Keil Logo

USB Interface

The MCB1800 board supports USB-A and USB-microAB connectors for both USB device, host and OTG operation.

  • USB Device: In this mode, via either microAB connectors P2 or P4, a USB A to microB cable may used to connect to a PC. The board may be powered through this USB interface.
  • USB Host: In this mode, the USB A connector may be used to connect to a USB device such as a USB memory stick. In USB Host mode, the board must be powered by an external 8-12V power adapter to guarantee a stable power supply of the connected USB device.
  • USB OTG: In this mode, a Micro A USB cable is used to connect to another USB OTG device. In USB OTG mode, the board must be powered by an external 8-12V power adapter to guarantee a stable power supply not only for the connected USB OTG device, but also for the board itself. Although the USB specification for USB OTG only requires that 8 mA of current be supplied, this is well below the power required to operate the board.

VBUS power controlled with an LM352M-H (IC5), which provides, over-current, short circuit and over-temperature fault protection. Additionally, the USB A and microAB connectors are protected by ESD protection circuits D5 and D6.

MCB1800 USB Connector

  Arm logo
Important information

This site uses cookies to store information on your computer. By continuing to use our site, you consent to our cookies.

Change Settings

Privacy Policy Update

Arm’s Privacy Policy has been updated. By continuing to use our site, you consent to Arm’s Privacy Policy. Please review our Privacy Policy to learn more about our collection, use and transfers
of your data.