ivlsi
Advanced Member level 3
Here are some quotes:
So, if WLM is not used and RC-extraction is not ready yet, how does the tool calculate timing over interconnects (nets)?
If you use Physical Synthesis (DC-Topographical or RC-PLE), you should not use WLM at all. In the synthesis tool, you should load FloorPlan before making any RTL synthesis (this way you restrict your design by area).
You have to specify information like die size, placement blockages, macrocell placement etc. to take full advantage of this feature.
So, if WLM is not used and RC-extraction is not ready yet, how does the tool calculate timing over interconnects (nets)?