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The paper deals with designing fault tolerant finite state machines (FSMs) by nanoelectronic programmable logic arrays (PLAs). Two main critical parameters of the fault tolerant nano-PLAs, the area and the number of crosspoint devices, are considered as optimization criteria for the synthesis. The paper introduces a method for synthesizing fault tolerant nano-PLA based FSMs. The method is based on decomposing an initial PLA description of the FSM into a three interacting portions. The proposed solution provides significant reduction of the area without meaningful increasing of a number of crosspoint devices in comparison with known solutions and provides a trade-off between the area and the number of devices in designing FSMs by PLAs.
Date of Conference: 24-26 June 2009