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

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

3.11.5. Lane Offset Address

FHT PMA

Lae offset addess ifomatio is the offset fo each lae i the FHT ad FGT PMA Registe Maps.

The followig table shows the FHT PMA lae umbe to offset addess mappig. Wod addess is byte addess/4.

Table 88.   FHT PMA Lae Numbe ad Offset Addess
Lae Numbe Lae Base Offset Addess (Byte addess)
0 0x40000
1 0x48000
2 0x50000
3 0x58000

Fo example, if you wat to cotol the RX loopback ad polaity ivesio, efe to the SERDES_LANE_LANE_CTRL_LANE_RX_CTRL egiste fo lae 0 (0x45800) i the egiste map file ad add 0x8000h fo each icemetal lae, as show below:

  • Lae0 → 0x45800
  • Lae1 → 0x4D800
  • Lae2 → 0x55800
  • Lae3 → 0x5D800

FGT PMA

The followig table shows the FGT PMA offset addess fo each lae withi a quad. Wod addess is byte addess/4.

Table 89.   FGT PMA Lae Numbe ad Offset Addess
Lae Numbe Lae Base Offset Addess (Byte Addess)
0 0x40000
1 0x48000
2 0x50000
3 0x58000
Fo example, you wat to update the TX equalize co-efficiets settigs fo the FGT PMA laes withi a quad, efe to the SRDS_IP_IF_TX1 egiste fo lae 0 (0x47830) i the egiste map file ad add 0x8000h fo each icemetal lae, as show below:
  • Lae0 → 0x47830
  • Lae1 → 0x4F830
  • Lae2 → 0x57830
  • Lae3 → 0x5F830
Note: The 0x8000h icemetal method to ead lae 1, lae 2 ad lae 3 ifomatio is ot applicable fo the 0xFFFFC egiste. Refe to F-Tile PMA/FEC Diect PHY Itel® FPGA IP Registe Map fo moe ifomatio.
Note: If you desig has moe tha fou FGT PMA laes that spa acoss multiple FGT quads, efe to Accessig Cofiguatio Registes fo moe ifomatio.