Intel E7-8891 v2 CM8063601377422 User Manual

Product codes
CM8063601377422
Page of 504
Intel
®
 Xeon
® 
Processor E7-2800/4800/8800 v2 Product Family
75
Datasheet Volume Two: Functional Description, February 2014
Registers Overview and Configuration Process
Table 12-1. Functions specifically handled by the processor (Sheet 1 of 3)
Register Group
DID
Device
Function
Comment
DMI2 
E00h
0
0
x4 Link from Processor to PCH
PCI Express Root Port in DMI2 
Mode
E01h
0
0
Device 0 will work as a x4 PCI Express 
Port
PCI Express Root Port 2 
E04h,
E05h,
E06h,
E07h
2
0,
1,
2,
3
x16, x8 or x4 max link width
PCI Express Root Port 3
E08h,
E09h,
E0Ah,
E0Bh
3
0,
1,
2,
3
x16, x8 or x4 max link width
IIO Core
E28h
5
0
Address Map, VTd_Misc, System 
Management
IIO Core
E29h
5
1
Hot Plug
IIO Core
E2Ah
5
2
RAS, Control Status and Global Errors
IIO Core
E2Ch
5
4
I/O APIC
PCI Express DFx
E10h,
E13h,
E17h
6
0,
3,
7
PCI Express DFx
PCI Express* DFx
E18h,
E1Ch
7
0,
4
PCI Express DFx
Intel
®
 Quick Data DMA
E20h,
E21h,
E22h,
E23h,
E24h,
E25h,
E26h,
E27h
4
0,
1,
2,
3,
4,
5,
6,
7
DMA Channel 0
DMA Channel 1
DMA Channel 2
DMA Channel 3
DMA Channel 4
DMA Channel 5
DMA Channel 6
DMA Channel 7
Intel
®
 Quick Data DMA
E2Eh,
E2Fh
4
0,
1
RAID 5/6
Intel
®
QPI Link 0
E80h
8
0
Intel
®
QPI Link 0 General Registers
Intel
®
QPI Link 1
E90h
9
0
Intel
®
QPI Link 1 General Registers
Intel
®
QPI Link 2
E40h
24
0
Intel
®
QPI Link 2 General Registers
Intel
®
QPI Link 0 PMON
E32h
8
2
Intel
®
QPI Link 0 Performance 
Monitoring
Intel
®
QPI Link 1 PMON
E33h
9
2
Intel
®
QPI Link 1 Performance 
Monitoring
Intel
®
QPI Link 2 PMON
E3Ah
24
2
Intel
®
QPI Link 2 Performance 
Monitoring
Intel
®
QPI Link 0 REUT 
E83h,
E84h,
E85h
8
3,
4,
5
Intel
®
QPI Link 0 REUT
Intel
®
QPI Link 1 REUT
E93h,
E94h,
E95h
9
3,
4,
5
Intel
®
QPI Link 1 REUT
Intel
®
QPI Link 2 REUT
E43h,
E44h,
E45h
24
3,
4,
5
Intel
®
QPI Link 2 REUT 
Intel
®
QPI Link 0 &1 DFX
E87h
8
7
Intel
®
QPI Link 0 & 1 DFX
Intel
®
QPI Link 2 DFX
E47h
24
7
Intel
®
QPI Link 2 DFX
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