Control Data Corporation CYBER 180 810 Maintenance And Parts Manual page 86

Register Bit Name Description
Processor Fault 33 UM2CPE ARV! PE bits 8-15, 40-47
Status (PFSO 80, 34 UM3CPE ARV! PE bits 16-23, 48-55
PFSl 81)
35
UM4CPE ARV! PE bits 24-31, 56-63
36 DE1201 Uncorrected memory word error
37 DE1207 Memory reject
38 DE12BC Memory tag PE
39 DE12PB Response code PE
40
DEMPO Floating point exception
Index ROM PE
41 DFlCPF AD or BD bits 0-15 PE
42 DL19PC Length determination (length
add, mark 0-7) box ROM PE
43 PR18PE AD select or BD select
44
PSlCAP
CPU shift control ROM PE or
Shifter input
45 DE1205 Uncorrected memory read error
46 DF2CPF AD or BD bits 16-31 PE
47 UNllPE MAC/AD PE DS
48 DElAHU*
Memory response timeout
49 PH14PP CYBER address conversion ROM PE
50**
PH14IP Instruction PE
51 PR18XP XBD select ROM PE
52 DF3CPF AD or BD bits 32-47 PE
53 PVlDPE BDP adder PE, BDP data ROM
PE, RJB, RKB PE
54
PH14PE Immediate select ROM PE
55
DF4CPF AD or BD bits 48-63 PE
56 DW15PE* MAP PE
57 DW25PE*
MAP
PE
58 DW35PE*
MAP
PE
59 DW45PE*
MAP
PE
60 UXlBKH
MAP
multiple hit fault
61 Not used
62 UM19AD MAC error
63 UM29AD Control store DBE
* Part of signal name.
** Unpredictable until OP code is taken.
*** Category 1: Non-retryable errors
Category 2: Conditional retryable errors
Category 3: Retryable errors
Category ***
2
2
2
1
1
1
1
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
1
1
1
1
3
3
3
Processor
will hang
5-10 60469500 A