IBM System/360 2050 Maintenance Manual page 61

Processing unit
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Scan-In
F•om
Scan-Out
Scan-
To
Test Word
To
Via Scan
Out
Approx
Micro-
Time*"'
Rog
Bits*
Woni
Bits
Loe
Bits
G•
logic
ln1n
(usec)
Comments
J
P-J
I
12-15
98
9-13
8
BH611-621
f24
15.5
Parity of J generated from AO& 8-15 and
Parity of 8-15
MD
P-3
I
16-19
9B
14-IB
B
BH611-631
F24
15.5
Parity of MO generated frorn AO& 16-23
and parity of 16-23
Byte
I
PO-Pl
Not Logged
Stats
PSW
J2,33
I
0-1
9C
24,25
D
8H6BI
FAJ
17.5
Bits 0 and
1
decoded to set ILC
32-33
0, I
=
00 ILC
=
01
0, 1
=
01 or 10 ILC
=
10
0,
1:: 11
ILC
=
11
MB
P-1
I
3-4
94
9-11
B
BH611
FM
lJ.5
Parity generated by and of mover 6-7
G2
S-J
1
5-8
9B
26-JI
B
BH641-651
f24
15.5
Parity generated
by
pority of mov.r 4-7
f
P-J
1
21-24
94
12-16
B
Brl621
FM
13.5
Parity generated by mover 4-7
PSW
J4-39
I
26-31
9C
26-Jl
D
BH681
FAJ
17 .5
J4-39
Carry
2
0, I
94
JO
D
BH6B1
FA4
13.5
Stat
Store
2
8-11
Not Logged
Prat
1 Syl
2
15, 16
9C
0
D
BH671
FAJ
17.5
Op
Not Logged
PSW
2
23-30
0-7
Stats
4-7
2
PO-P3
94
24-27
D
BH6B1
FM
13.5
4-7
L Sgn
3
0
94
2B
D
BH6Bl
FM
13.5
Stat
Mp•
3
1-13
04
4-14
J
BHJ41
GI
S-3
3
24-27
98
20-25
B
Parity generated by parity of mover 0-3
Q Reg
0
J
31
94
17
B
BH631
FA4
13 5
CPU
2
3
P1-P3
BC
26-2B
B
BH641
FAS
10.0
WFN
R Sgn
4
0
94
29
D
BH681
FM
13.5
Stat
Stan
0-J
4
PO-PJ
94
20-23
D
BH6B1
FM
13.5
0-3
BH341
BJ.
5
0-7
cc
0-8
J
1
BJ.
5
B-15
cc
9-17
J
BH341-351
Mpx
5
16•19
D4
lB-21
E
BH321
Stots
LB
P-1
5
30-JI
94
6-8
I
BH611
FA4
IJ.5
Parity generated by and of mover 6-7
LSFN
0-1
5
P2-PJ
9B
7-B
B
BH611
F24
15.5
1/0
P-1
6
30-31
94
1-J
D
BH671
FM
13.5
Parity generated by e:11clusive OR of bitt; 30-31
Reg
1/0
0-2
6
Pl-Pl
BC
29-31
B
8H651
FAS
10.0
WFN
F22
M
P0-27
7
P0-27
AB
0-31
A
IH1'1-191
28.0
2B-31
28-JI
AC
24-27
FAI
I
25.0
L
P0-27
8
P0-27
8B
0-JI
G
BHlOl-131
F20
J2.0
2B-JI
28-JI
BC
24-27
FBD
J3.5
R
P0-27
9
P0-27
80
0-JI
A
BH141-191
F21
27
.o
28-JI
28-31
a•
24-27
FAO
I
29.0
1/0
10
PO-JI
IF
F2J
H
P0-27
11
P0-27
AO
0-31
A
BH141-191
19.0
2B-JI
28-31
M
24-27
FA2
21.0
LSAR
P-5
98
0-6
B
BH601-61 I
FA4
13.5
Scanned in volue is some
a~
J
Reg
Ref etch
9C
1
D
BH671
FAJ
17.5
Set
If Bits 18-28 of AOBand IAR Match
Error
88
0-26
c
BH741-781
F26
8.0
0-3 Eq. Half Sum 4-7 Eq. Full Sum 8 Eq. Cor
Reg
9-11 Eq. LB, MB, MD 12, IJEq. Gl, G2, 14-16
Eq. U, V Mw Out 21-23 Eq. ROS
ROAR
90
6-17
H
BHBll
F25
11.S
NOTES,
1,
To .:heck if trigger maintains value for
scan-out~
2.
To check the value of a trigger before scan-out and the actual
..
Rotate T/CM switch to 5 or 10 uMc.
scan-out before tho compare and branch:
b. Trigger 1hould hold volue for at least time specified in
..
Place adchu 2CO into data keys 20-31 .
approximate rime column.
b.
Ploce Fl T control switch to repeat.
c.
If not proper, check points feeding trigger from Scopex and
c.
Depress start.
make sure of all levels.
d.
Place ROS address c:ompore 1witch ta stop.
d.
If OK che•k 2.
..
Rotate appropriate CPU roller to position thot displays
failingtrigoer.
*This column Indicates number of bits lagged out.
f.
If block indicator light is on, depress farce indicator
1wltd1,
Microinstruction is the actual ROS addre11 that causes anociot.d
g.
The value indicated now is what should
be
placed in memory.
group to be placed on icon
bu1.
h.
Ploce F4F In data keys 20-31.
i.
Depress start.
**Approximate time is the amount of time
j.
If block indicator light is on, depress force lnc:licator switch.
th.
output paint on Scopex must
k.
SOR now contoin1 the actual respon19 (obtained from
maintain the indicated value to
be
the scan-out location).
goted into the SOR successfully
(reference time
is
Fl T cycle sync
pulse).
FIGURE 36. FLT SCAN-IN, PARITY GENERATION, AND SCAN-OUT
eo
(3/71)
Model 50 FEMM

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