Date   : Thu, 16 Apr 2009 12:24:04 +0200
From   : kortink@... (John Kortink)
Subject: ReCo6502 now available

On Thu, 16 Apr 2009 08:50:16 +0100, Sprow <info@...> wrote:

>[...]
>
>You've all already mentioned the main points
> * CPLDs don't have enough register bits versus going to 200+ pin packages

Altera's Max II CPLDs could do, e.g. 570 cells (which I
suppose is enough), available in a 100-pin flatpack. But
only 3.3V tolerance, so needs level translators for most
I/O.

>[...]
>
>It would be technically possible to pop the FPGA and configuration PROM onto
>a 40 pin DIL carrier board, I'd stab at ~?35 to make them which suggests
>John's idea of just swapping the chip out of an existing board (since you
>can't use two at once anyway!) makes best sense,

There are many copros that could make use of the same
ULA replacement, ReCo6502 included. Which was an
additional reason not to attempt integration of
a ULA remake in ReCo6502 at this stage, and thereby
sort of re-invent the wheel before its invention.


John Kortink

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