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

The paper introduces the concept of IEEE 1588 synchronization mechanisms and explains then in more detail how PTP was enhanced, e.g. by Transparent Clock (TC), peer-to-peer delay measurement, unicast operation, pure layer 2 operation,enhanced accurac