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IPMI Controller: IPMI Message Protocol
10006024-04 Katana
®
752i User’s Manual
11-15
Write Setting (OEM)
The Write Setting command provides the ability to write a value to a general-purpose
input/output (GPIO) pin on the Zircon PM. By toggling certain GPIO pins, software can reset
or power-down the board.
Table11-11 shows the request/response data parameters for the
Write Setting command.
Table 11-11: Write Setting Parameters
Type: Byte: Data Field:
Request
Data
1 Bits[7:1], Device Slave Address
Bit[0], Reserved. Write as zero.
Currently defined to be zero.
2Zircon Port Number
4=GPIO
3 Device Type
192=Zircon
4 Device Type Modifier
5=Inverted Output
6=Normal Output
5Sub-Device
GPIO2=Input from PLD (spare, reserved for future use)
GPIO4=Reset to 750GL, Active Low
GPIO13=Hot-Swap Fault (Board Power), Active Low
6 Action Setting
0=De-assert output
1=Assert output
7Base Units
66=Bit setting
Response
Data
1Completion Code