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Hybrid designs generating maximum-length sequences

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2 Author(s)
Laung-Terng Wang ; Center for Reliable Comput., Stanford Univ., CA, USA ; McCluskey, E.J.

Two hybrid schemes for the design of maximum-length sequence generators (MLSGs) are presented. Compared to an n-stage maximum-length LFSR (for generating 2n-1 nonzero distinct states) that uses m exclusive-or (XOR) gates, this hybrid MLSG will use exactly (m+1)/2 XOR gates if its characteristic polynomial meets certain requirements. For applications such as exhaustive testing, this hybrid MLSG is then reconfigured to include the all-zero state. It is shown that the reconfiguration is very simple and the hardware overhead is low

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Computer-Aided Design of Integrated Circuits and Systems, IEEE Transactions on  (Volume:7 ,  Issue: 1 )