Intel C2518 FH8065501516710 Data Sheet
Product codes
FH8065501516710
Intel
®
Atom™ Processor C2000 Product Family for Microserver
September 2014
Datasheet, Vol. 2 of 3
Order Number: 330061-002US
413
Volume 2—SMBus 2.0 Unit 2 - PECI—C2000 Product Family
CPU Thermal and Power Optimization Capabilities
WrPkgConfig()
“Wake on
PECI” Mode
bit Write
5
0x0001:
Set
0x0000:
Reset
“Wake on
PECI” mode
bit
Enables waking-up of
SoC from a lower
Package State.
none
RdPkgConfig()
“Wake on
PECI” Mode
bit Read
5
0x0000
“Wake on
PECI” mode
bit
Read status of “Wake
on PECI” mode bit.
none
RdPkgConfig()
Package Power
Limit
Performance
Status Read
8
0x00FF:
CPU
package
Accumulated
CPU throttle
time
Read the total time for
which the processor
package was throttled
due to power limiting.
PACKAGE_RAPL_PERF_STATUS
(CSR)
RdPkgConfig()
Per Core DTS
Temperature
Read
9
0x0000
through
0x0007:
Cores 0
through
7
0x00FF:
System
Agent +
C20
Per core DTS
maximum
temperature
Read the maximum
DTS temperature of a
particular core or the
System Agent within
the processor die in
relative PECI
temperature format.
IA32_CR_THERM_STATUS
To get the equivalent of the
To get the equivalent of the
architectural MSR
IA_PACKAGE_THERM_STATUS, read
IA32_CR_THERM_STATUS for each
core and take the maximum value
that was read.
RdPkgConfig()
Temperature
Target Read
16
0x0000
Processor
T
T
J-MAX
and
T
T
CONTROL
Returns the maximum
processor junction
temperature and
processor T
CONTROL.
IA32_TEMPERATURE_TARGET (MSR)
TEMPERATURE_TARGET (CSR)
TEMPERATURE_TARGET (CSR)
RdPkgConfig()
Current Limit
Read
17
0x0000
Current Limit
per power
plane
Reads the current limit
on the VCC power
plane in 1/8 of an
ampere.
none
RdPkgConfig()
Thermal
Averaging
Constant Read
21
0x0000
Thermal
Averaging
Constant
Reads the Thermal
Averaging Constant.
none
Table 17-26. Summary of CPU Thermal and Power Optimization Services (Sheet 2 of 4)
Service
Index Field
(Decimal)
Parameter
Field
(Word)
PECI Data
Field
(DWord)
Description
Alternate In-band MSR or CSR
Access