Emerson 752I User Manual
IPMI Controller:
IPMI Message Protocol
11-21
Event-generating sensors with a Threshold Event/Reading Type (0x01) initiate an event
message when a sensor reading crosses the defined threshold. The default thresholds for a
particular sensor are retrieved by sending the Zircon PM a Get Sensor Thresholds com-
mand. The system management controller must send the Zircon PM a Get Sensor Reading
command to retrieve the current sensor reading. (See the IPMI specification listed in
message when a sensor reading crosses the defined threshold. The default thresholds for a
particular sensor are retrieved by sending the Zircon PM a Get Sensor Thresholds com-
mand. The system management controller must send the Zircon PM a Get Sensor Reading
command to retrieve the current sensor reading. (See the IPMI specification listed in
for further details regarding these commands.)
ProcWatchdog is a Watchdog 2 Type (0x23) sensor. It generates an event when the
750GL1_WD_LATCH signal (see
750GL1_WD_LATCH signal (see
) for a particular sensor is asserted. A timeout in
the watchdog mechanism of the Marvell system controller asserts this signal. An associated
de-assertion event occurs when the system software on the Katana
de-assertion event occurs when the system software on the Katana
and the 750GL1_WD_LATCH signal has been cleared.
On the Katana
752i, sensor number 0x70 is a System Firmware Progress sensor. This type
of sensor (0x0F) generates events to communicate Power On Self-Test (POST) and boot
failures.
failures.
shows the OEM values defined for the data associated with this type of
sensor.
Table 11-18:
System Firmware Progress OEM Event Data
7
Sensor Type
Indicates event class or type of sensor that generated the
message
message
8
Sensor Number
A unique number indicating the sensor that generated the
message
message
9
Event Dir /
Event Type
Event Type
Upper bit indicates direction (0 = Assert, 1 = Deassert); Lower 7 bits
indicate type of threshold crossing or state transition
indicate type of threshold crossing or state transition
10
Event Data 0
Data for sensor and event type
11
Event Data 1
(Optional) Data for sensor and event type
12
Event Data 2
(Optional) Data for sensor and event type
13
Chk2
Checksum #2
1. Each byte has eight bits.
Description:
Event Data 0
(Byte 10):
(Byte 10):
Event Data 1
(Byte 11):
(Byte 11):
Event Data 2
(Byte 12):
(Byte 12):
Memory POST failed
0xA0
(10100000
(10100000
2
)
0x01
(00000001
(00000001
2
)
0xFF
(11111111
(11111111
2
)
I2C POST failed
0xA0
(10100000
(10100000
2
)
0x40
(01000000
(01000000
2
)
0xF0
(11110000
(11110000
2
)
Flash POST failed
0xA0
(10100000
(10100000
2
)
0x50
(01010000
(01010000
2
)
0xF0
(11110000
(11110000
2
)
PCI Enumerated w/o EREADY
0xA0
(10100000
(10100000
2
)
0xFE
(11111110
(11111110
2
)
0x01
(00000001
(00000001
2
)
Byte:
1
Field:
Description:
(continued)