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Changing the i.MX31 USB PHY

Posted: 27 May 2010     Print Version  Bookmark and Share

Keywords:i.MX31 USB PHY  interface USB  i.MX31 processor 

Freescale recommends the use of USB PHYs that are included in the i.MX31 PDK. However, some customers have their own preferred transceivers to use in their custom designs. This application note helps to interface the most common USB PHYs with the i.MX31 microprocessor.

The USB On-The-Go (OTG) high speed module contains all the functionality required to support the three independent USB ports that are compatible with the USB 2.0 specification. In addition to the normal USB functionality, the module also provides support for direct connections to the on-board USB peripherals and supports multiple types of interfaces for serial transceivers.

The USB OTG module provides high performance USB OTG functionality which is compliant with the USB 2.0 specification, the OTG supplement, and the ULPI 1.0 Low Pin Count specification.

View the PDF document for more information.

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