Acer 1700 Power Management Function (ACPI support function)

18 Chapter 1
Power Management Function (ACPI support function)
Device Standby Mode
TIndependent power management timer for hard disk drive devices
(0-15 minutes, time step=1 minute).
THard disk drive goes into Standby mode (for ATA standard interface).
TDisable V-sync to control the VESA DPMS monitor.
TResume method: device activated (Keyboard for DOS, keyboard & mouse for Windows).
TResume recovery time: 3-5 sec.
Global Standby Mode
TGlobal power management timer (2-120 minutes, time step=10 minute).
THard disk drive goes into Standby mode (for ATA standard interface).
TDisable H-sync and V-sync signals to control the VESA DPMS monitor.
TResume method: Return to original state by pushing external switch button, modem ring in,
keyboard and mouse for APM mode.
TResume recovery time: 7-10 sec.
Suspend Mode
TIndependent power management timer (2-120 minutes, time step=10 minutes) or pushing external
switch button.
TCPU goes into SMM.
TCPU asserts STPCLK# and goes into the Stop Grant State.
TLED on the panel turns amber colour.
THard disk drive goes into SLEEP mode (for ATA standard interface).
TDisable H-sync and V-sync signals to control the VESA DPMS monitor.
TUltra I/O and VGA chip go into power saving mode.
TResume method: Return to original state by pushing external switch button, modem ring in,
keyboard and mouse for APM mode.
TReturn to original state by pushing external switch button, modem ring in and USB keyboard for
ACPI mode.
ACPI
TACPI specification 1.0.
TS0, S1, S3 and S5 sleep state support.
TOn board device power management support.
TOn board device configuration support.