Техническая Спецификация для Intel C2350 FH8065401488914
Модели
FH8065401488914
Volume 2—Thermal Management—C2000 Product Family
CPU Thermal Management Registers
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 2 of 3
September 2014
146
Order Number: 330061-002US
8.3
CPU Thermal Management Registers
Thermal management control and status registers are distributed between Model
Specific Registers (MSR) in each core, Power Management Link (PMLink) configuration
registers, and P-Unit registers. Further register descriptions which control thermal
management features are found in the Avoton/Rangeley SoC BIOS Writer’s Guide
(BWG).
8.4
Digital Thermal Sensors (DTS)
The on-die Digital Thermal Sensor (DTS) reports the temperature of the associated
core as a temperature relative to the factory configured TCC activation temperature
(i.e., REF_TEMP or T
J-MAX
). There is one DTS per core.
The DTS outputs a temperature (IA32_THERM_STATUS[dig_temp_readout]) relative to
the maximum supported operating temperature of the SoC which is the PROCHOT_B
signal activation temperature as configured when the SoC was manufactured. The
factory configured TCC activation temperature can be read from the
CPU_THERM_TEMPERATURE[ref_temp].
The system BIOS can convert the relative temperature to an absolute temperature. The
temperature returned by the digital sensor is dependent on the configuration of
CPU_THERM_CFG2[therm_valid_range].
The SoC is out of specification anytime the temperature is above PROCHOT. Extreme
over temperature conditions are detectable via an Out Of Spec status bit. When this bit
is set, the processor is operating out of specification and an immediate shutdown of the
system occurs. The system BIOS detects that this bit is set and informs the operating
system that a critical shutdown is warranted. The CPU operation and code execution
are not guaranteed once the activation of the Out of Spec status bit is set.
For more information on the conversion of the DTS relative temperature to an absolute
temperature, refer to the Avoton/Rangeley SoC BIOS Writer’s Guide (BWG).