Intel C2518 FH8065501516710 データシート
製品コード
FH8065501516710
Volume 2—SMBus 2.0 Unit 2 - PECI—C2000 Product Family
PECI Proxy Commands
Intel
®
Atom™ Processor C2000 Product Family for Microserver
Datasheet, Vol. 2 of 3
September 2014
406
Order Number: 330061-002US
Table 17-21. RdEndPointConfig() PECI Proxy Block Read
SMBus
Function
Value
Data
Source
Comment
Slave
Address
(Command
Phase)
Write Address
SMBus
Command
0x4B
BMC
SMBus Read
Command
Code
SMBus Read
Code
0x40
Slave
Address
(Data Phase)
Read Address
0x4B
Byte Count
N
Control Data
{0x1,
0x02,
0x04,
0x05,
0x02,
0x04,
0x05,
0x07}
SoC
N = 0x01 for Busy state
• Byte 1 = 0x01
N= 0x02 for Transaction
Errors
• Byte 1 = 0x02
• Byte 2 =Error Code
• Byte 2 =Error Code
defined in
N={0x4,0x5,0x7} indicates
successful PECI Transaction
• Byte 1 = 0x00
• Byte 2= 0x00
• Byte[7:3] = PECI
• Byte 2= 0x00
• Byte[7:3] = PECI
Response Data
N = {0x04, 0x05, 0x07}
value is determined by the
number of PECI Response
Data bytes returned in
Byte[7:4] on the SMBus.
N Value:
N Value:
• 0x04 = 1 data byte
• 0x05 = 2 data bytes
• 0x07 = 4 data bytes
• 0x05 = 2 data bytes
• 0x07 = 4 data bytes
Byte 1
Status Byte
CMD_STAT
See Byte[1] of defined in
Byte 2
Error Byte
ERR_CODE
See Byte[2] of defined in
Byte 3
PECI Transaction
Status
PECI
Response
Data
PECI
Completion
Code
Completion Code decode:
• 0x40 = Command
successful
• 0x80 = Response time-
out
• 0x90 = Illegal command
Byte 4
Data 1 (LSB)
Data = 1, 2,
or 4 bytes
See later section.
Byte 5
Data 2
Byte 6
Data 3
Byte 7
Data 4 (MSB)