USB Device

Universal Serial Bus (USB) Devices are peripherals attached to a USB Host. Using the USB protocol, devices provide functionality to the end-user. Typical devices include products such as keyboards, mice, medical devices and thumb-drives.

Devices are implemented by adding both software and hardware to a peripheral's design.

Device Hardware

  • Contains the circuitry to serialize and deserialize all communications with the Host.
  • Notifies the Host of its presence and speed requirements
  • Generates CRC when needed.
  • Supplies the memory (or registers) for the endpoints

Device Software

  • Responds to all Host communication requests
  • During enumeration informs the Host regarding communication requirements of the Device.
  • Provides communication APIs for the Device's application programmers.

 Learn More

How does USB work?
Learn more >
What do I need to add USB to a design?
Learn more >
USB Speeds and Specifications
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