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AN84868 - Configuring an FPGA Over USB Using Cypress EZ-USB® FX3™ | Cypress Semiconductor

AN84868 - Configuring an FPGA Over USB Using Cypress EZ-USB® FX3™

Last Updated: 
Mar 02, 2021

AN84868 shows you how to configure a Xilinx® FPGA over a slave serial interface using EZ-USB® FX3™, which is the next-generation USB 3.0 peripheral controller.This interface lets you download configuration files into a Xilinx FPGA over USB 2.0 or 3.0. The firmware files with this application note are designed and tested for Xilinx FPGAs, but you can customize them for other FGPAs with a similar interface.


FX3 has a configurable, parallel General Programmable Interface (GPIF II) that can connect to external devices like image sensors, external processors, ASICs, or FPGAs. As a result, users can integrate USB 3.0 capability into almost any system.

In addition, FX3 provides interfaces to connect to serial peripherals, such as UART, SPI, I2C, and I2S.

Please refer to the SuperSpeed Code Examples for more examples.

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