The wholechip floorplan is very important before you start the layout. ) z3 T: R) `! b* W7 U. lThen the position of output pin are fixed for each sub block,and the line drawing will be smooth.# n. e; S+ j7 L) @7 |1 R
Finally,the drc & lvs could be so easy to do . 3 b8 P# g' ^+ p3 MBut the floorplan must be verified by designer.The thing of re-layout almost have not be happened.