Usb - ADLINK Technology COM Express Express-BASE7 User Manual

JP19-21: I2C/SMBus Buffers
These buffers settings are for isolation of the I2C and SMBus – test feature only
ON: I2C/SMBus passes through LTC4300A-2 Buffer
OFF: Bypass Buffer
2
JP19: I C BUFFER [data]
2
JP20: I C BUFFER [clock]
JP21: SMB Bus BUFFER [data]
JP22: SMB Bus BUFFER [clock]
Jumper Status
1-2 ON
2-3 OFF
JP29-31: I2C EEPROM Address Selection
JP29 to JP31 configure the address of the A0, A1 and A2 bits of the I2C EEPROM
JP29: I2C EEPROM A0
JP30: I2C EEPROM A1
JP31: I2C EEPROM A2
Jumper Status
1-2 A0_High "1"
2-3 A0_Low "0"
Note: <<<< indicates default setting
6.11.

USB

CN45: USB 3.0 x4 Connector
Pin Signal
1 USB3.0_P5VA
2 USB2_CMAN
3 USB2_CMAP
4 GND
5 USB3A_CMRXN
6 USB3A_CMRXP
7 GND
8 USB3A_CMTXN
9 USB3A_CMTXP
26
1
2
3
<<<<
1
<<<<
2
3
Connectors, Pinouts and Jumpers