W83627DHG-PT Nuvoton Technology Corporation of America, W83627DHG-PT Datasheet - Page 260

• Manufacturer Part Number: W83627DHG-PT
• Manufacturer: Nuvoton Technology Corporation of America

Specifications of W83627DHG-PT

• Pin Count: 128
• Lead Free Status / RoHS Status: Compliant

** What’s the definition of former state at AC power failure?
1) The previous state is “ON”
2) The previous state is “OFF”
Logical Device A, CR E6h
Logical Device A, CR E4h
3VCC
To ensure that VCC does not fall faster than VSB in various ATX Power Supplies, the W83627DHG-
P adds the option of “user define mode” for the pre-defined state before AC power failure. BIOS can
set the pre-defined state for the system to be “On” or “Off”. According to this setting, the system
chooses the state after the AC power recovery.
SUSB#
6~5
BIT
BIT
4
3VCC
SUSB#
3VCC falls to 2.6V and SUSB# keeps at VIL 0.8V
3VCC falls to 2.6V and SUSB# keeps at VIH 2.0V
READ / WRITE
READ / WRITE
R / W
R / W
Power loss Last State Flag. (VBAT)
0: ON
1: OFF
Power-loss control bits => ( VBAT )
00: System always turns off when it returns from power-loss state.
01: System always turns on when it returns from power-loss state.
10: System turns off / on when it returns from power-loss state depending
11: User defines the state before the power loss.(The previous state is set
on the state before the power loss.
at CRE6[4])
W83627DHG-P/W83627DHG-PT
-250-
DESCRIPTION
DESCRIPTION
Publication Release Date: July 09, 2009
Version 1.94