摘要
提出在ＴＰ－８６Ａ机上无需外接８２５９Ａ，直接使用机上的８２５５Ａ设置中断类型号以实现中断传送的方法。此法不仅适用于单中断源，还可方便地实现中断嵌套，使ＴＰ－８６Ａ机的使用更加方便。
The 8255A controller of the TP-86A unit is directly used to realize the interruption transmission without connecting to the external 8259A controller.This method is suitable not only to the single interruption source but to the multiple interruption.
