The wholechip floorplan is very important before you start the layout. / E/ b1 |( a) E" l) h# o' PThen the position of output pin are fixed for each sub block,and the line drawing will be smooth.4 ~* O: s& h) r7 [8 L7 U
Finally,the drc & lvs could be so easy to do . ( _, |0 O4 j. F3 v% kBut the floorplan must be verified by designer.The thing of re-layout almost have not be happened.