Datasheet

Document ID Number: 328209 003EN Intel
®
Xeon Phi™ Coprocessor Datasheet
71
6.6.3.6 General Commands
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 6-7. General Command Details
NetFn Command Name
Intel
(0x2e)
0x42 CPU Package Config Read
Intel
(0x2e)
0x43 CPU Package Config Write
Intel
General
App
(0x30)
0x15 Set SM Signal
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
30x00•CPU Number
40x??•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
50x00•Parameter LSB
60x00•Parameter MSB
7 0x?? • Number of Bytes to Read
Table 6-9. CPU Package Config Read Response Format
Byte # Value Description
00x??•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