3.4.2 USB Host/Device Interface

Universal Serial Bus (USB) is a hot-pluggable general-purpose high-speed I/O standard for computer peripherals. The standard defines connector types, cabling and communication protocols for interconnecting a wide variety of electronic devices. The USB 2.0 Specification defines data transfer rates as high as 480 Mbps (also known as High-Speed USB). A USB host bus connector uses four pins: a power supply pin (5V), a differential pair (D+ and D- pins) and a ground pin.

The SAM9X75 Curiosity Pro board features three USB communication ports named USB-A, USB-B and USB-C®.