Memory modules implemented on an FPGA device are re-implemented to improve
the performance of the device, such as to reduce logic delays. One or
more logic blocks of the FPGA device that realize the logic function of a
memory module or portion of a memory module are desirably selected. Based
on the outcome of a timing analysis, the most critical signal pin of the
selected logic blocks may be identified. Methods of deriving the memory
module re-implementation for various types of the most critical pins are
disclosed. Procedures are described for integrating physical timing
analysis, memory transformation, placement, and routing, as well as for
the selection of logic blocks for re-implementation.