Digi CCIMX28 802.11a/b/g/n Embedded Client Module User Manual ConnectCore for i MX28 HRM

Digi International Inc 802.11a/b/g/n Embedded Client Module ConnectCore for i MX28 HRM

Manual

ConnectCore™ for i.MX28™

Hardware Reference

90002181_C

4/24/2013

Digi, Digi International, the Digi logo, a Digi International Company, Digi JumpStart Kit, ConnectCore, NET+,

NET+OS, NET+Works, and XBee are trademarks or registered trademarks of Digi International, Inc. in the United

States and other countries worldwide. All other trademarks are the property of their respective owners.

All other trademarks mentioned in this document are the property of their respective owners.

Information in this document is subject to change without notice and does not represent a commitment on the

part of Digi International.

Digi provides this document “as is,” without warranty of any kind, either expressed or implied, including, but

not limited to, the implied warranties of fitness or merchantability for a particular purpose. Digi may make

improvements and/or changes in this manual or in the product(s) and/or the program(s) described in this manual

at any time.

This product could include technical inaccuracies or typographical errors. Changes are periodically made to the

information herein; these changes may be incorporated in new editions of the publication.

Contents

Chapter 1: ConnectCard for i.MX28 Features and Functionality12

i.MX28 Features and Functionality......................................... 13

Block Diagram ................................................................. 14

CPU - Freescale i.MX28X ................................................... 14

ConnectCard for i.MX28 .................................................... 15

Module Pinout ................................................................. 16

52-Pin PCle Edge Connector ............................................... 16

Pinout .........................................................................16

Available Features............................................................ 19

Available Features - i.MX280 and i.MX287 ............................... 19

Thermal Considerations ..................................................... 20

31 Pin LCD, JTAG, and ETM Connector.................................... 20

Standard 18 Bit Color Pinout ..............................................21

24 bit Color Pinout (without JTAG) ....................................... 22

Module Operation ...........................................................23

DC Power .....................................................................23

Thermal Considerations ....................................................23

System Boot .................................................................. 23

Audio System .................................................................24

LCD System ...................................................................24

GPIO ...........................................................................24

Interfaces ..................................................................... 25

Chapter 2: About the Development Board ..................... 30

What’s on the Development Board? ....................................... 30

The Development Board ....................................................32

Development Board Set Up.................................................. 36

Power Supplies ............................................................... 36

Power over Ethernet (PoE) - IEEE802.3af ................................ 37

The PoE Module .............................................................. 38

PoE Connector (power in), P28 ............................................39

PoE Connector (power out), P33 .......................................... 39

Connector, Switch, and Jumper Locations ............................... 40

Power Functions and Settings ............................................. 41

Boot Mode ..................................................................... 41

Switch Location ............................................................... 42

Function and Settings .......................................................43

Development Board Button Functions ..................................... 43

XBEE RESET BUTTON and XBEE COMM BUTTON ......................... 43

Contents

USER BUTTON1 and USER BUTTON2 ...................................... 43

CCi.MX28 RESET BUTTON ..................................................43

CCi.MX28 POWER BUTTON .................................................43

CCi.MX28 RECOVERY BUTTON ............................................. 43

Button Locations.............................................................. 44

DUART (Console) and I2C0 .................................................. 45

Connector and Switch Locations .......................................... 45

Functions and Settings .....................................................46

AUART1, ENET0, LRADC4, LRADC5, and User LEDs ...................... 46

AUART1 ....................................................................... 46

ENET0 .........................................................................46

LRADC4 & LRADC5 ........................................................... 46

User LEDs ..................................................................... 46

Connector and Switch Locations .......................................... 47

Function and Settings .......................................................47

AUART4, SSP3, I2S (Audio), LRADC6, and XBee .......................... 49

AUART4 ....................................................................... 49

SSP3 ...........................................................................49

I2S (Audio) ....................................................................49

LRADC6 ........................................................................ 49

XBee ...........................................................................49

Connector and Switch Locations .......................................... 50

Function and Settings Table - AUART4 ................................... 51

Function and Settings Table - SSP3 ....................................... 51

Function and Settings Table - I2S ......................................... 52

Function and Settings Table - XBee ......................................53

Function and Settings Table - LRADC6 ................................... 53

AUART2 (TTL), AUART3 (TTL), CAN1, ETHERNET (ENET1), and USB Host (USB1)

AUART2 (TTL) ................................................................55

AUART3 ....................................................................... 55

CAN1 ...........................................................................55

ETHERNET ....................................................................55

USB HOST (USB1) ............................................................55

Connector, Switch, and Jumper Locations ..............................56

Function and Settings Table - AUART3 ................................... 57

Function and Settings Table - CAN1 ...................................... 57

Function and Settings Table - ENET1 ..................................... 57

Function and Settings Table - USB1 ......................................58

SD CARD, SSP1, LRADC0, LRADC1, LRADC2, and LRADC3 ............... 59

SD CARD ....................................................................... 59

Contents

SSP1 ...........................................................................59

LRADC0, LRADC1, LRADC2 and LRADC3 ..................................59

Connector, Switch, and Jumper Locations ..............................59

Function and Settings Table - SSP1 ....................................... 60

Function and Settings Table - LRADC0-3 .................................60

CAN0, HSADC, AND1-Wire ................................................... 61

CAN0 ...........................................................................61

HSADC .........................................................................61

1-Wire .........................................................................61

Connector, Switch, and Jumper Locations ..............................62

Function and Settings Table .............................................. 62

LCD, ETM, JTAG, USB OTG (USB0) ......................................... 63

Connector and Jumper Locations ......................................... 63

Functions and Settings .....................................................63

Chapter 3: Certifications................................................ 65

Agency Certifications ........................................................ 65

United States FCC ...........................................................65

FCC-Approved Antennas ....................................................66

Antennas Approved for Use with the ConnectCard™ for i.MX28 Wi-Fi Modules 67

RF Exposure .................................................................. 67

Europe (ETSI) .................................................................. 67

OEM Lebeling Requirements ............................................... 68

Restrictions ...................................................................68

Canada (IC) .................................................................... 69

Labeling Requirements ..................................................... 69

Transmitters with Detachable Antennas .................................69

Detachable Antenna ........................................................ 70

Australia (C-Tick) ............................................................. 70

Appendix A: Module Specifications ....... 71

Mechanical Specifications ................................................... 71

Dimensional Drawing ........................................................71

Environmental Specifications .............................................. 71

Network Interface ............................................................ 72

Digi part number A24-HASM-450 .......................................... 72

Digi part number 29000146 ................................................73

Taoglas PC.11.07.0100A ...................................................74

Taoglas FXP.830.07.0100C ................................................76

Ethernet 2 ....................................................................78

Contents

WLAN ..........................................................................78

5GHz HT20 AND HT40 Channels Available ............................... 81

Receive Sensitivity ..........................................................82

Electrical Characteristics.................................................... 82

Absolute Maximum Ratings ................................................ 82

Voltage Supplies .............................................................83

Supply Current ............................................................... 83

Transmit Power ..............................................................83

GPIO DC Parameters ........................................................ 83

Agency Approvals ............................................................. 84

Appendix B: Module Dimensions ........... 85

.................................................................................85

Appendix C: Change Log ..................... 86

Revision 0.1.................................................................... 86

Using this Guide

This guide provides information about the Digi ConnectCore™ for i.MX28 embedded

core module family.

Conventions used in this guide

This table describes the typographic conventions used in this guide:

Digi Information

Document Updates

Please always check the product specific section on the Digi support website at

www.digiembedded.com/support for the most current revision of this document.

Contact Information

For more information about your Digi products, or for customer service and

technical support, contact Digi International.

Additional Resources

Please also refer to the most recent Freescale® i.MX28 Application Processor

Reference Manual and related documentation (available on the Freescale web site)

for additional information.

This convention Is used for

italic type Emphasis, new terms, variables, and document titles.

monospaced type Filenames, pathnames, and code examples.

To contact Digi International by Use

Mail Digi International

1101 Bren Road East

Minnetonka, MN 55343

U.S.A.

Internet http://www.digiembedded.com/support/

Telephone (U.S.) (952) 912-3444 or (877) 912-3444

Telephone (other locations) +1 (952) 912-3444 or (877) 912-3444

ConnectCard for i.MX28

Features and Functionality

CHAPTER 1

The ConnectCard™ for i.MX28 is a cost-effective, small-footprint wireless embedded

module solution that is designed for connected devices in healthcare and other markets.

The module is based on the Freescale® i.MX28 processor family with a high-performance

ARM 9 core, multimedia options, and a complete set of peripherals.

Combined with a Qualcom-Atheros 802.11 and Bluetooth module featuring data rates up to

150Mbps the ConnectCard for i.MX28 is capable of communicating with a vast number of

peripheral devices over many different networks.

The module combines the fast integration, reliability and design flexibility of an off-the-

shelf System-on Module (SOM) with complete out-of-the-box software development support

for platforms such as Digi® Embedded Linux ®and Timesys® LinuxLink®.

Complete and cost-efficient Digi Jump Start Kits™ Linux allows immediate and professional

embedded product development with dramatically reduced design risk and time-to-market.

ConnectCore™ for i.MX28™ Hardware Reference

i.MX28 Features and Functionality

The ConnectCard for i.MX28 module is based on the i.MX28 processor series from Freescale.

This processor offers a high number of interfaces. Most of these interfaces are multiplexed

and are not available simultaneously. Not all features are available on all variations of the

module. More in-depth information can be found in the "i.MX28 Application Processor

Reference Manual" on the Freescale web site. The i.MX28 processor uses an ARM 926 core

with on-chip RISC (Reduced Instruction Set Computer).

The ConnectCard for i.MX28 module has the following i.MX28 features:

LRADC (Low Resolution ADC)

HSADC (High Speed ADC)

GPIO (General Purpose Input Output)

SD/SDIO/MMC (Secure Digital/ Secure Digital Input Output/ Multi-Media Card)

UART (Universal Asynchronous Receiver/Transmitter)

DUART (Debug Universal Asynchronous Receiver/Transmitter)

SPI (Serial Peripheral Interface)

I2C (Inter-Integrated Circuit)

CAN (Controller Area Network)

USB OTG (Universal Serial Bus On-the-Go)

USB Host (Universal Serial Bus)

ENET (Ethernet)

SAIF (Serial Audio Interface)

PWM (Pulse Width Modulator)

LCD (Liquid Crystal Display)

ETM (Embedded Trace Macrocell)

JTAG (Joint Test Action Group)

802.11 abgn and Bluetooth

Flash Memory

DDR2 Memory

One-Wire Interface

Power supply options - Battery and DC

ConnectCore™ for i.MX28™ Hardware Reference

Block Diagram

The following figures show the block diagram of the Freescale i.MX285 CPU and the block

diagram of the ConnectCore for i.MX28 module.

