IPMI Controller: IPMI Message Protocol
Katana®752i User’s Manual 10006024-04
11-16
Read Setting (OEM)The Read Setting command provides the ability to read the value of a general-purpose
input/output (GPIO) pin on the Zircon PM. Software can read certain GPIO pins to deter-
mine if the board is in reset or powered-down. Table11-12 shows the request/response data
parameters for the Read Setting command.
Table 11-12: Read 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
3=Inverted Input
4=Normal Input
5Sub-Device
GPIO8=750GL System Firmware Error, Active High
GPIO11=750GL Watchdog Time-out, Active High
GPIO12=Input from 750GL
GPIO13=Hot-Swap Fault (Board Power), Active Low
GPIO15:19=Geographical Address 4 to 0, Active High
Response
Data
1Completion Code
2 Action Setting
0=Input is de-asserted
1=Input is asserted
3Base Units
66=Bit setting