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Chapter 2 Hardware Installation
23
Chapter 2
The 1-channel I
2
C bus interface conforms to the version 2.1 I
2
C bus specification. It operates
as a master or slave device and supports a multi-master bus.
I
2
C Header
1
ON
2 3 4
I
2
C
SMBus Header
The SMBus (System Management Bus) connector is used to connect the SMBus device. It is a
multiple device bus that allows multiple chips to connect to the same bus and enable each one
to act as a master by initiating data transfer.
1
ON
2 3 4
2
GND
3.3V DU
SMBUS_Data
SMBUS_CLK
SMBUS_Alert#
1
5
2 1
NC
I
2
C_DATA
I
2
C_Clock
GND
3V3 DU
5
SMBus