CPU - Freescale i.MX28X

ConnectCore™ for i.MX28™ Hardware Reference

ConnectCard for i.MX28

ConnectCore™ for i.MX28™ Hardware Reference

Module Pinout

The module has 2 connectors. The 52 pin PCIe edge connector, and the 31 pin LCD connector.

52-Pin PCle Edge Connector

The top side of the module has the shield on it and the bottom side of the module has the

i.MX28X on it. Pin numbering is shown below:

Pinout

Pin Pin Name Avail. on

i.MX287

Avail. on

i.MX280

Mux 0 Mux 1 Mux 2 Mux 3

1ENET0_TX+ X X

3ENET0_TX- X X

5GND X X

7AUART4_CTS X X SAIF0_MCLK PWM_3 AUART4_CTS GPIO3_20

XSSP3_SS0 AUART4_CTS ENET1_1588_EVENT1

_IN

GPIO3_27

9AUART4_RTS X X SAIF0_LRCLK PWM4 AUART4_RST GPIO3_21

XSSP3_MOSI AUART4_RX ENET1_1588_EVENT0

_IN

GPIO3_25

11 AUART4_RX X X SAIF0_BITCLK PWM_5 AUART4_RX GPIO3_22

XSSP3_MISO AUART4_RTS ENET1_1588_EVENT1

_OUT

GPIO3_26

13 AUART4_TX X X SAIF0_SDAT0 PWM_6 AUART4_TX GPIO3_23

XSSP3_SCK AUART4_TX ENET1_1588_EVENT0

_OUT

GPIO3_24

ConnectCore™ for i.MX28™ Hardware Reference

15 Pswitch X X

GAP

17 USB0_DM X X

19 USB0_DP X X

21 USB0_ID X X PWM_2 USB0_ID USB1

_OVERCURRENT

GPIO3_18

23 Battery X X

25 HSADC0 X X HSADC0

27 CAN0_RX XGPMI_READY3 CAN0_RX HSADC_TRIGGER GPIO0_23

29 CAN0_TX XGPMI_READY2 CAN0_TX ENET0_TX_ER GPIO0_22

31 SSP1_SS XSSP1_SS SSP2_D7 ENET0_1588_EVENT3

_IN

GPIO2_15

X X LRADC0

33 SSP1_MOSI XSSP1_MOSI SSP2_D2 ENET0_1588_EVENT2

_IN

GPIO2_13

X X LRADC1

35 SSP1_MISO XSSP1_MISO SSP2_D6 ENET0_1588_EVENT3

_OUT

GPIO2_14

X X LRADC2

37 SSP1_SCK XSSP1_SCK SSP2_D1 ENET0_1588_EVENT2

_OUT

GPIO2_12

X X LRADC3

39 AUART1_CTS XAUART1_CTS USB0

_OVERCURRENT

TIMROT_ROTARYA GPIO3_6

X X LRADC4

41 AUART1_RTS XAUART1_RTS USB0_ID TIMROT_ROTARYA GPIO3_7

X X LRADC5

43 AUART1_TX X X AUART1_TX SSP3_CARD

_DETECT

PWM1 GPIO3_5

45 AUART1_RX X X AUART1_RX SSP2_CARD

_DETECT

PWM0 GPIO3_4

47 GND X X

49 ENET1_TX+ X

51 ENET1_TX- X

2ENET0_RX+ X X

Pin Pin Name Avail. on

i.MX287

Avail. on

i.MX280

Mux 0 Mux 1 Mux 2 Mux 3

ConnectCore™ for i.MX28™ Hardware Reference

4ENET0_RX- X X

6VDD_5V X X

8I2C1_SCL X X PWM0 I2C1_SCL DUART_RX GPIO3_17

10 I2C1_SDA X X PWM1 I2C1_SDA DUART_TX GPIO3_16

12 DUART_RX X X I2C0_SCL TIMROT_ROTARYA DUART_RX GPIO3_24

14 DUART_TX X X I2C0_SDA TIMROT_ROTARYB DUART_TX GPIO3_25

16 RESET X X

GAP

18 SSP0_CMD X X SSP0_CMD GPIO2_8

20 SSP0_DATA0 X X SSP0_DATA0 GPIO2_0

22 SSP0_DATA1 X X SSP0_DATA1 GPIO2_1

XAUART3_CTS CAN1_TX ENET0_1588_EVENT1

_OUT

GPIO3_14

24 SSP0_DATA2 X X SSP0_DATA2 GPIO2_2

XAUART3_RTS CAN1_RX ENET0_1588_EVENT1

_IN

GPIO3_15

26 SSP0_DATA3 X X SSP0_DATA3 GPIO2_3

28 SSP0_SCLK X X SSP0_SCK GPIO2_10

30 SSP0_CARD

_DETECT

X X SSP0_CARD

_DETECT

GPIO2_9

32 LRADC6 /

SAIF1_DATA0

X X LRADC6

X X LCD_VSYNC SAIF1_DATA0 GPIO_1_28

34 i.MX28 3.3V

Output

X X

36 AUART2_CTS XAUART2_CTS I2C1_SCL SAIF1_BITCLK GPIO3_10

One-Wire X X

38 AUART2_RTS XAUART2_RTS I2C1_SDA SAIF1_LRCLK GPIO3_11

40 AUART2_RX XAUART2_RX SSP2_D2 SSP3_D5 GPIO3_8

42 AUART2_TX XAUART2_TX SSP3_D1 SSP3_D4 GPIO3_9

44 CAN1_RX XGPMI_CE3N CAN1_RX SAIF1_MCLK GPIO0_19

XAUART3_RX CAN0_TX ENET0_1588_EVENT0

_OUT

GPIO3_13

Pin Pin Name Avail. on

i.MX287

Avail. on

i.MX280

Mux 0 Mux 1 Mux 2 Mux 3

ConnectCore™ for i.MX28™ Hardware Reference

Available Features

Standard variants are available with either the i.MX280 or i.MX287. Not all features are available on

all variants. For custom variants see your Digi International sales person.

Available Features - i.MX280 and i.MX287

46 CAN1_TX XGPMI_CE2N CAN1_TX ENET0_RX_ER GPIO0_18

XAUART3_TX CAN0_RX ENET0_1588_EVENT0

_IN

GPIO3_12

48 VDD_5V X X

50 ENET1_RX+ X

USB1_DM XUSB1_DM

52 ENET1_RX- X

USB1_DP XUSB1_DP

Function i.MX280 i.MX287

LCD Interface -Yes

Touch Screen -Yes

Ethernet x1 x2

L2 Switch -Yes

CAN -x2

12-bit ADC x8 x8

High-speed ADC x1 x1

USB 2.0 OTG HS with HS

PHY x1

OTG HS with HS

PHY x1

HS Host with HS

PHY x1

HS Host with HS

PHY x1

SDIO x4 x4

SPI x4 x4

Application UART x6 x5

Debug UART x1 x1

PWM -x8

S/PDIF Tx -Yes

Security Yes Yes

Pin Pin Name Avail. on

i.MX287

Avail. on

i.MX280

Mux 0 Mux 1 Mux 2 Mux 3

ConnectCore™ for i.MX28™ Hardware Reference

Thermal Considerations

Heat dissipation of the i.MX28 processor is highly dependent on the selected clock speed and

the peripherals it is supporting. Freescale specifies the maximum allowed junction

temperature of the processor to be limited to 105C, which translates to the following

processor case temperatures:

The ConnectCard for i.MX28 has been built to function up to 65C at full clock speed without a

thermal pad attached (not included in the development kit) between the processor and the

development board, and has been checked up to 75C with the thermal pad attached. There is

a large ground area left open under the module on the development board under the module

to accommodate the thermal pad. Bergquist makes thermal pad material in various

thicknesses. The CCi.MX28 has been characterized using a combination of 2500S20 and

2000S40 pads from Bergquist.

Designs using the ConnectCard for i.MX28 need to ensure that the rating maximums above are

not exceeded in the application. Case temperature can be measured using an external probe

on the center of the i.MX28 processor package, and the junction temperature can be

monitored in software through an on-die temperature sensor provided in the i.MX processor.

Because of the limitation above, active and/or passive thermal management may be required

(thermal pad, airflow, clocking, etc.) like the Bergquist 2500s20 and 2000S40 thermal pads.

For more information on thermal consideration with the i.MX28 processor see the Freescale

i.MX28 data sheet.

31 Pin LCD, JTAG, and ETM Connector

The module uses a 31 pin ZIF connector for the LCD, JTAG and ETM connections. These pins

can also be used for GPIO functions. A list of possible connectors is shown below, the list is

not all inclusive:

The standard connection is 18 bit color, and the CC-WMX-PF58-TK-JT comes with this option.

Processor Speed Max Ambient Temperature w/o

Thermal Pad

Max Case Temperature

454 MHz 59 C 84 C

360 MHz 68 C 88 C

261 MHz 69 C 88 C

64 MHz 99 C 102 C

Manufacturer Part Number

FCI SFV31R-1STE1HLF

FCI SFV31R-1STE1LF

TYCO ELECTRONICS 3-1734839-1

ConnectCore™ for i.MX28™ Hardware Reference

Standard 18 Bit Color Pinout

Pin Pin Name i.MX28 Mux 0 Mux 1 Mux 2 Mux 3

1LCD_DOTCLK N1 LCD_DOTCLK SAIF1_MCLK ETM_TCLK GPIO1_30

2LCD_VSYNC M6 LCD_RESET LCD_VSYNC LCD_RESET /

LCD_VSYNC

GPIO3_31

3LCD_HSYNC M1 LCD_HSYNC SAIF1_SDATA1 EMT_TCTL GPIO1_29

4LCD_ENABLE N5 LCD_ENABLE LCD_ENABLE GPIO1_25

5LCD_WR_RWN /

ETM_TCLK

K1 LCD_WR_RWN LCD_HSYNC ETM_TCLK GPIO1_32

6LCD_D17 R3 LCD_D17 ETM_DA6 GPIO1_17

7LCD_D16 T3 LCD_D16 ETM_DA16 GPIO1_16

8LCD_D15 / ETM_DA15 U3 LCD_D15 ETM_DA15 GPIO1_15

9LCD_D14 / ETM_DA14 U2 LCD_D14 ETM_DA14 GPIO1_14

10 LCD_D13 / ETM_DA13 T2 LCD_D13 ETM_DA13 GPIO1_13

11 LCD_D12 / ETM_DA12 T1 LCD_D12 ETM_DA12 GPIO1_12

12 LCD_D11 / ETM_DA11 R2 LCD_D11 ETM_DA11 GPIO1_11

13 LCD_D10 / ETM_DA10 R1 LCD_D10 ETM_DA10 GPIO1_10

14 LCD_D09 / ETM_DA9 P3 LCD_D09 ETM_DA4 ETM_DA9 GPIO1_0

15 LCD_D08 / ETM_DA8 P2 LCD_D08 ETM_DA3 ETM_DA8 GPIO1_8

16 LCD_D07 / ETM_DA7 P1 LCD_D07 ETM_DA7 GPIO1_7

17 LCD_D06 / ETM_DA6 N2 LCD_D06 ETM_DA6 GPIO1-6

18 LCD_D05 / ETM_DA5 M3 LCD_D05 ETM_DA5 GPIO1_5

19 LCD_D04 / ETM_DA4 M2 LCD_D04 ETM_DA9 ETM_DA4 GPIO1_4

20 LCD_D03 / ETM_DA3 L3 LCD_D03 ETM_DA8 ETM_DA3 GPIO1_3

21 LCD_D02 / ETM_DA2 L2 LCD_D02 ETM_DA2 GPIO1_2

22 LCD_D01 / ETM_DA1 K3 LCD_D01 ETM_DA1 GPIO1_1

23 LCD_D00 / ETM_DA0 K2 LCD_D00 ETM_DA0 GPIO1_0

24 ETM_TCTL P4 LCD_RD_E LCD_VSYNC ETM_TCTL GPIO1_24

25 LCD_CS /

Touch_Interrupt

P5 LCD_CS GPIO1_27

26 JTAG_TRST# D14 JTAG_RTCK

27 JTAG_TMS D12

28 JTAG_TDO E13

29 JTAG_TDI E12

ConnectCore™ for i.MX28™ Hardware Reference

Provisions have been made on the module for 24 bit color without the JTAG connections.

