Digi ConnectCore Quick user guide

ConnectCore®
for i.MX51
Hardware Reference Manual

Revision history—90001128
Revision Date Description
M May, 2014 Correct inaccuracy and sharpen clarity on the high temp start up issue.
N November,
2014
Miscellaneous editorial updates. Updated the voltages for the table in Coin
cell input (VCC_COINCELL). Added a table of related publications.
P June, 2017 Updated branding and added statements for RED compliance.
R April, 2018 Added coin cell input topic.
S January,
2019
Added backdrive caution.
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property of their respective owners.
© 2019 Digi International Inc. All rights reserved.
Disclaimers
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, 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.
Warranty
To view product warranty information, go to the following website:
www.digi.com/howtobuy/terms
Customer support
Gather support information: Before contacting Digi technical support for help, gather the following
information:
Product name and model
Product serial number (s)
Firmware version
Operating system/browser (if applicable)
Logs (from time of reported issue)
Trace (if possible)
Description of issue
Steps to reproduce
ConnectCore for i.MX51 Hardware Reference Manual 2

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Contact us at +1 952.912.3444 or visit us at www.digi.com/support.
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ConnectCore for i.MX51 Hardware Reference Manual 3

Contents
About the module
Features and functionality 9
Module variant 10
Block diagram 11
CPU 11
Module 11
Module pinout 13
Pinout legend 13
Pinout definitions 13
J1 pinout 14
J2 pinout 27
Power 41
Module power supplies 41
Supply inputs 41
Supply outputs 42
MC13892 power management 43
Memory 44
DDR2 SDRAM memory 44
NAND flash memory 44
Chip selects 45
Chip select memory map 45
Multiplexed GPIO 46
GPIO multiplexing table 46
Interfaces 51
1-Wire 51
Accelerometer 51
ADC and touch screen 51
Synchronous Serial Interface (SSI) 52
External Memory Interface (EMI) 53
Ethernet 1 53
Ethernet 2 54
I2C 54
Video subsystem 55
Video Processing Unit (VPU) 55
Image Processing Unit (IPU) 56
Keypad 57
Memory cards 58
PWM 59
RTC 59
SPDIF 59
SPI 60
ConnectCore for i.MX51 Hardware Reference Manual 4

ConnectCore for i.MX51 Hardware Reference Manual 5
Watchdog timer 60
UART 60
USB Host and USB OTG 61
WLAN 61
About the development board
About the development board 65
The development board 66
Switches and push-buttons 67
Power switch, S2 67
Reset button, S4 67
Power button, S11 67
User buttons, S3 and S5 68
Ident button, S10 68
Legend for multi-position switches 68
UART 1 switch, S6 68
UART 2 switch, S7 69
Boot configuration switches, S8 and S9 69
Jumpers 71
Battery enable, J5 71
Module power source, P29 71
LED 1, J16 71
LED 2, J9 72
Button 1, J28 72
Button 2, J29 72
UART3 / XBee selection, J30 and J31 72
WLAN disable, J17 72
Touch selection, J20 72
Coincell enable, J3 72
JTAG mod., J4 72
LEDs 73
WLAN, LE12 73
Power LEDs, LE3, LE4, LE6 and LE7 73
User LEDs, LE49 and LE51 74
Serial status LEDs 74
UART 1 status LEDs 74
UART 2 status LEDs 74
XBee Associate, LE50 74
Audio interface 75
Line-out connector pinout, J18 76
Line-in connector pinout, J12 76
Microphone connector pinout, J15 76
Coin cell battery 77
Camera interfaces 78
X15 pinout 79
X17 pinout 79
Digital IO interface 80
Digital I/O connector, X45 80
Ethernet 1 interface 81
Ethernet 1, RJ-45 connector X7 82
Ethernet 2 interface 83
Ethernet 2, connector J17 83
HDMI interface 85
HDMI connector, J19 85

