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1 sm bus, Smbus address configuration – Intel 41210 User Manual

Page 54

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54

Intel® 41210 Serial to Parallel PCI Bridge Design Guide

Circuit Implementations

10.2.1

SM Bus

The SMBus interface does not have configuration registers. The SMBus address is set by the states
of pins SMBUS[5] and SMBUS [3:1] when PERST# is asserted as described in

Table 17

.

Refer to

Section 2.4

for details on how to use the SMBus to initialize 41210 Bridge registers with a

microcontroller.

Table 17.

SMBUs Address Configuration

Bit

Value

7

1

6

1

5

SMBUS[5]

4

0

3

SMBUS[3]

2

SMBUS[2]

1

SMBUS[1]