically for their board layout. Thus, this option is not supported by the basic g20 models.
The antenna-detect circuit detects whether the impedance of the antenna is 100 KΩ or lower. The antenna must have a resistance
to ground of less than 100 KΩ. in order to be detected.
Figure 18. Antenna-detect Circuit
3.3.5.3
GPRS-detect Coverage Indication
This pin indicates whether or not the g20 is located in an area with GPRS network coverage. This pin can be used to indicate
the GPRS coverage status before GPRS section activation has occurred, or before a switch to circuit-switched data is made.
No GPRS Coverage
GPRS Coverage
Figure 19. GPRS-detect Coverage Indication
3.3.5.4
Entertainment Mute
This pin is reserved for future use. It will be dedicated to automotive applications in which there is a need to mute the entertainment radio when there is a cellular call.
3.4
AUDIO INTERFACES
The g20 has an analog audio interface and a digital audio interface. Both of these interfaces are described in the sections that
follow.
3.4.1
Analog Audio Interfaces
The g20 supports microphone input, headset microphone input, differential speaker output, and a differential alert speaker.
3.4.1.1
Analog Input
The g20 has two analog inputs that are referenced to the microphone ground (pin 59):
• Headset microphone: Pin 57 is the headset microphone input. Input to this line can be directly from a headset microphone.
In order for the headset microphone to be active, the headset interrupt signal (pin 55) must be pulled low. The maximum
input to the g20 headset microphone before there is a distortion of the signal in the network is 12 mV RMS.
• Hands-free microphone: Pin 61 is the microphone input to the g20. The microphone is active when the headset interrupt
signal is not pulled low. The maximum input to the g20 microphone before there is a distortion of the signal in the network
is 32 mV RMS.
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3.4.1.2
Analog Output
The g20 has a differential speaker output and an alert output:
• Speaker output: When headset mode is used, the headset speaker should be connected to the SPKR_N signal of the g20.
When a differential amplifier is used, both lines should be connected. An 8-ohm speaker can be connected directly to the
speaker lines.
• Alert: The g20 supports a direct connection for an alert transducer, in order to build a handset from the g20. All the sounds
that are transmitted to the alert can be routed to the speaker using the appropriate AT command.
Table 6 shows the SPKR_N output in headset mode for different network signal levels when the g20 is set to the maximum
volume level and the headset interrupt is pulled low.
Table 6. SPKR_N Output when g20 Set to Maximum Volume Level and Headset Interrupt is Low
dBm0
mV RMS
SPKR_N
3.14
1111.9
94
774.6
67
-5
435.6
38
-10
244.9
22
-15.5
130
12.5
-16
122.8
12
-17
109.4
11
-20
77.5
8.5
-25
43.6
6.5
-30
24.5
5.5
3000
250
The measurements shown in Table 6 apply in the following configuration:
Figure 20. SPKR_N Output Configuration
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Hardware Description
Table 7 shows the output of the SPKR_N signal for different network signal levels when the g20 is set at the maximum volume
level and the headset interrupt is not pulled low.
Table 7. SPKR_N Output when g20 Set to Maximum Volume Level and Headset Interrupt is Not Low
dBm0
mV RMS
SPKR_N
3.14
1111.9
335
774.6
242
-5
435.6
134
-10
244.9
76
-15.5
130
41
-16
122.8
39
-17
109.4
34
-20
77.5
24
-25
43.6
14
-30
24.5
max
2900
900
Table 8 shows the SPKR_N output at different volume levels, when a 500mV RMS signal is transmitted from the network.
Table 8. SPKR_N Output when a 500mV RMS Signal is Transmitted
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Handset Volume
SPKR_N
0 (lowest gain)
15
20
28
39
55
78
110
7 (highest gain)
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DRAFT 1 (31.3.03)
Hardware Description
