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| − | This page is used to document details of the hardware for the [[Atari 7800]].
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| − | ==Cartridge Slot==
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| − | {| class="mw-collapsible mw-collapsed wikitable" style="width: 500px;"
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| − | ! colspan=4 width="250"|Cartridge Slot Pinout
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| − | |-
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| − | ! Pin # !! Function
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| − | |-
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| − | | 1 || Read/Write (Write=LOW)
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| − | |-
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| − | | 2 || HALT
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| − | |-
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| − | | 3 || D3
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| − | |-
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| − | | 4 || D4
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| − | |-
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| − | | 5 || D5
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| − | |-
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| − | | 6 || D6
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| − | |-
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| − | | 7 || D7
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| − | |-
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| − | | 8 || A12
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| − | |-
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| − | | 9 || A10
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| − | |-
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| − | | 10 || A11
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| − | |-
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| − | | 11 || A9
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| − | |-
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| − | | 12 || A8
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| − | |-
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| − | | 13 || +5 VDC
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| − | |-
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| − | | 14 || Ground
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| − | |-
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| − | | 15 || A13
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| − | |-
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| − | | 16 || A14
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| − | |-
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| − | | 17 || A15
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| − | |-
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| − | | 18 || External audio from cart
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| − | |-
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| − | | 19 || A7
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| − | |-
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| − | | 20 || A6
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| − | |-
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| − | | 21 || A5
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| − | |-
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| − | | 22 || A4
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| − | |-
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| − | | 23 || A3
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| − | |-
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| − | | 24 || A2
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| − | |-
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| − | | 25 || A1
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| − | |-
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| − | | 26 || A0
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| − | |-
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| − | | 27 || D0
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| − | |-
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| − | | 28 || D1
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| − | |-
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| − | | 29 || D2
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| − | |-
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| − | | 30 || Ground
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| − | |-
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| − | | 31 || IRQ
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| − | |-
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| − | | 32 || Phase 2 clock
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| − | |}
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| − |
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| − | Sources:
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| − | * [http://atarihq.com/danb/7800cart/a7800cart.shtml http://atarihq.com/danb/7800cart/a7800cart.shtml]
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| − | * [http://www.atarimax.com/jindroush.atari.org/7800cart.html http://www.atarimax.com/jindroush.atari.org/7800cart.html]
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| − |
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| − | ==Processor==
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| − | The Atari 7800's processor is a variation of the 6502 named ''Sally''.
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| − |
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| − | ==Motherboard==
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| − | A peculiarity of 7800 motherboards is that the top and bottom of the boards may have diferent revision labels.
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| − |
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| − | ===CAO2523x===
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| − | The top of this board is labeled 'CA025234' and the bottom is labeled 'CA025233-002 REV A'.
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| − | <gallery>
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| − | Atari-7800-CAO25234-board-top.jpg|CAO25234 (top)
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| − | Atari-7800-CAO25233-002-revA-board-bottom.jpg|CAO25233-002 REV A (bottom)
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| − | </gallery>
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Latest revision as of 07:48, 6 July 2021
