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Commodore PET Parallel User Port

24 PIN UNKNOWN CONNECTOR

                                 1  1  1
      1  2  3  4  5  6  7  8  9  0  1  2
      =  =  =  =  =  =  =  =  =  =  =  =
     ### ######################### ######
      =  =  =  =  =  =  =  =  =  =  =  =
      A  B  C  D  E  F  H  J  K  L  M  N
Pin Name
1 System Ground
2 TV Video
3 IEEE-SRQ
4 IEEE-EOI
5 Diagnostic Sense
6 Cass.1 Read
7 Cass.2 Read
8 Diag Tape Wrt.
9 TV Vertical
10 TV Horizontal
11 GND
12 GND
A GND
B CA1
C PB0
D PB1
E PB2
F PB3
H PB4
J PB5
K PB6
L PB7
M PA2 (CB2)
N GND

Contributor: Joakim Ögren

Source:
Commodore PET FAQ

Copyright © The Hardware Book Team 1996-2001.
May be copied and redistributed, partially or in whole, as appropriate.
Document last modified: 2000-07-07