W83L517D_05 Datasheet, PDF (107/133 Pages) Winbond – LPC I/O for Notebook

W83L517D/W83L517D-F
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
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
SMI / PME Logic
PME_EN
SMIPME_OE
0
SMI
1
SMIPME_OE
PME
Device Idle
Timers
Device Trap
Global STBY
Timer
IRQs
Sleep/Wake
State machine
WAK_STS
Clock
Control
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.
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Publication Release Date: May 23, 2005
Revision 1.0