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Design of a Synchronous Control Unit for a Datapath with Variable Delay Arithmetic Units

Nowadays variable delay arithmetic units have been used for implementing a datapath of\ulcorner target system in pursuit of performance improvement. However. adoption of variable delay arithmetic units requires modification of a typical synchronous control units design methodology. There is a representative approach, which is called a monolithic approach. Although its results are good, its proposed methodology may cause critical problems in the aspects of area and performance with the size increase of initial system specifications. In order to solve this problems, a distributed approach is suggested. Experimental results show that the Proposed method can guarantee original performance of an initial system specification with minimized additional area increase.