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Test generation for synchronous sequential circuits using multiple observation times

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2 Author(s)
Pomeranz, I. ; Dept. of Electr. & Comput. Eng., Iowa Univ., Iowa City, IA, USA ; Reddy, S.M.

The test generation problem for synchronous sequential circuits is considered in the case where hardware reset is not available. The observations which form the motivation for the work are given. On the basis of the observations, the use of multiple fault free responses as well as multiple time units for fault detection is suggested. Application to gate level synchronous sequential circuits is then considered. Experimental results are given to support the claim that a small number of observation times is required, and that a small number of fault free responses need be stored for every fault. 100% fault efficiency is achieved.<>

Published in:

Fault-Tolerant Computing, 1991. FTCS-21. Digest of Papers., Twenty-First International Symposium

Date of Conference:

25-27 June 1991