Smc Controller Status Register 1 (Icsta1); Smc Keyboard Controller-Style Interface - Kontron CP308 User Manual

CP308
4.4.2

SMC Controller Status Register 1 (ICSTA1)

The SMC Controller Status Register 1 shows the overtemperature status of the GS45 GMCH
and the processor.
Table 4-21: SMC Controller Status Register 1 (ICSTA1)
REGISTER NAME
ADDRESS
BIT NAME
7 - 3 Res. Reserved
2 ICHOT GMCH overtemperature detection (Aux2 trip point):
0 = GMCH is at its normal operating temperature
1 = GMCH temperature is above the AUX2 trip point
1 Res. Reserved
0 IPHOT Processor overtemperature detection:
0 = Processor is at its normal operating temperature
1 = Processor temperature is above 105 °C
4.4.3

SMC Keyboard Controller-Style Interface

The host processor communicates with the SMC via a keyboard controller-style (KCS) inter-
face. This interface is for the System Management Software (SMS) used within an operating
system. The KCS interface is at the I/O location 0xCA2 and 0xCA3.
ID 1027-4487, Rev. 3.0

SMC CONTROLLER STATUS REGISTER 1 (ICSTA1)

0x29E
DESCRIPTION
Configuration
RESET
ACCESS
VALUE
00000 R
0 R
0 R
0 R
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