Hard Macro Interface Timing Closure Issue
A timing closed hard macro provides many benefits in today's complex VLSI design cycle. But sometimes its interface timing issues can cause a lot of headaches in closing SoC timing if not identified early in the design cycle. Sometimes the critical situations can even force us to go back to placement stage, hence impacting the design closure schedule. So it becomes important to identify such cases earlier in the design cycle and take necessary action beforehand to mitigate the risks. This paper focuses on a simplistic approach to identify and deal with such timing critical cases of the hard macro interfaces quite early in the design cycle to achieve the desired results in an efficient and predictable way.