82NM10 Datasheet, PDF (581/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

Intel HD Audio Controller Registers (D27:F0)
18.1.21 PID—PCI Power Management Capability ID Register
(Intel HD Audio Controller—D27:F0)
Address Offset: 50h–51h
Default Value: 6001h
Attribute:
Size:
RO
16 bits
Bit
Description
15:8
7:0
Next Capability (Next) — RO. Hardwired to 60h. Points to the next capability
structure (MSI)
Cap ID (CAP) — RO. Hardwired to 01h. Indicates that this pointer is a PCI power
management capability.
18.1.22 PC—Power Management Capabilities Register
(Intel HD Audio Controller—D27:F0)
Address Offset: 52h–53h
Default Value: C842h
Attribute:
Size:
RO
16 bits
Bit
Description
15:11 PME Support — RO. Hardwired to 11001b. Indicates PME# can be generated from D3
and D0 states.
10 D2 Support — RO. Hardwired to 0. Indicates that D2 state is not supported.
9 D1 Support —RO. Hardwired to 0. Indicates that D1 state is not supported.
8:6 Aux Current — RO. Hardwired to 001b. Reports 55 mA maximum suspend well current
required when in the D3_COLD state.
5 Device Specific Initialization (DSI) — RO. Hardwired to 0. Indicates that no device
specific initialization is required.
4 Reserved
3 PME Clock (PMEC) — RO. Does not apply. Hardwired to 0.
2:0 Version — RO. Hardwired to 010b. Indicates support for version 1.1 of the PCI Power
Management Specification.
18.1.23 PCS—Power Management Control and Status Register
(Intel HD Audio Controller—D27:F0)
Address Offset: 54h–57h
Default Value: 00000000h
Attribute:
Size:
RO, R/W, R/WC
32 bits
Bit
Description
31:24 Data — RO. Does not apply. Hardwired to 0.
23 Bus Power/Clock Control Enable — RO. Does not apply. Hardwired to 0.
22 B2/B3 Support — RO. Does not apply. Hardwired to 0.
21:16 Reserved.
Datasheet
581