摘要：本应用笔记介绍了如何使用一个I²C我/ O的扩展到一个紧凑的闪存（CF ）卡连接的I²C的微控制器的接口。用于读取和写入数据的软件命令进行解释。 MAX7311 I / O端口扩展的特点是在设计电路。Maxim > App Notes > Communications Circuits Interface Circuits Memory Keywords: data logging, flash card, I2C interface, 16-bit I/O extender Aug 31, 2009 APPLICATION NOTE 4418 IC Interface Connects Compact Flash Card to Microcontroller By: Fons Janssen Abstract: This application note explains how to use an IC I/O extender to connect a compact-flash (CF) card to the IC interface of a microcontroller. The software commands for reading and writing data are explained. The MAX7311 I/O port extender is featured in the design circuit. This design idea appeared in the September 1, 2006 issue of EDN magazine. Data logging usually requires considerable memory for storing the measured data, especially when the number of monitored channels is large. As a furthe……