F-Tile Serial Lite IV Intel® FPGA IP User Guide

ID 683074
Date 11/16/2021
Public

A newer version of this document is available. Customers should click here to go to the newest version.

Document Table of Contents
Give Feedback

5. Parameters

Table 18.   F-Tile Serial Lite IV Intel® FPGA IP Parameter Description
Parameter Value Default Description
General Design Options
Transceiver Mode
  • PAM4
  • NRZ
PAM4 Select the PCS modulation mode.
Transceiver Type
  • FHT
  • FGT
FGT Selects the transceiver type.
Direction
  • Duplex
  • Tx
  • Rx
Duplex For FHT transceiver type, the supported direction is duplex only. For FGT transceiver type, the supported direction is Duplex, Tx, and Rx.
Number of lanes
  • For PAM4 mode:
    • 1 to 12
  • For NRZ mode:
    • 1 to 16
2 Select the number of lanes. For simplex design, the supported number of lanes is 1.
Transceiver reference clock frequency
  • For FHT transceiver type: 156.25 MHz
  • For FGT transceiver type: 27.5 MHz379.84375 MHz, depending on the selected transceiver data rate.
  • For FHT transceiver type: 156.25 MHz
  • For FGT transceiver type: 165 MHz
Specifies the reference clock frequency of the transceiver.
User Interface
Enable Auto Alignment

Enable

Disable

Disable Turn on to enable automatic lane alignment feature.
Enable RSFEC

Enable

Disable

Enable Turn on to enable the RS-FEC feature.

For PAM4 PCS modulation mode, RS-FEC is always enabled.

Enable CRC

Enable

Disable

Disable Turn on to enable CRC error detection and correction.
Alignment Period 128 – 65536 128 Specifies the alignment marker period.

The value must be x2.

Streaming Mode
  • Full
  • Basic
Full Select the data streaming for the IP.

Full: This mode sends a start-of-packet and end-of-packet cycle within a frame.

Basic: This is a pure streaming mode where data is sent without a start-of-packet, empty, and end-of-packet to increase bandwidth.

Transceiver data rate
  • For PAM4 mode:
    • FGT transceiver type: 20 Gbps58 Gbps
    • FHT transceiver type: 56.1 Gbps
  • For NRZ mode:
    • FGT transceiver type: 10 Gbps28.05 Gbps
    • FHT transceiver type: 28.05 Gbps

56.1 (FGT/FHT PAM4)

28.05 Gbps (FGT/FHT NRZ)

Specifies the effective data rate at the output of the transceiver incorporating transmission and other overheads. The value is calculated by the IP by rounding up to 1 decimal place in Gbps unit.
Simplex Merging (This parameter setting is only available when you select dual simplex design in NRZ mode.)
RSFEC enabled on the other Serial Lite IV Simplex IP placed at the same FGT channel(s)

Enable

Disable

Disable

Turn on this option if you require a mixture of configuration with RS-FEC enabled and disabled for the F-Tile Serial Lite IV Intel FPGA IP in a dual simplex design for NRZ transceiver mode, where both TX and RX are placed on the same channel.