82801FB Datasheet, PDF (252/786 Pages) Intel Corporation – Intel I/O Controller Hub 6 (ICH6) Family

Chipset Configuration Registers
7.1.8
V0STS—Virtual Channel 0 Resource Status Register
Offset Address: 001A–001Bh
Default Value: 0000h
Attribute:
Size:
RO
16-bit
Bit
15:02
1
0
Description
Reserved
VC Negotiation Pending (NP) — RO.
1 = Virtual channel is still being negotiated with ingress ports.
Port Arbitration Tables Status (ATS) — RO. There is no port arbitration table for this VC, so this bit
is reserved at 0.
7.1.9
7.1.10
RCTCL—Root Complex Topology Capabilities List Register
Offset Address: 0100–0103h
Default Value: 1A010005h
Attribute:
Size:
RO
32-bit
Bit
31:20
19:16
15:0
Description
Next Capability (NEXT) — RO. This field indicates the next item in the list.
Capability Version (CV) — RO. This field indicates the version of the capability structure.
Capability ID (CID) — RO. This field indicates this is a PCI Express* link capability section of an
RCRB.
ESD—Element Self Description Register
Offset Address: 0104–0107h
Default Value: 00000602h
Attribute:
Size:
R/WO, RO
32-bit
Bit
31:24
23:16
15:8
7:4
3:0
Description
Port Number (PN) — RO. A value of 0 to indicate the egress port for the Intel^® ICH6.
Component ID (CID) — R/WO. This field indicates the component ID assigned to this element by
software. This is written once by platform BIOS and is locked until a platform reset.
Number of Link Entries (NLE) — RO. This field indicates that one link entry (corresponding to
DMI), 4 root port entries (for the downstream ports), and the Intel High Definition Audio device are
described by this RCRB.
Reserved
Element Type (ET) — RO. This field indicates that the element type is a root complex internal link.
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Intel^® I/O Controller Hub 6 (ICH6) Family Datasheet