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Fault detecting test sets to detect multiple stuck-at-faults in certain networks realizing Reed-Muller canonic expressions are given. It is shown that to detect t faults, t ≥ 1, in a network realizing an arbitrary n-variable logic function only 4 + Σ i=1 [log22t] (in) tests need be applied ([x] is the integer part of x) and that these tests are independent of the function being realized. Techniques...
A physico-mathematical basis is used to establish bounds TD(n) on the time needed to compute n-argument functions by spatially distributed primitive devices or composite systems D. The axioms used concern the speed, packing density and noise threshold of the energy with which any computing device detects or alters the physical representation of information. The principal result is that TD(n) grows...
This paper deals with hazards on out-puts of combinational switching circuits for multiple input changes. Certain types of function hazards are defined and are shown to be impossible to eliminate with any logic realization. Also, an interrelation between static and dynamic function hazards is established. Hazards due to delays in the logic are defined and a method of elimination is given for both...
It is generally recognized that asynchronous operation of logic networks offers specific advantages over synchronous operation controlled by a central clock when the network is subject to large or widely varying inter-module propagation delays. In this paper we characterize several previously described techniques for achieving asynchronous operation by a single model. Essential to the model is the...
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