peteym5 Posted March 10, 2020 Report Share Posted March 10, 2020 We have access to 7800 Bank switching carts / boards. What I need is the specifications on these boards. Where RAM or POKEY located or which areas get swapped out during bank switching. These are 128K, 128K RAM, and 128K Pokey. Same cartridges Atari used for Winter Games and Summer Games. Justin 1 Quote Link to comment Share on other sites More sharing options...
Atari 5200 Guy Posted March 10, 2020 Report Share Posted March 10, 2020 3 hours ago, peteym5 said: We have access to 7800 Bank switching carts / boards. What I need is the specifications on these boards. Where RAM or POKEY located or which areas get swapped out during bank switching. These are 128K, 128K RAM, and 128K Pokey. Same cartridges Atari used for Winter Games and Summer Games. Also Ballblazer. Justin 1 Quote Link to comment Share on other sites More sharing options...
Atari 5200 Guy Posted March 10, 2020 Report Share Posted March 10, 2020 I have no knowledge on how those carts are accessed. I know they have RAM and I know they have a POKEY chip for additional 4 channel sound that can be combined with TIA's 2-channel sound for a total of 6 channels. I have no clue how to access them. I'll see if I can dig up the original tech docs on the 7800 on the net somewhere. Quote Link to comment Share on other sites More sharing options...
Atari 5200 Guy Posted March 10, 2020 Report Share Posted March 10, 2020 (edited) Found this so far: http://atarihq.com/danb/7800cart/C300595.shtml also try these: http://atarihq.com/danb/a7800.shtml#tech Edited March 10, 2020 by kamakazi20012 Justin 1 Quote Link to comment Share on other sites More sharing options...
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