摘要
IBM—PC 微型计算机及其兼容微机已大量应用于过程控制,由于该机型可供用户使用的中断源很少,因此,必须扩展中断源.本文介绍了两种行之有效的中断扩展方法:母子式扩充法和简捷扩充法.母子式扩充法能将中断源无限扩展,简捷扩充法不需要加中断控制器便能使中断源成倍增加.这两种方法能满足对中断源的各种要求.
IBM-PC and its compatital microcomputerhave been a widely used in process contral,asthe interrupt sources that the micro-computercan be applied for user is very little,itmust be extended.In this paper,two efficientmethodes of extending interrupt sources areexplained,one is called“motherson extensionmethod”,another is called“sionple replace-ment method”,they can meet all demandsfor the number of the interrupt sources.
出处
《微电子学与计算机》
CSCD
北大核心
1991年第8期21-25,共5页
Microelectronics & Computer
