Table of Contents
Advertisement
1100
Unassigned
Dial out (DILOUT)
1101
0
Diag 1
1
Diag 2
2
Direct pres ept (DPR)
3
Call request (CRQ)
4
Dial digit NBR8
5
Dial digit NBR4
6
Dial digit NBR2
7
Dial digit NBR1
1110
Unassigned
Line Address out CLAOUT)
1111
0
LAOUT tit 0
1
I.AOUT bit 1
2
IAOUT tit 2
3
LAOUT bit
3
4
IACU'I tit
4
5
6
7
External Field Definitions, 2540 Reader
Mode (,EXT
TO
CPU)
0000
Unassigned
0001
Unassigned
Storage Protect 0
0010
0
STPO bit
1
STPO bit
2
STPO bit
3
STPO bit
4
STPO bit
5
STPO bit
6
STPO bit
7
STPO bit
Stora9e Protect
1
0011
0
STP1 bit
1
STP1 bit
2
STP1 bit
3
STP1 bit
4
STP1 bit
5
STP1 bit
6
STP1 bit
7
STP1 bit
1-58
(7/69)
(S'IPO)
0 (QO)
1 (Ql)
2
(Q2)
3 (Q3)
4 (Q4)
5
(Q5)
6 (Q6)
7 (Q7)
(STP1)
0
1
2
3
4
5
6
7
Dynamic Condition Register CDYN)
0100* 0
1
2
3
4
5
6
7
Z=O
Storage wrap latch
CVFL (overflow>
Adder carry
Not hold
in
(Dir ctl Feat)
Check disable switch
DYN Reg bit 6 CHZ=O)
DYN Reg bit 7 (LZ=O)
Status Register (S >
0101* 0
1
2
3
4
5
6
7
SO True/comp! latch
Sl Z=nonzero (all arith ops>'
S2 Z=nonzero Clog, dee,
&
bin ops)
S3 ALU 0-bit carry
S4 Invalid decirr-al digit
SS (general purpose>
S6 Not execute
S7 Not exceptional condition
~MSK
Register. Bits 0-7 (MMSK)
0110* 0
1
2
3
4
5
6
7
MMSKO Channel high trap
MMSK1 2311 disk control trap
MMSK2 Channel low trap
MMSK3 2540 reader trap
M~SK4
2540 punch trap
MMSK5 Comr: chnl bit service
MMSK6 Comm chnl char service
M~SK7
Level 1 priority hold
Branch Conditions (BA)
0111* 0
Chnl
0
interruption latch
1
Mode bit
0
2
Mode bit
1
3
Mode bit 2
4
IPL latch
5
LS zone bit 0
6
IS zone tit
1
7
LS zone bit 2
Diagnostic R/P Conditions
1
(RPD1)
MOM
4-43
1000
0
R/P tens
AR
A
1
R/P tens AR B
2
R/P tens
AR
C
3
R/P tens AR D
4
R/P tens
AR
E
5
Punch address check
6
Punch overrun latch
7
Punch sync check latch
Advertisement
Table of Contents
