Intel E3815 FH8065301567411 Data Sheet
Product codes
FH8065301567411
Thermal Management
Intel
®
Atom™ Processor E3800 Product Family
110
Datasheet
8.4
Platform Trips
8.4.1
PROCHOT#
The platform components use the signal PROCHOT# to indicate thermal events to SoC.
The processor core HOT trip as well as the processor AUX 3 trip are individually sent to
firmware, which internally combines them and drives the appropriate PROCHOT back.
Assertion of the PROCHOT# input will trigger Thermal Monitor 1 or Thermal Monitor 2
throttling mechanisms if they are enabled.
firmware, which internally combines them and drives the appropriate PROCHOT back.
Assertion of the PROCHOT# input will trigger Thermal Monitor 1 or Thermal Monitor 2
throttling mechanisms if they are enabled.
8.5
Thermal Throttling Mechanisms
Thermal throttling mechanisms are implemented to try to reduce temperature by
reducing power consumption in response to a HOT condition. Actions taken as a result
of Thermal Trip indication can be as simple as throttling bandwidth and frequency to as
drastic as shutting down the PLL’s and the entire system. Actions are primarily taken in
to prevent system breakdown and are dependent on the severity of the trips.
reducing power consumption in response to a HOT condition. Actions taken as a result
of Thermal Trip indication can be as simple as throttling bandwidth and frequency to as
drastic as shutting down the PLL’s and the entire system. Actions are primarily taken in
to prevent system breakdown and are dependent on the severity of the trips.
8.6
Thermal Status
The firmware captures Thermal Trip events (other than THERMTRIP) in status registers
to trigger thermal actions. Associated with each event is a set of programmable
actions. For a complete list of refer to the Bay Trail SoC BIOS Writer’s Guide.
to trigger thermal actions. Associated with each event is a set of programmable
actions. For a complete list of refer to the Bay Trail SoC BIOS Writer’s Guide.
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