From Game Tech Wiki
(Difference between pages)
Jump to navigation
Jump to search
|
|
Line 1: |
Line 1: |
− | This page is used to document details of the hardware for the [[Atari 7800]].
| |
| | | |
− | ==Cartridge Slot==
| |
− | {| class="mw-collapsible mw-collapsed wikitable" style="width: 500px;"
| |
− | ! colspan=4 width="250"|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 || -
| |
− | |}
| |
− |
| |
− | ==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'.
| |
− | <gallery>
| |
− | Atari-7800-CAO25234-board-top.jpg|CAO25234 (top)
| |
− | Atari-7800-CAO25233-002-revA-board-bottom.jpg|CAO25233-002 REV A (bottom)
| |
− | </gallery>
| |
Latest revision as of 07:48, 6 July 2021