Atari 7800 Hardware
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This page is used to document details of the hardware for the Atari 7800.
Cartridge Slot
Cartridge Slot Pinout | |||
---|---|---|---|
Pin # | Function | Other notes | |
1 | Read/Write (Write=LOW) | - | |
2 | HALT | - | |
3 | D3 | - | |
4 | D4 | - | |
5 | D5 | - | |
6 | D6 | - | |
7 | D7 | - | |
8 | A12 | - | |
9 | A10 | - | |
10 | A11 | - | |
11 | A9 | - | |
12 | A8 | - | |
13 | +5 VDC | - | |
14 | Ground | - | |
15 | A13 | - | |
16 | A14 | - | |
17 | A15 | - | |
18 | External audio to system | - | |
19 | A7 | - | |
20 | A6 | - | |
21 | A5 | - | |
22 | A4 | - | |
23 | A3 | - | |
24 | A2 | - | |
25 | A1 | - | |
26 | A0 | - | |
27 | D0 | - | |
28 | D1 | - | |
29 | D2 | - | |
30 | Ground | - | |
31 | IRQ | - | |
32 | Phase 2 clock | - |