User`s manual

Functional Description 21
AMC-1000
3.4.8 SMBus Devices
The AMC-1000 provides a System Management Bus (SMBus)
for access to several system monitoring and configuration
functions. The SMBus consists of a two-wire I2C bus interface.
The following table describes the function and address of each
onboard SMBus device.
Table 3-2: SMBus Devices and Addresses
3.4.9 GPIO Signals
Four GPIO signals from the Intel® 3100 are connected as in the
table below.
Device SMBUS Address
Thermal Sensor 01001100(4C)
Watchdog Timer 10011100(9C)
DDR2 10100000(A0)
Pin (ICH6-M) Input / Output Signal Description
GPO[16] Output FWH_WP-L FWH Write Protect
GPO[17] Output FWH_TBL# FWH Top Block Lock Output
GPO[18] Output WML_POST_OK BIOS post OK
GPIO[27] Output DIS_82571_A-L On-board LAN Disable