本文讨论了 Z—80微型计算机并行接口(PIO)与多字节模/数转换器输出之间通道的设计问题,并给出了实现的线路和用 Z—80汇编语言编写的数据输入程序。这种线路适合在以 Z—80微型计算机为基础的高精度、实时控制和实时数据处理系统中做输入接口 This article discusses the design of the channel between the Z-80 Microcomputer Parallel Interface (PIO) and the multibyte A / D converter output and gives the lines and data entry routines written in Z-80 assembly language. This line is suitable for use as an input interface in high-precision, real-time control and real-time data processing systems based on the Z-80 microcomputer