24 bit Color Pinout (without JTAG)

30 JTAG_TCK E11

31 JTAG_RTCK E14

Pin Pin Name i.MX28

Mux 0 Mux 1 Mux 2

1LCD_DOTCLK N1 LCD_DOTCLK SAIF1_MCLK ETM_TCLK

2LCD_VSYNC M6 LCD_RESET LCD_VSYNC

3LCD_HSYNC M1 LCD_HSYNC SAIF1_SDATA1 EMT_TCTL

4LCD_ENABLE N5 LCD_ENABLE

5LCD_WR_RWN /

ETM_TCLK

K1 LCD_WR_RWN LCD_HSYNC ETM_TCLK

6LCD_D17 R3 LCD_D17 ETM_DA6

7LCD_D16 T3 LCD_D16 ETM_DA7

8LCD_D15 / ETM_DA15 U3 LCD_D15 ETM_DA15

9LCD_D14 / ETM_DA14 U2 LCD_D14 ETM_DA14

10 LCD_D13 / ETM_DA13 T2 LCD_D13 ETM_DA13

11 LCD_D12 / ETM_DA12 T1 LCD_D12 ETM_DA12

12 LCD_D11 / ETM_DA11 R2 LCD_D11 ETM_DA11

13 LCD_D10 / ETM_DA10 R1 LCD_D10 ETM_DA10

14 LCD_D09 / ETM_DA9 P3 LCD_D09 ETM_DA4 ETM_DA9

15 LCD_D08 / ETM_DA8 P2 LCD_D08 ETM_DA3 ETM_DA8

16 LCD_D07 / ETM_DA7 P1 LCD_D07 ETM_DA7

17 LCD_D06 / ETM_DA6 N2 LCD_D06 ETM_DA6

18 LCD_D05 / ETM_DA5 M3 LCD_D05 ETM_DA5

19 LCD_D04 / ETM_DA4 M2 LCD_D04 ETM_DA9 ETM_DA4

20 LCD_D03 / ETM_DA3 L3 LCD_D03 ETM_DA8 ETM_DA3

21 LCD_D02 / ETM_DA2 L2 LCD_D02 ETM_DA2

22 LCD_D01 / ETM_DA1 K3 LCD_D01 ETM_DA1

23 LCD_D00 / ETM_DA0 K2 LCD_D00 ETM_DA0

24 ETM_TCTL P4 LCD_RD_E LCD_VSYNC ETM_TCTL

Pin Pin Name i.MX28 Mux 0 Mux 1 Mux 2 Mux 3

ConnectCore™ for i.MX28™ Hardware Reference

Module Operation

Not all functions are available at the same time or on all module variants. The configuration

of the resources will depend on the system requirements, and some planning may be

required to set up the available interfaces in a particular application.

DC Power

The ConnectCard for i.MX28 has 5V and Battery inputs:

The 5V supply will have a maximum of 5.25V and a minimum operating voltage of 4.75V. This

supply is assumed to come from a regulated supply with about 1A of current capability. The

development board supply can generate up to 1.5A.

The Battery voltage needs to be between 3.4 and 4.242V. If both 5V and Battery supplies are

connected the module will automatically use the 5V supply.

In addition, there is a +3.3V line coming out of the module which can be used to power

external circuitry. This supply can be disabled in low power mode so that it can be used as a

low power configuration signal.

Thermal Considerations

At high clock rates the i.MX28 will pull more current. The ConnectCard for i.MX28 has been

built to function up to 65C at full clock speed with a thermal pad attached (not included in

the development kit) between the processor and the development board. There is a large

ground area left open under the module on the development board under the module to

accommodate the thermal pad. Bergquist makes thermal pad material in various

thicknesses. The CCi.MX28 has been characterized using a combination of 2500S20 and

2000S40 pads from Bergquist. Consult the Freescale data sheet for the i.MX28 for thermal

requirements.

System Boot

The ConnectCard for i.MX28 boot process begins at Power On Reset when the hardware reset

logic forces the ARM core to begin execution starting from the on-chip boot ROM. Boot ROM

25 LCD_CS /

Touch_Interrupt

P5 LCD_CS LCD_ENABLE

26 LCD_D18 U4 LCD_D18 ETM_DA18

27 LCD_D19 T4 LCD_D19 ETM_DA19

28 LCD_D20 R4 LCD_D20 ENET1_1588_EVENT2_OUT ETM_DA3

29 LCD_D21 U5 LCD_D21 ENET1_1588_EVENT2_IN ETM_DA2

30 LCD_D22 T5 LCD_D22 ENET1_1588_EVENT3_OUT ETM_DA1

31 LCD_D23 R5 LCD_D23 ENET1_1588_EVENT3_IN ETM_DA0

Pin Pin Name i.MX28

Mux 0 Mux 1 Mux 2

ConnectCore™ for i.MX28™ Hardware Reference

code uses the state of the internal register BOOT_MODE[1:0] as well as the state of various

eFUSEs and/or GPIO settings to determine the boot flow behavior of the module.

The following Boot modes are supported:

Boot from FLASH

Boot from SD Card

Boot from USB

Boot from JTAG

Each mode is selected by applying the proper bit pattern to LCD_D00, LCD_D01, LCD_D02,

LCD_D03, and LCD_D04. The default boot mode is FLASH. No internal eFUSEs have been set.

For more information on boot modes, please refer to chapter 12 of the Freescale

documentation.

Audio System

The audio system is using an SAIF interface configured as I2S.

LCD System

The LCD is available through a 31 pin ZIF connector on the top side of the module (see

variants for availability). The development kit uses a cable from NICOMATIC (part number

050P331K0076-406406 ). The default LCD setting is for 18 bit color, and the development

board is set up for this setting as well. A special 24 bit color option is available (not

supported in current variant list) but will disconnect the JTAG functionality. Touch screen

functionality is supported by connecting LRADC2-5. There are multiple SPI ports available to

communicate with a SPI touch screen controller (the development board uses SSP1).

PWM0,1,3,4,5 and 6 are available to use for backlight control (the development board uses

PWM0).

GPIO

In general any of the modules digital pins can be set as a GPIO. There are 3 available states

for any GPIO-- low, high , and high impedance. Each of the GPIO pins is capable of

functioning on either at 1.8 or 3.3V as well as an interrupt/trigger pin. Each individual GPIO

can be dynamically programmed at any time to be in either: High-impedance (for input,

three-state, or open-drain applications); Low; High; or Controlled by one of the three

selectable i.MX28 peripheral module interfaces. The state of any GPIO pin can be read at

any time regardless of its configuration. Analog pins may not be set as GPIO. The following

functions cannot be used for GPIO functions:

Ethernet

USB

LRADC (although muxed functions can be used)

HSADC

One Wire (Technically it could be by controlling the I2C line)

JTAG

ConnectCore™ for i.MX28™ Hardware Reference

PSWITCH

RESET

DC connections (5V, Battery, and GND)

Interfaces

1-Wire

The ConnectCard for i.MX28 provides a 1-wire interface to communicate with 1-wire devices

such as EEPROMs, secure memory and sensors. The required protocol for accessing the

generic 1-wire device is defined by Maxim. The Maxim DS2482-100 interface is used for 1-

Wire communication. The 1-wire interface uses a strong 3.3V pull-up.

ADCs and Touch Screen

The ConnectCard for i.MX28 provides both Low-Resolution ADC's (LRADC) and a High speed

ADC (HSADC). In either case, the ADC's have 12 bit resolution and an absolute accuracy of

1.3%.

LRADC's can operate with up to 3.3V inputs, with an absolute accuracy of 1.3%. In addition to

ADC functions, LRADC 2-6 can also be used for touch screen control (2-5 are used on the

development board for touch screen control). There are 16 ADC channels available, the

channel assignments are shown in the table below:

ADC Channel Number Assignment

0-6 LRADC0-6 measure the voltage on the seven application-dependant LRADC

pins.

LRADC2-6 can be used for 4/5-wire touch screen control.

LRADC6 can be used for a wiper of 5-wire touch screen controller and external

temperature sensing, but they cannot be enabled at the same time in hardware

configuration.

7Dedicated to measuring the battery voltage.

8, 9 Dedicated to measuring the internal die temperature.

10 Dedicated to measuring the internal 3.3V rail, and for calibrating the voltage

levels measured on the auxiliary channels.

11 Reserved input for analog testing.

12 Dedicated to measuring the internal 1.8V rail.

13 Dedicated to measuring the internal 1.5V rail.

14 Dedicated to measuring the band gap reference voltage and can be used to

calibrate out a portion of the LRADC measurement error. In most cases the band

gap reference error dominates the total LRADC error, and this calibration is not

helpful.

15 Dedicated to measuring the 5V supply to detect possible issues with the 5V rail

dropping.

ConnectCore™ for i.MX28™ Hardware Reference

The HSADC is capable of measuring up to 2Msps, and can be used in conjunction with the

PWM's to generate signals for external devices like a linear image scanner sensor. The HSADC

can be triggered to start the conversion of an analog source in three modes:

Trigger by Software

Trigger signal generated by the PWM block

Trigger by an input pin from an external source

CAN

The ConnectCard for i.MX28 includes two FlexCAN2 controllers which are compatible with

the CAN 2.0B protocol specification. The CAN Protocol Interface (CPI) manages the serial

communication on the CAN bus, requesting RAM access for receiving and transmitting

message frames, validating received messages and performing error handling. The Message

Buffer Management (MBM) handles Message Buffer selection for reception and transmission,

taking care of arbitration and ID matching algorithms. The CAN bus can operate up to 1Mbps

The FlexCAN2 controllers require additional hardware, an example of this circuitry can be

found on the development board.

