Emergency file protection system for electronic devices

A computer readable medium storing a computer program product for completing critical write functions to a non-volatile memory (NVM) system within an electronic device upon experiencing a sudden or unexpected loss of the main power to the electronic device, the computer readable medium comprising:

• computer program code for detecting a sudden loss of power within the main external power supply;
• computer program code for determining if the loss of power within the main external power supply crosses a minimum threshold level and when it does:
• computer program code for generating an interrupt to prevent new write requests;
• computer program code for switching to a short term reserve internal power source;
• and
• computer program code for completing the NVM write function in progress at the time of the power loss.

A system for completing critical write functions to a non-volatile memory (NVM) system within an electronic device upon experiencing a sudden or unexpected loss of the main power to the electronic device, the system comprising:

• a processor for controlling the operation of the wireless device;
• a low power detection circuit for detecting when a main external power source dips below threshold level;
• a short term reserve power source for providing power to the processor and NVM system to complete a write operation when the main external power source dips below the threshold level;
• and
• a non-volatile memory system, wherein
• an interrupt is generated when the main external power source dips below the threshold level to prevent additional write requests from occurring;
• and
• an existing write operation is completed using power from the short term reserve power source.