[Coco] CoCo Crew Podcast #4

[John W. Linville]

6822 instead of 6821?  I think that has to do with the electrical
characteristics of the I/O pins, but I'm not sure of the exact details.

Potential answer here:

	http://www.praxibetel.org/toro/toro.html

"The MC6822 is an open-drain version of the MC6821, and can sink up
to 10mA per pin (subject to power dissipation limits)."

YMMV, of course...

John

On Thu, Oct 01, 2015 at 02:50:05PM -0500, Dave Philipsen wrote:
> So is that why my CoCo 3 has a different part # on one of the chips?
> 
> Dave Philipsen
> 
> ----- Reply message -----
> From: "John W. Linville" <linville at tuxdriver.com>
> To: "CoCoList for Color Computer Enthusiasts" <coco at maltedmedia.com>
> Subject: [Coco] CoCo Crew Podcast #4
> Date: Thu, Oct 1, 2015 2:03 PM
> 
> Yeah, that was a fun fact!  I think I had heard that before, but it
> felt a bit new when I was going over the show prep... :-)
> 
> John
> 
> On Thu, Oct 01, 2015 at 02:02:01PM -0400, Brett Gordon wrote:
> > I learned something about CoCo's PIA setup:  I never realized one PIA get
> > accesses faster than the other inthe Dual Speed mode.  Another good
> > episode, Thanks John and Neil !
> > 
> > On Wed, Sep 30, 2015 at 8:45 PM, tim lindner <tlindner at macmess.org> wrote:
> > 
> > > Another wonderful episode. Thanks for the mention of the my Diecom
> > > light gun web page. You motivated me to write up how to write a
> > > software driver to utilize the adaptor from the CoCo.
> > >
> > > http://tlindner.macmess.org/?page_id=105
> > >
> > > Also, during the PIA portion of the podcast people might like to have
> > > my handy "cheat sheet" for reference.
> > >
> > > http://tlindner.macmess.org/?page_id=124
> > >
> > >
> > >
> > > --
> > > --
> > > tim lindner (pronounce both Ns, but not the D).
> > >
> > > --
> > > Coco mailing list
> > > Coco at maltedmedia.com
> > > https://pairlist5.pair.net/mailman/listinfo/coco
> > >
> > 
> > 
> > 
> > -- 
> > Brett M. Gordon,
> > beretta42 at gmail.com
> > 
> > -- 
> > Coco mailing list
> > Coco at maltedmedia.com
> > https://pairlist5.pair.net/mailman/listinfo/coco
> 
> -- 
> John W. Linville  Someday the world will need a hero, and you
> linville at tuxdriver.com   might be all we have.  Be ready.
> 
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-- 
John W. Linville		Someday the world will need a hero, and you
linville at tuxdriver.com			might be all we have.  Be ready.