Configurable serial memory interface

A configurable serial interface for a mobile communications device is provided to access audio information (e.g., audio files) stored on a removable memory device. In normal operation, the mobile communications device accesses audio information stored on the removable memory source through a conventional serial interface located in the digital application processor and/or directly interfaced with the main processing device. The interface is configurable to change to a second interface (e.g., Serial Low-power Interconnect for Media or SLIMbus (SLIMbus)) after receiving a command to change the interface. The second interface generally utilizes significantly less power than the first interface because the main processing device is not utilized to convert the digital audio files stored on the removable memory device. Control of the first and/or second interface may be maintained by a control circuit used for controlling the main processing device.