UNKNOWN CONNECTOR at the Atari. | Pin | Name | | 1 | D0 | | 2 | D1 | | 3 | D2 | | 4 | D3 | | 5 | D4 | | 6 | D5 | | 7 | D6 | | 8 | D7 | | 9 | Enable 80-8F | | 10 | Enable 40-7F | | 11 | Not Connected | | 12 | Ground | | 13 | Ground | | 14 | Ground (System Clock 02 on 2 port) | | 15 | A6 | | 16 | A5 | | 17 | A2 | | 18 | Interlock | | 19 | A0 | | 20 | A1 | | 21 | A3 | | 22 | A4 | | 23 | Ground | | 24 | Ground (Video In on 2 port) | | 25 | Ground | | 26 | +5 VDC | | 27 | A7 | | 28 | Not Connected | | 29 | A8 | | 30 | Audio In (2 port) | | 31 | A9 | | 32 | A13 | | 33 | A10 | | 34 | A12 | | 35 | A11 | | 36 | Interlock |
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