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•
•
•
Controls are on IBM 2030 control
panel (Figure 6-1).
2030 panel is divided functionally
into seven sections.
2030 panel allows display and alter-
ation of data, and control and sta-
tus information.
UPPER INDICATOR PANEL (FIGURE 6-2)
READ ONLY STORAGE DISPLAY
•
•
Display consists of fifteen bits of
address and fifty-four output bits.
When the system stops, the displayed
address is normally the address of
the displayed control word.
Description
Whenever the system stops, the displayed
address is the address of the displayed
control word, except when the address-
REAO ONLY STORAGE
CN
,
ADDR
,
,
W REGISTER
P
I
0
,
2
3
4
5
I
P
I
lP
I
~
I
~
I
!
4
2
,
5
6
7
AI
CH
,
Cl
,
CA
,
CB
pi
0
I
2
3
I
0
I
2
3
I
A
0
,
2
3
I
0
,
CR'
CD
,
,
F
,
CG
pi
0
,
2
3
I
I
0
,
2
I
0
,
C
UNf REGISTER
~
I
,
4
2
; I
,
,
2
~
I
~
I
~
4
2
0
,
2
,
5
6
,
2
HANNEl NUMBE
E
,
OAT
REGIS ER
,
KEY
I
~
I
~
4
2
i
I
,
4
2
~
I
~
I
,
4
2
,
2
4.
5
6
0
,
2
FLAGS
,
TAGS
,
CD
CC
Sll
SKIP
PC'
I
'"
".
STAT
~~RV
I
IN
IN
IN
m
AOI
CMND
"IV
'"
0"'
0",
0",
OUT
0",
Figure 6-2.
UpPer Indicator Panel
,
I
,
I
,
I
0
APPENDIX 2
compare switch is in the Early Roar Stop
position and a match occurs, or the
check control switch is in the Stop
position: and one (or more) of the
following checks occur: CTRL-REG, A-REG,
B-REG, ALU, STOR DATA, or STOR ADDR.
COUNT REGISTER DISPLAY
•
A group of eighteen indicators.
•
Allow the contents of either the GCD
or HCD register to be observed.
CHANNEL NUMBER ONE DISPLAY
•
A group of indicators provided to
observe Selector Channel One opera-
tion.
DATA REGISTER
•
~
I
~
CM
,
2
A display of the channel data reg-
ister for channel one.
X REGISTER
4
2
~
I 4
4
2
,
,
2
5
6
7
,
C
,
CK
I
0
,
I A P l o l 2 3
cv
,
C
,
5
0
,
I
0
,
2
I
A 0
,
2
3
~
I :
,
2
,
5
6
7
,
COMMAND
,
, I'
,
2
;j
3
4
5
6
HECKS
Il
PRaG
PROT
CHNL
CHNL
'NT
DATA
CTRl
fACE
6-5
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