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AN75705 - Getting Started with EZ-USB(R) FX3(TM) | Cypress Semiconductor

AN75705 - Getting Started with EZ-USB(R) FX3(TM)

Last Updated: 
Jul 23, 2021

AN75705 gets you started with the Cypress EZ-USB FX3 USB 3.0 device controller. This note highlights key FX3 features and applications while providing signposts along the way to various design resources to help with FX3 development. It also walks you through the steps to get started with FX3 firmware development using free Cypress tools featuring the Eclipse integrated development environment (IDE). Finally, it provides an overview of FX3 software and hardware development kits.


Cypress‘s EZ-USB FX3 (hereafter abbreviated to FX3) is a powerful USB 3.0 peripheral controller, providing integrated and flexible features. FX3 enables developers to add USB 3.0 functionality to their systems.

AN75705 helps you get started with FX3. It highlights the key uses, applications, and features of FX3. A comprehensive list of design resources available from Cypress is also provided. This application note walks you through the steps to get started with USB transfers using the SuperSpeed Explorer Kit (CYUSB3KIT-003) or FX3 Development Kit (CYUSB3KIT-001).

Please refer to the SuperSpeed Code Examples for more examples.

Dear valued customer,

Thank you for choosing our products. They come with all the know-how and passion that our engineers have put into it. As you probably already know, Cypress is now Infineon. This is a major step for our company, but also for the good of you. 

Reliability and business continuity are of utmost importance for us. Hence, we remain fully committed to honoring existing customer and distributor relationships. This includes offering the legacy Cypress product portfolio. We thank you very much for your trusting support.

For the full version of this message, please download the PDF version.

Translated documents are for reference only. We recommend that you refer to the English-language version of a document if you are engaged in development of a design.