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Design of totally self-checking embedded two-rail code checkers

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1 Author(s)
Ozguner, F. ; Dept. of Electr. Eng., Ohio State Univ., Columbus, OH, USA

The author addresses the problem of designing totally self-checking checkers for checking m two-rail signal pairs, when the checker receives a subset of all possible input codewords, under normal operation. There are cases when a two-rail checker tree, which will be tested by the inputs received under normal operation, cannot be found. However, it is shown that two-rail checker network structures other than trees will also be totally self-checking (TSC) and code-disjoint. A method for designing TSC two-rail checkers for a given set of input codewords is presented.

Published in:

Electronics Letters  (Volume:27 ,  Issue: 4 )