Re: Strange 8255 behavior

From: Francesco Messineo <*francesco.messineo_at_gmail.com*> Date: Thu, 14 Jun 2018 14:40:58 +0200 Message-ID: <CAESs-_y5f+EWYPGV30rA3KTOf9VZP78MAmJaK+xKRM0cQi0Mfg@mail.gmail.com> · francesco.messineo_at_gmail.com

On Thu, Jun 14, 2018 at 2:36 PM, Michał Pleban <lists@michau.name> wrote:
> Hello
>
> silverdr@wfmh.org.pl wrote:
>
>> I am still waiting for someone to reimplement the 6526 replacement, which probably is in higher demand...
>
> AFAIR, the 6526 will not fit in a MAX7000 or ATF1508 CPLD, it has too
> many latches.

the 1508 has 128 macrocells, the EPM7256E has 256 macrocells.
An ATF1502 can fit a 24 I/O pins with separate DDR control on each
pin, it's in the
examples of wincupl.

F