Technology mapping for FPGAs with complex block architectures by fuzzy logic technique

This paper describes a technology mapper for FPGAs with the complex structure of logic blocks. Most technology mappers developed so far are not effective for such complex logic block architectures as XILINX XC4000 series. The proposed mapper applies a constructive mapping algorithm and fuzzy logic rules to balance such criteria as area, timing, routability and others. Performance of the mapper is demonstrated on the set of MCNC benchmarks.