▁Video ▁ ▁Video ▁Over ▁IP ▁Gate way ▁ ▁Digital ▁Dis plays ▁ ▁Indust rial ▁Im aging ▁ ▁Computer ▁V ision ▁ ▁W ired ▁Communic ations ▁ ▁Opt ical ▁Transport ▁Network s ▁ ▁Network ▁Process ing ▁ ▁Connect ivity ▁Inter faces ▁ ▁W ire less ▁Communic ations ▁ ▁Base band ▁ ▁Connect ivity ▁Inter faces ▁ ▁Mobile ▁Back ha ul ▁ ▁Radio ▁ ▁Architecture ▁ ▁Log ic ▁blocks ▁▁ ▁The ▁most ▁common ▁F P GA ▁architecture ▁consists ▁of ▁an ▁array ▁of ▁logic ▁blocks , ▁I / O ▁p ads , ▁and ▁routing ▁channels . ▁Gener ally , ▁all ▁the ▁routing ▁channels ▁have ▁the ▁same ▁width ▁( number ▁of ▁w ires ). ▁Multiple ▁I / O ▁p ads ▁may ▁fit ▁into ▁the ▁height ▁of ▁one ▁row ▁or ▁the ▁width ▁of ▁one ▁column ▁in ▁the ▁array . ▁ ▁An ▁application ▁circuit ▁must ▁be ▁mapped ▁into ▁an ▁F P GA ▁with ▁ade qu ate ▁resources . ▁While ▁the ▁number ▁of ▁CL B s / LAB s ▁and ▁I / Os ▁required ▁is ▁easily ▁determined ▁from ▁the ▁design , ▁the ▁number ▁of ▁routing ▁tracks ▁needed ▁may ▁vary ▁consider ably ▁even ▁among ▁designs ▁with ▁the ▁same ▁amount ▁of ▁logic . ▁ ▁For ▁example , ▁a ▁cross bar ▁switch ▁requires ▁much ▁more ▁routing ▁than ▁a ▁syst ol ic ▁array ▁with ▁the ▁same ▁gate ▁count . ▁Since ▁un used ▁routing ▁tracks ▁increase ▁the ▁cost ▁( and ▁decrease ▁the ▁performance ) ▁of ▁the ▁part ▁without ▁providing ▁any ▁benefit , ▁F P GA ▁manufact ur ers ▁try ▁to ▁provide ▁just ▁enough ▁tracks ▁so