Gbc Software Exception (Category 21) - GE PACSystems RX7i Cpu Programmer's Reference Manual

Chapter 9. Diagnostics
9.5.19

GBC Software Exception (Category 21)

1, Incoming datagram queue full
Too many datagrams or read/write requests have been sent to the GBC.
Correction
Adjust the system to reduce the request rate to the GBC.
2, Read/write request queue full
The queue for Read/Write requests in the GBC is full. The requests may be from the Genius Bus or
from COMMREQs.
Correction
Adjust the system to reduce the request rate to the GBC.
3, Low priority mail queue from GBC to CPU full
The response to the CPU was lost.
4, Genius background message requiring CPU action received before CPU completed
initialization
Message was ignored.
5, GBC software version too old
Correction
Update GBC firmware.
6, Excessive use of internal GBC memory
Correction
Verify COMMREQ usage.
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