Introduction
Cypress EZ-USB FX3 is a USB 3.0 peripheral controller with highly integrated and flexible features that add USB 3.0 functionality to any system.
With the release of the USB 3.0 specification, USB controller chips required rearchitecting to handle the ten-fold increase in USB bandwidth over the USB 2.0 specification. Cypress offers USB controllers for applications based on USB 2.0 (EZ-USB® FX2LP™) and USB 3.0 (EZ-USB FX3™). This application note describes the implementation differences between the two controllers. Example applications highlight those differences at the architectural, hardware, and firmware framework levels. While this application note emphasizes the new FX3 features, it provides links to FX2LP background materials.