User Guide

FIRST INTERNATIONAL COMPUTER,
INC.
- -
35
5.5 Power Management Mode Transition Flow Chart
SLP_TYPx=S1
and
SLP_EN
S1
Sleeping
S2
Sleeping
S3
Sleeping
SLP_TYPx=S5
and
SLP_EN
or
PWRBTN_OR
Wake
Event
S4
Sleeping
ACPI
Boot
(SCI_EN=1)
G2 (S5) -
Soft Off
SLP_TYPx=S2
and
SLP_EN
SLP_TYPx=S3
and
SLP_EN
SLP_TYPx=S4
and
SLP_EN
G0 (S0) -
Working
G1
S4BIOS_REQ
to
SMI_CMD
OEM S4 BIOS
Handler
SLP_TYPx=S4
and
SLP_EN
5.6 Power States transition event
The following table summarize the entry events and wake-up events of each
power state
Power State Entry Event Wake up Event
S3 OSPM control
Lid Close
Power Button
Sleep Button
Battery Low
Power Button
Ring Wake up
RTC Alarm
LAN Wake Up
Lid open
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