Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333 Ficha De Dados
Códigos do produto
P4X-UPE3210-316-6M1333
Datasheet
185
Host-Primary PCI Express* Bridge Registers (D1:F0)
6.47
VCECH—Virtual Channel Enhanced Capability
Header
B/D/F/Type:
0/1/0/MMR
Address Offset: 100–103h
Default Value:
14010002h
Access:
RO
Size:
32 bits
This register 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.
6.48
PVCCAP1—Port VC Capability Register 1
B/D/F/Type:
0/1/0/MMR
Address Offset: 104–107h
Default Value:
00000000h
Access:
RO
Size:
32 bits
This register describes the configuration of PCI Express Virtual Channels associated
with this port.
Bit
Access
Default
Value
Description
31:20
RO
140h
Pointer to Next Capability (PNC): The Link Declaration Capability is the next
in the PCI Express extended capabilities list.
in the PCI Express extended capabilities list.
19:16
RO
1h
PCI Express Virtual Channel Capability Version (PCIEVCCV): Hardwired to
1 to indicate compliances with the 1.1 version of the PCI Express specification.
1 to indicate compliances with the 1.1 version of the PCI Express specification.
15:0
RO
0002h
Extended Capability ID (ECID): Value of 0002 h identifies this linked list item
(capability structure) as being for PCI Express Virtual Channel registers.
(capability structure) as being for PCI Express Virtual Channel registers.
Bit
Access
Default
Value
Description
31:7
RO
00000h Reserved
6:4
RO
000b
Low Priority Extended VC Count (LPEVCC): Indicates the number of
(extended) Virtual Channels in addition to the default VC belonging to the low-
priority VC (LPVC) group that has the lowest priority with respect to other VC
resources in a strict-priority VC Arbitration.
The value of 0 in this field implies strict VC arbitration.
(extended) Virtual Channels in addition to the default VC belonging to the low-
priority VC (LPVC) group that has the lowest priority with respect to other VC
resources in a strict-priority VC Arbitration.
The value of 0 in this field implies strict VC arbitration.
3
RO
0b
Reserved
2:0
RO
000b
Extended VC Count (EVCC): Indicates the number of (extended) Virtual
Channels in addition to the default VC supported by the device.
Channels in addition to the default VC supported by the device.