user manual

IPMI Controller: IPMI Message Protocol
10006024-04 Katana
®
752i User’s Manual
11-17
Set Heartbeat (OEM)
The Set Heartbeat command configures the Zircon PM to send a heartbeat message to a
receiver on the IPMB or private I
2
C bus at a specific interval. The interval can range between
100 milliseconds and 25.6 seconds. The heartbeat message data may be a string of bytes or
a command that gets processed at each interval.
Table 11-13 shows the request/response
data parameters for the Set Heartbeat command.
Table 11-13: Set Heartbeat Parameters
Type: Byte: Data Field:
Request
Data
1Bus ID
Bits[7:4, Reserved
Bits[3:1], Bus ID, zero-based
000=Public IPMB
001=Private IIC Bus #1, Private IPMB
111=Private IIC Bus #2
Bit[0], Bus Type
0=Public (IPMB)
1=Private Bus
2 Bits[7:1], Slave Address of Recipient
Bit[0], Reserved. Write as zero.
3Send Interval
The interval in 100-millisecond counts between heartbeat
transmissions. Writing zero disables the heartbeat.
4 Command/Data
0=Following is a command to be processed. Its reply data is to be
sent for the heartbeat data.
1=Following is constant data to be sent for the heartbeat data.
5:N Command or Constant Data
If the data is a command to be processed, this field must contain a
properly formatted IPMB message, minus the first byte
containing the slave address.
Response
Data
1Completion Code