Programmable input delay on ARRIA II GX

Thanks, FvM.

As I understand it that would take a PLL which I would rather avoid

if the functionality comes cheaper.

Looking at the IOE structure there is "programmable delay" but I am guessing

by your comments that this is not _dynamically_ programmable and hence that

would be why it would not show up in altiobuf megafunction params.

Data rate is slow enough at 250MHz DDR LVDS such that I only really

need the dynamic behavior initially for convenience so perhaps I just do a bunch

of builds <tick-tock> with the "fixed" "programmable delay" varied and find my happy place.

Sound good?

Cos