A method for determining whether asynchronous circuits are self-checking

While asynchronous circuits offer potential advantages over synchronous circuits, particularly in the form of low power and low noise properties, it is widely held that they are more difficult to test. The self-checking properties of semi-modular asynchronous circuits with respect to certain stuck-a...

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Bibliographic Details
Main Authors: Liebelt, M.J., Cheng-Chew Lim
Format: Conference Proceeding
Language:English
Subjects:
Asynchronous circuits
Automatic testing
Circuit faults
Circuit noise
Circuit testing
Delay
Logic testing
Power engineering and energy
System recovery
System testing
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Summary:While asynchronous circuits offer potential advantages over synchronous circuits, particularly in the form of low power and low noise properties, it is widely held that they are more difficult to test. The self-checking properties of semi-modular asynchronous circuits with respect to certain stuck-at faults have been known for many years, but the restrictions have been such that it has not been feasible to make use of this property to enhance testability. In this paper we demonstrate the feasibility of a technique to determine whether a proposed asynchronous circuit implementation is totally self-checking with respect to all output stuck-at-faults. This test can he incorporated into the design process to select a self-checking implementation when several alternatives are available.
ISSN:1081-7735
2377-5386
DOI:10.1109/ATS.2000.893669