C And Smb Bus (For User Access) - ADLINK Technology COM Express Express-BASE7 User Manual

CN40: LPC Test Connector
Pin Signal
1 LPC_DRQ0#
3 LPC_DRQ1#
5 LPC_SERIRQ
7 LPC_FRAME#
9 LPC_RST#
11 LPC_CLK
JP26/25: External LPC EEPROM Address Selection
JP25 & JP26 configure the address of the external EEPROM connected to the LPC Debug Header (CN37)
JP26: EEPROM Address A0 Selection
JP25: EEPROM Address A1 Selection
Jumper Status
1-2 High "1"
2-3 Low "0"
Note: <<<< indicates default setting
2
6.10. I

C and SMB Bus (for user access)

CN33: I2C Bus
Pin Signal
1 + 3.3V
2 I2C_DAT
3 I2C_CK
4 GND
CN34: SMBus
Pin Signal
1 + 3.3V
2 SMB_DAT
3 SMB_CK
4 GND
Connectors, Pinouts and Jumpers
Pin Signal
2 LPC_AD0
4 LPC_AD1
6 LPC_AD2
8 LPC_AD3
10 GND
12 GND
1
2
<<<<
3
1
1
1 2
11 12
Express-BASE7
25