Atari Connection Machine
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Atari ST family connectors pinouts

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Atari ST ROM port

40 pin slot female at computer side

40 pin slot female at computer side
1 +5V
2 +5V
3 D 14
4 D 15
5 D 12
6 D 13
7 D 10
8 D 11
9 D 8
10 D 9
11 D 6
12 D 7
13 D 4
14 D 5
15 D 2
16 D 3
17 D 0
18 D 1

19
A 13

20
A 15

21 A 8
22 A 14
23 A 7
24 A 9
25 A 6
26 A 10
27 A 5
28 A 12
29 A 11
30 A 4
31 /ROM Select 3
32 A 3
33 /ROM Select 4
34 A 3
35 /UDS
36 A 1
37 /LDS
38
GND

39
GND

40
GND

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