Intel E7-8891 v2 CM8063601377422 User Manual

Product codes
CM8063601377422
Page of 504
Intel
®
 Xeon
® 
Processor E7-2800/4800/8800 v2 Product Family
303
Datasheet Volume Two: Functional Description, February 2014
Integrated I/O (IIO) Configuration Registers
14.3.6
DMIVC1RSTS
DMI VC1 Resource Status
Reports the Virtual Channel specific status. 
14.3.7
DMIVCPRCAP
DMI VCP Resource Capability
Type:
MEM
PortID:
8’h7e
Bus:
0
Device:
0Function:0
Offset:
0x26
Bit
Attr
Default Description
15:2
RV
-
Reserved  
1:1
RO_V
0x1
vc1np:
Virtual Channel 1 Negotiation Pending  
0: The VC negotiation is complete.1: The VC resource is still in the process of 
negotiation (initialization or
disabling).
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.
BIOS Requirement: 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. 
0:0
RV
-
Reserved  
Type:
MEM
PortID:
8’h7e
Bus:
0
Device:
0Function:0
Offset:
0x1a
Bit
Attr
Default Description
31:16 RV
0x0
Reserved  
15:15 RO
0x0
rejsnpt:
Reject Snoop Transactions  
0: Transactions with or without the No Snoop bit set within the TLP header are 
allowed on this VC.1: Any transaction without the No Snoop bit set within the TLP 
header will be rejected as an Unsupported Request. 
14:0
RV
-
Reserved  
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