Intel® Stratix® 10 High-Speed LVDS I/O User Guide

ID 683792
Date 11/30/2022
Document Table of Contents

2.3. SERDES Circuitry

Each LVDS I/O channel in Intel® Stratix® 10 devices has built-in serializer/deserializer (SERDES) circuitry that supports high-speed LVDS interfaces. You can configure the SERDES circuitry to support source-synchronous communication protocols such as RapidIO®, XSBI, serial peripheral interface (SPI), and asynchronous protocols.
Figure 5. SERDESThis figure shows a transmitter and receiver block diagram for the LVDS SERDES circuitry with the interface signals of the transmitter and receiver data paths. The figure shows a shared PLL between the transmitter and receiver. If the transmitter and receiver do not share the same PLL, you require two I/O PLLs. In single data rate (SDR) and double data rate (DDR) modes, the data widths are 1 and 2 bits, respectively.

The LVDS SERDES Intel® FPGA IP transmitter and receiver require various clock and load enable signals from an I/O PLL. The Intel® Quartus® Prime software configures the PLL settings automatically. The software is also responsible for generating the various clock and load enable signals based on the input reference clock and selected data rate.

Note: For the maximum data rate supported by the Intel® Stratix® 10 devices, refer to the device datasheet.