Research and Implementation of Embedded Interface of Ethernet

Combination with the present application of Ethernet in embedded field,this paper introduced a design of Ethernet interface in embedded system based on C8051F020 single chip and the single-chip Ethernet controller CP2200.It adopted the TCP/IP for the protocol stack of Ethernet controller CP220X,achieved the communications of Ethernet.This paper illuminated the notion of designer and the design of the interface circuitin in detail,analyzed the pivotal problems chiefly,which like the setting of the WDT,the reset timing of the interface circuit,the transmission of data on net and the real-time of Ethernet.The application of the interface designed is very comprehensive,with the requirement of condition;the interface can be connected with any embedded equipment.