Continuing trying to restart my electronics obsession. Actually have an Adruino development system going & will set up an Atari 8 bit this week. So while perusing data sheets and what not I found this http://www.vlsi.fi/e...s/vs23s010.html& exercised my PalPal account to buy 10. If anyone reading this has the inclination to do some hardware hacking like DMSC , Michael, Bob, or Flash wants one, probably at least 5 are spares that I will never use. I'll lick a stamp and send you one gratis. Makes more sense to give them away then let them corrode on a shelf for a decade or two. I couldn't resist the price break at 10 items.
I already have designs and software, mostly from other peoples work. SPI should be near right bit banging on the Atari PIA and parallel 8 bit mode should just require a single chip for separate R W lines the device needs. On talking with the VLSI developers, chip will need to be bit banged SPI to set up mode i.e. 640X480 at which time you can continue using SPI or switch to using it as 8 bit NAND type memory for reads and writes. Something like 131k of 8 bit NAND memory available that can be used for display or storage.
Edited by ricortes, Mon Mar 11, 2019 1:56 PM.