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液晶显示器件是高新技术产业和信息产业中最重要的信息处理手段之一。本文以HD61830B点阵式液晶显示控制器为例，讨论单片机8031与其接口的电路及卷动显示编程实例。
Liquid crystal display device is one of the most important information processing methods in high-tech industries and information industries. In this paper, HD61830B dot matrix LCD controller, for example, to discuss the interface of the microcontroller 8031 and scrolling display programming examples.