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介绍了ＤＳ８０Ｃ３２０单片机双串行口的工作原理、通信编程方法，给出了由它构成的智能装置通信协议转换器的设计与实现方法。还介绍了在智能抄表系统和变电站综合自动化中的应用实例。
The working principle and communication programming method of DS80C320 singlechip dual serial port are introduced, and the design and implementation method of intelligent device communication protocol converter composed of it are given. Also introduced in the smart meter reading system and substation automation applications.