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对用于单片机的键盘子系统的专用键盘接口芯片进行功能分析,就芯片中核心部件的时序设计进行状态描述,并利用可编程逻辑技术和原理图输入方式对键盘接口芯片的内部结构加以实现。
This paper analyzes the function of the special keyboard interface chip used in the keyboard subsystem of the singlechip, describes the state design of the timing design of the core components in the chip, and realizes the internal structure of the keyboard interface chip by using the programmable logic technology and the schematic input method.