82801FB Datasheet, PDF (648/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

Intel^® High Definition Audio Controller Registers (D27:F0)
18.1.46
ESD—Element Self Description Register
(Intel^® High Definition Audio Controller—D27:F0)
Address Offset: 134h
Default Value: 05000100h
Attribute:
Size:
RO
32 bits
Bit
Description
31:24
23:16
15:8
7:4
3:0
Port Number — RO. Hardwired to 05h indicating that the Intel High Definition Audio controller is
assigned as Port #5.
Component ID — RO. This field returns the value of the ESD.CID field of the chip configuration
section. ESD.CID is programmed by BIOS.
Number of Link Entries — RO. The Intel High Definition Audio only connects to one device, the ICH6
egress port. Therefore this field reports a value of 1h.
Reserved.
Element Type (ELTYP) — RO. The Intel High Definition Audio controller is an integrated Root
Complex Device. Therefore, the field reports a value of 0h.
18.1.47
L1DESC—Link 1 Description Register
(Intel^® High Definition Audio Controller—D27:F0)
Address Offset: 140h
Default Value: 00000001h
Attribute:
Size:
RO
32 bits
Bit
31:24
23:16
15:2
1
0
Description
Target Port Number — RO. The Intel High Definition Audio controller targets the Intel^® ICH6’s RCRB
Egress port, which is Port #0.
Target Component ID — RO. This field returns the value of the ESD.CID field of the chip
configuration section. ESD.CID is programmed by BIOS.
Reserved.
Link Type — RO. Hardwired to 0 indicating Type 0.
Link Valid — RO. Hardwired to 1.
18.1.48
L1ADDL—Link 1 Lower Address Register
(Intel^® High Definition Audio Controller—D27:F0)
Address Offset: 148h
Default Value: See Register Description
Attribute:
Size:
RO
32 bits
Bit
Description
31:14
Link 1 Lower Address — RO. Hardwired to match the RCBA register value in the PCI-LPC bridge
(D31:F0:F0h).
13:0 Reserved.
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Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet