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汉字信息处理机是由汉字显示器(带有光笔和键盘)、汉字库、软盘和MC6800微处理机构成,为与苏州胜利机械厂生产的汉字针式打印机(简称苏州针打)相连,设计了一块接口板(简称JK板)。该接口板的设计是用于控制苏州针打并兼用于控制日本东芝的TH-2100M汉字打印机(简称日本针打)。为说明JK板的设计思想,首先介绍一下这两种打印机接口信号功能及有关控制要求。一、苏州针打和日本针打的性能概述 1.苏州针打苏州针打控制器较简单,它的接口只配有供接收一列信息的三个八位接口寄存器,每接
Chinese information processor is composed of Chinese display (with light pen and keyboard), Chinese character library, floppy disk and MC6800 microprocessor for the production of the Suzhou Shengli Machinery Co., Ltd. Chinese pin printer (referred to as Suzhou needle fight), designed a piece Interface board (referred to as JK board). The design of the interface board is used to control Suzhou acupuncture and also used to control the Japanese Toshiba TH-2100M printer (referred to as the Japanese pin fight). JK board to illustrate the design idea, first introduce the two printer interface signal functions and related control requirements. First, Suzhou needle hit and Japan pin performance summary 1. Suzhou needle hit Suzhou pin hit controller is relatively simple, its interface is only equipped with three eight-bit interface for receiving a message register, each