w83977eg Winbond Electronics Corp America, w83977eg Datasheet - Page 85

• Manufacturer Part Number: w83977eg
• Description: Winbond Isa I/o W83977ef W83977eg
• Manufacturer: Winbond Electronics Corp America

11. ACPI REGISTERS FEATURES
W83977EF/EG supports both ACPI and legacy power managements. The switch logic of the power
management block generates an SMI# interrupt in the legacy mode and an SCI# interrupt in the ACPI
mode. The new ACPI feature routes SMI#/SCI# logic output either to SMI# or toSCI#. The SMI#/SCI#
logic routes to SMI# only when both SCI_EN = 0 and SMISCI_OE = 1.Similarly, the SMI#/SCI#
logicroutes to SCI# only when both SCI_EN = 1 and SMISCI_OE = 1.
IRQ events
Global STBY
Device Trap
Device Idle
Timers
Timer
SMI# /
SCI#
Logic
IRQs
W83977EF-AW/W83977EG-AW
-83-
State machine
SCI_EN
Sleep/Wake
0
1
SMISCI_OE
SMISCI_OE
Publication Release Date: Apr. 2006
WAK_STS
Clock
Control
SMI#
SCI#
Revision 1.2