Ethernet

The ConnectCard for i.MX28 provides up to two 10/100 Mbps Ethernet connections (see

variants table for number of Ethernet connections). The MAC and PHY are on the module,

and the Magnetics and Jack need to be provided external to the module. The connections

from the module are differential pairs for the TX and RX ports. In variants with 1 Ethernet 2

USB ports are provided.

USB

The ConnectCard for i.MX28 includes up to two high-speed Universal Serial Bus (USB) version

2.0 controllers and integrated USB Transceiver Macrocell Interface (UTMI) PHYs. The i.MX28

device interface can be attached to USB 2.0 hosts and hubs running in the USB 2.0 high-speed

mode at 480 Mbps. It can be attached to USB 2.0 full-speed interfaces at 12 Mbps. Note that

a dual-device configuration is not supported. The USB controllers and integrated PHYs

support high-speed Host modes for peer-to-peer file interchange. The USB controller can also

be configured as a high-speed host.

Each USB is a dynamically configured port that can support up to seven RX and seven TX

endpoints besides EP0, each of which may be configured for bulk, interrupt, or isochronous

transfers.

USB0 is a high speed, OTG-capable universal serial bus. The ConnectCard for i.MX28 can

operate as a host controller that can support eight endpoints: one control, one bulk-out, one

bulk-in, and five flexible endpoints. Further, it can negotiate with another OTG system to be

either the host or the device in a peer connection.

Note that USB1 is a host-only USB port.

Variants with two USB ports have only one Ethernet port, as noted in the Ethernet section

above.

ConnectCore™ for i.MX28™ Hardware Reference

I2C

The ConnectCard for i.MX28 contains 2 two-wire SMB/I2C bus interfaces. Each interface can

act as a slave or a master on the SMB. The I2C interfaces are multiplexed with the DUART,

and I2C0 is used for the DUART on the development board, and no termination resistors are

on the module for this interface. I2C1 is used to run the 1-wire interface, and 2.2K ohm

termination resistors are located on the module. The supply voltage of these resistors is

3.3V.

The I2C bus is a standard two-wire serial interface for connecting the ConnectCard for i.MX28

to peripheral devices or host controllers. The I2C buss operates at a standard speed of up to

100Kbps and a fast speed of up to 400Kbps. The ConnectCard for i.MX28 can act as either

master of slave on the I2C bus. This module is also capable of supporting multi-master

configurations. The device address of the 1-wire bridge is 00, and cannot be used by other

I2C devices connected to the I2C1 bus.

SAIF (Audio)

The ConnectCard for i.MX28 includes a Serial Audio Interface (SAIF) configured as an I2S

intervace. It is capable of transmitting and receiving in 16 or 24 bit audio, by connecting to

an audio codec. A possible example circuit is shown in the development board schematics.

AUARTs and DUART

Up to four application UARTs (AUART), and 1 debug (console) DUART are available on the

ConnectCard for i.MX28 module. The AUARTs are capable of running up to 3.25 Mbps, while

the DUART is capable of speeds up to 115Kbps. Variants using the i.MX287 include flow

control on all application UARTs.

Through the DUART the CPU reads and writes data and control/status information through

the APBX interface. The DUART does the serial to parallel conversions on data received from

a peripheral device and the parallel to serial conversion on data transmitted to the

peripheral device. The buffer size for the DUART is 32 bytes. Flow control is not included for

the debug UART.

Pulse Width Modulator (PWM)

The ConnectCard for i.MX28 module provides access to PWM0 through PWM6. The PWMs can

be used in place of GPIO pins to control such things as LED Brightness, HSADC, and LCD

backlight control. Independent output control of each phase allows 0, 1, or high-impedance

to be independently selected for the active and inactive phases. Individual outputs can be

run in lock step with guaranteed non-overlapping portions for differential drive applications.

Synchronous Serial Ports (SPI, and SD)

The three available Synchronous Serial Ports on the ConnectCard for i.MX28 module can

support SPI master and Slave modes up to 52MHz speeds. In addition SSP0 is capable of SD

card functions including booting.

Real Time Clock (RTC)

The real-time clock (RTC) and alarm share a one-second pulse time domain. The watchdog

reset and millisecond counter run on a one-millisecond time domain. The RTC, alarm, and

ConnectCore™ for i.MX28™ Hardware Reference

persistent bits use persistent storage and reside in a special power domain (crystal domain)

that remains powered up even when the rest of the chip is in its powered-down state.

The ConnectCard for i.MX28 development board does not include a backup battery, so the

RTC will not be maintained through power cycles.

Liquid Crystal Display (LCD)

Some versions of the ConnectCard for i.MX28 includes an LCD connector that is separate from

the edge connector. Smart LCDs are available in a range of sizes and capabilities, from simple

text-only displays to WVGA, 16/18/24 bpp color TFT panels. This device supports displays

that support moving pictures and require the RGB interface mode (called DOTCLK interface

in this document).

Wi-Fi and Bluetooth

The ConnectCard for i.MX28 is available with an Qualcom-Atheros 802.11 a b g n and BT4.0

interfaces. Wi-Fi data rates up to 150 Mbps (5GHz n-mode) are possible. For variants

without BT a diversity antenna (using the 2 u.FL ports) is utilized for the 2.4GHz band. For

variants with BT a single u.FL antenna connection for both bands is used.

The module is built with coexistence in mind and handles the BT coexistence internally.

Cellular coexistence filtering is onboard to aid in designing systems susceptible to cellular

interference.

A mini access point mode is available in the Wi-Fi with up to 5 clients. This mode is limited

to non DFS channels. The channels available are shown below:

US and Canada - 2.4 GHz band, 5.8, 5.15-5.25 GHz only

EU - 2.4 GHz band only

Japan - 2.4 GHz band only

Embedded Trace Macrocell

The ConnectCard for i.MX28 includes a stand-alone ARM CoreSight Embedded Trace

Macrocell, ETM9CSSingle, which provides a instruction trace and a data trace for the ARM9

microprocessor. This function is available on the same connector as the LCD, and many of

the pins are shared with the LCD controller. This feature is disabled by default. To enable

Embedded Trace Macrocell, external hardware is needed to set LCD_D05 to high during reset

(rever to the i.MX28 boot mode configuration).

Reset

The reset pin on the module is low asserted. A low pulse will reset the module. There is an

internal pull up resistor to 3.3V, so no external pull up resistor is needed.

Recovery and Power

The power pin is used to turn the ConnectCard for i.MX28 module on when only the battery

supply is connected. This is done by connecting about 1V to the pin for 100ms.

The power pin is also used to place the module in recovery mode. This is done by placing

3.3V on the pin for more than 5 seconds. The sb_loader can then be used to boot the part

through the USB OTG (USB0) interface.

ConnectCore for i.MX53

NAND FLASH

The ConnectCard for i.MX28 module includes either 128MB or 256MB of NAND FLASH from the

Micron Technologies MT29F series. These chips operate from 1.8V.

DDR2 RAM

The DDR2 RAM on the ConnectCard for i.MX28 module is either 128MB or 256MB from the

Micron Technologies MT47 series.

About the Development Board

CHAPTER 2

The Development Board for the ConnectCardTfor i.MX28 is set up to allow testing of the

interfaces on the module. These various interfaces are selected by switches, and not all

interfaces are available at the same time.

In addition to the switches there are jumpers, pushbutton switches, potentiometers,

various header connectors, and various connectors to handle the interfaces. All the

required circuitry for the interfaces is included on the development board.

What’s on the Development Board?

Locking barrel power supply port for 12V wall adapter

Power switch

Connectors for Digi 802.3af Power Over Ethernet module (sold separately)

5V regulated power supply

4.2V regulated power supply (battery simulator)

3.3V Regulated power supply to run the dev board and XBee modules

Screw Terminal blocks for 5V, 4.2V external supplies

2 X Ethernet connections

2 X UART 232 SUB-D 9-pin connectors

1 X DUART 232 SUB-D 9-pin Connector

2 X UART with TTL levels

2 X CAN bus with termination resistors selection and SUB-D 9-pin connections

1 X USB OTG connector

1 X USB Host connector

1 X micro SD card holder

HSADC header

LRADC header and potentiometers

SPI and I2C headers

One Wire header and EEPROM

ConnectCore™ for i.MX28™ Hardware Reference

Audio Interface

18 Bit Color LCD interface

Boot mode selection jumpers

ETM header

JTAG header

XBee Through-Hole and SMT sockets

User Buttons and LEDs

Power and Reset buttons

GPIO header

3 X u.FL to RPSMA connectors (2 for the CCi.MX28 module and 1 for XBee antennas)

ConnectCore™ for i.MX28™ Hardware Reference

The Development Board

Since some interfaces share a common pin on the ConnectCard for i.MX28 module, and may

be used for multiple interfaces on the development board, conflicts between interfaces are

possible. Tables are included to show which interfaces share resources. Tables in this

section show the position of switches and jumpers. For switches ON/CLOSE indicates the

switch is set to the on position connecting the two sides of the switch, conversely OFF/OPEN

indicates the switch is in the off position disconnecting the two sides of the switch. For

Jumpers SHORT indicates the jumper is installed across the two posts, and OPEN indicates

the jumper is not installed. The functions are shown in rows. To set up a function follow the

ConnectCore™ for i.MX28™ Hardware Reference

instructions on the row for that function. If the table has nothing in the box, there is no

conflict with that switch or jumper.

Header Pin Outs

The pin out for the interface headers are shown below.

