7 Dec
2006
7 Dec
'06
4:32 p.m.
--- Lee Davison <lee at geekdot.com> wrote:
So 10 discrete ic's. Why all the fuss then? And why
bother with the GAL at all if it only saves 4 chips?
I really have to wonder why these developers go to
all the trouble they do if that's all it takes (I
would have guessed at least 20).
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to make one of
these in discrete logic:
(if you don't feel like looking, it's an
Apple II
IDE/Cflash controller)
Just a rough chip count.
Two 8 bit buffers, two 8 bit latches and one GAL20V8
or similar.
The GAL isn't essential but saves four or more
packages to do the
address decoding.