This article illustrates method of generating flexible READY signal, LCD_CSl/2 signal, LCDRD signal and LCDWE signal by using CPLD in DSP system. Thus it realizes direct connection of DSP and LCM that is compatible with 8080 times.

• 本文介绍基于数字信号处理器(DSP)平台,利用可编程逻辑器件(CPLD)产生可动态配置的等待状态发生信号(READY信号)、片选信号(LCD-CS1/2)以及读写信号(LCDRD、LCDWE) 的方法,以实现DSP与8080时序兼容的液晶显示模块的直接连接。