Please use this identifier to cite or link to this item: http://dx.doi.org/10.18419/opus-7899
Authors: Wunderlich, Hans-Joachim
Hellebrand, Sybille
Title: The pseudoexhaustive test of sequential circuits
Issue Date: 1992
metadata.ubs.publikation.typ: Zeitschriftenartikel
metadata.ubs.publikation.source: IEEE transactions on computer-aided design of integrated circuits and systems 11 (1992), S. 26-33. URL http://dx.doi.org./10.1109/43.108616
URI: http://nbn-resolving.de/urn:nbn:de:bsz:93-opus-73030
http://elib.uni-stuttgart.de/handle/11682/7916
http://dx.doi.org/10.18419/opus-7899
Abstract: The concept of a pseudoexhaustive test for sequential circuits is introduced in a way similar to that which is used for combinational networks. Using partial scan all cycles in the data flow of a sequential circuit are removed, such that a compact combinational model can be constructed. Pseudoexhaustive test sequences for the original circuit are constructed from a pseudoexhaustive test set for this model. To make this concept feasible for arbitrary circuits a technique for circuit segmentation is presented which provides special segmentation cells as well as the corresponding algorithms for the automatic placement of the cells. Example circuits show that the test strategy requires less additional silicon area than a complete scan path. Thus the advantages of a partial scan path are combined with the well-known benefits of a pseudoexhaustive test, such as high fault coverage and simplified test generation.
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