82NM10 Datasheet, PDF (578/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

Intel HD Audio Controller Registers (D27:F0)
18.1.14 SVID—Subsystem Vendor Identification Register
(Intel HD Audio Controller—D27:F0)
Address Offset: 2Ch–2Dh
Default Value: 0000h
Attribute:
Size:
R/WO
16 bits
The SVID register, in combination with the Subsystem ID register (D27:F0:2Eh),
enable the operating environment to distinguish one audio subsystem from the
other(s).
This register is implemented as write-once register. Once a value is written to it, the
value can be read back. Any subsequent writes will have no effect.
This register is not affected by the D3_HOT to D0 transition.
Bit
Description
15:0 Subsystem Vendor ID — R/WO.
18.1.15 SID—Subsystem Identification Register
(Intel HD Audio Controller—D27:F0)
Address Offset: 2Eh–2Fh
Default Value: 0000h
Attribute:
Size:
R/WO
16 bits
The SID register, in combination with the Subsystem Vendor ID register (D27:F0:2Ch)
make it possible for the operating environment to distinguish one audio subsystem
from the other(s).
This register is implemented as write-once register. Once a value is written to it, the
value can be read back. Any subsequent writes will have no effect.
This register is not affected by the D3_HOT to D0 transition.
T
Bit
Description
15:0 Subsystem ID — R/WO.
18.1.16 CAPPTR—Capabilities Pointer Register (Audio—D30:F2)
Address Offset: 34h
Default Value: 50h
Attribute:
Size:
RO
8 bits
This register indicates the offset for the capability pointer.
Bit
Description
7:0 Capabilities Pointer (CAP_PTR) — RO. This field indicates that the first capability
pointer offset is offset 50h (Power Management Capability)
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