Ethernet Design Example Components User Guide

ID 683044
Date 12/13/2021

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2. Time-of-day Synchronizer

The Time-of-day (TOD) Synchronizer provides an accurate synchronization between the time of day of a master TOD clock and a slave TOD clock. This component can synchronize the following combination of master and slave TOD clocks:
  • Master and slave TOD clocks that operate at the same frequency, between 125 MHz and 390.625 MHz. The synchronizer also supports different clock phases and PPM.
  • Master and slave TOD clocks that operate at different frequencies: 62.5 MHz, 125 MHz, 156.25 MHz, 312.5 MHz, 390.625 MHz, or 402.83 MHz.

You can instantiate the TOD synchronizer through the Ethernet IEEE 1588 TOD Synchronizer Intel® FPGA IP in the Intel® Quartus® Prime software.