Artesyn ATCA-8310 Installation and Use (May 2014) - Manual (Page 236)

Intelligent Peripheral Management Controller
ATCA-8310 Installation and Use (6806800M72E) 236
7.18 FPGA Health Check
During normal operation the health of the FPGA is periodically checked by dedicated FPGA
internal logic. In the case of a CRC error the signal CONF_CRC_ERR is asserted to signal the
system, that FPGA logic may be corrupted.
Such an error is handled like a power failure.
The IPMC provides a dedicated FPGA Status sensor indicating a CONF_CRC_ERROR. The ShMM
is informed about CONF_CRC_ERROR with an event. Furthermore in this case the blade is
shutdown by the IPMC.
7.19 GPP THERMTRIP
THERMTRIP is considered as a power failure of the GPP processor.
The IPMC provides a dedicated GPP Status sensor indicating a THERMTRIP. The ShMM is
informed about THERMTRIP error with an event. Furthermore in this case the blade is
shutdown by the IPMC.
7.20 Local System Event Log (SEL)
The ATCA-8310 IPMC supports a local SEL. The local SEL size is configured to hold 1K entries in
a circular FIFO buffer. Once the circular buffer is full, the next SEL entry will overwrite the oldest
SEL entry in the buffer. All events are automatically logged locally to the local SEL before being
passed to the Shelf's SEL, this includes all events that occur from the local MMC.
To support the local SEL, a software emulated RTC (Real Time Clock) is enabled which upon
startup will request the local time from the shelf manager by sending an IPMI standard
command "Get SEL Time". Once the initial time is received, the IPMC maintains the time locally
and no further synchronization is performed with the shelf manager.
7.21 IPMI Hardware Watchdog
For crisis recovery purpose the IPMI building block provides a hardware watchdog. The IPMI
firmware will be reset if it cannot trigger the watchdog anymore.