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由美国国家半导体公司生产的 COP400系列单片四位微理机是一种指令系统丰富,性能齐全,种类繁多的面向控制的微机电路。COP402是 COP400系列中的一种,它广泛应用于生产过程的自动检测、实时控制、智能仪器仪表和家用电器等领域,随着对它的进一步开发,其应用领城将越来越广。显示键盘系统的设计是单片机化产品设计中经常遇到的问题,而每个具体产品对显示键盘系统的要求也是不一样的。但不管怎样,在满足一定功能要求的前提下,力图使构成显
The COP400 series of monolithic four-position micro-machines manufactured by National Semiconductor is a control-oriented microcomputer circuit with a rich command line, complete functions and a large variety of control circuits. COP402 is a kind of COP400 series, it is widely used in the automatic detection of the production process, real-time control, smart instrumentation and household appliances and other fields, with its further development, its application will be more and more widely. Display keyboard system design is often encountered in the design of SCM products, and each specific product display keyboard system requirements are not the same. But in any case, in the premise of meeting certain functional requirements, trying to make the constitution significant