Testing the blade resilient asynchronous template

Testing the blade resilient asynchronous template
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测试刀片弹性异步模板

DOI:
10.1007/s10470-020-01651-8
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发表时间:
2021
影响因子:
1.4
通讯作者:
A. M. Amory
A. M. Amory
中科院分区:
工程技术4区
文献类型:
--
作者:
F. A. Kuentzer;L. R. Juracy;M. T. Moreira;A. M. Amory

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随着超大规模集成电路设计进入超深亚微米技术,必须在时钟周期中增加时序裕度,以确保在最坏情况下电路的正确行为。时序弹性架构作为一种有前途的解决方案出现,以减轻这些最坏情况下的时序裕度。这些架构可以提高系统性能并降低能耗。另一方面,异步系统具有提高能效和性能的潜力。刀片是一个异步定时弹性模板,它利用了异步和定时弹性技术的优点。然而,Blade在其可测试性方面仍然存在挑战,这阻碍了其商业或大规模应用。本文证明了扫描链由于其高硅成本而对Blade来说可能是令人望而却步的。可以达到100%以上。然后,它提出了一种替代的测试方法,允许并发测试,固定,和延迟测试。测试方法基于重用刀片式服务器功能以提供可测试性,硅面积开销在4%到7%之间。
As VLSI design moves into ultra-deep-submicron technologies, timing margins added to the clock period are mandatory, to ensure correct circuit behavior under worst-case conditions. Timing resilient architectures emerged as a promising solution to alleviate these worst-case timing margins. These architectures allow improving system performance and reducing energy consumption. Asynchronous systems, on the other hand, have the potential to improve energy efficiency and performance. Blade is an asynchronous timing resilient template that leverages the advantages of both asynchronous and timing resilient techniques. However, Blade still presents challenges regarding its testability, which hinders its commercial or large-scale application. This paper demonstrates that scan chains can be prohibitive for Blade due to their high silicon costs., which can reach more than 100%. Then, it proposes an alternative test approach that allows concurrent testing, stuck-at, and delay testing. The test approach is based on the reuse the Blade features to provide testability, with silicon area overheads between 4 and 7%.
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