Specifications

Registers
Paper Tape Punch Status Word (PPS)
Bit
6
7
15
INT ENB
READY
ERROR
O-No Interrupt; l-Attached fo priority iflterrUFt
system. (Note: An interrupt occurs when 1NT EN8
is a 1 and either the ERROR flag or the READY flag
becomes a ‘1.)
i
Set by punch done; cleared by loading the paper
tape punch buffer (PPB).
Error Flag-Set by out-of-tape sensor: or unit power
off switch.
Paper Tape Punch Buffer (PPB)
I
1
I
I
&BIT CHARACTER DATA l
I
(5 s 7
0
Loading the buffer initiates punching.
PROCRAMMING EXAMPLE
PUNCH: BIT # 100200, PPS ; test for ready or error
BEQ PUNCH
BMI ERROR
MOV RO. PPB
RTS R
;
ERROR: (message type out)
HALT; wait for operator to fix punch
JMP PUNCH; try again when Continue is hit.
PERIPHERAL ADDRESS ASSIGNMENTS
PRS 177550
PRB 177552
PPS 177554
PPB 177556
VECTOR ADDRESSEGReader 70
Punch 74
PRIORITY LEVEL-Set to BR4. Punch is lower than reader.
MOUNTING-Electromechanical assembly-EIA Standard 19” rack, lOI/,”
vertical mounting space, by 171/2” deep.
PCll-M Controller--One small peripheral controller mounting space (l/4
of DDll or one of two such places in KAll).
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