Removable electronic device and method thereof

A removable electronic device having an application module for transferring data to or from a host, the device comprising:

• a detector for detecting a mode of operation among a plurality of modes of operations, including at least a Mu mode and a first mode of operations;
• a wrapper for converting the data to transfer between the first mode and the Mu mode;
• a circuit to transfer the data compatible with the first mode of operation;
• and
• a compatible device controller to control data transfer in the first mode.

A method for a removable electronic device to detect a mode of operation to distinguish among a multimedia card (MMC) compatible mode, a universal serial bus (USB) compatible mode and a Mu mode, comprising:

• determining whether a power source voltage is greater than a predetermined voltage level;
• assessing the USB compatible mode when the power source voltage is greater than the predetermined voltage level;
• receiving a command signal sent from a host;
• determining whether the command signal corresponds to a Mu format;
• and
• assessing the Mu mode operation when the command signal corresponds to the Mu format or otherwise assessing the MMC compatible mode.

A method for a removable electronic device to detect a mode of operation to distinguish between a multimedia card (MMC) compatible mode and a Mu mode, comprising:

• receiving a command signal sent from a host;
• determining whether the command signal corresponds to a Mu format;
• and
• assessing the Mu mode operation when the command signal corresponds to the Mu format or otherwise assessing the MMC compatible mode.

A method for a device that receives a removable electronic device to detect a mode of operation between at least a multimedia card (MMC) compatible mode and a Mu mode, comprising:

• sending a command signal corresponding to a Mu format after receiving the removable electronic device;
• detecting whether the removable electronic device responds to the command signal;
• assessing that the mode of operation is the MMC compatible mode if the removable electronic device does not respond to the command signal;
• and
• providing a Mu interface if the removable electronic device responds to the command signal.

A method for a device that receives a removable electronic device to detect a Mu mode of operation, comprising:

• receiving a removable electronic device;
• sending a command signal to corresponding to a Mu format to the removable electronic device;
• detecting whether the removable electronic device responds to the command signal;
• and
• providing a Mu interface after the removable electronic device responds to the command signal.

A method for a removable electronic device to detect a mode of operation to distinguish between a first mode of operation and a Mu mode of operation, comprising:

• receiving a command signal sent from a host;
• determining whether the command signal corresponds to a Mu format;
• and
• assessing the Mu mode of operation when the command signal corresponds to the Mu format or otherwise assessing the first mode of operation.

A method for a device that receives a removable electronic device to detect a mode of operation between a first mode of operation and a Mu mode of operation, comprising:

• sending a command signal corresponding to a Mu format after receiving the removable electronic device;
• detecting whether the removable electronic device responds to the command signal;
• assessing that the mode of operation is the first mode of operation if the removable electronic device does not respond to the command signal;
• and
• providing a Mu interface if the removable electronic device responds to the command signal.