Datasheet

Soft Power Management Registers 26
Intel® 82801BA I/O Controller Hub 2 (ICH2)
The following tables report the ICH2 registers useful for the power management.
Name Address Function
PMCSR PCI Configuration Register
Bus 1, Device 8, Function 0, offset E0h
Power Management Control/Status Register of LAN
Controller. Used to enable PME and set Power State.
PM1_STS I/O address 6000h Power Management 1 Status Register. Used to read and
clear wake status.
PM1_EN I/O address 6002h Power Management 1 Enable Register. Used to enable
wake events as RTC.
PM1_CNT I/O address 6004h Power Management 1 Control Register. Used to set sleep
modes.
GPE0_EN I/O address 602Ah General Purpose Event 0 Enables Register. Used to enable
wake events as Ring Indicator and PME.
Table 9. Interesting ICH2 registers
An0065. CPU-1450 Soft Power Management
For a more detailed description please refer to Intel® 82801BA I/O Controller Hub 2 (ICH2) datasheet.