The AVG needs RAM for a 16x4 hardware stack. That's why I can't get it to
fit in a decent sized CPLD. There's essentially 64 macrocells for RAM, and
by the time you get to a 128 macrocell device to fit the rest of the logic
in there (a bunch of counters that form the program counter and stack
pointer) the single-chip solution is costing more than the sum of the TTL
(by a long shot). :-/
-Clay
> ----------
> I'm just curious, why do you need memory on the pcb? I have a schematic
> for
> a replacement board (I think from Tempest or something) that shows only
> TTL
> on it.
>
>
Received on Tue Jun 8 10:33:31 1999
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