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本文介绍使用四片8214中断控制器与一片8212入出接口芯片组合应用,实现对32个中断源的中断优先级管理,并按中断模式2向Z80 CPU 提供中断矢量低8位。
This article describes the use of four 8214 interrupt controller with a chip 8212 into the interface chip combination of applications to achieve the 32 interrupt source interrupt priority management and interrupt mode 2 interrupt vector to provide the lower 8-bit.