GTS Transceiver PHY User Guide

ID 817660
Date 10/07/2024
Public
Document Table of Contents

4.5.1. Example Flow to Indicate System PLL Reference Clock is Ready

The followig steps idicate that the system PLL efeece clock is eady.

If efeece clock is eady befoe device cofiguatio:
  1. Tie i_efclk_eady pi to high.
If efeece clock is ot eady befoe device cofiguatio:
  1. Wait util the system PLL's efeece clock is available ad stable.
  2. Set i_efclk_eady pi to high.
Note: Fo PCIe* you must select oe of the PCIe* modes i the GTS System PLL Clocks Itel FPGA IP. Whe you select PCIe* mode, the i_efclk_eady pot is ot available. You must make sue that the efeece clock to the system PLL is available ad stable befoe device cofiguatio.