Single Stuck-At Fault Diagnosing Circuit of Reed-Muller Canonical Exclusive-Or Sum of Product Boolean Expressions
Abstract
A testable design with a universal test set for single stuck-at zero and stuck-at one faults of Reed-Muller canonical form of Exclusive-OR sum of product logic expressions is proposed. The test circuit detects almost all the single stuck-at faults and needs only simple modifications for variations in the circuit under test. The number of test vectors is also quite small compared with the classical method. The factor of un-identifiability is discussed and a new quantification parameter for the fault diagnosis has also been introduced. Results of Matlab simulations for a few logic functions are included.
DOI: https://doi.org/10.3844/jcssp.2006.595.599
Copyright: © 2006 P. N. Neelakantan and A. E. Jeyakumar. This is an open access article distributed under the terms of the
Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
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Keywords
- Combinational circuits
- exclusive-or sum of products
- Reed-Muller canonical form
- single stuck-at faults
- testability realization
- universal test set