USR quad modems... (ontopic - really!)

[Tony Duell]

[CoCo 3 GIME]

> >> I would assume the controller would exploit page mode references
> >> (especially when dealing with sequential accesses like video).
> > 
> > I am not sure, and the service manual (which I have) doesn't make any 
> > obvious reference to this.
> 
> Any timing diagrams for DRAM access?  You'd recognize the page mode
> cycles by the lack of a 1:1 pairing of RAS with CAS.
> 

Sure. But I think the only timing diagram is a 'representative' one 
showing a normal cycle. No idea if it does other types of cycle as well.

-tony