串行链路通信技术能够减少大规模系统互连的复杂性 ,提高互连网络的系统带宽。由于串行链路没有提供统一时钟采样数据 ,因此数据及同步信息的提取是其关键技术。本文针对数据提取问题对三种已有的实现方法进行了分析 ,并提出了一种无需调整时钟相位的收端直接选择法。该方法逻辑简洁 ,工程实现容易 Serial link communications technologies reduce the complexity of large-scale system interconnects and increase the system bandwidth of interconnected networks. As the serial link does not provide a unified clock sampling data, so the extraction of data and synchronization information is the key technology. In this paper, three existing methods for data extraction are analyzed, and a direct approach to receive end without clock phase adjustment is proposed. The method is simple in logic and easy to implement