FIC a440 Service Manual

Software Functional Overview

3-18

FIC A440 Series Service Manual

3.4.4 Power Management Mode Transition Flow Chart

Full-On Mode:

CPU in full speed

All devices are working

Doze Mode:

CPU slows down

All other devices are working

Standby Mode:

CPU clock stops

All other devices in low powe state

Select

STR or STD

STR Mode:

(Suspend-to-RAM mode)

STD/Soff Mode:

(Suspend-to-Disk /

Soft-Off mode)

uP check

Is Battery OK?

Moff Mode:

(Mechanical Off Mode)

LID Switch

IRQ [0~15]

Ring In

Idle time expire

STD

STR

Battery low
to STD

Ring In
Sleep Button
RTC Alarm

Plug in AC adapter
or battery and press
power button

Remove AC adapter and
battery pack

Ring In
Power Button
RTC Alarm

Press power button
to Soff or Suspend
hotkey to STD

Battery OK

Battery Low

* Idle time expire
Activity monitor:
Keyboard, VGA, Audio, Mouse,
Printer port, COM port

Press Suspend
hotkey to STR