ConnectCore for i.MX51 Hardware Reference Manual 6
I2C interface 87
I2C header, P22 87
JTAG interface 89
Standard JTAG ARM connector, X13 89
LCD interfaces 90
LCD 1 connector, P1 91
P1 pinout 91
LCD 2 connector, P2 92
P2 pinout 93
MicroSD™ card interface 95
MicroSD connector, X14 95
Module connectors and signal rails 97
Module connectors 97
Signal rails, J25 and J26 97
J25 pinout 98
J26 pinout 100
Peripheral application header 104
Peripheral application header, P21 104
Power-Over-Ethernet (PoE) - IEEE802.3af 106
The PoE module 107
PoE connector (power in), P17 107
PoE connector (power out), P18 107
Main power connector 108
SD-card interface 109
SD/MMC connector, X18 109
SPI interface 111
SPI header, P24 111
UART interface 113
Serial port 2, RS232, X27 113
Serial port 1, MEI interface, X30 114
Serial port 3, TTL interface, X19 114
USB host interface 116
USB host connectors, J8 and J10 116
USB OTG interface 117
USB OTG connector, J11 117
User interface 118
Analog video interface 119
Analog video connector, X32 119
WLAN interface 121
Antenna connectors (WLAN) 121
Digi XBee interface 123
Digi XBee module connectors, X28 and X29 123
Module specifications
Mechanical specifications 126
Fasteners and appropriate torque 126
Environmental specifications 126
Network interface 126
Antenna specifications: 802.11 a/b/g antenna 126
Antenna specification: 802.11b/g antenna 127
Ethernet 1 128
Ethernet 2 129
WLAN 129
Electrical characteristics 131

ConnectCore for i.MX51 Hardware Reference Manual 7
Charger vs. battery 131
Supply voltages 132
Supply current 132
On-module power supplies 133
I/O DC parameters 134
Module dimensions
Top view 139
Bottom view 140
Side view 141
Connectors 141
Regulatory information
Federal Communication (FCC) regulatory information (USA only) 142
RF exposure 142
Modifications (FCC 15.21) 143
Industry Canada 143
Indoor/outdoor 143
Japan certification 143
Declaration of Conformity (DoC) 144
CE mark (Europe) 144
International EMC standards 145
Maximum power and frequency specifications

About the module
The network-enabled ConnectCore for i.MX51 is a highly integrated System-on-Module (SOM) solution
based on the new Freescale®i.MX51X application processor with a high-performance ARM®Cortex-A8®
core, powerful multimedia options, and a complete set of peripherals.
The module combines the fast integration, reliability and design flexibility of an off-the-shelf SOM with
complete out-of-the-box software development support for platforms such as Microsoft®Windows®
Embedded CE 6.0, Windows Embedded Compact 7Digi®Embedded Linux®and Timesys®LinuxLink®.
With industry-leading performance and key features like a dual-display interface and a hardware
encryption engine, the module is the ideal choice for a broad range of target markets including
medical, digital signage, security/access control, retail, industrial/building automation, transportation
and more.
Complete and cost-efficient Digi JumpStart Kits™ for Microsoft Windows Embedded CE 6.0 and Linux
allow immediate and professional embedded product development with dramatically reduced design
risk and time-to-market.
Features and functionality 9
Block diagram 11
Module pinout 13
Power 41
Memory 44
Chip selects 45
Multiplexed GPIO 46
ConnectCore for i.MX51 Hardware Reference Manual 8

Features and functionality
The ConnectCore for i.MX51 module is based on the i.MX51 processor from Freescale. This processor
offers a high number of interfaces. Most of these interfaces are multiplexed and are not available
simultaneously. The module has the following features:
nHigh-end, low-power 32-bit System-on-Module
n600/800 MHZ ARM Cortex-A8 core
l32 kB L1 instruction and 32 kB L1 data cache
l256 kB L2 cache
lNEON co-processor
lVector Floating Point (VFP) unit
nSLC and MLC NAND flash support on module
nUp to 512 MB 32-bit/200 MHZ DDR2-400 memory
nDebug interfaces
lJoint Test Action Group (JTAG)
lEmbedded Trace Macrocell™ (ETM) / Embedded Trace Buffer (ETB)
nReal Time Clock (RTC)
nSecurity co-processor
lEncryption: Advanced Encryption Standard (AES), Data Encryption Standard (DES), 3DES and
RC4
lHashing algorithms: Message Digest (MD)5, Secure Hash Algorithm (SHA)-1, SHA-224 and
SHA-256
nTimer
nWatchdog
nUp to three universal asynchronous receiver/transmitter (UART) ports, up to 4 Mb/s each
nUp to three Serial Peripheral Interface (SPI), two of them up to 54 Mb/s each
nTwo Inter-Integrated Circuit (I2C) (up to 400 kb/s)
nThree memory card interfaces (two for the wireless version of the module)
lSD/Secure Digital Input Output (SDIO) - 1 and 4-bits (up to 200 Mb/s)
lMultiMediaCard (MMC) - 1, 4 and 8-bits (up to 416 Mb/s)
nUSB
nUp to 3x USB 2.0 High-Speed USB Host ports
nOne USB 2.0 On-The-Go USB port with integrated Physical Layer (PHY) on the module
n1-wire
nKeypad 6x4
ConnectCore for i.MX51 Hardware Reference Manual 9

