M-of-N Code Decomposition for Indicating Combinational Logic

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Provided by: The University of Maine at Machias
Topic: Hardware
Format: PDF
Self-timed circuits present an attractive solution to the problem of process variation. However, implementing self-timed combinational logic is complex and expensive. In particular, mapping large function blocks into cell-libraries is difficult as decomposing gates introduces new signals which may violate indication. This paper presents a novel method for implementing any m-of-n encoded function block using \"Bounded gates\", where any gate may be decomposed without violating indication. This is achieved by successively decomposing the input encoding into smaller m-of-n codes.
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