Hardware/Software Interface
Page 65
Command WDOG_ARM
Command WDOG_ARM_STATE
5.4.1.3
Power Resume Mode Commands
These commands allow configuring the behavior of the G25A in case the power is
reapplied after a power failure and input voltages return to their allowed limits.
This setting is only used when the G25A is in Master mode. When the G25A is in Slave
mode, the BMC always starts the power-up sequence.
The setting is persistent, i.e. it is stored in non-volatile memory.
The default resume mode after factory programming is "On".
Table 39.
BMC API – Power resume mode commands
Table 40.
BMC API – Power resume modes
Opcode:
0x18
Packet Type:
PT_SB
Opcode:
0x19
Packet Type:
PT_RBD
Bit
7
6
5
4
3
2
1
0
Data
ARM_STATE
Bit Field
Description
ARM_STATE
Watchdog arming state
0x00
: Not armed
0x01
: Armed
0xFF
: Error
Chapter 5.4.1.12 Board Controller Mode on page 77
Command
Packet Type
Opcode
Functional Description
RESUME_MODE_SET PT_WBD
0x20
Set power resume mode
RESUME_MODE_GET PT_RBD
0x20
Get power resume mode
Resume Mode
System State at Power Loss
Resume Action
On
On
Start power-up sequence
Off
Start power-up sequence
Off
On
Stay in S4/S5 state
Off
Stay in S4/S5 state
Former
On
Start power-up sequence
Off
Stay in S4/S5 state