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IEICE TRANSACTIONS on Fundamentals

Flexible Test Scheduling for an Asynchronous On-Chip Interconnect through Special Data Transfer

Tsuyoshi IWAGAKI, Eiri TAKEDA, Mineo KANEKO

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Summary :

This paper proposes a test scheduling method for stuck-at faults in a CHAIN interconnect, which is an asynchronous on-chip interconnect architecture, with scan ability. Special data transfer which is permitted only during test, is exploited to realize a more flexible test schedule than that of a conventional approach. Integer linear programming (ILP) models considering such special data transfer are developed according to the types of modules under test in a CHAIN interconnect. The obtained models are processed by using an ILP solver. This framework can not only obtain optimal test schedules but also easily introduce additional constraints such as a test power budget. Experimental results using benchmark circuits show that the proposed method can reduce test application time compared to that achieved by the conventional method.

Publication
IEICE TRANSACTIONS on Fundamentals Vol.E94-A No.12 pp.2563-2570
Publication Date
2011/12/01
Publicized
Online ISSN
1745-1337
DOI
10.1587/transfun.E94.A.2563
Type of Manuscript
Special Section PAPER (Special Section on VLSI Design and CAD Algorithms)
Category
Logic Synthesis, Test and Verification

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