Datasheet

Processor Uncore Configuration Registers
158 Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family
Datasheet Volume Two: Functional Description, February 2014
13.5.1.1 QPIMISCSTAT
Intel
®
QPI MISC Status.
This is a status register for Common logic in Intel
®
QPI.
13.5.2 Device 8, 9, 24 Function 4
CAPPTR 0x34 8 8, 9, 24
INTL 0x3c 8 8, 9, 24
INTPIN 0x3d 8 8, 9, 24
MINGNT 0x3e 8 8, 9, 24
MAXLAT 0x3f 8 8, 9, 24
QPIMISCSTAT 0xd4 32 8, 9, 24
Register name Offset Size Device
Type: CFG PortID: N/A
Bus: 1 Device: 8 Function: 0
Bus: 1 Device: 9 Function: 0 (From B stepping)
Bus: 1 Device: 24 Function: 0
Offset: 0xd4
Bit Attr Default Description
31:3 RV - reserved.
2:0 RO_V 0x3
qpi_rate:
This reflects the current Intel
®
QPI rate setting into the PLL.
011 - 6.4 GT/s
100 - 7.2 GT/s
101 - 8 GT/s
other - Reserved
Register name Offset Size
VID 0x0 16
DID 0x2 16
PCICMD 0x4 16
PCISTS 0x6 16
RID 0x8 8
CCR 0x9 24
CLSR 0xc 8
PLAT 0xd 8
HDR 0xe 8
BIST 0xf 8
SVID 0x2c 16
SDID 0x2e 16
CAPPTR 0x34 8
INTL 0x3c 8
INTPIN 0x3d 8