82801FB Datasheet, PDF (629/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

Intel^® High Definition Audio Controller Registers (D27:F0)
18.1.1
18.1.2
18.1.3
VID—Vendor Identification Register
(Intel^® High Definition Audio Controller—D27:F0)
Offset:
Default Value:
00-01h
8086h
Attribute:
Size:
RO
16 bits
Bit
Description
15:0 Vendor ID — RO. This is a 16-bit value assigned to Intel. Intel VID = 8086h
DID—Device Identification Register
(Intel^® High Definition Audio Controller—D27:F0)
Offset Address: 02–03h
Default Value: 2668h
Attribute:
Size:
RO
16 bits
Bit
Description
15:0 Device ID — RO. This is a 16-bit value assigned to the ICH6 Intel High Definition Audio controller.
PCICMD—PCI Command Register
(Intel^® High Definition Audio Controller—D27:F0)
Offset Address: 04–05h
Default Value: 0000h
Attribute:
Size:
R/W, RO
16 bits
Bit
15:11
10
9
8
7
6
5
4
3
2
1
0
Description
Reserved
Interrupt Disable (ID) — R/W.
0= The INTx# signals may be asserted.
1= The Intel High Definition Audio controller’s INTx# signal will be de-asserted
Note that this bit does not affect the generation of MSI’s.
Fast Back to Back Enable (FBE) — RO. Not implemented. Hardwired to 0.
SERR# Enable (SERR_EN) — RO. Not implemented. Hardwired to 0.
Wait Cycle Control (WCC) — RO. Not implemented. Hardwired to 0.
Parity Error Response (PER) — RO. Not implemented. Hardwired to 0.
VGA Palette Snoop (VPS). Not implemented. Hardwired to 0.
Memory Write and Invalidate Enable (MWIE) — RO. Not implemented. Hardwired to 0.
Special Cycle Enable (SCE). Not implemented. Hardwired to 0.
Bus Master Enable (BME) — R/W. This bit controls standard PCI Express* bus mastering
capabilities for Memory and I/O, reads and writes. Note that this bit also controls MSI generation
since MSIs are essentially Memory writes.
0 = Disable
1 = Enable
Memory Space Enable (MSE) — R/W. This bit enables memory space addresses to the Intel
High Definition Audio controller.
0 = Disable
1 = Enable
I/O Space Enable (IOSE)—RO. Hardwired to 0 since the Intel High Definition Audio controller
does not implement I/O space.
Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet
629