摘要
研究了8B/10B编码的编码原理以及其内在特性。同时结合8B/10B编码的主要特点分析了其对PCIE等高速串行总线数据传输特性的影响。分析了利用编码的不一致性检测数据传输中的任意单个错误,并通过CRC校验提高系统的多错误纠检错能力。通过仿真PCIE于2.5Gb/s的时钟下传输不同类型的数据来分析8B/10B编码利用DC平衡特点,解决AC耦合工作模式下低频数据失真与传输速度之间的矛盾。
The paper discusses the coding theory and features of 8B/10B code, analyzes the main features used in PCIE specification. And with the code＇s disparity, the signal error in data transmission is analyzed, and the system＇s ability for checking and correcting multi-errors improved. With the simulation for transferring different kinds of data for PCIE in 2.5Gb/s clock, the paper analyzes how to solve the contradictions between the low-frequency data distortion and the transmission speed with the 8B/10B code＇s DC balance feature.
出处
《信息安全与通信保密》
2011年第3期41-43,共3页
Information Security and Communications Privacy
