application specific integrated circuits module 3 part 2.pptx

application specific integrated circuits module 3 cad tools

1. Physical Design

2. ASIC Construction Physical design: The physical design of ASICs is normally divided into system partitioning, floorplanning , placement and routing. A microelectronic system is the town and the ASICs are the buildings. System partitioning corresponds to town planning, ASIC floorplanning is the architect’s job, placement is done by the builder and the routing is done by the electrician.

3. ASIC design flow has the steps system partitioning, floor planning, placement and routing steps As the focus shifts from logic to interconnect, floor planning assumes an increasingly important role. Eachof the steps must be performed and each depends on the previous step. The trend is toward completing these steps in a parallel fashion and iterating, rather than in a sequential manner.

4. Gates