SPI接口以太网控制器ENC28J60及其应用

Ethernet Controller with SPITM Interface ENC28J60 and Its Application

目前大多数以太网控制器都是为个人计算机而设计的,在精简的嵌入式系统中使用比较繁杂,常常需要采用扩展总线的方式,本文介绍了全球目前最小封装的以太网控制器ENC28J60,由于采用SPI串行接口方式,简化了设计,本文介绍了其特性、内部结构和引脚功能,详细分析了其寄存器设置和工作过程,给出了与微控制器接口的应用电路。

Today, most of the Ethernet controller is designed for personal computer, so its applying is much complicated o The mode of extending bus is often needed. This paper introduces the world＇s smallest package Ethernet controller ENC28J60 at present. Adopting the SPI serial interface mode, so the designing process is predigested. In this paper, it is introduced of the characters, inside structure and PIN function of Ethernet controller ENC28J60. Further more, the paper analyzes the setting of register and process of work in detail and illustrates the application circuit with the interface of MCU.