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3.1 概述第一章介绍过维护与外设模块的功能,第二章提供了计算机布局设计,并着重介绍了适应这个模块硬件要求的通信.而选好存贮器布局,设计好总线结构和完全可控的中断系统又是完成这种模块通信的关键.本章着重讨论这个模块在外设方面的功能情况;如果要完成维护方面的功能,还要涉及一定的硬件,如灯驱动器、显示逻辑、主告警盘和架告警等,本书未作介绍,另文中再讨论.由于维护与外设模块的各种外设控制器都接外设总线,因此,磁带机控制器、磁盘控制器和人机控制器都可看成是直
3.1 Overview The first chapter describes the functions of the maintenance and peripheral modules, the second chapter provides a computer layout design, and focuses on the communication to meet the hardware requirements of this module.And choose the memory layout, design the bus structure and complete Controllable interrupt system is the key to complete this module communication.This chapter focuses on the functional aspects of this module in the peripherals; If you want to complete the maintenance functions, but also involves certain hardware, such as lamp drivers, display logic, the main Alarm panel and frame alarm, the book has not been introduced, another discussion in the text.As the maintenance and peripheral modules are connected to a variety of peripheral controller bus, therefore, tape controller, disk controller and man-machine The controller can be regarded as straight