Dmivcprsts-Dmi Vcp Resource Status Register - Intel 2ND GENERATION CORE PROCESSOR FAMILY DESKTOP - DATASHEET VOLUME 2 01-2011 Datasheet

2.12.13 DMIVCPRSTS—DMI VCp Resource Status Register
This register reports the Virtual Channel specific status.
B/D/F/Type:
Address Offset:
Reset Value:
Access:
Size:
BIOS Optimal Default
Bit
15:2
1
0
194
0/0/0/DMIBAR
32–33h
0002h
RO-V
16 bits
0000h
Reset RST/
Attr
Value PWR
RO 0h
RO-V 1b Uncore
RO 0h
Processor Configuration Registers
Description
Reserved
Virtual Channel private Negotiation Pending (VCPNP)
0 = The VC negotiation is complete.
1 = The VC resource is still in the process of negotiation
(initialization or disabling).
Software may use this bit when enabling or disabling the VC. This
bit indicates the status of the process of Flow Control initialization.
It is set by default on Reset, as well as when 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
Datasheet, Volume 2