National Tsing Hua University Institutional Repository:Testing and diagnosis methodologies for embedded content addressable memories
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    National Tsing Hua University Institutional Repository > 電機資訊學院 > 電機資訊學院學士班 > 期刊論文 >  Testing and diagnosis methodologies for embedded content addressable memories


    题名: Testing and diagnosis methodologies for embedded content addressable memories
    作者: Li, Jin-Fu;Tzeng, Ruey-Shing;Wu, Cheng-Wen
    教師: 吳誠文
    日期: 2003
    出版者: Springer Verlag
    關聯: Journal of Electronic Testing , Volume 19 , pages 207-215 , March 2003
    关键词: Electronic equipment testing
    Embedded systems
    Random access storage
    Requirements engineering
    摘要: © 2003 Springer Verlag - Embedded content addressable memories (CAMs) are important components in many system chips where most CAMs are customized and have wide words. This poses challenges on testing and diagnosis. In this paper two efficient March-like test algorithms are proposed first. In addition to typical RAM faults, they also cover CAM-specific comparison faults. The first algorithm requires 9N Read/Write operations and 2(N + W) Compare operations to cover comparison and RAM faults (but does not fully cover the intra-word coupling faults), for an N × W-bit CAM. The second algorithm uses 3N log2 W Write and 2W log2 W Compare operations to cover the remaining intra-word coupling faults. Compared with the previous algorithms, the proposed algorithms have higher fault coverage and lower time complexity. Moreover, it can test the CAM even when its comparison result is observed only by the Hit output or the priority encoder output. We also present the algorithms that can locate the cells with comparison faults. Finally, a CAM BIST design is briefly described.
    显示于类别:[電機資訊學院學士班] 期刊論文


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