w83627ehf Winbond Electronics Corp America, w83627ehf Datasheet - Page 139

• Manufacturer Part Number: w83627ehf
• Description: W83627ehf/ef W83627ehg/eg Winbond Lpc I/o
• Manufacturer: Winbond Electronics Corp America

1) Last state is “ON”
2) Last state is “OFF”
CR E6h
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CR E4h
To prevent that VCC goes down faster than VSB in various ATX Power Supply.
W83627EHF/EF,W83627EHG/EG add the “user define mode” option for AC power loss pre-state.
BIOS can set the pre-state that is “On” or “Off” state, because the status of AC power resume
depends on it.
6~5
SUSB#
SUSB#
4
VCC is falling to 2.6V and SUSB# keeps VIL 0.8V
VCC
VCC
VCC is falling to 2.6V and SUSB# keeps VIH 2.0V
R / W
R / W
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Power loss Last State Flag. (VBAT)
0: ON
1: OFF
Power loss control bits =>
00: System always turns off when come back from power loss state.
01: System always turns on when come back from power loss state.
10: System turns off / on when come back from power loss state depend
11: User define the state before power loss.(The last state set at CRE6[4])
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on the state before power loss.
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W83627EHF/EF, W83627EHG/EG
-133-
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(VBAT)
Publication Release Date: January 18, 2006
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Revision 1.0