Nucleus Embedded OS Support

An Integrated USB Solution for Nucleus-based USB peripherals

MCCI® Nucleus RTOS embedded operating system support package provides compatibility, performance, flexibility, and stability to the designer of Nucleus based USB devices.

The technology integrates the MCCI USB DataPump® with Nucleus. It supports a large number of USB device controllers and virtually any CPU that is supported by Nucleus, allowing OEMs a simple integration path to a USB-IF certified USB 1.1 stack.

When the DataPump is combined with MCCI Catena® and the Nucleus support for µiTRON API, this package also creates an excellent platform for developing µiTRON-based platforms.

Use of the MCCI USB DataPump with Nucleus

Block diagram of using DataPump in an embedded system with Nucleus

Compatibility and reliability are assured by MCCI’s experience since 1997 in supplying this technology for a wide range of USB devices. MCCI’s leading role in the USB standards community resulted in firmware that implements not only the letter but the spirit of the USB standards underlying advanced communication.


Operating systems Nucleus
Microcontroller or CPU Any supported by Nucleus
API No specific API at this level
Technical Documentation Functional Specification.
Basic Delivery Format C-source
Support MCCI supports its direct customers via telephone and email. Resellers or manufacturers of products incorporating MCCI technology are responsible for supporting their own customers.
Supported MCCI Device Class Modules
  • Audio Class 1.0
  • Still Image Class
  • Video Class 1.1
  • Mass Storage Bulk-Only Transport
  • Human Interface Device (HID) 1.1
  • Device Firmware Update (DFU) 1.1, for firmware update over USB
  • CDC (Communications Device Class) 1.1 Wireless Mobile Communication subclass (WMC) for multi-function 2.5G and 3G handsets
  • CDC 1.1 WMC Abstract Control Model (ACM), for traditional modems and modem emulation (more info)
  • CDC 1.1 WMC Device Management
  • CDC 1.1 WMC OBEX (Object Exchange)
  • CDC 1.1 Ethernet Control Model (ECM), for Ethernet-like networking (more info)
  • MCPC GL-004/005 for multi-function 2.5G and 3G cell-phone handsets
  • Microsoft Remote NDIS (RNDIS), for Ethernet-like networking devices, targeting PCs running Windows
  • MCCI Virtual Serial Port (VSP), for migrating RS-232 devices to USB (more info)
  • MCCI Loopback, for test and performance evaluation
  • Networking Control Model (NCM)

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