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
147
Volume 2—Thermal Management—C2000 Product Family
Thermal Interrupts and Thresholds
8.5
Thermal Interrupts and Thresholds
When one of the specified thermal thresholds is exceeded, the threshold is
programmed to trigger an interrupt. The thermal management task in P-Unit code
monitors the die temperature readings from each sensor, detect if any interrupt
thresholds are exceeded and enabled, and write the bits in the via PMLink configuration
registers. The thermal thresholds in the SoC are both programmable via software and
hard coded.
summarizes the applicability of the thermal thresholds and their
supported actions and triggers.
The SoC supports additional thermal-related mechanisms that are not directly tied to
thermal sensors.
Table 8-3.
Thermal Threshold Descriptions and Actions
Sensor
Location
Thermal Trigger
Control/Description
Actions
Core
Programmable
Threshold 1 (per core)
Threshold specified as an offset
below T
J-MAX
ACPI/software use
Core
Programmable
Threshold 2 (per core)
Threshold specified as an offset
below T
J-MAX
ACPI/software use
Core
HOT Threshold
Threshold specified as an offset
below T
J-MAX
• Intel
®
Thermal Monitor 1/
Intel
®
Thermal Monitor 2
throttling
Core
Out of Specification
Threshold
Threshold specified as an offset
above T
J-MAX
ACPI/software use
Uncore
Programmable
Threshold 1 (AUX0)
Threshold specified as an offset
below T
J-MAX
ACPI/software use
Uncore
Programmable
Threshold 2 (AUX1)
Threshold specified as an offset
below T
J-MAX
ACPI/software use
Uncore
Programmable
Threshold 3 (AUX2)
Threshold specified as an offset
below T
J-MAX
ACPI/software use
Uncore
Programmable
Threshold 4 (AUX3/
HOT Trip)
Threshold specified as an offset
below T
J-MAX
ACPI/software use
System
(Core and
Uncore)
PROCHOT_B
System triggers Intel
®
Thermal
Monitor via PROCHOT_B.
• Intel
®
Thermal Monitor 1/
Intel
®
Thermal Monitor 2
throttling
• PROCHOT_B interrupt
System
(Core and
Uncore)
THERMTRIP_N
Threshold specified as an offset
above T
J-MAX
Shut off all the PLLs and power
rails to prevent damage.