The wholechip floorplan is very important before you start the layout. % v5 A0 }. C8 [; f( T, a3 pThen the position of output pin are fixed for each sub block,and the line drawing will be smooth.+ p( D' ~; x9 Z0 o/ Q
Finally,the drc & lvs could be so easy to do . - A; k. Z- j4 a( HBut the floorplan must be verified by designer.The thing of re-layout almost have not be happened.