Техническая Спецификация для Intel Xeon Wolfdale E3210 P4X-UPE3210-316-6M1333

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Direct Media Interface (DMI) RCRB
260
Datasheet
9.1
DMIVCECH—DMI Virtual Channel Enhanced 
Capability
B/D/F/Type:
0/0/0/DMIBAR
Address Offset: 0–3h
Default Value:
04010002h
Access:
RO
Size:
32 bits
This register indicates DMI Virtual Channel capabilities.
9.2
DMIPVCCAP1—DMI Port VC Capability Register 1
B/D/F/Type:
0/0/0/DMIBAR
Address Offset: 4–7h
Default Value:
00000001h
Access:
RWO, 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
040h
Pointer to Next Capability (PNC): This field contains the offset to the next 
PCI Express capability structure in the linked list of capabilities (Link Declaration 
Capability).
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.
Note: This version does not change for 2.0 compliance.
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.
Bit
Access
Default 
Value
Description
31:7
RO
0000000h 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.
3
RO
0b
Reserved 
2:0
RWO
001b
Extended VC Count (EVCC): Indicates the number of (extended) Virtual 
Channels in addition to the default VC supported by the device.
The Private Virtual Channel is not included in this count.