non-CP/M Z80 board

Roy J. Tellason rtellason at
Mon Jun 16 21:29:02 CDT 2008

On Monday 16 June 2008 22:16, bfranchuk at wrote:
> 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.

Guess I should've mentioned wire-wrap in there someplace too...   :-)

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