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TEST INDICATOR
•
The Test Indicator comes on when
either the Rate Switch, the Address
Com.pare Switch, the Check Control
Switch, or the ROS control switch
are not in the Process position.
•
When on, the Test light indicates
that a test is in progress.
•
The Test Indicator is located on
logic page PA 061.
LeAD INDICATOR
•
The Load Indicator comes on when the
Load Rey is pressed and turns off at
the completion of the initial pro-
gram load sequence.
•
When the Load Indicator turns off,
it means that the input device has
finished reading in the new program
and that the new PSW has been
loaded.
•
The Load Indicator is located on
logic page PA 061.
DATA AND ADDRESS ENTRY SWITCHES
•
Allow manual entry of data and
addresses to the CPU.
•
Each switch provides more than one
function.
•
Data and addresses are entered with
correct parity.
pescription
Eight rotary switches are provided for
entering manual data or addresses into
the system.
Each of these is a sixteen-
position switch which pro:vides one hexa-
decimal digit, or four bits plus parity.
Th~
first four switches, labeled A, B,
C, and D are used to set up the address
for manual operations of the core stor-
age, or to set up a compare address.
The switches labeled F, G, H, and J are
used to set up an Instruction Address, a
ROS Address, a Load Unit Address, or
manual data.
6-10
The following chart shows the switch-
es used to perform the various
functions.
r------------T--------,
I
I
Switches
I
I
fUnctions
I
Used
I
.-------------------+-----------~
I
Compare ROAR
J
I
,Stop Address
IA,B,C,D
I
r---·
----.-------+--------~
I
Compare ROAR
I
I
,Restart Address
IA,B,C,D
I
r-----~---
-
----+-----------~
,Compare SAR
I
I
IRestart Address
IA,B,C,D
I
.--------------------+-----------~
I Compare SAR
I
I
Istop Address
IA,B,C,D
I
.--------.....,..------+---------~
JHanual Display
I
I
lor Store Address
lA, B, C, D I
.-------------------t-----------~
I
Instruction Address IF,G,H,J
,
•
-.---------------+----------~
IROS Address
IF,G,H,J
I
.-------------------t-·
----~
ILoad Unit Address
I
I
I
(IPL)
I
G, H,
J
I
.---------------t--------~
,Store Data
IB,J
I
_~
__
~_-------~-~---
__ ------J
DISPLAY STORAGE SELECTION
•
•
•
Two concentric switches at one loca-
tion.
Inner switch has 3 positions; outer
switch has 16 positions.
Define register or storage area to
be addressed on a display Or store
operatioJ'l.
DESCRIPTION
The Display/Storage Selection switch
(switch E) provides a means of selecting
a register or one location of main stor-
age or auxiliary storage, in order to
display or store information.
Selection
is made according to the following
table.
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