8279是Intel公司设计的一种键盘/显示电路芯片。它的工作模式是可编程控制的,能自动产生扫描脉冲、接收按键信号和发送显示数据,具有去抖处理、连键处理、键码缓冲处理等功能。但是,不具备自控系统和自控仪表中常常需要的按键重复功能,不能像PC机键盘那样,按下某个键不放时实现重复输入这个键值。 8279 is a keyboard / display circuit chip designed by Intel Corporation. Its working mode is programmable, can automatically generate scan pulses, receive key signals and send display data, with debounced processing, key processing, key code buffer processing and other functions. However, do not have the automatic control system and self-control instruments often need the key repeat function, not as PC-based keyboard, press a key repeatedly to achieve the repeated input of this key.