CS5530 datasheet(219/241 Pages) NSC

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ACPI_BASE 0Eh-0Fh

SETUP_IDX — Setup Index Register (R/W)

Reset Value = 0000h

SETUP_IDX is a 16-bit register that references an internal setting in the VSA (refer to Table 4-33). A read of SETUP_IDX returns the

last value written to SETUP_IDX. A write of SETUP_IDX selects the index for a corresponding write to SETUP_DATA. Writes of any

undefined index values to SETUP_IDX are ignored. If the current value of SETUP_IDX is invalid, a read of SETUP_DATA returns 0.

ACPI_BASE 10h-11h

GPE0_STS — General Purpose Event 0 Status Register (R/W)

Reset Value = 0000h

OEM_GPE_S15: Original Equipment Manufacturer General Purpose Event Status Bit 15: OEM defined.

OEM_GPE_S14: Original Equipment Manufacturer General Purpose Event Status Bit 14: OEM defined.

OEM_GPE_S13: Original Equipment Manufacturer General Purpose Event Status Bit 13: OEM defined.

OEM_GPE_S12: Original Equipment Manufacturer General Purpose Event Status Bit 12: OEM defined.

OEM_GPE_S11: Original Equipment Manufacturer General Purpose Event Status Bit 11: OEM defined.

OEM_GPE_S10: Original Equipment Manufacturer General Purpose Event Status Bit 10: OEM defined.

OEM_GPE_S09: Original Equipment Manufacturer General Purpose Event Status Bit 9: OEM defined.

OEM_GPE_S08: Original Equipment Manufacturer General Purpose Event Status Bit 8: OEM defined.

OEM_GPE_S07: Original Equipment Manufacturer General Purpose Event Status Bit 7: OEM defined.

OEM_GPE_S06: Original Equipment Manufacturer General Purpose Event Status Bit 6: OEM defined.

The recommended mapping for the lid switch input is to use GPIO6. If the recommended mapping is used, bit 6 of

GPE0_STS needs to be mapped to GPIO6 at boot time via SETUP_IDX and SETUP_DATA. Similarly, the lid switch input

needs to be routed to GPIO6 in hardware. If this method is selected, this bit is defined as:

LID_STS: Lid Status: Set when lid state changes. If LID_EN is set, a SCI interrupt is asserted. Reset by writinga1tothis

bit.

OEM_GPE_S05: Original Equipment Manufacturer General Purpose Event Status Bit 5: OEM defined.

OEM_GPE_S04: Original Equipment Manufacturer General Purpose Event Status Bit 4: OEM defined.

OEM_GPE_S03: Original Equipment Manufacturer General Purpose Event Status Bit 3: OEM defined.

OEM_GPE_S02: Original Equipment Manufacturer General Purpose Event Status Bit 2: OEM defined.

OEM_GPE_S01: Original Equipment Manufacturer General Purpose Event Status Bit 1: OEM defined.

OEM_GPE_S00: Original Equipment Manufacturer General Purpose Event Status Bit 0: OEM defined.

Note: Each bit is set by an external event and cleared by a write of a one to that bit. The GPE0_STS bits are mapped to specific,

chipset-resident GPIO signals using the SETUP_IDX and SETUP_DATA registers. Refer to Tables 4-33 through 4-35

Table 4-32. V-ACPI Registers (Continued)

Bit

Description

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