Hardware Overhead Reduction of a QDI Booth Multiplier

 This paper presents a new method to implement a multiplier using the Quasi Delay Insensitive (QDI) approach. QDI circuits allow unbounded delays on wires and gates, and require the difference among the delays in forks to be less than the delays of their terminating gates. To implement the Booth multiplier following the QDI approach, we considered Martin’s method. In this method, an asynchronous circuit is considered as a set of cells that communicate through a handshaking protocol, and is synthesized from a high level definition through different levels of  translation. The main problem related to the resulting circuits is their considerable overhead due to the implementation of handshaking protocols

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