Table 9 shows the typical keypad tone levels generated by the g20. These measurements taken with the g20 in handset mode
(meaning the headset-detect signal is not pulled low).
Table 9. SPKR_N Output when g20 is in Handset Mode
Handset Volume
SPKR_N
122
172
244
342
482
678
954
Table 10 shows the keypad tone levels generated by the g20 when in headset mode (meaning the handset-detect signal is pulled
low).
Table 10. SPKR_N Output when g20 is in Headset Mode
26
Handset Volume
SPKR_N
5.5
7.5
10.5
14
19.5
27.5
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Hardware Description
Table 11 shows the levels of the alert transducer measured on the ALERT_P signal at different ring volumes.
Table 11. Alert Transducer Levels for the ALERT_P Signal
3.4.1.3
Handset Volume
ALRT_P
107
153
206
305
424
600
850
1200
Audio Circuit Design Considerations
In order to design an audio circuit that produces clear audio, without being affected by the GSM transmission, the following
guidelines should be considered when designing the circuit:
• The audio input to the g20 should be referenced to the MIC_GND line of the g20.
• The microphone bias of the g20 for both the microphone and headset is 2.2 V. If a microphone with a different voltage is
used, the bias should be as clean as possible, and referenced to MIC_GND. Because most GSM buzz (217Hz TDMA noise)
is generated from the microphone path, if a different bias is created, it should be filtered to supply DC only.
• The MIC_GND and GND are connected inside the g20 and should not be connected to the application board.
• Keep the lines of the microphone inputs as short as possible. To filter the lines from RF emission, 39pF capacitors can be
used.
• The g20 GND should be connected on all four pins, with two mounting screws to the application ground.
• If possible, the RF cable ground from the g20 should be connected to the GND of the g20.
• The digital lines of the application should never be referenced to the MIC_GND.
3.4.2
Digital Audio Interface
The g20 digital audio interface is a full-duplex SAP (serial audio port) comprised of four signals:
• PCM_FS: This pin is used for frame sync output provided by the g20.
• PCM_CLK: This pin is used for the clock output provided by the g20.
• PCM_DIN: This pin is the serial input to the g20 SAP.
• PCM_DOUT: This pin is the serial output of the g20 SAP.
The following conditions apply to the digital audio interface of the g20:
• The g20 SAP works in network mode, with four slots in each frame. Each slot consists of 16-bit data.
• The frame sync rate is 8 KHz, and the clock rate is 512 KHz.
• The g20 is the master in the SAP network. Therefore, the connected DSP should be configured as the host.
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Hardware Description
3.5
ANTENNA
The g20 has two models, one for North America Frequency bands (850/1900 MHz), and one for European Bands
(900/1800 MHz). The following connection requirements apply for the g20 antenna:
• The g20 is terminated with an MMCX connector, and with 50-ohm impedance in the relevant frequencies.
• The g20 can be connected to any antenna with 50-ohm impedance in the relevant frequency bands.
• The g20 is designed to work on VSWR, up to 3:1 The antenna should meet this requirement.
3.5.1
Antenna Performance Recommendations
Table 12 lists the performance recommendations for the g20 antenna.
Table 12. Antenna Performance Recommendations
Frequencies:
GSM 850
GSM 900
DCS 1800
PCS 1900
3.6
TX
824 – 849 MHz
RX
869 – 893 MHz
TX
880 – 915 MHz
RX
925 – 960 MHz
TX
1710 – 1785 MHz
RX
1805 – 1880 MHz
TX
1850 - 1910 MHz
RX
1930 – 1990 MHz
Gain:
0 dBi (unity) gain or greater
Impedance:
50 Ohm
VSWR:
Typical: 1.5:1
Worst case: 2.5:1
CHARGER INTERFACE
g20 software supports charging circuitry for 3.6 V Lithium Ion batteries on some g20 models. The software interface is designed
to work with a charging IC from National Semiconductor, model LM3652. Refer to the schematics chapter in the g20