SSP1 (P85) & SSP3 (P87)

PIN FUNCTION

1 VCC_3V3

2MOSI

3MISO

4SCK

5SSN

6GND

LRADC (0-6) (P8) AUART2 (P2) AUART3 (P3)

PIN FUNCTION PIN FUNCTION PIN FUNCTION

1 LRADC0 1 NC 1 NC

2 LRADC1 2 NC 2 NC

3 LRADC2 3 RX 3 RX

4 LRADC3 4 NC 4 NC

5 LRADC4 5 TX 5 TX

6 LRADC5 6 NC 6 NC

7 LRADC6 7 NC 7 NC

8NC 8 NC 8 NC

9GND 9GND 9GND

10 3.3VDC 10 3.3VDC 10 3.3VDC

JTAG (P34) ETM (J4)

PIN FUNCTION PIN FUNCTION PIN FUNCTION

1 3.3VDC 1 NC 2 NC

2 3.3VDC 3 NC 4 NC

3 TRST 5 GND 6 TCLK

ConnectCore™ for i.MX28™ Hardware Reference

4 GND 7 DBGRQ 8 DBGACK

5 TDI 9 NC 10 EXTTRIG

6 GND 11 NC 12 VTREF

7 TMS 13 NC 14 VSUPPLY

8 GND 15 NC 16 DA7

9 TCK 17 NC 18 DA6

10 GND 19 NC 20 DA5

11 RTCK 21 NC 22 DA4

12 GND 23 DA15 24 DA3

13TD0 25DA1426 DA2

14 GND 27 DA13 28 DA1

15 RESET 29 DA12 30 GND

16 GND 31 DA11 32 GND

17 NC 33 DA10 34 VTREF

18 GND 35 DA9 36 TCTL

19 Pull Down 37 DA8 38 DA0

20 GND 39 GND 40 GND

41 GND 42 GND

43 GND

LCD (P4)

PIN FUNCTION PIN FUNCTION

1D162D17

3D124D13

5D146D15

7D168D17

9NC10NC

11 NC 12 NC

13 GND 14 GND

15 D10 16 D11

17 D06 18 D07

19 D08 20 D09

JTAG (P34) ETM (J4)

ConnectCore™ for i.MX28™ Hardware Reference

21 D10 22 D11

23 NC 24 NC

25 NC 26 NC

27 GND 28 GND

29 D04 30 D05

31 D00 32 D01

33 D02 34 D03

35 D04 36 D05

37 NC 38 NC

39 NC 40 NC

41 GND 42 GND

43 ENABLE 44 DOTCLK

45 PWM0 46 GND

47 VSYNC 48 HSYNC

49 NC 50 NC

51 NC 52 NC

53 NC 54 NC

55 GND 56 GND

57 SSP1_MOSI 58 SSP1_SCK

59 AUART1_CTS 60 AUART1_RTS

61 I2C1_SDA 62 I2C1_SCL

63 SSP1_SSN 64 SSP1_SCK

65 SSP1_MOSI 66 SSP1_MISO

67 NC 68 Touch Jumper

69 NC 70 NC

71 TOUCH_INTERRUPT 72 GND

73 3.3VDC 74 3.3VDC

75 WALL_12V 76 WALL_12V

77 WALL_12V 78 WALL_12V

79 NC 80 NC

LCD (P4)

ConnectCore™ for i.MX28™ Hardware Reference

Development Board Set Up

Power Supplies

The development board includes two 5V, one 4.2V, and one 3.3V regulators. One 5V regulator

is set up to power the module from the 9VDC to 30VDC wall adaptor, the other 5V regulator is

a buck boost regulator to power the USBs. The 4.2V regulator is set up to power the module

through the BATT port. The 3.3V regulator powers both the development board and the XBee

if so equipped. The development board has an ON/OFF switch, SW1. The power switch SW1

can switch both 9V-30VDC input power supply and 12VDC coming out of the optional PoE

module (Digi P/N DG-ACC-POE). However, if a power plug is present on the DC power jack,

PoE is disabled.

The 5V and BATT module supplies can also come from an external jack. For the 5V external

jack the voltage range is 4.75DC to 5.25VCD. For the external BATT supply the allowable

range is 3.4VDC to 4.2VDC. The module will not auto boot from the BATT supply, but will

from the 5V supply. If operating form only the BATT supply the POWER BUTTON will need to

be pressed to turn the module on.

The 3.3V board supply and XBee supply along with the 5V USB supply are powered from either

the 5V or BATT module supplies, with the 5V supply being the primary and the BATT supply

being the secondary supply.

The module can be connected to both the 5V and BATT supply at the same time. When

connected to both supplies the module will draw its power form the 5V supply, as will the

board, USB, and XBee.

ConnectCore™ for i.MX28™ Hardware Reference

Power over Ethernet (PoE) - IEEE802.3af

PoE is only available through ENET0 on the development board.

If the wall plug is connected Poe is disabled.

The development board provides two PoE module connectors, P28 and P33, to plug a Digi PoE

module (DG-ACC-POE). The PoE module is an optional accessory item that can be plugged on

the development board through the two connectors.

• P28, input connector: provides access to the PoE signals from the Ethernet

connector

• P33, output connector: provides the output power supply from the PoE module

ConnectCore™ for i.MX28™ Hardware Reference

The PoE Module

Plug in the PoE module at a right angle to the development board, as shown in the picture

below.

Note: the PoE module is part of the optional Digi 802.3af application kit (sold separately, Digi

P/N DG-ACC-POE).

ConnectCore™ for i.MX28™ Hardware Reference

PoE Connector (power in), P28

The table below provides the pinout of the PoE input connector:

PoE Connector (power out), P33

The table below provides the pinout of the PoE output connector:

Pin Signal

1Poe_TX_CT

2 Poe_RX_CT

3 Poe_RJ45_4/5

4 Poe_RJ45_7/8

Pin Signal

1 +12V_PoE

2 +12V_PoE

3GND

4GND

5 Poe_GND

6 Poe_GND

ConnectCore™ for i.MX28™ Hardware Reference

Connector, Switch, and Jumper Locations

ConnectCore™ for i.MX28™ Hardware Reference

Power Functions and Settings

9-30VDC, P13 set

4.2V and 5V External Terminal Blocks, P13 Open

5V and BATT supplies can be connected at the same time, however 5V will be selected by the

CCi.MX28 in this case.

The term REG refers to connection to the onboard regulator, and the term EXT refers to

connection to an external supply using the screw terminals. To use the internal regulator

function move the switch (SW21 or SW22) to the REG setting, and the opposite setting (EXT)

to connect the module to an external supply.

Boot Mode

The Boot Mode of the ConnectCard for i.MX28 is set using SW25. Setting the boot mode

requires the 31 connector FFC cable, as five of the LCD lines are used to set the boot mode.

On board logic sets up the boot mode in accordance with the Freescale requirements.

Some LCDs can drive these lines to undesired states. The development board includes

circuitry to prevent the LCD from corrupting the boot mode.

If your final design does not include the video cable, you may still boot from USB using the

recovery button. This is explained in Chapter 3.

Function J31 J33 SW1 SW21 SW22 P65 P16 P26 P21

5V Regulator,

no XBee

NC NC ON REG EXT SHORT OPEN OPEN SHORT

5VRegulator,

with XBee

NC NC ON REG EXT SHORT SHORT OPEN SHORT

Battery

Regulator, no

XBee

NC NC ON EXT REG SHORT OPEN SHORT OPEN

Battery

Regulator, with

XBee

NC NC ON EXT REG SHORT SHORT SHORT OPEN

Function J31 J33 SW1 SW21 SW22 P65 P16 P26 P21

External 5V, no

XBee

4.75-

5.25VDC

NC OFF EXT EXT SHORT OPEN OPEN SHORT

External 5V,

with XBee

4.75-

5.25VDC

NC OFF EXT EXT SHORT SHORT OPEN SHORT

External Battery

no XBee

NC 3.4-4.2VDC ON EXT EXT SHORT OPEN SHORT OPEN

External Battery

with XBee

NC 3.4-4.2VDC ON EXT EXT SHORT SHORT SHORT OPEN

ConnectCore™ for i.MX28™ Hardware Reference

Switch Location

ConnectCore™ for i.MX28™ Hardware Reference

Function and Settings

Development Board Button Functions

The development board has seven buttons with different functions.

XBEE RESET BUTTON and XBEE COMM BUTTON

These two buttons are for an XBee module. For the XBee button function, consult the XBee

manual.

USER BUTTON1 and USER BUTTON2

The two user buttons are connected to the ConnectCard for i.MX28 modules as GPIOs to

UART2_RTS (module pin 38) and SD_CARDDETECT (module pin 30). User Buttons provide a

high (3.3V) level until pressed, then a low (GND) level is sent.

CCi.MX28 RESET BUTTON

This button resets the module and is red in color. Pressing this button will cause the module

to reboot.

CCi.MX28 POWER BUTTON

This button is used to turn the module on when it is operating from the BATT power supply.

The module will not auto-boot from the battery supply, but will from the 5V supply.

CCi.MX28 RECOVERY BUTTON

This button is used to put the module in recovery mode. In this mode, the SB_LOADER

program can be used to boot the module through the USB OTG (USB0) port.

Boot Mode SW25 P1 SW25 P2

NAND FLASH OFF/OPEN OFF/OPEN

USB OFF/OPEN ON/CLOSE

SD ON/CLOSE OFF/OPEN

JTAG ON/CLOSE ON/CLOSE

ConnectCore™ for i.MX28™ Hardware Reference

Button Locations

USER BUTTON1 (SW4)

CCIMX28 RESET BUTTON (SW6)

CCIMX28 POWER BUTTON (SW7)

XBEE RESET BUTTON (SW3)

CCIMX28 RECOVERY

BUTTON (SW23)

USER BUTTON2 (SW5) XBEE COMM BUTTON (SW3)

ConnectCore™ for i.MX28™ Hardware Reference

DUART (Console) and I2C0

The normal mode of sending commands and receiving information from the module about

those commands is through the DUART. The DUART is multiplexed with I2C0, and switches

are provided to select the function desired.

The DUART status can be seen in the DUART LEDs located close to SW11.

Connector and Switch Locations

ConnectCore™ for i.MX28™ Hardware Reference

Functions and Settings

AUART1, ENET0, LRADC4, LRADC5, and User LEDs

AUART1

AUART1 can be operated with or without flow control, and each of the functions are

connected separately to the D9 connector through switch SW8. The status of AUART 1 can be

seen in the AUART1 LEDs located next to SW8.

ENET0

ETHERNET (ENET0) is wired directly to the module and no switching is required. The LEDs for

ENET0 are operated by GPIOs and are available through switch SW12.

LRADC4 & LRADC5

LRADC4 and LRADC5 are connected to separate potentiometers through switch SW28 and

SW20. When not using the potentiometer, it is best to leave the switch in the OFF/OPEN

condition to avoid having the potentiometer voltage affecting the other signals on the line.

All the LRADCs (0-6) are also available through the LRADC header.

User LEDs

USER_LED1 and USER_LED2 are connected to PWM1, and PWM0 respectively. The LEDs will

turn on with a low and off with a high.