About the module Features and functionality
ConnectCore for i.MX51 Hardware Reference Manual 10
nTwo independent pulse-width modulation (PWM) interfaces
n8, 16-bit External Memory interface
nGeneral-purpose input/output (GPIO) with interrupt capabilities
nUp to 3x 10-bit analog-to-digital converter (ADC) channels
nMultimedia
l2x Camera ports
l2x Display ports
l4-wire touch screen
nSony/Philips Digital Interface Forma (SPDIF) output
nThree I2S / Audio Codec '97 (AC’97) / Synchronous Serial Interfaces (SSI), up to 1.4Mb/s each
nOn-module three axis accelerometer (optional)
nOn-module 10/100 Ethernet controller (optional)
nSecond on-module 10/100Mb Ethernet interface (optional)
n2.4 GHz and 5 GHz Institute of Electrical and Electronics Engineers (IEEE) 802.11a/b/g/n
wireless local area network (LAN) interface (optional)
nComplete Microsoft Windows Embedded CE 6.0 and Linux platform support with full source
code
Module variant
The ConnectCore for i.MX51 module is available with various population options such as network
interfaces (Ethernet, wireless local area network [WLAN]), memory (flash, random-access memory
[RAM]), processor (speed grade/operating temperature) and others.

About the module Block diagram
ConnectCore for i.MX51 Hardware Reference Manual 11
Block diagram
The next figures show the block diagram of the Freescale i.MX515 central processing unit (CPU) and
the block diagram of the ConnectCore for i.MX51 module.
CPU
Freescale i.MX515
Module
ConnectCore I.MX51

About the module Block diagram
ConnectCore for i.MX51 Hardware Reference Manual 12

About the module Module pinout
ConnectCore for i.MX51 Hardware Reference Manual 13
Module pinout
The module has two 180-pin connectors, J1 and J2. The following tables describe each pin, its
properties, and its use on the module and development board. The DC parameters for each I/O type
are defined in the I/O DC parameters.
The “Use on module” column shows the connection of the signals on the module. The format of this
column is “component: pad_name,” where “component” is the chip where the signals are connected,
and “pad_name” is the name of the pad where the signals are connected as they are defined in the
component’s datasheet.
Pinout legend
I Input
O Output
IO Input or output
P Power
# Low level active signal
Pinout definitions
GPIO - General Purpose IO
UHVIO - Ultra High Voltage IO
HSGPIO - High Speed GPIO
LVIO - Low Voltage IO (meaning 1.8V)
The I/O Type descriptions can be read as follows:
n18 - 1.8V logic level switching (for example, GPIO18)
n27 - 2.775V logic level switching (for example, GPIO27)
n31 - 3.15V logic level switching (for example, UHVIO31)
n33 - 3.3V logic level switching (for example, UHVIO33)
The microprocessor used on this module, like all CMOS devices, can be driven into a latch-
up condition if any I/O pin is driven outside of its associated power rail. Care must be taken
to:
nNever drive an I/O pin beyond its positive rail or below ground.
nNever drive an I/O pin from an external power source during the power-on or reset
sequences.
nNever hot-swap the module or interrupt its ground connection to external circuitry.
Latch-up is a condition that can cause excessive current draw and result in excessive
heating of the microprocessor or its power supplies. This excessive heating can
permanently damage the microprocessor and/or its supporting components.

