Xeon-Phi-Coprocessor-Datasheet

6.6.3.6 General Commands
Table 6-7.
General Command Details
NetFn Command Name
Intel
(0x2e)
Intel
(0x2e)
Intel
General
App
(0x30)
0x42
0x43
0x15
CPU Package Config Read
CPU Package Config Write
Set SM Signal
6.6.3.6.1 CPU Package Configuration Read
The CPU Package Config Read command reads power control data. For the parameter
byte formats, refer to the Intel ® Xeon TM Processor Family External Design Specification
(EDS) Volume 1.
Table 6-8.
CPU Package Config Read Request Format
Byte # Value Description
Command 0x42 • CPU Package Config Read
NetFn 0x2e • NETFN_INTEL
0-2 • Manufacturer ID (LSB format): 0x57, 0x01, 0x00
3 0x00 • CPU Number
4 0x?? • PCS Index
• 3 - Accumulated Energy Status
• 11 - Socket Power Throttle Duration
• 26 - Package Power Throttle Threshold Value 1 (PL1)
• 27 - Package Power Throttle Threshold Value 2 (PL0)
• 28 - Package Power SKU A
• 29 - Package Power SKU B
• 30 - Package Power SKU Unit
• All other values reserved
5 0x00 • Parameter LSB
6 0x00 • Parameter MSB
7 0x?? • Number of Bytes to Read
Table 6-9.
CPU Package Config Read Response Format
Byte # Value Description
0 0x?? • Compcode
• 0x00 - Normal
• 0xcc - Invalid field
• 0xa1 - Wrong CPU Number
• 0xa7 - Wrong Read Length
• 0xab - Wrong Command Code
• 0xff - Unspecified Error
1-3 • Manufacturer ID (LSB format): 0x57, 0x01, 0x00
4[-7] 0x?? • Data bytes read, up to 4 bytes
Document ID Number: 328209 003EN
Intel ® Xeon Phi Coprocessor Datasheet
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