100G Interlaken Intel® FPGA IP User Guide

ID 683338
Date 9/20/2022
Public

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3.13. Data Format

The Data format parameter specifies whether the 100G Interlaken IP core opportunistically generates dual segment mode output to the RX user data transfer interface and handles dual segment mode input to the TX user data transfer interface. The supported parameter values are Single segment and Dual segment.

This parameter affects both the RX user data transfer interface and the TX user data transfer interface. The 100G Interlaken IP core can accept dual segment input from the application on the TX user data transfer interface only if you specify the value of Dual segment for the Data format parameter.

The default value of the Data format parameter is Single segment (single segment mode).

Enabling the 100G Interlaken IP core to send dual segment mode output to the RX user data transfer interface improves bandwidth by decreasing idle bytes in outgoing communication. Likewise, enabling the IP core to receive dual segment mode input on the TX user data transfer interface improves system bandwidth by decreasing idle bytes in incoming communication. However, if you turn on this feature, you must ensure your application can process data sent in dual segment format. In addition, enabling dual segment mode configures more complex logic in the IP core, impacting resource utilization.