iAPX 432 Interface Processor Architecture Reference Manual
6-2. FAULT HANDLING
When an IP process encounters a process-level fault, it is autanatically sent to a 432 fault port to await service. A fault handling 432 process is designated to service the faulted processes waiting at the fault port. By design, IPs and GOPs share a cormnon base architecture, so IP faults may often be handled by software similar to that used to service GOP faults. In cases where unique IP attention is required, a special fault fJOrt must be constructed to which faul ted IP processes may be selectively re-sent and then serviced by AP and/or GOP software.
