non-CP/M Z80 board

Roy J. Tellason rtellason at verizon.net
Mon Jun 16 21:01:49 CDT 2008


On Monday 16 June 2008 21:40, David Kane wrote:
> Fanout is one reason, or to interface between fabrication technologies or
> differing supply potentials.
>
> David

I don't anticipate any difference in supply potentials,  and was hoping to 
avoid digging through the datasheets worrying about fanout,  if perhaps some 
of the BTDT folks in here would know offhand.  :-)

> On Tue, Jun 17, 2008 at 11:01 AM, Roy J. Tellason <rtellason at verizon.net>
>
> wrote:
> > I'm thinking about building a z80 board,  with varying amounts of "stuff"
> > attached,  with RAM and ROM that may be NMOS or CMOS,  and some
> > indeterminate
> > number of Z80-family and compatible peripheral chips.
> >
> > My question is this:  At what point do you _need_ to have address and
> > data bus
> > buffer chips?
> >
> > --
> > Member of the toughest, meanest, deadliest, most unrelenting -- and
> > ablest -- form of life in this section of space,  a critter that can
> > be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
> > -
> > Information is more dangerous than cannon to a society ruled by lies.
> > --James
> > M Dakin

-- 
Member of the toughest, meanest, deadliest, most unrelenting -- and
ablest -- form of life in this section of space,  a critter that can
be killed but can't be tamed.  --Robert A. Heinlein, "The Puppet Masters"
-
Information is more dangerous than cannon to a society ruled by lies. --James 
M Dakin




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