About the module Module pinout
ConnectCore for i.MX51 Hardware Reference Manual 14
J1 pinout
Pin I/O Type Signal name Use on module Use on
development
board
Comments
J1:1 GPIO27 CSI1_D8/GPIO3_12 i.MX51: CSI1_D8 Not used
J1:2 GPIO27 CSI1_D9/GPIO3_13 i.MX51: CSI1_D9 Camera 1
reset
J1:3 HSGPIO2
7
CSI1_D10 i.MX51: CSI1_D10 Camera 1 data
J1:4 HSGPIO2
7
CSI1_D11 i.MX51: CSI1_D11 Camera 1 data
J1:5 HSGPIO2
7
CSI1_D12 i.MX51: CSI1_D12 Camera 1 data
J1:6 HSGPIO2
7
CSI1_D13 i.MX51: CSI1_D13 Camera 1 data
J1:7 HSGPIO2
7
CSI1_D14 i.MX51: CSI1_D14 Camera 1 data
J1:8 HSGPIO2
7
CSI1_D15 i.MX51: CSI1_D15 Camera 1 data
J1:9 HSGPIO2
7
CSI1_D16 i.MX51: CSI1_D16 Camera 1 data
J1:10 HSGPIO2
7
CSI1_D17 i.MX51: CSI1_D17 Camera 1 data
J1:11 HSGPIO2
7
CSI1_D18 i.MX51: CSI1_D18 Camera 1 data
J1:12 HSGPIO2
7
CSI1_D19 i.MX51: CSI1_D19 Camera 1 data
J1:13 GPIO27 CSI1_VSYNC/GPIO3_14 i.MX51: CSI1_
VSYNC
Camera 1
vertical
synchronizatio
n
J1:14 GPIO27 CSI1_HSYNC/GPIO3_15 i.MX51: CSI1_
HSYNC
Camera 1
horizontal
synchronizatio
n
J1:15 GPIO27 CSI1_PIXCLK i.MX51: CSI1_
PIXCLK
Camera 1 pixel
clock
J1:16 GPIO27 CSI1_MCLK i.MX51: CSI1_MCLK Camera 1 and
2 Master clock

About the module Module pinout
ConnectCore for i.MX51 Hardware Reference Manual 15
Pin I/O Type Signal name Use on module Use on
development
board
Comments
J1:17 - GND - -
J1:18 - GND - -
J1:19 WLAN WLAN_TDO WLAN: TDO Not used
J1:20 WLAN WLAN_TCK WLAN: TCK Not used
J1:21 WLAN WLAN_TDI WLAN: TDI Not used
J1:22 WLAN WLAN_TMS WLAN: TMS Not used
J1:23 WLAN WLAN_LED WLAN: LED_ON WLAN light-
emitting diode
(LED)
J1:24 WLAN RS_BT_PRIORITY WLAN: BT_
PRIORITY
Not used
J1:25 WLAN RS_WLAN_ACTIVE WLAN: WLAN_
ACTIVE
Not used
J1:26 WLAN RS_BT_ACTIVE WLAN: BT_ACTIVE Not used
J1:27 LVIO BOOT_MODE0 i.MX51: BOOT_
MODE0
Boot Mode
selection
Boot
configuratio
n not
available in
EA Kit
J1:28 GPIO33 WLAN_DISABLE# WLAN Power
Supply Switch
WLAN Disable
Jumper (J17)
This signal
switch
ON/OFF the
supply of
WLAN
J1:29 LVIO BOOT_MODE1 i.MX51: BOOT_
MODE1
Boot Mode
selection
Boot
configuratio
n not
available in
EA Kit
J1:30 - VLIO MC13892: BATT Battery supply
J1:31 - VLIO MC13892: BATT Battery supply
J1:32 - VCHRG MC13892:
CHRGRAW
Charger supply
J1:33 - +2.775V - -

