第二版的IEEE1588协议（即PTP协议）的英文 PDF.欢迎下载。-IEEE Standard for a Precision Clock Synchronization Protocol for Networked Measurement and Control Systems（IEEE 1588 V2 PDF format）

IEEE-1588™ STANDARD FOR A PRECISION CLOCK SYNCHRONIZATION PROTOCOL FOR NETWORKED MEASUREMENT AND CONTROL SYSTEMS-IEEE-1588

IEEE 1588 PTP 硬件支持功能的以太网收发器，时钟精确性能表现非凡无论选用何种微控制器、FPGA或ASIC，DP83640的加入都可确保系统设计的高度灵活性，并实现高达8ns的精确度-IEEE 1588 PTP hardware support Ethernet transceivers, clock accurate performance, whether extraordinary selection of the microcontroller, FPGA or ASIC, D