[Milkymist-devel] Placements

[Sébastien Bourdeauducq]

On Tuesday 23 March 2010 13:28:18 Adam Wang wrote:
> > As I said in my first email, serpentine traces won't be needed: we'll use
> > the IODELAYs instead, which do not pose their signal integrity issues.
> 
> I've used serpentine traces on DVR system. The length about
> transmission becomes more seriously. However, haven't seen this useful
> IODELAYs feature said, would like face this powerful practically. But
> if insist on using recommends, I can add length.

I was recommending NOT to add length. Just use the shortest traces possible 
and do not match them.

IODELAYs have a granularity of ~60ps, while Micron recommends matching to 
167ps. So there should be no problem.

Sébastien