I^2C串行总线在单片机8031应用系统中的设计与实现

The Design and Implementation of I^2C Serial Bus in Microcontroller 8031 Applied System

目前,MCS51系列、ATMEL89系列、68HC05历系列等单片机应用很广，但他们均没有I2C总线接口，限制了在这些系统中使用具有I2C总线接口器件的应用。本文将介绍I2C串行总线的性能，并以串行E2PROM为例，给出在8031上利用I/O线实现I2C串行总线的方法和软件设计。

At present, microcontroller of MCS51, ATMEL89,68HC05 series were applied widely, but they have no interface for I2C bus, the application of device for I2C bus interface in these system was litheted. The feature for I2C serial bus is introduced, and taking the serial E2PROM example,methodology and software design Of achieve I2C serial bus to utilize I/O of 8031 were given.