307013-003 Datasheet, PDF (712/848 Pages) Intel Corporation – Intel I/O Controller Hub 7

Intel® High Definition Audio Controller Registers (D27:F0)
19.1.14 SVID—Subsystem Vendor Identification Register
(Intel^® High Definition 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
15:0 Subsystem Vendor ID — R/WO.
Description
19.1.15 SID—Subsystem Identification Register
(Intel^® High Definition 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
15:0 Subsystem ID — R/WO.
Description
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Intel ^® ICH7 Family Datasheet