Removable electronic device and method thereof

摘要

A removable electronic device includes a detector for detecting a mode of operation to distinguish among a multimedia card (MMC) compatible mode, a universal serial bus (USB) compatible mode, and a Mu mode, a wrapper for converting data for transfer between the USB compatible mode and the Mu mode, a USB physical layer circuit for transferring data compatible with the USB compatible mode, a USB compatible device controller for controlling data transfer in the USB compatible mode, and an MMC compatible device controller for controlling data transfer in the MMC compatible mode.