Hardware/Software Interface
Page 69
5.4.1.6
External Power Supply Control
In Master mode, the BMC uses the EXT_PS_ON signal to switch the external power
supply on and off. In Slave mode, the BMC does not control the EXT_PS_ON signal.
Table 43.
BMC API – External power supply control commands
Commands EXT_PS_ON_MODE_SET and EXT_PS_ON_MODE_GET
Command EXT_PS_ON_MODE_SET
Command EXT_PS_ON_MODE_GET
Command
Packet Type
Opcode
Functional Description
EXT_PS_ON_MODE_SET PT_WBD
0x23
Set
EXT_PS_ON
mode
EXT_PS_ON_MODE_GET PT_RBD
0x23
Get
EXT_PS_ON
mode
Opcode:
0x23
Packet Type:
PT_WBD
Bit
7
6
5
4
3
2
1
0
Data
EXT_PS_ON_MODE
Opcode:
0x23
Packet Type:
PT_RBD
Bit
7
6
5
4
3
2
1
0
Data
EXT_PS_ON_MODE
EXT_PS_ON_MODE
External power supply on/off mode
0x00
: Invalid
0x01
: Always
0x02
: Switched
0xFF
: Error