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Solutions for undetected shorts on IEEE 1149.1 self-monitoring pins

机译:IEEE 1149.1自监视引脚上未检测到的短路的解决方案

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摘要

This paper presents the problem of undetected shorts on IEEE 1149.1 compliant self-monitoring pins. Unidirectional and bidirectional self-monitoring pins may contain sufficient series termination resistance and low enough voltage swings such that shorts between two pins become resistively isolated from the receivers and therefore are undetected during wiring interconnect tests. Potential solutions to mitigate the problem are offered.
机译:本文提出了未检测到符合IEEE 1149.1的自监控引脚短路的问题。单向和双向自监视引脚可能包含足够的串联终端电阻和足够低的电压摆幅,从而使两个引脚之间的短路与接收器成为电阻隔离,因此在进行互连测试时无法检测到。提供了缓解该问题的潜在解决方案。

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