Intel BX80619I73820, Design Manual

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4 Thermal/Mechanical Specifications and Design Guide
6.1.2 TTV T
CASE
and DTS Based Thermal Specifications........................................44
6.1.2.1 Thermal Specification.................................................................44
6.1.3 Processor Specification for Operation Where Digital
Thermal Sensor Exceeds TCONTROL..........................................................46
6.1.4 Thermal Metrology ..................................................................................47
6.2 Processor Core Thermal Features .........................................................................48
6.2.1
Processor Temperature............................................................................48
6.2.2 Adaptive Thermal Monitor ........................................................................48
6.2.2.1
Frequency/SVID Control.............................................................49
6.2.2.2 Clock Modulation .......................................................................50
6.2.3 On-Demand Mode...................................................................................50
6.2.4 PROCHOT_N Signal .................................................................................50
6.2.5 THERMTRIP_N Signal ..............................................................................51
6.3 Platform Environment Control Interface (PECI) ......................................................51
6.3.1
Introduction...........................................................................................51
6.3.2 PECI Client Capabilities............................................................................52
6.4 Fan Speed Control with Digital Thermal Sensor ......................................................52
7 PECI Interface .........................................................................................................53
7.1 Platform Environment Control Interface (PECI) ......................................................53
7.1.1
PECI Client Capabilities............................................................................54
7.1.1.1
Thermal Management ................................................................54
7.1.1.2 Platform Manageability...............................................................54
7.1.1.3 Processor Interface Tuning and Diagnostics ..................................54
7.1.2 Client Command Suite.............................................................................55
7.1.2.1
Ping() ......................................................................................55
7.1.2.2 GetDIB()..................................................................................56
7.1.2.3 GetTemp() ...............................................................................58
7.1.2.4 RdPkgConfig() ..........................................................................59
7.1.2.5 WrPkgConfig() ..........................................................................61
7.1.2.6 Package Configuration Capabilities...............................................62
7.1.2.7 Processor Thermal and Power Optimization Capabilities ..................68
7.1.3 Per Core Temperature Read .....................................................................75
7.1.4 ACPI P-T Notify Read/Write ......................................................................76
7.1.4.1
Thermally Constrained Time Read................................................76
7.1.4.2 Current Limit Read ....................................................................76
7.1.4.3 Accumulated Energy Status Read ................................................76
7.1.4.4 Power Limit for the V
CC
Power Plane Write / Read ..........................77
7.1.4.5 Package Power Limits For Multiple Turbo Modes.............................77
7.1.4.6 Socket Power Limit Performance Status Read................................78
7.1.4.7 Socket Power-Performance Scalability Read ..................................78
7.1.4.8 Socket Performance Indication Read ............................................78
7.1.4.9 RdIAMSR() ...............................................................................79
7.1.4.10 RdPCIConfig()...........................................................................82
7.1.4.11 RdPCIConfigLocal()....................................................................84
7.1.4.12 WrPCIConfigLocal() ...................................................................86
7.1.5 Client Management .................................................................................88
7.1.5.1
Power-up Sequencing ................................................................88
7.1.5.2 Device Discovery.......................................................................89
7.1.5.3 Client Addressing ......................................................................89
7.1.5.4 C-states...................................................................................90
7.1.5.5 S-states ...................................................................................90
7.1.5.6 Processor Reset ........................................................................91
7.1.5.7 Processor Error Handling ............................................................91
7.1.5.8 Originator Retry and Timeout Policy .............................................92
7.1.5.9 Enumerating PECI Client Capabilities............................................92
7.1.6 Multi-Domain Commands.........................................................................92
7.1.7 Client Responses ....................................................................................93
7.1.7.1
Abort FCS ................................................................................93