Circuit Implementations
10.2.1SM 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.
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] |
|
|
Refer to Section 2.4 for details on how to use the SMBus to initialize 41210 Bridge registers with a microcontroller.
54 | Intel® 41210 Serial to Parallel PCI Bridge Design Guide |