FIC a440 Manual Do Serviço
Hardware Functional Overview
FIC A440 Series Service Manual 4-25
Figure: Global System Power States and Transitions
4.6.5
Power States transition event
The following table summarize the entry events and wake-up events of each power
Power State
Entry Event
Wake up Event
S1
OSPM* control
Predefined Mem/IO range access
Ring Indicator
Keystroke
IRQ1-15
SMI# / ACPI SCI# / USB
Ring Indicator
Keystroke
IRQ1-15
SMI# / ACPI SCI# / USB
S2
OSPM control
Predefined Mem/IO range access
Battery Warning
Battery Low
Ring Indicator
Keystroke (Int., Ex. And USB keyboard )
Mouse movement
Schedule Alarm
SMI# / ACPI SCI# / USB
Battery Warning
Battery Low
Ring Indicator
Keystroke (Int., Ex. And USB keyboard )
Mouse movement
Schedule Alarm
SMI# / ACPI SCI# / USB
S3 OSPM
control,
Sleep Button,
Lid Close
Lid Close
Sleep button
Ring Indicator
Schedule Alarm
Lid Open
PME#
Battery Low
Ring Indicator
Schedule Alarm
Lid Open
PME#
Battery Low
S4 OSPM
control,
Sleep Button
Ring Indicator
Schedule Alarm
Ring Indicator
Schedule Alarm
S5 OSPM
control,
Power Button
*OSPM: OS-directed Power Management
4.6.6
Lid Switch
The function of Lid Switch is depends on the ACPI aware OS.
4.6.7
Power/Sleep Button
The function of Power/Sleep Button is depends on the ACPI aware OS.
4.6.8
Device Power management
Power state of local devices table
See section 5.8.1 “Power state of local devices table” for detail.