Developer’s Kit for more details about the design of the charging circuitry.
3.7
DISPLAY INTERFACE
The g20 supports a four-level gray-scale display with 96 x 65 pixels. The following five lines should be connected to the display:
• LCD_CS
• LCD_RS
• LCD_DATA
• LCD_CLK
• RESET_N
Use the BL_SINK line for backlighting (display and keypad) when using the display. The backlight sink can provide current up
to 100 mA, and can be used as an open drain output for more than 100 mA.
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Hardware Description
3.8
ESD PROTECTION
In general, the g20 does not include embedded ESD protection circuits. This type of protection should be implemented in the
customer application. Partial ESD protection is provided, as follows:
• SIM lines are protected up to 3 KV with 6.8 V Zener Diodes.
• VCC input is protected with a 2.2 uF capacitor.
• Ignition input is protected with a 100 nF capacitor.
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4. CONNECTOR PIN
ASSIGNMENTS
4.1
CONNECTORS
The g20 has two connectors: the g20 interface connector and the g20 RF connector. Each is described below.
4.2
g20 Interface Connector
Mating Connector
Stacking Height
70-pin, 0.5mm pitch, Molex 53748-0708
Molex 52991-0708
3.0 mm
g20 RF Connector
Mating Connector
Standard MMCX female
Standard MMCX male (connector for cable)
PIN ASSIGNMENTS
The g20 interface is provided via a 70-pin connector. Table 13 describes the pin assignments for the g20 interface connector.
Table 13. g20 Interface Connector Pin Assignments
Level
Pin #
Signal Name
Description
I/O
Signal
Min
Typ
Max
Units
Models
with USB
Driver/
Alternate
Function
Power:
GND
Ground
GND
GND
Ground
GND
GND
Ground
GND
GND
Ground
GND
VCC
Power supply
DC
3.0
3.6
4.2
VCC
Power supply
DC
3.0
3.6
4.2
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Connector Pin Assignments
Table 13. g20 Interface Connector Pin Assignments (Continued)
Level
Pin #
Signal Name
Description
I/O
Signal
Min
Typ
Max
Units
Models
with USB
Driver/
Alternate
Function
VCC
Power supply
DC
3.0
3.6
4.2
VCC
Power supply
DC
3.0
3.6
4.2
16
WAKEUP_IN
Wakeup input
Logic
2.775
26
WAKEUP_
OUT
Wakeup
output
Logic
2.775
25
RESET
Reset signal
output
Logic
2.775
53
ON_OFF
On/off switch
DC
3.0
3.6
4.2
51
IGN
Ignition input
Logic
2.775
3.6
16
39
TX_EN
GSM transmit
indicator
Logic
2.775
41
ANT_DET
Antennapresence
detect
Logic
2.775
49
GPRS_DET
GPRS
coverage
indicator
Logic
2.775
37
ENT_MUTE
Entertainment
mute
Logic
2.775
21
TXD
RS232 TXD
Logic
2.775
USB VMIN
11
RXD
RS232 RXD
Logic
2.775
USB
VPOUT
RTS
RS232 RTS
Logic
2.775
USB XRXD
15
CTS
RS232 CTS
Logic
2.775
USB
VMOUT
19
DTR
RS232 DTR
Logic
2.775
USB VPIN
GPIO:
UART:
32
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Connector Pin Assignments
Table 13. g20 Interface Connector Pin Assignments (Continued)
Level
Pin #
Signal Name
Description
I/O
Signal
Min
Typ
Max
Units
Models
with USB
Driver/
Alternate
Function
13
DSR
RS232 DSR
Logic
2.775
USB
TXENB
17
DCD
RS232 DCD
Logic
2.775
USB
SUSPEND
23
RI
RS232 RI
Logic
2.775
USB
SOFTCON
10
USB_DET
USBconnection
detect
DC
USB_
VBUS
12
Not
connected
USB_D+
14
Not
connected
USB_D-
USB:
4.4
5.25
SPI:
70
SPI_CS
SPI chipselect
Logic
2.775
62
SPI_IRQ
SPI interrupt
Logic
2.775
64
SPI_DIN
SPI MISO
input
Logic
2.775
68
SPI_DOUT
SPI MOSI
output
Logic
2.775
66
SPI_CLK
SPI clock
Logic
2.775
2.775
SIM Card:
50
SIM_PD
SIMpresence
detect
Logic
48
SIM_VCC
SIM VCC
DC
1.8
44
SIM_RST
SIM reset
Logic
1.8
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Connector Pin Assignments
Table 13. g20 Interface Connector Pin Assignments (Continued)
Level
Pin #
Signal Name
Description
I/O
Signal
Min
Typ
Max
Units
52
SIM_DIO
SIM serial
data
I/O
Logic
1.8
46
SIM_CLK
SIM clock
Logic
1.8
Models
with USB
Driver/
Alternate
Function
PCM Audio:
18
PCM_DIN
Digital audio
receive
Logic
2.775
20
PCM_DOUT
Digital audio
transmit
Logic
2.775
22
PCM_CLK
Digital audio
clock
Logic
2.775
24
PCM_FS
Digital audio
