Effective Domain Partitioning for Multi-Clock Domain IP Core Wrapper Design under Power Constraints
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概要
- 論文の詳細を見る
The rapid advancement of VLSI technology has made it possible for chip designers and manufacturers to embed the components of a whole system onto a single chip, called System-on-Chip or SoC. SoCs make use of pre-designed modules, called IP-cores, which provide faster design time and quicker time-to-market. Furthermore, SoCs that operate at multiple clock domains and very low power requirements are being utilized in the latest communications, networking and signal processing devices. As a result, the testing of SoCs and multi-clock domain embedded cores under power constraints has been rapidly gaining importance. In this research, a novel method for designing power-aware test wrappers for embedded cores with multiple clock domains is presented. By effectively partitioning the various clock domains, we are able to increase the solution space of possible test schedules for the core. Since previous methods were limited to concurrently testing all the clock domains, we effectively remove this limitation by making use of bandwidth conversion, multiple shift frequencies and properly gating the clock signals to control the shift activity of various core logic elements. The combination of the above techniques gains us greater flexibility when determining an optimal test schedule under very tight power constraints. Furthermore, since it is computationally intensive to search the entire expanded solution space for the possible test schedules, we propose a heuristic 3-D bin packing algorithm to determine the optimal wrapper architecture and test schedule while minimizing the test time under power and bandwidth constraints.
- （社）電子情報通信学会の論文
- 2008-03-01
著者
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Fujiwara Hideo
Computer Design And Test Lab Nara Institute Of Science And Technology
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Fujiwara Hideo
Nara Institute Of Science And Technology:japan Science And Technology Agency Crest
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Yoneda Tomokazu
Computer Design And Test Lab Nara Institute Of Science And Technology
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YU Thomas
Computer Design and Test Lab, Nara Institute of Science and Technology
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ZHAO Danella
The Center For Advanced Computer Studies, University of Louisiana at Lafayette
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Yu Thomas
Computer Design And Test Lab Nara Institute Of Science And Technology
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Yoneda Tomokazu
Nara Inst. Sci. And Technol. (naist) Ikoma‐shi Jpn
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Zhao Danella
The Center For Advanced Computer Studies University Of Louisiana At Lafayette
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Fujiwara Hideo
Nara Inst. Sci. And Technol. (naist) Ikoma‐shi Jpn
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