ADLINK Express-BASE - Manual (Page 20)

Express-BASE User’s Manual Page 20
6.8 I 2 C and SMB Bus
(for user access)
CN31: I 2 C Bus Pin Signal
1 +5V
2 I2C_DAT
3 I2C_CK
4 GND
CN30: SMB Bus Pin Signal
1 +5V
2 SMB_DAT
3 SMB_CK
4 GND
1
1
JPY2: I2C BUFFER (data)
Jumper Status
1-2 ON
2-3 OFF <<<<
1
2
3
JPY3: I2C BUFFER (clock)
Jumper Status
1-2 ON
2-3 OFF <<<<
1
2
3
JPY4: SMBus BUFFER (data)
Jumper Status
1-2 ON
2-3 OFF <<<<
1
2
3
JPY5: SMBus BUFFER (clock)
Jumper Status
1-2 ON
2-3 OFF <<<<
1
2
3
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
NOTE: <<<< indicates default setting