The Research And Design Of High-speed Serial I/O Codec With Error Correction

High-speed serial I/0 codec is an important components of high-speed serial data transmission system.In embedded systems,local area network and wide area networks,and other areas of data transmission,high-speed serial data transmission system applications become increasingly popular.So,the research of high-speed serial data transmission system has become a hot research field of global communications.This paper introduces the current high-speed serial data transmission codec technology development status,as well as the development process of error correction coding techniques.Then in the field of high-speed serial data transmission,the coding principle of 8b/10b line code further explores.Secondly,the XAUI interface for high-speed serial data transmission is discussed.And the transmission control protocol of XAUI interface is are described in detail.Finally, the principle of the BCH error-correcting codes is discussed,and the construction method of BCH product codes is introduced.Based on the above principle, this paper proposed a design of codec for high-speed serial data transmission.Two-stage structure is used in the codec,the first stage is the BCH product codes codec is used for error correction,the second stage is a codec used for encoding and decoding 8b/10b code and controlling XAUI interface protocol. The codec using error correction technology will reduce the error rate in data transmission, and improve transmission performance. The whole codec can be run in different mode by user selection. Mode one is the use of error correction coding and decoding module,and mode two is not using error correction coding and decoding module.Simulation results that VCS simulation software generates show that high-speed serial I/O codec meets the requirements.