On 06/26/2018 06:05 PM, smf wrote: > http://archive.6502.org/datasheets/mos_6523_tpi_preliminary.pdf > > On 26/06/2018 15:59, Gerrit Heitsch wrote: >> On 06/26/2018 06:52 AM, vossi wrote: >>> A problem is the 6523 - Its very hard to find. >>> It is only available from mos! >> >> Anyone have a datasheet for the 6523? I still think it might be >> possible to use 2 6522 plus some extra logic to recreate the register >> map of a 6523. >> >> Gerrit >> >> > Ok, so the 6523 is just 3 direction registers and 3 data registers. That should be possible with two 6522 and some logic that adjusts the /CS and RS signals for them properly. GerritReceived on 2018-06-26 19:00:54
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