The wholechip floorplan is very important before you start the layout.2 f3 Q4 L" P6 g- f4 P; F w' r
Then the position of output pin are fixed for each sub block,and the line drawing will be smooth. - W x" G: [5 X) g* ^& ]Finally,the drc & lvs could be so easy to do .. H3 j; G0 Y+ k$ V
But the floorplan must be verified by designer.The thing of re-layout almost have not be happened.