The wholechip floorplan is very important before you start the layout.- M: G' v s2 U/ u
Then the position of output pin are fixed for each sub block,and the line drawing will be smooth. 3 e! k! D' K. A% i# K0 qFinally,the drc & lvs could be so easy to do . J6 z# G( S5 } }1 ^But the floorplan must be verified by designer.The thing of re-layout almost have not be happened.