QG82945GSE S LB2R Intel, QG82945GSE S LB2R Datasheet - Page 267

• Manufacturer Part Number: QG82945GSE S LB2R
• Description: GRAPHICS AND MEM CNTRL HUB; No. of Pins: 998; Package / Case: FCBGA; Interface Type: PCI, SATA, USB
• Manufacturer: Intel

PCI Express Graphics Device 1 Configuration Registers (D1:F0)
7.2.7
7.2.8
Datasheet
VC0RSTS - VC0 Resource Status
B/D/F/Type:
Address Offset:
Default Value:
Access:
Size:
This register reports the Virtual Channel specific status.
RCLDECH - Root Complex Link Declaration Enhanced
B/D/F/Type:
Address Offset:
Default Value:
Access:
Size:
This capability declares links from this element (PEG) to other elements of the root
complex component to which it belongs. See the current PCI Local Bus Specification for
link/topology declaration requirements.
31:20
19:16
15:2
15:0
1:1
Bit
Bit
0
Access
Access
RO
RO
RO
RO
RO
RO
Default
Default
0000h
0005h
Value
Value
000h
1b
0b
1h
Reserved
VC0 Negotiation Pending (VC0NP):
(initialization or disabling).
This bit indicates the status of the process of Flow Control
initialization. It is set by default on Reset, as well as whenever
the corresponding Virtual Channel is Disabled or the Link is in the
DL_Down state. It is cleared when the link successfully exits the
FC_INIT2 state.
Before using a Virtual Channel, software must check whether the
VC Negotiation Pending fields for that Virtual Channel are cleared
in both Components on a Link.
Reserved
Pointer to Next Capability (PNC):
This is the last capability in the PCI Express* extended
capabilities list
Link Declaration Capability Version (LDCV):
Hardwired to 1 to indicate compliances with the 1.0 version of the
PCI Express specification.
Extended Capability ID (ECID):
Value of 0005 h identifies this linked list item (capability
structure) as being for PCI Express Link Declaration Capability.
See corresponding Egress Port Link Declaration Capability
registers for diagram of Link Declaration Topology.
0: The VC negotiation is complete.
1: The VC resource is still in the process of negotiation
0/1/0/MMR
11A-11Bh
0002h
RO
16 bits
0/1/0/MMR
140-143h
00010005h
RO
32 bits
Description
Description
267