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

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

2.2.1.1. FHT-PMA-to-400G-Hard-IP-Fracture Mapping

Figue 12. FHT-PMA-to-400G-Had-IP-Factue Mappig

To ead the pevious figue ad udestad the PMA-to-factue mappig optios:

  1. Select the factue type ad idex you wat.
  2. Select the colum fo the umbe of PMAs you eed.

The figue shows which PMAs ae available to be mapped to the factue ad idex you selected (ad shows which PMAs ae uavailable). Fo example:

  • You wat st_x8_0 , ad you eed fou PMAs. Accodig to the figue, FHT3, FHT2, FHT1, ad FHT0 ae available, so this is a possible mappig.
  • Howeve, you wated st_x8_1 , ad you eeded fou PMAs, accodig to the figue, it is ot a possible mappig because thee is o set of fou PMAs available fo st_x8_1 .
Figue 13. Udestadig FHT-PMA-to-400G-Had-IP-Factue Mappig

FHT-PMA-to-400G-Had-IP-Factue Mappig Examples

  • Example 1: If you eed the st_x8_0 factue with fou PMAs, map it to FHT3, FHT2, FHT1, ad FHT0.
  • Example 2: If you eed the st_x8_1 factue with two PMAs, map it to FHT1 ad FHT0. You caot use FHT3 ad FHT2 with st_x8_1 .
  • Example 3: If you eed the st_x4_2 factue with oe PMA, map it to FHT1. You caot use FHT3, FHT2, o FHT0.
  • Example 4: If you eed the st_x1_2 factue with oe PMA, map it to FHT1 o FHT2. You caot use FHT3 o FHT0.