Difference between pages "Atari 7800 Hardware" and "Atari 2600 Hardware"

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(adding processor info)
 
m (→‎Atari 2600)
 
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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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== [[Atari 2600]] ==
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{| class="mw-collapsible mw-collapsed wikitable" style="width: 500px;"
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Board label: ''C015519 Rev. 12''
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! colspan=4 width="250"|Cartridge Slot Pinout
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|-
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<gallery>
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! Pin # !! Function
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VCS14.jpeg
 +
VCS12.jpeg
 +
VCS11.jpeg
 +
VCS10.jpeg
 +
VCS8.jpeg
 +
VCS7.jpeg
 +
VCS6.jpeg
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VCS4.jpeg
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VCS1.jpeg
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</gallery>
 +
 
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== [[Atari 2600|Atari 2600 Jr.]] ==
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[[File:2600jr_board_top.jpg|thumb|Top of motherboard]]
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[[File:2600jr_board_bottom.jpg|thumb|Bottom of board]]
 +
 
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{| border="4"
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|+Board label: ''C021503 Rev D''
 
|-
 
|-
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| 1 || Read/Write (Write=LOW)
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| A# || Brand || Name || Description || Documentation
 
|-
 
|-
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| 2 || HALT
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| A1 || ? || UM6532 || PIA (RAM, timers, I/O) || <center>-</center>
 
|-
 
|-
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| 3 || D3
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| A2 || ? || UM6507 || 6507 Processor. Variant of the 6502. || <center>-</center>
 
|-
 
|-
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| 4 || D4
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| A3 || ? || C010444 || TIA (Video and sound) || <center>-</center>
 
|-
 
|-
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| 5 || D5
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| A4 || ? || CD405OBE || ? || <center>-</center>
 
|-
 
|-
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| 6 || D6
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| A5 || ? || 3086PC || ? || <center>-</center>
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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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Sources:
+
[[Category:Hardware]]
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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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==Processor==
 
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The Atari 7800's processor is a variation of the 6502 named ''Sally''.
 
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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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===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)
 
−
Atari-7800-CAO25233-002-revA-board-bottom.jpg|CAO25233-002 REV A (bottom)
 
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</gallery>
 

Revision as of 07:48, 6 July 2021

Atari 2600

Board label: C015519 Rev. 12

  • VCS14.jpeg
  • VCS12.jpeg
  • VCS11.jpeg
  • VCS10.jpeg
  • VCS8.jpeg
  • VCS7.jpeg
  • VCS6.jpeg
  • VCS4.jpeg
  • VCS1.jpeg

Atari 2600 Jr.

Top of motherboard
Bottom of board
Board label: C021503 Rev D
A# Brand Name Description Documentation
A1 ? UM6532 PIA (RAM, timers, I/O)
-
A2 ? UM6507 6507 Processor. Variant of the 6502.
-
A3 ? C010444 TIA (Video and sound)
-
A4 ? CD405OBE ?
-
A5 ? 3086PC ?
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