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A Unified Approach to Combinational Hazards
June 1974 (vol. 23 no. 6)
pp. 566-575
J. Beister, Institut f?r Nachrichtenverarbeitung, Karlsruhe University
Transients in combinational circuits are approached through an analysis of the transition process in a pure delay circuit model that completely separates delay from structure and logic. During any transition, only monotonically increasing sequences of transient input vertices can occur because no transient input variable can change more than once. This restriction to the shortest trajectories through the transition subcube yields a common criterion for all types of hazards in feedback-free combinational circuits: a transition is hazard-free iff the transient switching function is unate in the transition subcube with respect to the initial and final vertices.
Index Terms:
Combinational circuits, dynamic hazards, hazard detection, Karnaugh map applications, partial ordering, pure delay model, transient switching function, transition, unate functions.
Citation:
J. Beister, "A Unified Approach to Combinational Hazards," IEEE Transactions on Computers, vol. 23, no. 6, pp. 566-575, June 1974, doi:10.1109/T-C.1974.223996
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