[Coco] Q: CoCo2 border

[jdaggett at gate.net]

Roger

>From the specs 

The 6847 non-interlaced VDG is recommended for use in systems 
where absolute NTSC compatibiolity are not required. If NTSC 
compatibility is required, perhaps for caption overlays on lroad-case 
signals, the the 6847Y interlaced VDG is recommended. 

>From everything else except for the field sync generation the two 
seem interchangable if you are using a TV set as a monitor. The Y 
version generates 525 lines instead of 262. 

Maybe worth a try?

james


On 12 Jan 2004 at 0:00, Roger Taylor wrote:

Date sent:      	Mon, 12 Jan 2004 00:00:45 -0600
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From:           	Roger Taylor <rtaylor at bayou.com>
Subject:        	Re: [Coco] Q: CoCo2 border
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> At 04:56 PM 1/11/2004 -0500, you wrote:
> >Eric
> >
> >Interlaced or nonInterlace will depend on whehter you use the
> >MC6847 or MC6847Y.The MC6847Y is interlaced video.
> 
> Hmm.  How different is the Y from the regular 6847 besides the 
> interlacing?  Does it require two page addresses, or does it interlace
> from a single video page?
> 
> 
> ----------
> Roger Taylor
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