CP-M Z80 home brew computer circuit board

Randy Dawson rdawson16 at hotmail.com
Sun Jun 15 17:09:13 CDT 2008


Whatever you guys do, Ill volunteer to do the layout.

Randy

> Date: Sun, 15 Jun 2008 17:22:48 -0400
> From: rtellason at verizon.net
> To: cctalk at classiccmp.org
> Subject: Re: CP-M Z80 home brew computer circuit board
> 
> On Sunday 15 June 2008 16:43, Chuck Guzis wrote:
> > From: "Andrew Lynch"
> >
> > > Implementing floppy IO can take on many variations and picking the FDC
> > > is just the first of many challenges [FDC1793? NEC765? SMC9266?
> > > WD2797?]. What about the data separator?  Few chips remain and viable
> > > sources are scarce. Even integrated FDCs with built in data separators
> > > are not readily available.
> >
> > The WD1770/1772/1773 is still my favorite "almost no external
> > circuitry" chip, but they're getting harder to find, in spite of
> > being used on Atari and Commodore boxes.  You don't need to buffer
> > the floppy interface and the things have integrated data separators--
> > and come in a 28-pin package.
> 
> I thought it was the 179x parts that had the data separator on-chip,  no?
> 
> -- 
> 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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