Implementation of a General Ethernet Interface for Embedded System
In this paper, a design and implementation scheme of a general Ethernet interface for embedded system is proposed based on ARM7 that uses RISC technology and RTL-8019 NIC (network interface controller) hardware platform. The design aims at the characteristics that the embedded system only has limited resources and reduced any unnecessary operation process. The logic structure, operation principle and DMA controller data sending and receiving principles of RTL-8019 NIC and Ethernet frame encapsulation course have been explained in detail. The registers programming process for realizing NIC initialization, operation of local/remote DMA controller and Ethernet frame sending and receiving have been deeply discussed, providing a completed implementation scheme of sending and receiving an Ethernet frame.
NIC embedded system Ethernet DMA
MA Ximin FU Chong
Computer Department Liaoning Economic Vocational Technological Institute Shenyang 110036, P.R.China School of Information Science and Engineering Northeastern University Shenyang 110004, P.R.China
国际会议
厦门
英文
750-754
2006-07-27（万方平台首次上网日期，不代表论文的发表时间）