Specification Sheet
Datasheet, Volume 2 of 2 237
MCHBAR Registers
7.73 SA—Offset 5918h
System Agent Performance status. Indicates current SA PLLs ratios. Frequency to be
calculated according to reference.
Access Method
Default: 0h
10
0h
ROV
PBM_PL1: PBM PL1 (pkg, platform), RO, When set by hardware indicates that PBM
PL1 (package or platform PL1) has cause GT frequency clipping
9
0h
ROV
SPARE_GT_9: Reserved
8
0h
ROV
OTHER: Other (IccMax, PL4, etc) Status, RO, When set by hardware indicates that
other has cause reason GT frequency clipping
7
0h
ROV
VR_TDC: VR TDC (Thermal design current) Status, RO, When set by hardware
indicates that VR TDC (Thermal design current has cause GT frequency clipping
6
0h
ROV
VR_THERMALERT: Hot VR (any processor VR) Status, RO, When set by hardware
indicates that Hot VR (any processor VR) has cause GT frequency clipping
5
0h
ROV
RATL: Running average thermal limit Status, R0, When set by hardware indicates that
Running average thermal limit has cause GT frequency clipping
4
0h
ROV
RSR_LIMIT: Reserved
3
0h
ROV
SPARE_GT_3: Reserved
2
0h
ROV
SPARE_GT_2: Reserved
1
0h
ROV
THERMAL: Thermal Status, RO, When set by hardware indicates that Thermal event
has cause GT frequency clipping
0
0h
ROV
PROCHOT: PROCHOT# Status, RO, When set by hardware indicates that PROCHOT#
has cause GT frequency clipping
Bit
Range
Default &
Access
Field Name (ID): Description
Type: MEM
(Size: 32 bits)
Offset: [B:0, D:0, F:0] + 5918h
3
1
2
8
2
4
2
0
1
6
1
2
8
4
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
UCLK_RATIO
ICLK_RATIO
FCLK_RATIO
QCLK_REFERENCE
QCLK_RATIO