About the module Module pinout
ConnectCore for i.MX51 Hardware Reference Manual 16
Pin I/O Type Signal name Use on module Use on
development
board
Comments
J1:34 - VCHRG MC13892:
CHRGRAW
Charger supply
J1:35 - +2.775V - -
J1:36 - +2.775V - -
J1:37 PMIC_
GPO
MC13892_GPO1 MC13892: GPO1 Reserved
J1:38 - +2.775V - -
J1:39 PMIC_
PWRON
PMIC_PWRON1 MC13892:
PWRON1
Connected to
Power Button
(S11)
Suspend /
Wake-up
button
J1:40 PMIC_
STDBY
PMIC_STDBY_REQ i.MX51: PMIC_
STBY_REQ
MC13892:
STANDBY
Reserved Output from
i.MX51 to
put
MC13892 in
low power
mode
J1:41 PMIC_
INT
PMIC_INT_REQ i.MX51: PMIC_INT_
REQ
Reserved This high-
priority
interrupt
input on
i.MX51 is not
used. The
output
interrupt
from PMIC is
connected
to standard
interrupt
GPIO_5 on
i.MX51.
J1:42 PMIC_
PWGTDRV
PWRGTDRV1 MC13892:
PWRGTDRV1
Not used
J1:43 PMIC_
LED
CHRGLED MC13892:
CHRGLED
Battery
Charging LED
J1:44 PMIC_
PWGTDRV
PWRGTDRV2 MC13892:
PWRGTDRV2
+3.3V_REG:
ENABLE
Not used Used on
module to
enable /
disable the
+3.3V supply

About the module Module pinout
ConnectCore for i.MX51 Hardware Reference Manual 17
Pin I/O Type Signal name Use on module Use on
development
board
Comments
J1:45 PMIC_SE CHRGSE1# MC13892:
CHRGSE1#
Charger
detection
circuit
This circuit
is needed to
boot from
charger
J1:46 - VCC_COINCELL MC13892: LICELL Coincell
voltage
J1:47 - VLIO MC13892: BATT Battery supply
J1:48 - VCHRG MC13892:
CHRGRAW
Charger supply
J1:49 - VLIO MC13892: BATT Battery supply
J1:50 - VCHRG MC13892:CHRGRA
W
Charger supply
J1:51 - VLIO MC13892: BATT Battery supply
J1:52 - VCHRG MC13892:CHRGRA
W
Charger supply
J1:53 ETH ETH1_TX+ ETH_PHY: TXP Ethernet 1 Tx+
J1:54 ETH ETH1_RX+ ETH_PHY: RXP Ethernet 1 Rx+
J1:55 ETH ETH1_TX- ETH_PHY: TXN Ethernet 1 Tx-
J1:56 ETH ETH1_RX- ETH_PHY: RXN Ethernet 1 Rx-
J1:57 - GND - -
J1:58 GPIO33 ETH1_LINK ETH_PHY: LED1 Ethernet 1
Link LED
J1:59 GPIO27 DISPB2_SER_DIN/GPIO3_
5
i.MX51: DISPB_2_
SER_DIN
GPIO1 signal
to LCD
connectors
J1:60 GPIO33 ETH1_ACTIVITY ETH_PHY: LED2 Ethernet 1
Activity LED
J1:61 GPIO27 DISPB2_SER_RS/GPIO3_8 i.MX51: DISPB2_
SER_RS
USB Host
Reset
In Early
Availability
Kit USB host
and Digital
IO interface
cannot be
used at the
same time.

