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Message
From: "MikeJ" <mikej@f...>
Date: Thu, 21 Aug 2003 17:43:18 +0100
Subject: Re: [oc] Interested in developing CRT controller core
You might find the VIC chip (6561) - a programmable 6502 series CRTC used in
the vic-20 at www.fpgaarcade.com useful.
Cheers,
Mike.
> >
> >
> >
> > I've decided to code MC6845 CRTC. This CRTC can be used as a
> > building block
> > of a video controller core (graphics or text mode) although MC6845
> > is used
> > in CGA and not EGA/VGA. It is possible to use it in high resolution
> > applications though it was designed 22 years ago. ;-)
> >
> > All internal/external signals are named like in original MC6845
> > datasheet.
> > At the moment horizontal sync is working and now I'm working on
> > vertical
> > sync.
> >
> > regards, Damjan
> >
> --
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