Specification Sheet

Interfaces
50 Intel
®
Xeon
®
Processor E5-1600/E5-2600/E5-4600 v2 Product Families
Datasheet Volume One of Two
Power Limit for
the VCC Power
Plane Write /
Read
25 0x0000 N/A Power Limit Data Program power limit
for VCC power plane
MSR 638h: PP0_POWER_LIMIT
CSR: PP0_POWER_LIMIT
Power Limit for
the VCC Power
Plane Write /
Read
25 0x0000 Power Limit
Data
N/A Read power limit
data for VCC power
plane
MSR 638h: PP0_POWER_LIMIT
CSR: PP0_POWER_LIMIT
Package Power
Limits For
Multiple Turbo
Modes
26 0x0000 N/A Power Limit 1
Data
Write power limit
data 1 in multiple
turbo mode.
MSR 610h:
PACKAGE_POWER_LIMIT
CSR: PACKAGE_POWER_LIMIT
Package Power
Limits For
Multiple Turbo
Modes
27 0x0000 N/A Power Limit 2
Data
Write power limit
data 2 in multiple
turbo mode.
MSR 610h:
PACKAGE_POWER_LIMIT
CSR: PACKAGE_POWER_LIMIT
Package Power
Limits For
Multiple Turbo
Modes
26 0x0000 Power Limit 1
Data
N/A Read power limit 1
data in multiple
turbo mode.
MSR 610h:
PACKAGE_POWER_LIMIT
CSR: PACKAGE_POWER_LIMIT
Package Power
Limits For
Multiple Turbo
Modes
27 0x0000 Power Limit 2
Data
N/A Read power limit 2
data in multiple
turbo mode.
MSR 610h:
PACKAGE_POWER_LIMIT
CSR: PACKAGE_POWER_LIMIT
Package Power
Limit
Performance
Status Read
08 0x00FF - CPU
package
Accumulated
CPU throttle
time
N/A Read the total time
for which the
processor package
was throttled due to
power limiting.
CSR:
PACKAGE_RAPL_PERF_STATUS
Efficient
Performance
Indicator Read
06 0x0000 Number of
productive
processor cycles
N/A Read number of
productive cycles for
power budgeting
purposes.
N/A
ACPI P-T Notify
Write & Read
33 0x0000 N/A New p-state
equivalent of P1
used in
conjunction with
package power
limiting
Notify the processor
PCU of the new p-
state that is one
s
t
ate below the
turbo frequency as
specified through the
last ACPI Notify
N/A
Table 2-8. RdPkgConfig() & WrPkgConfig() CPU Thermal and Power Optimization
Services Summary (Sheet 3 of 4)
Service
Index
Value
(decimal)
Parameter
Value
(word)
RdPkgConfig()
Data
(dword)
WrPkgConfig
()
Data
(dword)
Description
Alternate
Inband
MSR or CSR
Access