H-Tile Hard IP Ethernet Intel® FPGA IP User Guide: Stratix® 10 Devices

ID 683430
Date 4/09/2024
Public
Document Table of Contents

B.3.5. IPG Words to remove per Alignment Marker Period

Offset: 0x406

IPG Words to remove per Alignment Marker Period Fields

Bit Name Description Access Reset
15:0 ipg_col_rem IPG_COL_REM

16b value that sets the number of IPG words that can be removed during an alignment marker period for a fully occupied link to make space for alignment markers. This parameter can also be used to scale IPG in ppm increments for rate balance.

  • After power-on, ipg_col_rem is set to 16'd20
  • After i_cfg_rst_n, ipg_col_rem is set to the standard value required for the selected line rate, plus the value of the module parameter ipg_removed_per_am_period.
RW 0x14