Datasheet

Processor Uncore Configuration Registers
170 Intel
®
Xeon
®
Processor E7-2800/4800/8800 v2 Product Family
Datasheet Volume Two: Functional Description, February 2014
13.7.1.4 PACKAGE_POWER_SKU_UNIT
Defines units for calculating SKU power and timing parameters.
PCU microcode will update the contents of this register.
13.7.1.5 PACKAGE_ENERGY_STATUS
Package energy consumed by the entire PCU microcode (including IA, GT and uncore).
The counter will wrap around and continue counting when it reaches its limit.
30:16 RO_V Varies
Minimal Package Power (PKG_MIN_PWR):
The minimum allowed power limit for a processor that could be used in the
PACKAGE_POWER_LIMIT register. The value is in the units identified in
POWER_UNIT field in PACKAGE_POWER_SKU_UNIT register.
15:15 RV - Reserved.
14:0 RO_V Varies
TDP Package Power (PKG_TDP):
The package’s Thermal Design Power allowed for this processor. The value is in
the units identified in POWER_UNIT field in PACKAGE_POWER_SKU_UNIT
register.
Type: CFG PortID: N/A
Bus: 1 Device: 10 Function: 0
Offset: 0x84
Bit Attr Default Description
Type: CFG PortID: N/A
Bus: 1 Device: 10Function:0
Offset: 0x8c
Bit Attr Default Description
31:20 RV - Reserved.
19:16 RO_V 0xa
Time Unit (TIME_UNIT):
Time Units used for power control registers.
The actual unit value is calculated by 1 / Power (2,TIME_UNIT) second.
The default value of 0Ah corresponds to 976 usec.
15:13 RV - Reserved.
12:8 RO_V 0x10
Energy Units (ENERGY_UNIT):
Energy Units used for power control registers.
The actual unit value is calculated by 1 / Power (2,ENERGY_UNIT) J.
The default value of 10h corresponds to 15.3 uJ.
7:4 RV - Reserved.
3:0 RO_V 0x3
Power Units (PWR_UNIT):
Power Units used for power control registers.
The actual unit value is calculated by 1 / Power (2,PWR_UNIT) W.
The default value of 0011b corresponds to 1 / 8 W.