AN57294 - USB 101: An Introduction to Universal Serial Bus 2.0 | Cypress Semiconductor
AN57294 - USB 101: An Introduction to Universal Serial Bus 2.0
USB is an interface that connects a device to a computer. With this connection, the computer sends or retrieves data from the device. USB gives developers a standard interface to use in many different types of applications. A USB device is easy to connect and use because of a systematic design process.