frame sync
Logic
2.775
54
LCD_CS
Display chipselect
Logic
2.775
60
LCD_RS
Display
register-select
Logic
2.775
56
LCD_DATA
Display serial
data
Logic
2.775
58
LCD_CLK
Display serial
clock
Logic
2.775
30
KBC0
Keypad
column 0
Logic
2.775
28
KBC1
Keypad
column 1
Logic
2.775
32
KBR0
Keypad row 0
Logic
2.775
34
KBR1
Keypad row 1
Logic
2.775
36
KBR2
Keypad row 2
Logic
2.775
Display:
Keypad:
34
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Connector Pin Assignments
Table 13. g20 Interface Connector Pin Assignments (Continued)
Level
Pin #
Signal Name
Description
I/O
Signal
Min
Typ
Max
Units
38
KBR3
Keypad row 3
Logic
2.775
40
KBR4
Keypad row 4
Logic
2.775
42
KBR5
Keypad row 5
Logic
2.775
67
SPKR_N
Speaker
inverted
Audio
69
SPKR_P
Speaker
Audio
63
ALRT_N
Alert speaker
inverted
Logic
65
ALRT_P
Alert speaker
Audio
61
MIC
Microphone
input
Audio
59
MIC_GND
Microphone
ground What
goes in I/O
column for
this pin?
GND
57
HDST_MIC
Headset
microphone
Audio
55
HDST_INT
Headsetdetect
interrupt
Logic
2.775
35
CHRG_DET
Chargerpresence
detect
Logic
2.775
33
CHRG_
STATE
Charger rate
indicator
Logic
2.775
31
CHRG_SW
Accessory
current control
Logic
2.775
Models
with USB
Driver/
Alternate
Function
Audio:
Charger:
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Connector Pin Assignments
Table 13. g20 Interface Connector Pin Assignments (Continued)
Level
Pin #
Signal Name
Description
I/O
Signal
Min
Typ
Max
Units
CHRG_DIS
Charger
disable
Logic
45
CHRG_TYP
Accessorytype detect
Logic
2.775
47
THERM
Temperature
measurement
Logic
2.775
100
mA
29
2.775
Models
with USB
Driver/
Alternate
Function
ADC:
Miscellaneous:
36
27
BL_SINK
Backlight
current sink
DC
80
43
VIB_OUT
Vibrator
regulator
DC
1.3
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5. MECHANICAL DESCRIPTION
5.1
MECHANICAL DETAILS
This section describes the mechanical details for the g20:
Size: 45.2x24.4x6 mm
Mounting: Two 2.4 mmØ holes are provided that accommodate M2 screws or #1-64 UNC 2A machine screws. Torque to
2 inches per pound. Refer to Figure 21 below for mounting requirements.
Figure 21. Mechanical Mounting Requirements
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Mechanical Description
38
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DRAFT 1 (31.3.03)
6. SERVICE SUPPORT
6.1
CUSTOMER ASSISTANCE
For customer assistance, contact us as directed below:
Helpdesk email: n2cshd@motorola.com
Helpdesk telephone: +972-3-568-4040
6.2
TESTING A STANDALONE UNIT
PLEASE PROVIDE DETAILS FOR THIS SECTION.
6.3
TROUBLESHOOTING
PLEASE PROVIDE DETAILS FOR THIS SECTION.
6.4
PROGRAMMING
PLEASE PROVIDE DETAILS FOR THIS SECTION.
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Service Support
40
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7. INDEX
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DRAFT 1 (31.3.03)
Index
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Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.4
Linearized                      : No
Create Date                     : 2003:03:31 16:58:42Z
Modify Date                     : 2005:07:25 12:19:17-03:00
Page Count                      : 106
Has XFA                         : No
Creation Date                   : 2003:03:31 16:58:42Z
Producer                        : Acrobat Distiller 4.0 for Windows
Mod Date                        : 2005:07:25 12:19:17-03:00
Author                          : Motorola Communications Ltd.
Metadata Date                   : 2005:07:25 12:19:17-03:00
Title                           : g20 Cellular Engine Module Description
Creator                         : Motorola Communications Ltd.

EXIF Metadata provided by EXIF.tools

Motorola Mobility T56DB2 Dual Band GSM Development Module User Manual g20 Cellular Engine Module Description

Motorola Mobility LLC Dual Band GSM Development Module g20 Cellular Engine Module Description

Contents

Exhibit 8 Users Manual

FCC ID Filing: IHDT56DB2

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