FIC A360 Power Management Mode Transition Flow Chart, Power States transition event, G2 S5, G0 S0

Software Functional Overview

3.5.6Power Management Mode Transition Flow Chart

From a user-visible level, the system can be thought of as being one of the states in the following diagram:

Wake SLP_TYPx=S1

Event and

SLP_EN

SLP_TYPx=S2 and

S1

Sleeping

S2

Sleeping

ACPI Boot

SLP_EN

G1

(SCI_EN=1)

G2 (S5) -	G0 (S0) -
Soft Off	Working

SLP_TYPx=S5

SLP_TYPx=S3

and

SLP_EN

S3

Sleeping

and

SLP_EN or

PWRBTN_OR

S4BIOS_REQ to

SMI_CMD

SLP_TYPx=S4

and

SLP_EN

S4

Sleeping

OEM S4 BIOS

Handler

SLP_TYPx=S4

and

SLP_EN

3.5.7Power States transition event

The following table summarizes the entry events and wake-up events of each power:

Power State	Entry Event	Wake up Event
S1	OSPM control,	Sleep button
	Sleep Button,	Ring Indicator
	Lid Close	PME Event
		LAN Wake Up
		Lid Open
		Schedule Alarm
S4	OSPM control,	Power Button
	Power Button	Schedule Alarm
	Lid Close
	Battery Low - Low
S5	Power Button	Power Button
	Execute Windows
	shutdown
	command
OSPM: OS-directed Power Management

FIC A360 Service Manual 3-23