User Guide

Software Functional Overview
FIC MD02 Service Manual 3-15
system under each power management mode.
PowerState
Component
Doze Stand By STR STD/SOff
CPU Stop
Grant
Stop Clock Power Off Power Off
L2 CACHE ON Power Down Power Off Power Off
MontaraGM ON Stop Clock Power Off (except Vcc) Power Off
ICH4 ON ON Power Off (except
SUSVcc, RTCVcc )
Power Off (except
SUSVcc, RTCVcc)
DRAM ON Self Refresh Self Refresh Power Off
Clock Synthesizer ON Low Power Power Off Power Off
CDROM ON Power Down Power Off Power Off
HDD ON Power Down Power Off Power Off
FDD ON Power Down Power Off Power Off
KBC ON ON Power Down Power Off
PMU08 ON ON Power Down Power Down
VGA/VRAM ON Power Down Power Down Power Off
PCMCIA ON Power Down Power Down Power Off
AUDIO ON Power Down Power Off Power Off
Audio AMP ON Power Down Power Off Power Off
LCD Backlight ON Power Off Power Off Power Off
LAN ON Power Down Power Down Power Down
Internal Modem ON Power Down Power Down Power Down
Device Power control Methodology During S3 Mode
This section illustrates the control methodology of each device/component and its details
under Stand by mode.
Device Power Down Controlled by Description
CPU Hardware Controlled by SUSB# pin
L2 CACHE Hardware Power off
ICH4 Hardware Controlled by SUSB# pin
DRAM Software Self Refresh
Clock Synthesizer Hardware Controlled by SUSB# pin
CDROM Hardware Power off
HDD Hardware Power off
FDD Hardware Power off
KBC Software Controlled by M3885xM8 power
down command
PMU08 Sofeware Controlled by PMU08 power down
command
VGA/VRAM Software Controlled by MontaraGM
PCMCIA Software Controlled by SUSB# pin
AUDIO Hardware Controlled by ICH4
Audio AMP Hardware Controlled by BIOS
LCD Backlight Hardware Power off
LAN Hardware Controlled by Driver enter Dx status
Internal Modem Hardware Controlled by Driver enter Dx ststus
Power Button
The function of Lid Switch is depends on the ACPI aware OS.
PDF created with FinePrint pdfFactory trial version http://www.fineprint.com