The wholechip floorplan is very important before you start the layout.- `5 m1 V. c5 C# u$ Q
Then the position of output pin are fixed for each sub block,and the line drawing will be smooth. ' F3 t7 S3 ]. X) V. yFinally,the drc & lvs could be so easy to do .( y* \( `+ b4 B, z8 U3 ^
But the floorplan must be verified by designer.The thing of re-layout almost have not be happened.