A router for via configurable structured ASIC with standard cells and relocatable IPs

This article presents a router, called Rover II, for via-configurable structured ASIC with mixed standard cells and relocatable IPs. Rover II extends the work of Rover and incorporates a porting of NTHU-Route 2.0 and NCTU-GR global routers. Experimental results show that Rover II can successfully route a via-configurable structured ASIC with standard cells and IPs under different routing fabrics. Rover II´s global router results in less detailed routing runtime and in many cases even achieves smaller wire length and via count than NTHU-Route 2.0 and NCTU-GR do. It is quite robust when routing resources are scarce.