Thermal/Mechanical Specifications and Design Guide
75
PECI Interface
7.1.2.7.9
Thermal Averaging Constant Write / Read
This feature allows the PECI host to control the window over which the estimated
processor PECI temperature is filtered. The host may configure this window as a power
of two. For example, programming a value of 5 results in a filtering window of 2
5
or 32
samples. The maximum programmable value is 8 or 256 samples. Note that
programming a value of zero would disable the PECI temperature averaging feature.
The default value of the thermal averaging constant is 4 which translates to an
averaging window size of 2
4
or 16 samples. More details on the PECI temperature
filtering function can be found in
7.1.3
Per Core Temperature Read
This feature allows to read per core temperature from each core, GT or system agent.
The temperature returned is an instantaneous value as opposed to the averaged value
returned by GetTemp() command. Per-core temperature reads are not intended for
system thermal management, but rather for validation or informational purposes.
Figure 7-28. Thermal Status Word
Critical Temperature Log
Critical Temperature Status
Bidirectional PROCHOT# Log
Bidirectional PROCHOT#
Status
TCC Activation Log
TCC Activation Status
31
6 5 4 3 2 1 0
Reserved
Figure 7-29. Thermal Averaging Constant Write / Read
Thermal Averaging Constant
RESERVED
4
31
PECI Temperature
Averaging Constant
3
0
Summary of Contents for BX80619I73820
Page 10: ...10 Thermal Mechanical Specifications and Design Guide...
Page 14: ...Introduction 14 Thermal Mechanical Specifications and Design Guide...
Page 104: ...Thermal Solutions 104 Thermal Mechanical Specifications and Design Guide...
Page 112: ...Mechanical Drawings 112 Thermal Mechanical Specifications and Design Guide...
Page 118: ...Socket Mechanical Drawings 118 Thermal Mechanical Specifications and Design Guide...
Page 124: ...Package Mechanical Drawings 124 Thermal Mechanical Specifications and Design Guide...
