Intel E7-8891 v2 CM8063601377422 User Manual

Product codes
CM8063601377422
Page of 504
Intel
®
 Xeon
® 
Processor E7-2800/4800/8800 v2 Product Family
459
Datasheet Volume Two: Functional Description, February 2014
Integrated I/O (IIO) Configuration Registers
95:90
ROS_V
0x0
Reg[5:0]:
Register Number.
This field is valid for configuration requests only.
89:84
RV
-
Reserved.
83:80
ROS_V
0x0
ExtReg[3:0]:
Extended Register Number.
This field is valid for configuration requests only.
79:64
ROS_V
0x0
RouteID[15:0]:
ID Routing Fields.
This field is valid for configuration requests only. This contains information 
to route the packet to the target and is comprised as follows: 
{device[4:0], function[2:0], bus[7:0]}
63:60
ROS_V
0x0
Last_DW_BE[3:0]:
Last DW Byte Enables. 
This field is valid for memory, I/O, and configuration requests only. The 
value in this field is set to all 0’s for I/O and configuration requests.
59:56
ROS_V
0x0
1st_DW_BE[3:0]:
First DW Byte Enables.
This field is valid for memory, I/O and configuration requests only.
55:48
ROS_V
0x0
Tag[7:0]:
Tag.
This field is valid for memory, I/O and configuration requests only. This 
field in combination with the Requester ID field form a unique Transaction 
ID. The value from the original request must be preserved into the 
completion.
47:32
ROS_V
0x0
ReqID[15:0]:
Requester ID.
This field is located here only for memory, configuration, I/O, and 
message requests. This field is located elsewhere for completions. This 
field in combination with the Tag field form a unique Transaction ID. The 
Requester ID is comprised as follows: {device[4:0], function[2:0], 
bus[7:0]}. The value from the original request must be preserved into the 
completion.
31:31
ROS_V
0x0
TD:
TLP Digest.
A value of “1” in this field indicates the presence of a single DW TLP digest 
at the end of the packet for use in ECRC protection as defined by the 
PCIe* specification. 
Note: Intel Xeon processor E7-2800/4800/8800 v2 product family Product 
Family IIO does not support ECRC generation/checking so the switch does 
not store/forward ECRC.
30:30
ROS_V
0x0
EP:
Error Poisoned.
This field is used to indicate that the data payload contained in the packet 
is poisoned. 
Type:
CFG
PortID:
N/A
Bus:
0
Device:
5Function:2
Offset:
IRPP0: 0x240, 
Size: 128 bits
IRPP1: 0x2c0 
Bit
Attr
Default
Description
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