Function SW11 P1 SW11 P2 SW29 P1 SW29 P2

DUART_TX ON/CLOSE ON/CLOSE OFF/OPEN OFF/OPEN

DUART_RX ON/CLOSE ON/CLOSE OFF/OPEN OFF/OPEN

I2C0_SDA OFF/OPEN OFF/OPEN ON/CLOSE ON/CLOSE

I1C0_SCL OFF/OPEN OFF/OPEN ON/CLOSE ON/CLOSE

ConnectCore™ for i.MX28™ Hardware Reference

Connector and Switch Locations

Function and Settings

Function SW8

SW8

SW12

SW20

SW28

AUART1_TX ON/

OFF/

OPEN

AUART1_RTS ON/

OFF/

OPEN

OFF/

OPEN

AUART1_RX ON/

OFF/

OPEN

AUART1_CTS ON/

OFF/

OPEN

OFF/

OPEN

ConnectCore™ for i.MX28™ Hardware Reference

ENET0_SPEED_LED OFF/

OPEN

ON/

OFF/

OPEN

ENET0_ACTIVE_LED OFF/

OPEN

ON/

OFF/

OPEN

LRADC4 POT OFF/

OPEN

OFF/

OPEN

ON/

LRADC5 POT OFF/

OPEN

OFF/

OPEN

ON/

USER_LED1 OFF/

OPEN

ON/

USER_LED2 OFF/

OPEN

ON/

Function SW8

SW8

SW12

SW20

SW28

ConnectCore™ for i.MX28™ Hardware Reference

AUART4, SSP3, I2S (Audio), LRADC6, and XBee

AUART4

AUART4 can be operated with or without the flow control, and each of the functions are

connected separately to the D9 connector through switch SW9. The status of AUART4 can be

seen in the AUART4 LEDs located next to SW9.

SSP3

SSP3 is connected to its header (P87) through switch SW17.

I2S (Audio)

I2S (AUDIO) connections are made through switch SW14. The CODEC also uses I2C1. The

LRCLK is multiplexed with AUART4_CTS.

LRADC6

LRADC6 is connected to its potentiometer through switch SW28 POS3. When not using the

potentiometer, it is best to leave the switch in the OFF/OPEN condition to avoid having the

potentiometer voltage affecting the other signals on the line. All the LRADCs (0-6) are also

available through the LRADC header.

XBee

XBee connections are made through switch SW19. AUART4 is used to communicate with the

XBee module.

ConnectCore™ for i.MX28™ Hardware Reference

Connector and Switch Locations

ConnectCore™ for i.MX28™ Hardware Reference

Function and Settings Table - AUART4

Function and Settings Table - SSP3

Function AUART4_TX AUART4_RTS AUART4_RX AUART4_CTS

SW9 / P1 ON/CLOSE

SW9 / P2 ON/CLOSE

SW9 / P3 ON/CLOSE

SW9 / P4

SW14 / P1

SW14 / P2 OFF/OPEN

SW17 / P1 OFF/OPEN

SW17 / P2 OFF/OPEN

SW17 / P3 OFF/OPEN

SW17 / P4 OFF/OPEN

SW19 / P1 OFF/OPEN

SW19 / P2 OFF/OPEN

SW19 / P3 OFF/OPEN

SW19 / P4 OFF/OPEN

SW28 / P3

Function SSP3_MOSI SSP3_MISO SSP3_SCK SSP3_SS0

SW9 / P1 OFF/OPEN

SW9 / P2 OFF/OPEN

SW9 / P3 OFF/OPEN

SW9 / P4 OFF/OPEN

SW14 / P1

SW14 / P2 OFF/OPEN

SW17 / P1 ON/CLOSE

SW17 / P2 ON/CLOSE

SW17 / P3 ON/CLOSE

SW17 / P4 ON/CLOSE

SW19 / P1 OFF/OPEN

SW19 / P2 OFF/OPEN

SW19 / P3 OFF/OPEN

ConnectCore™ for i.MX28™ Hardware Reference

Function and Settings Table - I2S

Note: I2S (Audio) also uses I2C1

SW19 / P4 OFF/OPEN

SW28 / P3

Function I2S_SAIF1_DATA0 I2S_SAIF0_MCLK I2S_SAIF0_DATA0 I2S_SAIF0_BITCLK

SW9 / P1 OFF/OPEN

SW9 / P2

SW9 / P3 OFF/OPEN

SW9 / P4 OFF/OPEN

SW14 / P1 ON/CLOSE

SW14 / P2 ON/CLOSE

SW17 / P1

SW17 / P2 OFF/OPEN

SW17 / P3 OFF/OPEN

SW17 / P4 OFF/OPEN

SW19 / P1 OFF/OPEN

SW19 / P2

SW19 / P3 OFF/OPEN

SW19 / P4 OFF/OPEN

SW28 / P3 OFF/OPEN

Function SSP3_MOSI SSP3_MISO SSP3_SCK SSP3_SS0

ConnectCore™ for i.MX28™ Hardware Reference

Function and Settings Table - XBee

Function and Settings Table - LRADC6

Function XBEE_RTS XBEE_DTR XBEE DIN XBEE DOUT

SW9 / P1 OFF/OPEN

SW9 / P2 OFF/OPEN

SW9 / P3 OFF/OPEN

SW9 / P4 OFF/OPEN

SW14 / P1

SW14 / P2 OFF/OPEN

SW17 / P1 OFF/OPEN

SW17 / P2 OFF/OPEN

SW17 / P3 OFF/OPEN

SW17 / P4 OFF/OPEN

SW19 / P1 ON/CLOSE

SW19 / P2 ON/CLOSE

SW19 / P3 ON/CLOSE

SW19 / P4 ON/CLOSE

SW28 / P3

Function LRADC6

SW9 / P1

SW9 / P2

SW9 / P3

SW9 / P4

SW14 / P1 OFF/OPEN

SW14 / P2

SW17 / P1

SW17 / P2

SW17 / P3

SW17 / P4

SW19 / P1

SW19 / P2

SW19 / P3

ConnectCore™ for i.MX28™ Hardware Reference

SW19 / P4

SW28 / P3 ON/CLOSE

Function LRADC6

ConnectCore™ for i.MX28™ Hardware Reference

AUART2 (TTL), AUART3 (TTL), CAN1, ETHERNET (ENET1), and USB Host (USB1)

AUART2 (TTL)

This header needs no switches to operate. The flow control for AUART2 is not connected to

the header (P2).

AUART3

This header is connected to header P3 through switch SW10.

CAN1

The CAN1 header is connected to D9 Header J20 through Switch SW15. A termination resistor

is also available on the development board and is connected through jumper P68.

ETHERNET

The ETHERNET (ENET1) header is connected to the ENET socket J51, using jumpers J5 and J6.

The LEDs for ENET1 are available through GPIOs using SW13.

USB HOST (USB1)

For modules without ENET1, USB1 is available and is connected to the USB socket J2 using

jumpers J5 and J6.

ConnectCore for i.MX53

Connector, Switch, and Jumper Locations

Variants with ENET1 do not have USB1 and variants with USB1 do not have ENET1.

ConnectCore for i.MX53

Function and Settings Table - AUART3

Function and Settings Table - CAN1

Function and Settings Table - ENET1

Function AUART3_RX AUART3_TX

SW10 / P1 ON/CLOSE

SW10 / P2 ON/CLOSE

SW13 / P1 OFF/OPEN

SW13 / P2 OFF/OPEN

SW15 / P1 OFF/OPEN

SW15 / P2 OFF/OPEN

P68

J5 / ETH1

J5 / USB1

J6 / ETH1

J6 / USB1

Function CAN1_RX CAN1_TX CAN1_TERMINATION

SW10 / P1 OFF/OPEN

SW10 / P2 OFF/OPEN

SW13 / P1 OFF/OPEN

SW13 / P2 OFF/OPEN

SW15 / P1 ON/CLOSE

SW15 / P2 ON/CLOSE

P68 SHORT

J5 / ETH1

J5 / USB1

J6 / ETH1

J6 / USB1

Function ENET1_SPEED_LED ENET1_ACTIVE_LED ENET1_RX+ ENET1_RX-

SW10 / P1 OFF/OPEN

SW10 / P2 OFF/OPEN

SW13 / P1 ON/CLOSE

ConnectCore for i.MX53

Function and Settings Table - USB1

AUART2 has no switches to set. If the CAN1 Termination is not needed, P68 can be left OPEN.

SW13 / P2 ON/CLOSE

SW15 / P1 OFF/OPEN

SW15 / P2 OFF/OPEN

P68

J5 / ETH1 SHORT

J5 / USB1 OPEN

J6 / ETH1 SHORT

J6 / USB1 OPEN

Function USB1_DM USB1_DP

SW10 / P1

SW10 / P2

SW13 / P1

SW13 / P2

SW15 / P1

SW15 / P2

P68

J5 / ETH1 OPEN

J5 / USB1 SHORT

J6 / ETH1 OPEN

J6 / USB1 SHORT

Function ENET1_SPEED_LED ENET1_ACTIVE_LED ENET1_RX+ ENET1_RX-

ConnectCore for i.MX53

SD CARD, SSP1, LRADC0, LRADC1, LRADC2, and LRADC3

SD CARD

The SD CARD socket P1 requires not switches to operate.

SSP1

SSP1 or SPI1 is connected to header P85 through switch SW16.

LRADC0, LRADC1, LRADC2 and LRADC3

LRADC0, LRADC1, LRADC2 and LRADC3 are connected to their associated potentiometers

through switch SW27. These functions are also available on Header P8.

Connector, Switch, and Jumper Locations

ConnectCore for i.MX53

Function and Settings Table - SSP1

Function and Settings Table - LRADC0-3

Function SSP1_MOSI SSP1_MISO SSP1_SCK SSP1_SSN

SW16 / P1 ON/CLOSE

SW16 / P2 ON/CLOSE

SW16 / P3 ON/CLOSE

SW16 / P4 ON/CLOSE

SW27 / P1 OFF/OPEN

SW27 / P2 OFF/OPEN

SW27 / P3 OFF/OPEN

SW27 / P4 OFF/OPEN

Function LRADC0 POT LRADC1 POT LRADC2 POT LRADC3 POT

SW16 / P1

SW16 / P2 OFF/OPEN

SW16 / P3 OFF/OPEN

SW16 / P4 OFF/OPEN OFF/OPEN

SW27 / P1 ON/CLOSE

SW27 / P2 ON/CLOSE

SW27 / P3 ON/CLOSE

SW27 / P4 ON/CLOSE

ConnectCore for i.MX53

CAN0, HSADC, AND1-Wire

CAN0

CAN0_RX is connected to D9 header J19 through jumper P38. No switch is needed for

CAN0_TX. The termination resistor is available on jumper P67

HSADC

The HSADC header (J21) is not populated on the development board.

1-Wire

1-Wire requires no switch to operate. An onboard 1-Wire EEPROM is provided for testing.

The EEPROM is connected to the 1-Wire interface using SW24 pos 1.

ConnectCore for i.MX53

Connector, Switch, and Jumper Locations

Function and Settings Table

1-Wire Header has no switches

CAN0_TX has no switches

HSADC0 Header is not populated

SW24 P2 is not connected

Function 1-WIRE

EEPROM

CAN0_RX CAN0_TERMINATION HS

ADC_TRIGGER

SW24 / P1 ON/CLOSE

P38 ON/CLOSE OFF/OPEN

P67 ON/CLOSE

ConnectCore for i.MX53

LCD, ETM, JTAG, USB OTG (USB0)

The locations of the LCD, ETM, JTAG and USB OTG (USB0) are shown below.