About the module Module pinout
ConnectCore for i.MX51 Hardware Reference Manual 18
Pin I/O Type Signal name Use on module Use on
development
board
Comments
J1:62 GPIO27 DISPB2_SER_DIO/GPIO3_
6
i.MX51: DISPB2_
SER_DIO
User button 1
& Digital IO 7
J1:63 GPIO27 DISP2_DATA0/MII_
RXD3/USBH3_CLK
i.MX51: DISP2_
DATA0
ETH_PHY: RXD3
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:64 GPIO27 DISPB2_SER_CLK_
GPIO3_7
i.MX51: DISPB2_
SER_CLK
Camera 2
Reset
J1:65 HSGPIO2
7
DISP2_DATA2 i.MX51: DISP2_
DATA2
LCD2 Data
J1:66 GPIO27 DISP2_DATA1/MII_RX_
ER/USBH3_DIR
i.MX51: DISP2_
DATA1
ETH_PHY: RXD4
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:67 HSGPIO2
7
DISP2_DATA4 i.MX51: DISP2_
DATA4
LCD2 Data
J1:68 HSGPIO2
7
DISP2_DATA3 i.MX51: DISP2_
DATA3
LCD2 Data
J1:69 GPIO27 DISP2_DATA6/MII_
TXD1/USBH3_STP
i.MX51: DISP2_
DATA6
ETH_PHY: TXD1
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:70 HSGPIO2
7
DISP2_DATA5 i.MX51: DISP2_
DATA5
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:71 GPIO27 DISP2_DATA8/MII_
TXD3/USBH3_DATA0
i.MX51: DISP2_
DATA8
ETH_PHY: TDX3
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.

About the module Module pinout
ConnectCore for i.MX51 Hardware Reference Manual 19
Pin I/O Type Signal name Use on module Use on
development
board
Comments
J1:72 GPIO27 DISP2_DATA7/MII_
TXD2/UBH3_NXT
i.MX51: DISP2_
DATA7
ETH_PHY: TDX2
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:73 GPIO27 DISP2_DATA10/MII_
COL/USBH3_DATA2
i.MX51: DISP2_
DATA10
ETH_PHY: COL
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:74 GPIO27 DISP2_DATA9/MII_
TXEN/USBH3_DATA1
i.MX51: DISP2_
DATA9
ETH_PHY: TXEN
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:75 GPIO27 DISP2_DAT12/MII_RX_
DV/USBH3_DATA4
i.MX51: DISP2_
DATA12
ETH_PHY: RXDV
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:76 GPIO27 DISP2_DAT11/MII_RX_
CLK/USBH3_DATA3
i.MX51: DISP2_
DATA11
ETH_PHY: RXCLK
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:77 GPIO27 DISP2_DATA14/MII_
RXD0/USBH3_DATA6
i.MX51: DISP2_
DATA14
ETH_PHY: RXD0
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:78 GPIO27 DISP2_DAT13/MII_TX_
CLK/USBH3_DATA5
i.MX51: DISP2_
DATA13
ETH_PHY: TXCLK
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:79 GPIO27 DI2_PIN2/MII_MDC i.MX51: DI2_PIN2
ETH_PHY: MDC
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.

About the module Module pinout
ConnectCore for i.MX51 Hardware Reference Manual 20
Pin I/O Type Signal name Use on module Use on
development
board
Comments
J1:80 GPIO27 DISP2_DAT15/MII_
TXD0/USBH3_DATA7
i.MX51: DISP2_
DATA15
ETH_PHY: TXD0
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:81 GPIO27 DI2_PIN4/MII_CRS i.MX51: DI2_PIN4
ETH_PHY: CRS
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:82 - GND - -
J1:83 RGB IOR i.MX51: IOR Not used
J1:84 GPIO27 DI2_DISP_CLK/MII_RXD1 i.MX51: DI2_DISP_
CLK
ETH_PHY: RXD1
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:85 RGB IOR_BACK i.MX51: IOR_BACK Not used
J1:86 GPIO27 DI2_PIN3/MII_MDIO i.MX51: DI2_PIN3
ETH_PHY: MDIO
LCD2 Data Ethernet 1
and LCD2
cannot be
used at the
same time.
J1:87 RGB IOB i.MX51: IOB Not useD
J1:88 IOG IOG i.MX51: IOG Not used
J1:89 RGB IOB_BACK i.MX51: IOB_BACK Not used
J1:90 RGB IOG_BACK i.MX51: IOG_BACK Not used
J1:91 GPIO18 JTAG_TCK i.MX51: JTAG_TCK JTAG
Connector
J1:92 GPIO18 JTAG_TRST# i.MX51: JTAG_
TRST#
JTAG
Connector
J1:93 GPIO18 JTAG_TMS i.MX51: JTAG_TMS JTAG
Connector
J1:94 GPIO18 JTAG_MOD# i.MX51: JTAG_
MOD#
JTAG Mod
Selection