Intel
®
Core
TM
i7-620LE/UE, i7-610E, i5-520E and Intel
®
Celeron
®
Processor P4500, P4505 Series
April 2010
Datasheet Addendum
Document Number: 323178-002
133
Processor Configuration Registers
6.3
PCI Device 6 - Extended Configuration
6.3.1
VCECH - Virtual Channel Enhanced Capability Header
B/D/F/Type:
0/6/0/MMR
Address Offset:
100-103h
Default Value:
00010002h
Access:
RW-O; RO;
Size:
32 bits
Indicates PCI Express device Virtual Channel capabilities. Extended capability
structures for PCI Express devices are located in PCI Express extended configuration
space and have different field definitions than standard PCI capability structures.
6.3.2
PVCCAP1 - Port VC Capability Register 1
B/D/F/Type:
0/6/0/MMR
Address Offset:
104-107h
Default Value:
00000000h
Access:
RO;
Table 72. PCI Device 6 - Extended Configuration
Register Name
Register
Symbol
Register
Start
Register
End
Default Value
Access
Virtual Channel Enhanced Capability
Header
VCECH
100
103
00010002h
RW-O; RO;
Port VC Capability Register 1
PVCCAP1
104
107
00000000h
RO;
Port VC Capability Register 2
PVCCAP2
108
10B
00000000h
RO;
Port VC Control
PVCCTL
10C
10D
0000h
RO; RW;
VC0 Resource Capability
VC0RCAP
110
113
00000001h
RO;
VC0 Resource Control
VC0RCTL
114
117
800000FFh
RO; RW;
VC0 Resource Status
VC0RSTS
11A
11B
0002h
RO;
Table 73. VCECH - Virtual Channel Enhanced Capability Header
Bit
Access
Default
Value
RST/
PWR
Description
31:20
RW-O
000h
Core
Pointer to Next Capability (PNC):
The Link Declaration Capability is the next in the PCI
Express extended capabilities list.
19:16
RO
1h
Core
PCI Express Virtual Channel Capability Version
(PCIEVCCV):
hard wired to 1 to indicate compliances with the 1.1
version of the PCI Express specification. Note: This version
does not change for 2.0 compliance
15:0
RO
0002h
Core
Extended Capability ID (ECID):
Value of 0002 h identifies this linked list item (capability
structure) as being for PCI Express Virtual Channel
registers.