The USB OTG (USB0) can be operated with or without the OTG functionality. The USB0_ID

line is connected to the socket (J7) through jumper P39. A short to GND of the USB0_ID line

is available on jumper P37.

To operate the LCD, ETM and JTAG the 31 pin LCD cable must be connected from the

development board to the module.

Connector and Jumper Locations

Functions and Settings

LCD has no switches. To operate the touch screen OPEN P66.

JTAG has no switches

ETM has no switches

ConnectCore for i.MX53

LCD JTAG ETM ZIF connector is for the FFC 31 pin cable connecting these interfaces to the

CCi.MX28

Certifications

CHAPTER 3

Agency Certifications

United States FCC

The ConnectCard™ for i.MX28 Module complies with Part 15 of the FCC rules and

regulations. Compliance with the labeling requirements, FCC notices and antenna usage

guidelines is required.

To fulfill FCC Certification, the OEM must comply with the following regulations:

 The system integrator must ensure that the text on back side of the module is placed

on the outside of the final product.

 ConnectCard™ for i.MX28 RF Module may only be used with antennas that have been

tested and approved for use with this module [refer to the antenna tables in this

section].

OEM Labeling Requirements

WARNING: The Original Equipment Manufacturer (OEM) must ensure that FCC labeling

requirements are met. This includes a clearly visible label on the outside of the final product

enclosure that displays the contents shown in the figure below.

Required FCC Label for OEM products containing the ConnectCard™ for i.MX28 RF Module:

FCC Notices

IMPORTANT: The ConnectCard™ for i.MX28 RF Module has been certified by the FCC for use

with other products without any further certification (as per FCC section 2.1091).

Modifications not expressly approved by Digi could void the user's authority to operate the

equipment.

IMPORTANT: OEMs must test final product to comply with unintentional radiators (FCC

section 15.107 & 15.109) before declaring compliance of their final product to Part 15 of

the FCC Rules.

ConnectCore™ for i.MX28™ Hardware Reference

IMPORTANT: The ConnectCard™ for i.MX28 RF module has been certified for remote and base

radio applications. If the module will be used for portable applications, the device must

undergo SAR testing.

This equipment has been tested and found to comply with the limits for a Class B digital

device, pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable

protection against harmful interference in a residential installation. This equipment

generates uses and can radiate radio frequency energy, and if not installed and used in

accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation.

If this equipment does cause harmful interference to radio or television reception, which can

be determined by turning the equipment off and on, the user is encouraged to try to correct

the interference by one or more of the following measures: Re-orient or relocate the

receiving antenna, Increase the separation between the equipment and receiver, Connect

equipment and receiver to outlets on different circuits, or Consult the dealer or an

experienced radio/TV technician for help.

FCC-Approved Antennas

The ConnectCard™ for i.MX28 can be installed utilizing antennas and cables constructed with

non-standard connectors (RPSMA, RPTNC, etc.).

The modules are FCC approved for fixed base station and mobile applications for the

channels indicated in the tables below. If the antenna is mounted at least 20cm (8 in.) from

nearby persons, the application is considered a mobile application. Antennas not listed in the

table must be tested to comply with FCC Section 15.203 (Unique Antenna Connectors) and

Section 15.247 (Emissions).

ConnectCard™ for i.MX28: ConnectCard™ for i.MX28 RF Modules have been tested and

approved for use with all the antennas listed in the tables below. (Cable-loss is required

when using gain antennas as shown below.)

The antennas in the tables below have been approved for use with this module. Digi does not

carry all of these antenna variants. Contact Digi Sales for available antennas.

ConnectCore for i.MX28 Hardware Reference

Antennas Approved for Use with the ConnectCard™ for i.MX28 Wi-Fi Modules

Note: * If using the RF module in a portable application (for example - if the module is used in a handheld device and the antenna is less than

20cm from the human body when the device is in operation): The integrator is responsible for passing additional SAR (Specific

Absorption Rate) testing based on FCC rules 2.1091 and FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic

Fields, OET Bulletin and Supplement C. The testing results will be submitted to the FCC for approval prior to selling the integrated

unit. The required SAR testing measures emissions from the module and how they affect the person.

RF Exposure

The preceding statement must be included as a CAUTION statement in OEM product manuals

in order to alert users of FCC RF Exposure compliance.

Europe (ETSI)

The ConnectCard™ for i.MX28 Module has been certified for use in several European

countries. For a complete list, refer to www.digi.com

If the ConnectCard™ for i.MX28 RF Modules are incorporated into a product, the

manufacturer must ensure compliance of the final product to the European harmonized EMC

OMNI-DIRECTIONAL ANTENNAS

Part Number Type

(Description)

Peak Gain Application Cable loss/

Attenuation

required

A24-HASM-450 Dipole

(articulated RPSMA, 2.4GHz antenna)

1.8dBi Fixed/Mobile

29000146 Dipole

(articulated RPSMA, 2.4GHz and 5GHz

antenna)

5dBi Fixed/Mobile

Taoglas PC.11.07.0100A The Stripe Omni-directional antenna 3dBi 2

2.4GHz

4.5dBi @

5GHz

Fixed/Mobile

Taoglas

FXP.830.07.0100C

Dipole 2.6dBi @

2.4GHz

5dBi @

5GHz

Fixed/Mobile

ConnectCore for i.MX28 Hardware Reference

and low-voltage/safety standards. A Declaration of Conformity must be issued for each of

these standards and kept on file as described in Annex II of the R&TTE Directive.

Furthermore, the manufacturer must maintain a copy of the ConnectCard™ for i.MX28

Hardware Reference manual documentation and ensure the final product does not exceed

the specified power ratings, antenna specifications, and/or installation requirements as

specified in the user manual. If any of these specifications are exceeded in the final product,

a submission must be made to a notified body for compliance testing to all required

standards.

OEM Lebeling Requirements

The ‘CE’ marking must be affixed to a visible location on the OEM product.

CE Labeling Requirements

The CE mark shall consist of the initials "CE" taking the following form:

• If the CE marking is reduced or enlarged, the proportions given in the above

graduated drawing must be respected.

• The CE marking must have a height of at least 5mm except where this is not

possible on account of the nature of the apparatus.

• The CE marking must be affixed visibly, legibly, and indelibly.

Restrictions

Declarations of Conformity

Digi has issued Declarations of Conformity for the ConnectCard™ for i.MX28 RF Modules

concerning emissions, EMC and safety. Files can be obtained by contacting Digi Support.

Important Note:

Digi does not list the entire set of standards that must be met for each country. Digi

customers assume full responsibility for learning and meeting the required guidelines for

each country in their distribution market. For more information relating to European

compliance of an OEM product incorporating the ConnectCard™ for i.MX28 RF Module,

contact Digi, or refer to the following web sites:

ConnectCore for i.MX28 Hardware Reference

• CEPT ERC 70-03E - Technical Requirements, European restrictions and general

requirements: Available at www.ero.dk/.

• R&TTE Directive - Equipment requirements, placement on market: Available at

www.ero.dk/.

Approved Antennas

The same antennas have been approved for Europe as stated in the FCC table for use with

the ConnectCard™ for i.MX28 Module.

Canada (IC)

This device complies with Industry Canada license-exempt RSS standard(s). Operation is

subject to the following two conditions: (1) this device may not cause interference, and (2)

this device must accept any interference, including interference that may cause undesired

operation of the device.

Le présent appareil est conforme aux CNR d'Industrie Canada applicables aux appareils radio

exempts de licence. L'exploitation est autorisée aux deux conditions suivantes : (1)

l'appareil ne doit pas produire de brouillage, et (2) l'utilisateur de l'appareil doit accepter

tout brouillage radioélectrique subi, même si le brouillage est susceptible d'en

compromettre le fonctionnement.

Labeling Requirements

Labeling requirements for Industry Canada are similar to those of the FCC. A clearly visible

label on the outside of the final product enclosure must display the following text:

Contains Model ConnectCard™ for i.MX28 Radio, IC: 1846A-CCi.MX28

The integrator is responsible for its product to comply with IC ICES-003 & FCC Part 15, Sub. B

- Unintentional Radiators. ICES-003 is the same as FCC Part 15 Sub. B and Industry Canada

accepts FCC test report or CISPR 22 test report for compliance with ICES-003.

Transmitters with Detachable Antennas

This radio transmitter (IC: 1846A-CCi.MX28) has been approved by Industry Canada to

operate with the antenna types listed in the table above with the maximum permissible gain

and required antenna impedance for each antenna type indicated. Antenna types not

included in this list, having a gain greater than the maximum gain indicated for that type, are

strictly prohibited for use with this device.

Le présent émetteur radio (IC: 1846A-CCi.MX28) a été approuvé par Industrie Canada pour

fonctionner avec les types d'antenne énumérés ci-dessous et ayant un gain admissible

maximal et l'impédance requise pour chaque type d'antenne. Les types d'antenne non inclus

dans cette liste, ou dont le gain est supérieur au gain maximal indiqué, sont strictement

interdits pour l'exploitation de l'émetteur.

ConnectCore for i.MX28 Hardware Reference

Detachable Antenna

Under Industry Canada regulations, this radio transmitter may only operate using an antenna

of a type and maximum (or lesser) gain approved for the transmitter by Industry Canada. To

reduce potential radio interference to other users, the antenna type and its gain should be so

chosen that the equivalent isotropically radiated power (e.i.r.p.) is not more than that

necessary for successful communication.

Conformément à la réglementation d'Industrie Canada, le présent émetteur radio peut

fonctionner avec une antenne d'un type et d'un gain maximal (ou inférieur) approuvé pour

l'émetteur par Industrie Canada. Dans le but de réduire les risques de brouillage

radioélectrique à l'intention des autres utilisateurs, il faut choisir le type d'antenne et son

gain de sorte que la puissance isotrope rayonnée équivalente (p.i.r.e.) ne dépasse pas

l'intensité nécessaire à l'établissement d'une communication satisfaisante.

Australia (C-Tick)

These modules comply with requirements to be used in end products in Australia. All

products with EMC and radio communications must have a registered C-Tick mark.

Registration to use the compliance mark will only be accepted from Australian manufacturers

or importers, or their agent, in Australia.

In order to have a C-Tick mark on an end product, a company must comply with a or b below.

ahave a company presence in Australia.

bhave a company/distributor/agent in Australia that will sponsor the importing of the

end product.

Contact Digi for questions related to locating a contact in Australia.

Module Specifications

APPENDIX A

Mechanical Specifications

Dimensional Drawing

Environmental Specifications

*Operating temperatures above 65ºC may require additional thermal management

considerations as part of the module integration. See the Thermal Considerations section

in this document for details.

