F-Tile Architecture and PMA and FEC Direct PHY IP User Guide

ID 683872
Date 11/04/2024
Public
Document Table of Contents

3.8.8. Run-time Reset Sequence—TX + RX

Figue 89. Ru-time Reset Sequece—TX + RX

The figue above illustates the followig u-time TX - RX eset sequece:

  1. Asset tx_eset ad x_eset.
  2. tx_eady ad x_eady deasset, idicatig that datapaths ae o loge opeatioal.
  3. tx_pll_locked (fo FGT PMAs) ad x_is_lockedtodata deasset.
  4. tx_eset_ack ad x_eset_ack asset, idicatig that the datapaths ae fully i eset.
  5. You the deasset tx_eset ad x_eset.
  6. tx_pll_locked assets as the PLL locks to the efeece clock o, i the pesece of a efeece clock, afte appoximately 150 µs, fo FGT PMAs.
  7. x_is_lockedtoef assets as the CDR locks to the efeece clock.
  8. x_is_lockedtoef deassets ad x_is_lockedtodata assets as the CDR locks to the ecoveed data.
  9. tx_eady ad x_eady asset, idicatig that the TX ad RX datapaths ae eady fo use.