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本文介绍双端口ＲＡＭ的特性及使用方法，并给出了利用双端口ＲＡＭ芯片实现８０９８单片机与ＰＣ机间高速数据交换的应用实例。
This paper introduces the characteristics of dual port RAM and how to use it, and gives an example of using double port RAM chip to realize the high speed data exchange between 8098 single chip microcomputer and PC.