[Coco] How does the VDG work exactly?

[Phill Harvey-Smith]

Robert Gault wrote:
> 
> If you want to follow the operation of the VDG, you should try to
> find the data sheet for the MC6847. It probably is on the Internet
> somewhere.
> 
> The data sheet contains summaries, timing charts, block diagrams, and
>  symbolic circuit diagrams.

There's a copy of it, the 6809, SAM and PIA data sheets in the pdf of
"Inside the Dragon", available from the Dragon archive site.

Cheers.

Phill.

-- 
Phill Harvey-Smith, Programmer, Hardware hacker, and general eccentric !

"You can twist perceptions, but reality won't budge" -- Rush.