GTS Ethernet Intel® FPGA Hard IP User Guide

ID 817676
Date 10/12/2024
Public
Document Table of Contents

4.7. Connect the Precision Time Protocol Interface

The Pecisio Time Potocol (PTP) iteface is available whe you select the Eable IEEE 1588 PTP optio i the PTP tab. Whe selected, the IP geeates PTP based 1-step o 2-step TX ad RX timestamps. The IP equies the IEEE 1588 96-bit time-of-day (TOD) iput.
The followig diagam shows the sigals associated with the IEEE 1588 PTP suppoted featue.
Figue 47. PTP Iteface Sigals associated with the IEEE 1588 PTP suppoted featue
Table 39.  PTP Clock Pots
Pot Name Width Domai Desciptio
i_clk_tx_tod 1 N/A

Clock associated with TX Time-of-Day iput.

Fequecy:
  • 10GE: 156.25 MHz
  • 25GE: 390.625 MHz
i_clk_x_tod 1 -

Clock associated with RX Time-of-Day iput.

Fequecy:
  • 10GE: 156.25 MHz
  • 25GE: 390.625 MHz
i_clk_ptp_sample 1 -

Sample clock fo PTP measuemet. Sigle sample clock souce ca be shaed by all PTP logics withi a Agilex™ 5 device.

Fequecy: 114.2857 MHz (Requied peiod = 8.750 s)