[Arm-netbook] RGB/TTL interface selection, why in EOMA-68

[jm]

On Thu, 2012-11-29 at 17:18 +0100, Henrik Nordström wrote:
> tor 2012-11-29 klockan 14:26 +0000 skrev luke.leighton:
> 
> >  in the case of products with larger screens, we need to get the
> > RGB/TTL signals only off the card and into the LVDS IC (dual or
> > single).  it's not far.
> 
> It is very far, even if a short distance. Crossing two PCBs, contacts
> and pins. Many reflection sources, impedance changes and possible lane
> alignment errors and interference sources.
> 
> Regards
> Henrik

I agree - very far for parallel buses and less so for differential
buses.