介绍了IEEE P 1149.5电路板测试和维护总线标准，内容包括用途、结构、协议层次、中断与命令。
The IEEE P1149.5 Standard for Board Test and Maintenance Bus that include its application, architecture, protocol layers, interrupts and commands is introduced.
介绍了IEEE P 1149.5电路板测试和维护总线标准，内容包括用途、结构、协议层次、中断与命令。
The IEEE P1149.5 Standard for Board Test and Maintenance Bus that include its application, architecture, protocol layers, interrupts and commands is introduced.
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