[Coco] Coco3 question

Mike Pepe lamune at doki-doki.net
Tue Feb 12 19:27:54 EST 2008

Joef6809 wrote:
> Didn't say it made sense, I'm just saying thats what the 6847 sheet says.
> Page 11 of the MC6847 or page 12 of the MC6847T1 sheet clearly states 
> that each each frame is 262.5 Interlaced and 262 non-interlaced line. 
> Unless I'm reading it wrong.
> Theres a link to it here if you care to wander down this path with me.
> http://vcc6809.bravehost.com/techdocs/MC6847.pdf

The 6847 version used in the CoCo does not use interlaced sync.

I'd guess the "half line" of the 6847Y is one-half of one complete 
interlaced line.

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