Difference between revisions of "Atari 7800 Hardware"
Jump to navigation
Jump to search
(→Cartridge Slot) |
|||
Line 41: | Line 41: | ||
| 17 || A15 || - | | 17 || A15 || - | ||
|- | |- | ||
− | | 18 || External audio | + | | 18 || External audio from cart || - |
|- | |- | ||
| 19 || A7 || - | | 19 || A7 || - | ||
Line 72: | Line 72: | ||
|} | |} | ||
− | + | Sources: | |
+ | * [http://atarihq.com/danb/7800cart/a7800cart.shtml http://atarihq.com/danb/7800cart/a7800cart.shtml] | ||
+ | * [http://www.atarimax.com/jindroush.atari.org/7800cart.html http://www.atarimax.com/jindroush.atari.org/7800cart.html] | ||
==Motherboard== | ==Motherboard== |
Revision as of 03:37, 25 July 2014
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 from cart | - | |
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 | - |
Sources:
- http://atarihq.com/danb/7800cart/a7800cart.shtml
- http://www.atarimax.com/jindroush.atari.org/7800cart.html
Motherboard
A peculiarity of 7800 motherboards is that the top and bottom of the boards may have diferent revision labels.
CAO2523x
The top of this board is labeled 'CA025234' and the bottom is labeled 'CA025233-002 REV A'.