Chipset Configuration Registers
®
10.1.27 HDD—Intel High Definition Audio Descriptor Register
Offset Address: 0160–0163h
Attribute:
Size:
R/WO, RO
32-bit
Default Value:
0Fxx0002h
Bit
Description
Target Port Number (PN) — RO. Indicates the target port number is 15h (Intel
High Definition Audio).
31:24
23:16
Target Component ID (TCID) — R/WO. This field returns the value of the ESD.CID
(offset 0104h, bits 23:16) field programmed by platform BIOS, since the root port is
in the same component as the RCRB.
15:2
1
Reserved
Link Type (LT) — RO. Indicates that the link points to a root port.
Link Valid (LV) — RO. When FD.ZD (offset 3418h, bit 4) is set, the link to Intel High
Definition Audio is not valid (return 0). When FD.ZD is cleared, the link to Intel High
Definition Audio is valid (return 1).
0
®
10.1.28 HDBA—Intel High Definition Audio Base Address Register
Offset Address: 0168–016Fh
Attribute:
Size:
RO
64-bit
Default Value:
00000000000D8000h
Bit
Description
63:28
27:20
19:15
14:12
11:0
Reserved
Bus Number (BN) — RO. Indicates the High Definition Audio captured bus number.
Device Number (DN) — RO. Indicates the root port is on device #27.
Function Number (FN) — RO. Indicates the root port is on function #0.
Reserved
10.1.29 RP5D—Root Port 5 Descriptor Register
Offset Address: 0170–0173h
Attribute:
Size:
R/WO, RO
32-bit
Default Value:
05xx0002h
Bit
Description
Target Port Number (PN) — RO. Indicates the target port number is 5h (root port
#5).
31:24
23:16
Target Component ID (TCID) — R/WO. This field returns the value of the ESD.CID
(offset 0104h, bits 23:16) field programmed by platform BIOS, since the root port is
in the same component as the RCRB.
15:2
1
Reserved
Link Type (LT) — RO. Indicates that the link points to a root port.
Link Valid (LV) — RO. When FD.PE5D (offset 3418h, bit 20) is set, the link for this
root port is not valid (return 0). When FD.PE5D is cleared, the link for this root port is
valid (return 1).
0
316
Datasheet
INTEL [ INTEL ]
