50G Interlaken Intel® FPGA IP User Guide

ID 683217
Date 10/31/2022
Document Table of Contents

3.5. TX Scrambler Seed

The TX scrambler seed parameter specifies the initial scrambler state.

If a single 50G Interlaken IP Core is configured on your device, you can use the default value of this parameter.

If multiple 50G Interlaken IP Cores are configured on your device, you must use a different initial scrambler state for each IP core to reduce crosstalk. Try to select random values for each 50G Interlaken IP core, such that they have an approximately even mix of ones and zeros and differ from the other scramblers in multiple spread out bit positions.

The default value of this parameter is 58’hdeadbeef123.