A Reconfigurable Arithmetic Data-path Based On Regular Interconnection

In this paper a novel coarse grained reconfigurable arithmetic unit (RAU) is introduced. The RAU´s design is based on a technique that Mines flexibility into custom Carry-Save-Arithmetic (CSA) circuits exploiting a stable and canonical interconnection scheme. The reconfigurable architecture prototype is presented. Two mapping strategies of DSP algorithms onto the proposed unit, are also analyzed. Experimental results report an average latency reduction of 32.63% and of 40% compared with datapaths structured by primitive computational resources, using the first and the second mapping strategy respectively.