Kontron AM4901 IPMI - Manual (Page 63)

AM5901/AM4901 IPMI Firmware User Guide
ID: 1035-8760, Rev. 3.0 Page 63
8.1.2 Master Write-Read Command
The IPMI Master Write-Read command normally supports access to IPMB busses/channels
only in board test mode. To switch on the board test mode please refer to IPMI command
'Manufacturing Test On Command'.
In the table below, only the Kontron extension/modification of the standard command is provid-
ed. Refer to the IPMI specification for the complete description of the command.
COMMAND LUN NetFn CMD
Master Read-Write Command 00h App = 06h 52h
REQUEST DATA
Byte Data Field
1 Bus ID is composed as follows:
[7:4] = 0 = for bus with carrier’s EEPROM
= 1 = for bus with FRU/NVParams etc. EEPROM etc.
= 2 = for bus with Temperature sensors etc.
= 3 = for Inter MCH IPMB bus
= 4 = for IPMB-L
= 5 = for IPMB-A
= 6 = for IPMB-B
[3:1] = 1 = bus ID
[0] = 1 = bus type
RESPONSE DATA
Byte Data Field
1 Completion code