Operating temperature: -40ºC to +85ºC*

Storage temperature: -40ºC to +125ºC

ConnectCore™ for i.MX28 Hardware Reference

Network Interface

Digi part number A24-HASM-450

Antenna Attributes

Dimensions

Note:

Dimensions are provided for reference purposes only. The actual antenna may vary.

Specification Attribute

Frequency Range 2.4 - 2.5 GHz

Gain 1.8dBi

VSWR 2.0 Max

Connector Reverse Male SMA (RPSMA)

Impedance 50 Ω

Temperature RP-SMA

Gain -20ºC to +80ºC

Return Loss -9.5dB

Weight 27g

Dimensions 10.6 x 87.4 mm

ConnectCore™ for i.MX28 Hardware Reference

Digi part number 29000146

Antenna Attributes

Dimensions

Note:

Dimensions are provided for reference purposes only. The actual antenna may vary.

Specification Attribute

Frequency Range 2.4 - 2.5 GHz, 5.15 - 5.825 GHz

Gain 5 dBi Max

VSWR 1.9 Typical

Connector Reverse Male SMA (RPSMA)

Impedance 50 Ω

Temperature Rating -20°C to +80° C

Dimensions 104.9 x 11 mm

ConnectCore™ for i.MX28 Hardware Reference

VSWR Chart

Taoglas PC.11.07.0100A

Antenna Attributes

Specification 2.4 GHzAttribute 5GHz Attribute

Frequency Range 2.4 - 2.5 GHz 4.9 - 5.9 GHz

Peak Gain 3 dBi 4.5 dBi

Average Gain (on plastic) -0.6 dBi -0.5 dBi

VSWR 1.5

Connector u.FL

Impedance 50 Ω

Temperature -40°C to +85° C

Dimensions 66 x 15 mm (excluding cable)

ConnectCore™ for i.MX28 Hardware Reference

Dimensions

Note:

Dimensions are provided for reference purposes only. The actual antenna may vary.

ConnectCore™ for i.MX28 Hardware Reference

Taoglas FXP.830.07.0100C

Antenna Attributes

VSWR Chart

Specification 2.4 GHzAttribute 5GHz Attribute

Frequency Range 2.4 - 2.5 GHz 4.9 - 5.9 GHz

Peak Gain (free space) 1.8 dBi 3.6 dBi

Peak Gain (on plastic) 2.6 dBi 5.0 dBi

Average Gain (free space) -3.0 dBi -0.6 dBi

Average Gain (on plastic) -3.0 dBi -0.7 dBi

VSWR (free space, on plastic See chart below

Connector u.FL

Impedance 50 Ω

Temperature -40°C to +85° C

Dimensions 42 x 7 mm (excluding cable)

ConnectCore™ for i.MX28 Hardware Reference

Dimensions

Note:

Dimensions are provided for reference purposes only. The actual antenna may vary.

ConnectCore™ for i.MX28 Hardware Reference

Ethernet 1

Ethernet 2

WLAN

Standard

IEEE 802.11a/b/g/n standards

HT20, and HT40 IEEE 802.11n

Frequency Band

2.40 - 2.50 GHz ( Low Band )

5.18 - 5.825 GHz ( High Band )

Data Rates

802.11b: 1, 2, 5.5, 11 Mbps

802.11a/g: 6, 9, 12, 18, 24, 35, 48, 54 Mbps

802.11n HT20 FGI: 6.5, 13, 19.5, 26, 39, 52, 58.5, 65 Mbps

802.11n HT20 HGI: 7.2, 14.4, 21.7, 29.9, 43.3, 57.8, 65, 72.2 Mbps

802.11n HT40 FGI (5GHz only): 13.5, 27, 40.5, 54, 81, 108, 121.5, 135 Mbps

802.11n HT40 HGI (5GHz only): 15, 30, 45, 60, 90, 120, 135, 150 Mbps

Standard: IEEE802.3

Physical layer: 10/100Base

Data rate: 10/100 Mbps

Standard: IEEE802.3

Physical layer: 10/100Base

Data rate: 10/100 Mbps

ConnectCore™ for i.MX28 Hardware Reference

Modulation

Security

Cisco CCXv4 ASD

WAPI (for China)

WPS

WEP

WPA

WPA2

Mode Data

Rate

Modulation Mode Data

Rate

Modulation Mode Data

Rate

Modulation

802.11b 1 DBPSK 802.11g 6 BPSK 802.11a 6 BPSK

2 DQPSK 9 BPSK 9 BPSK

5.5 CCK 12 QPSK 12 QPSK

11 CCK 18 QPSK 18 QPSK

24 16-QAM 24 16-QAM

35 16-QAM 35 16-QAM

48 64-QAM 48 64-QAM

54 64-QAM 54 64-QAM

Mode MCS Modulation Data Rate

802.11n HT20 (2.4GHz and 5GHz) HT40 (5GHz only)

FGI HGI FGI HGI

MCS0 BPSK 6.5 7.2 13.5 15

MCS1 QPSK 13 14.4 27 30

MCS2 QPSK 19.5 21.7 40.5 45

MCS3 16-QAM 26 29.9 54 60

MCS4 16-QAM 39 43.3 81 90

MCS5 64-QAM 52 57.8 108 120

MCS6 64-QAM 58.5 65 121.5 135

MCS7 64-QAM 65 72.2 135 150

ConnectCore™ for i.MX28 Hardware Reference

Frequency Bands

US, Canda

2.412 to 2.462 GHz; 11 channels

5.180 to 5.320 GHz; 8 channels

5.500 to 5.700 GHz, 8 channels (excludes 5.600 to 5.650 GHz)

5.745 to 5.825 GHz; 5 channels

Europe

2.412 to 2.472 GHz; 13 channels

5.180 to 5.320 GHz; 8 channels

5.500 to 5.700 GHz, 8 channels (excludes 5.600 to 5.640 GHz)

Australia, New Zealand

2.412 to 2.462 GHz; 11 channels

5.180 to 5.320 GHz; 8 channels

5.745 to 5.825 GHz; 5 channels

Japan

2.412 to 2.472 GHz; 13 channels

5.180 to 5.320 GHz; 8 channels

5.500 to 5.700 GHz; 11 channels

ConnectCore™ for i.MX28 Hardware Reference

5GHz HT20 AND HT40 Channels Available

Channel

Number

Frequency Mode Secondary Channel Allowed

36 2180 HT40 PLUS

38 5190 HT20

40 5200 HT40 MINUS

44 5220 HT40 PLUS

46 5230 HT20

48 5240 HT40 MINUS

52 5260 HT40 PLUS

54 5270 HT20

56 5280 HT40 MINUS

60 5300 HT40 PLUS

62 5310 HT20

64 5320 HT40 MINUS

100 5500 HT40 PLUS

102 5510 HT20

104 5520 HT40 MINUS

108 5540 HT40 PLUS

110 5550 HT20

112 5560 HT40 MINUS

116 5580 HT40 PLUS

118 5590 HT20

120 5600 HT40 MINUS

124 5620 HT40 PLUS

126 5630 HT20

128 5640 HT40 MINUS

132 5660 HT40 PLUS

134 5670 HT20

136 5680 HT40 MINUS

140 5700 HT20

149 5745 HT40 PLUS

151 5755 HT20

153 5765 HT40 MINUS

ConnectCore™ for i.MX28 Hardware Reference

Receive Sensitivity

Electrical Characteristics

Absolute Maximum Ratings

Note that other nterfaces not specifically mentioned are the same as GPIOs.

157 5785 HT40 PLUS

159 5795 HT20

161 5805 HT40 MINUS

165 5825 HT20

Network Type Sensitivity

802.11 b -88 dBm

802.11 g -88 dBm

802.11 n (2.4 GHz) -89 dBm

802.11 a -90 dBm

802.11 n (5 GHz, 20 MHz Bandwidth) -90 dBm

802.11 n (5 GHz, 40 MHz Bandwidth) -86 dBm

Parameter Min Max Unit

VDD_5V -0.3 5.25 V

Battery -0.3 4.242 V

Pswitch -0.3 Battery/2 V

USB DP and DN -0.3 3.63 V

GPIO -0.3 3.6 V

Ethernet TX +/- and RX +/- -0.5 4 V

Channel

Number

Frequency Mode Secondary Channel Allowed

ConnectCore™ for i.MX28 Hardware Reference

Voltage Supplies

Supply Current

Tra nsm it P owe r

GPIO DC Parameters

Parameter Min Typ Max Unit

5V Supply 4.75 55.25 V

Battery Supply 3.4 4.2 V

Settings Supply Current

Wi-Fi 2.4 GHz Transmit, CPU 545 MHz, 50%,

UART active

475 mA

Wi-Fi 5 GHz Transmit, CPU 545 MHz, 50%,

UART active

600 mA

Wi-Fi 5 GHz Recieve CPU Idle (Auto Slow) 300 mA

Wi-Fi 2.4 GHz Recieve CPU Idle (Auto Slow) 325 mA

Network Type Transmit Power

802.11 b 10.5 dBm

802.11 g/n 11 dBm

802.11 a/n 13 dBm

Parameter Min Max Unit

Input Voltage high (DC) 23.3 V

Input Voltage low (DC) -0.8 V

Output Voltage high (DC) 4.64 - V

Output Voltage low (DC) -0.4 V

Output Source Current (DC) gpio, gpio_f and gpio_nobs

4mA setting 3.8 6.8 mA

8mA setting 7.6 13.6 mA

12mA setting 12.1 24.5 mA

Output Sink Current (DC) gpio, gpio_f, and gpio_nobs

4mA setting 48.1 mA

8mA setting 8.1 16.4 mA

12mA setting 12.1 24.5 mA

ConnectCore™ for i.MX28 Hardware Reference

See the Freescale i.MX28 data sheet and manual for full details.

Agency Approvals

Output Source Current (DC) gpio_clk

8mA setting 7.6 13.6 mA

16mA setting 15.2 27.2 mA

Output Sink Current (DC) gpio_clk

8mA setting 8.1 15.4 mA

16mA setting 16.2 30.6 mA

10k pull-up resistance 812 kΩ

47k pull-up resistance 39 56 kΩ

Specification ConnectCard™ for i.MX28

United States (FCC Part 15.247) FCC ID: MCQ-CCIMX28

Industry Canada (IC) IC: 1846A-CCIMX28

Europe (DC) ETSI

Australia Pending

Japan Pending

UR Pending

VCCI Pending

Parameter Min Max Unit

Module Dimensions

APPENDIX B

Change Log

APPENDIX C

The following changes were made to this document in the revisions listed below.

Revision 0.1

Creation.

Revision 0.2

Correction of FCC and IC approval IDs.

Digi CCIMX28 802.11a/b/g/n Embedded Client Module User Manual ConnectCore for i MX28 HRM

Digi International Inc 802.11a/b/g/n Embedded Client Module ConnectCore for i MX28 HRM

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