Datasheet

Processor Uncore Configuration Registers
172 Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family
Datasheet Volume Two: Functional Description, February 2014
13.7.2 Device 10 Function 1
Type: CFG PortID: N/A
Bus: 1 Device: 10 Function: 0
Offset: 0xe4
Bit Attr Default Description
31:28 RV - Reserved.
27:24 RO_V 0x0
TJ Max TCC Offset (TJ_MAX_TCC_OFFSET):
Temperature offset in degrees (C) from the TJ Max. Used for throttling
temperature.
Will not impact temperature reading. If offset is allowed and set - the throttle
will occur and reported at lower than Tj_max
23:16 RO_V 0x0
Thermal Monitor Reference Temperature (REF_TEMP):
This field indicates the maximum junction temperature, also referred to as the
throttle temperature, TCC activation temperature or prochot temperature. This
is the temperature at which the Thermal Monitor is activated.
15:8 RO_V 0x0
Fan Temperature target offset (FAN_TEMP_TARGET_OFST):
Fan Temperature target offset (a.k.a. T-Control).
Indicates the relative offset from the Thermal Monitor Trip Temperature at
which fans should be engaged.
7:0 RV - 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
MINGNT 0x3e 8
MAXLAT 0x3f 8
SSKPD 0x6c 64
C2C3TT 0x74 32
CSR_DESIRED_CORES 0xa4 32