Cortex-M3 USB microcontrollers

3 February 2010 DSP, Micros & Memory

The LPC1340 series is NXP Semiconductors’ new range of microcontrollers with full-speed USB 2.0 device connectivity enabled by on-chip USB drivers certified by USB-IF. The LPC1340 is supported by VDE IEC 60335 Class B test libraries to support customers in the Class B certification process.

The USB 2.0 device controller is fully certified and supports all four transfer types including isochronous transfer which is a key requirement for USB-based audio applications. Double buffering is supported on both isochronous and bulk end-points. The on-chip USB drivers support both the mass storage class (MSC) and human interface device (HID) class. Furthermore, these drivers are incorporated in ROM, saving customers approximately 5 to 6 KBytes of user code. ROM-based firmware drivers offer the dual advantage of low-power operation as well as secure and safe boot loading via USB or other on-chip serial channels. The LPC1340 series is enumerated and recognised by any Windows or Linux PC as a mass storage device. Flash programming is enabled by a simple drag-and-drop action.

For more information contact Dennis Walden, Avnet Kopp, +27 (0)11 809 6100, [email protected], www.avnet.co.za

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