82NM10 Datasheet, PDF (275/671 Pages) Intel Corporation – Intel® NM10 Family Express Chipset

Chipset Configuration Registers
10.1.23 RP4BA—Root Port 4 Base Address Register
Offset Address: 0158–015Fh
Default Value: 00000000000E3000h
Attribute:
Size:
RO
64-bit
Bit
Description
63:32
31:28
27:20
19:15
14:12
11:0
Reserved
Reserved
Bus Number (BN) — RO. This field indicates the root port is on bus #0.
Device Number (DN) — RO. This field indicates the root port is on device #28.
Function Number (FN) — RO. This field indicates the root port is on function #3.
Reserved
10.1.24 HDD—Intel HD Audio Descriptor Register
Offset Address: 0160–0163h
Default Value: 15xx0002h
Attribute:
Size:
R/WO, RO
32-bit
Bit
Description
31:24
23:16
15:2
1
0
Target Port Number (PN) — RO. This field indicates the target port number is 15h
(Intel HD Audio).
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.
Reserved
Link Type (LT) — RO. This bit 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).
10.1.25 HDBA—Intel HD Audio Base Address Register
Offset Address: 0168–016Fh
Default Value: 00000000000D8000h
Attribute:
Size:
RO
64-bit
Bit
Description
63:32
31:28
27:20
19:15
14:12
11:0
Reserved
Reserved
Bus Number (BN) — RO. This field indicates the root port is on bus #0.
Device Number (DN) — RO. This field indicates the root port is on device #27.
Function Number (FN) — RO. This field indicates the root port is on function #0.
Reserved
Datasheet
275