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Specification Sheet

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DMIBAR Registers
140 Datasheet, Volume 2 of 2
6.3 DMI Port VC Capability Register 2
(DMIPVCCAP2)—Offset 8h
Describes the configuration of PCI Express Virtual Channels associated with this port.
Access Method
Default: 0h
3
1
2
8
2
4
2
0
1
6
1
2
8
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
RSVD
LPEVCC
RSVD
EVCC
Bit
Range
Default &
Access
Field Name (ID): Description
31:7
0h
RO
Reserved (RSVD): Reserved.
6:4
0h
RO
LPEVCC: Low Priority Extended VC Count: 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
0h
RO
Reserved (RSVD): Reserved.
2:0
0h
RW_O
EVCC: Extended VC Count: Indicates the number of (extended) Virtual Channels in
addition to the default VC supported by the device.
The Private Virtual Channel, VC1 and the Manageability Virtual Channel are not
included in this count.
Type: MEM
(Size: 32 bits)
Offset: [B:0, D:0, F:0] + 8h
3
1
2
8
2
4
2
0
1
6
1
2
8
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
VCATO
RSVD
VCAC