webhead Posted January 31, 2016 Share Posted January 31, 2016 hello there I have taken one of my carts apart has two chips inside anyone know what they are search for there number online but not coming up with a lot. just wondering can I unsolder and put sockets in then use some eproms to put homebrew and demos on there , as I have a programmer for all chips and eproms. I could fill the flash types I have with a demo to fill whole of the chips up . just wondered if anyone has any info on what exactly is in there . as theres two chips I take it half goes on one then another half goes on the other to make a full program game demo whatever cheers. Quote Link to comment Share on other sites More sharing options...
pimpmaul69 Posted January 31, 2016 Share Posted January 31, 2016 hello there I have taken one of my carts apart has two chips inside anyone know what they are search for there number online but not coming up with a lot. just wondering can I unsolder and put sockets in then use some eproms to put homebrew and demos on there , as I have a programmer for all chips and eproms. I could fill the flash types I have with a demo to fill whole of the chips up . just wondered if anyone has any info on what exactly is in there . as theres two chips I take it half goes on one then another half goes on the other to make a full program game demo whatever cheers. intellivision games arent like other system carts. You cant just swap out the eproms. You have to replace the boards. There are 3 people making boards for the intellivision. Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted January 31, 2016 Share Posted January 31, 2016 They are custom ASICs and not off the shelf parts. You'll need to make the equivalent of a T-cart for your own home use. The Intellivision has a much more complex bus than is brothers of the day (its address/data multiplexed with several states). 1 Quote Link to comment Share on other sites More sharing options...
webhead Posted January 31, 2016 Author Share Posted January 31, 2016 really what asics are they then , can I have some info please cheers. Quote Link to comment Share on other sites More sharing options...
GroovyBee Posted January 31, 2016 Share Posted January 31, 2016 really what asics are they then , can I have some info please cheers. Custom ones with the address/data demultiplexer and state machine handling all built in. Quote Link to comment Share on other sites More sharing options...
mr_me Posted January 31, 2016 Share Posted January 31, 2016 hello there I have taken one of my carts apart has two chips inside anyone know what they are search for there number online but not coming up with a lot. just wondering can I unsolder and put sockets in then use some eproms to put homebrew and demos on there , as I have a programmer for all chips and eproms. I could fill the flash types I have with a demo to fill whole of the chips up . just wondered if anyone has any info on what exactly is in there . as theres two chips I take it half goes on one then another half goes on the other to make a full program game demo whatever cheers. My understanding is that they are 10-bit ROM chips made by General Instrument. The early games would have had 4K chips (maybe 2K chips). I don't think there were ever 10-bit eproms. The prototype cartridges (T-cards) that Mattel used with eproms had two 8-bit chips to store what one 10-bit rom chip would have. A similar chip would be General Instrument RO-3-9500 which was an early 28 pin 2K ROM chip. Quote Link to comment Share on other sites More sharing options...
mr_me Posted January 31, 2016 Share Posted January 31, 2016 Maybe its similar to this RO-3-9504. http://console5.com/wiki/RO-3-9504 Quote Link to comment Share on other sites More sharing options...
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