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Design method of a class of embedded combinational self-testing checkers for two-rail codes

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1 Author(s)
Piestrak, S.J. ; Inst. of Eng. Cybern., Tech. Univ. Wroclaw, Poland

This paper tackles the open problem of designing combinational self-testing checkers (STCs) for K-pair 2-rail codes which are self-testing, even by a subset of codewords, such that some input lines are 0 (or 1) for only one input codeword. The checker presented in the paper has both theoretical and practical importance. It is useful, for example, to build STCs for other systematic error-detecting codes, like Berger codes with I = 2K-1 data bits and arithmetic codes with the check base A = 2K-1+I (K = 3, 4, 5, ...). It also allows the designers to build functional totally self-checking circuits with 100% fault coverage in which such 2-rail codes could not have been used otherwise

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Computers, IEEE Transactions on  (Volume:51 ,  Issue: 2 )