The wholechip floorplan is very important before you start the layout.) a: m4 |1 y9 E0 C1 s2 W7 M
Then the position of output pin are fixed for each sub block,and the line drawing will be smooth." p/ R$ C4 J& V/ J
Finally,the drc & lvs could be so easy to do . 8 r. }3 {: R- A* kBut the floorplan must be verified by designer.The thing of re-layout almost have not be happened.