w83l517g Winbond Electronics Corp America, w83l517g Datasheet - Page 107

• Manufacturer Part Number: w83l517g
• Description: Winbond Lpc I/o For Notebook W83l517d/ W83l517d-f
• Manufacturer: Winbond Electronics Corp America

11. ACPI REGISTERS FEATURES
W83L517D 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 PME interrupt in the ACPI
mode. The new ACPI feature routes SMI / PME logic output either to SMI or to PME .The
12. CONFIGURATION REGISTER
12.1 Plug and Play Configuration
The W83L517D uses Compatible PNP protocol to access configuration registers for setting up
different types of configurations. In W83L517D, there are eleven Logical Devices (from Logical
Device 0 to Logical Device B with the exception of logical device 4 for backward compatibility) which
correspond to eleven individual functions: FDC (logical device 0), PRT (logical device 1), UART1
(logical device 2), FIR (Fast IR, logical device 6), GPIO1 (logical device 7), GPIO2(logical device
8),GPIO3 ~GPIO5(logical device 9), and ACPI ((logical device A). Each Logical Device has its own
configuration registers (above CR30). Host can access those registers by writing an appropriate
logical device number into logical device select register at CR07.
SMI / PME logic routes to SMI only when both PME_EN = 0 and SMIPME_OE = 1. Similarly, the
SMI / PME logic routes to PME only when both PME_EN = 1 and SMIPME_OE = 1.
IRQ events
Global STBY
Device Trap
Device Idle
Timers
Timer
SMI /
PME
Logic
IRQs
- 107 -
State machine
PME_EN
Sleep/Wake
W83L517D/W83L517D-F
0
1
SMIPME_OE
SMIPME_OE
Publication Release Date: May 23, 2005
WAK_STS
Clock
Control
SMI
PME
Revision 1.0