16 Jun
2008
16 Jun
'08
7:16 p.m.
Roy J. Tellason wrote:
I'm not familiar with many 6800 designs, but I
was somewhat surprised to see
how limited some parts are, like the 8085 in the "8085 Cookbook" where you
could really get away with very little. OTOH, the c64 doesn't use any
buffering _at all_ and yet the CPU in there seems to have little trouble
driving 3 ROM chips, a set of 8 4164s, plus all the peripherals. I'm
guessing that the Z80 is probably somewhere in between, and that the
datasheet probalby won't give me the whole story anyhow.
I think the PADS PCB demo program has Z80 cpu controler already designed
to save you some work. I suspect there is a PCB already done on the internet
for you. I don't have time now to look as am going grocery shopping now.