(At the Atari)
UNKNOWN CONNECTOR at the Atari.
| Pin | Name | Description |
|---|---|---|
| 1 | R/W | Read/Write |
| 2 | HALT | Halt |
| 3 | D3 | Data 3 |
| 4 | D4 | Data 4 |
| 5 | D5 | Data 5 |
| 6 | D6 | Data 6 |
| 7 | D7 | Data 7 |
| 8 | A12 | Address 12 |
| 9 | A10 | Address 10 |
| 10 | A11 | Address 11 |
| 11 | A9 | Address 9 |
| 12 | A8 | Address 8 |
| 13 | +5V | +5 VDC |
| 14 | GND | Ground |
| 15 | A13 | Address 13 |
| 16 | A14 | Address 14 |
| 17 | A15 | Address 15 |
| 18 | EAUDIO | EAudio ??? |
| 19 | A7 | Address 7 |
| 20 | A6 | Address 6 |
| 21 | A5 | Address 5 |
| 22 | A4 | Address 4 |
| 23 | A3 | Address 3 |
| 24 | A2 | Address 2 |
| 25 | A1 | Address 1 |
| 26 | A0 | Address 0 |
| 27 | D0 | Data 0 |
| 28 | D1 | Data 1 |
| 29 | D2 | Data 2 |
| 30 | Gnd | Gnd |
| 31 | IRQ | Interrupt |
| 32 | CLK2 | Clock 2 ??? |