Advanced Configuration and Power Interface

ACPILED ( 0D ) can be used to control the blinking of an LED at the frequence of 1Hz to indicate the system is at power saving mode.

BMREQ# ( in ) Bus Master Request
This is a serial link from SIS north bridge chipset carrying the current AGP and PCI bus master information to SIS960 for power management purpose.

CKE_S GPIO9 ( 0D in/out ) SDRAM Self-Refresh Enable : When the system is in S3 mode (suspend to DRAM), the CKE_S is driven low enable the self-refresh mode of SDRAM

EXTSMI# ( in ) External SMI# : EXTSMI# can be used to generate wakeup event, sleep event, or SCI/SMI#/GPEIRQ event to the ACPI-compatible power management unit.

PCIPME# ( in/out ) - When the system is in power-down mode, an active low event on PCIPME# will cause the PSON# to go low and hence turn on the power supply. When the system is in suspend mode, an active PCIPME# event will cause the system wakeup and generate an SCI/SMI#/GPEIRQ.

PSON# ( 0D ) ATX Power ON/OFF control : is used to control the on/off state of the ATX Power Supply is in the OFF state, an activated power-on event will force the power supply to ON state.

PWRBTN# ( in ) Power Button : This signal is from the power button switch and will be monitored by the ACPI-compatible power management unit to switch the system between working and sleeping states.

RING ( in ) Ring Indication : An active RING pulse and lasting for more than 4ms will cause a wakeup event for system to wake from S1-S5.

THERM# ( in ) Thermal Detect : THERM# is connected to the internal ACPI-compatible power management unit as an indication of outstanding thermal event. An active THERM# event can be used to generate SCI/SMI#/GPEIRQ. If THERM# is activated for more than 2 second, a thermal override event will occur and the system will enter CPU thermal throttling mode automatically.