【摘要】 介绍计算机并行口的几种工作模式和工作时序 ,给出了基于 EPP模式的数据传输接口电路及设置读写测试程序。接口电路采用单片大规模可编程逻辑器件加以实现 ,可用于该模式下的高速数据传输 ,并可根据具体的应用系统灵活改变配置 ,具有较强的通用性更多还原

【Abstract】 Several work modes and cycles of PC’s parallel prot are introduced and an universal EPP(Enhanced Parallel Port) interface circuit is designed with ispLSI device in this paper. It sustains bi directional data transfers, all design is very simple on single chip and has preferable universal performance.更多还原