Datasheet

Datasheet, Volume 2 167
Processor Configuration Registers
2.12.10 DMIVC1RSTS—DMI VC1 Resource Status Register
This register reports the Virtual Channel specific status.
B/D/F/Type: 0/0/0/DMIBAR
Address Offset: 26–27h
Reset Value: 0002h
Access: RO
Bit Attr
Reset
Value
Description
15:2 RO 0000h Reserved
1RO 1b
Virtual Channel 1 Negotiation Pending (VC1NP)
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 whenever 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.
0RO 0bReserved