C-2. Memory Unit Status Register - Xerox 560 Reference Manual

Table C-2. Memory Unit Status Register
Bit Position Fau Its Detected by Memory Unit:
0-21 Fau It address snapshot
22
Reserved
23
Memory unit parity error
24
Storage module selection error
25 Address In parity error
26 Data In parity error
27 Write-lock memory storage parity error
28 Port se I ect i on error
29 Operation mode undefined
30
Control sequence check fault error
31 Multiple error
196 Appendix C