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Article Information


Article Information
Title A New Class of Easily Testable Assignment Decision Diagrams
Author(s) Norlina Paraman, Chia Yee Ooi , Ahmad Zuri Sha’ameri, Hideo Fujiwara
Journal Malaysian Journal of Computer Science (ISSN 0127-9084)
Volume 23, No 1
Year 2010
Keywords Assignment Decision Diagram (ADD); Thru-testable; Design-For-Testability (DFT); Digital testing
Abstract This paper introduces a new class of assignment decision diagrams (ADD) called thru-testable ADDs based on a testability property called thru function. The thru-testable ADDs is an easily-testable set of thru functions that allows data transfer from its input to its output. We also define a design-for-testability (DFT) method to augment a given ADD with thru functions so that the ADD becomes thru-testable. We compare the circuits modified using our proposed method with the original circuits and partial scan designed circuits in terms of fault efficiency, area overhead, test generation time and test application time. Since the proposed DFT method is introduced at a high level, which deals with less number of gates, the information of thru functions can be extracted more easily. As a result, it lowers the area overhead compared to partial scan.
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