Specifications

Registers
Teleprinter Status Word (TPS)
7 6 2
I
*
1 0 0 1
L
I-
IN-f EN6
L
MAINTENANCE
READY
CONTROL
Bit
2
MAINT Maintenance function which connects TPB serial
output to TKB serial input.
6
INT ENB O-No interrupt; 1
-attaches the Teleprinter to
the priority interrupt system at BR4.
7 READY Set by punch/printer DONE; cleared by loading
the teleprinterbuffer (TPB).
Teleprinter Buffer (TPB)
I
a-BIT CHARACTER OATA l
15
8 7 0
PRDGRAMMING EXAMPLE-To read i character from tape and echo it on
the printer:
ECHO: INC TKS ; set RDR ENB
c
TSTB TKS
; test for DONE set
BPL .-2 ; test again if not set
TSTB TPS
; test for printer READY set
BPL .-2 ; test again if not set
MOVB TKB, TPB
; put input character into’output
buffer to be printed
BR ECHO ; return for another character
PERIPHERAL ADDRESS ASSIGNMENTS
TKS 177560
TKB 177562
TPS 177564
TPB 177566
VECTOR ADDRESS
Keyboard/ Reader 60
Teleprinter/ Punch 64
PRIORITY LEVEL set to BR&Teletype printer is lower than the Teletype
key board
MOUNTING-Requires one small peripheral controller mounting s,pace (l/4
of a DDll or one of two such spaces in KAll)
HIGH-SPEED PERFORATED TAPE READER PUNCH ‘AND
CONTROL (TYPE PCll)
TAPE READER-This device senses 8-hole perforated paper or Mylar tape
photo-electrically at 300 characters per second. The reader control requests
reader movement, transfers data from the reader into the reader buffer
(PRB), and signals the computer when incoming data is present. It does this
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