论文部分内容阅读
充分利用控制器功能多、灵活可靠、性能价格比高等特点，可以开发多路测控系统，而这通常要用到微控制器的中断功能。八十年代初，Ｉｎｔｅｌ公司推出的ＭＣＳ—５１系列微控制器有３２个Ｉ／Ｏ口，２个外部中断输入口，５个中断源分为两个中断优先级（８０５２有６个中断源）
By taking full advantage of the controller’s versatility, flexibility, reliability, and high cost-performance ratio, it is possible to develop multi-channel measurement and control systems, which usually use the microcontroller’s interrupt function. In the early 1980s, the MCS-51 series of microcontrollers introduced by Intel Corporation had 32 I/O ports and two external interrupt input ports. Five interrupt sources were divided into two interrupt priorities (8052 had 6 interrupt sources).