METHOD AND APPARATUS FOR PROTECTING DATA OF FLASH MEMORY

摘要

PURPOSE: A method and an apparatus for protecting the data of a flash memory are provided to stably operate a system by preventing damage to a flash memory. CONSTITUTION: In a method and an apparatus for protecting the data of a flash memory, A power detection unit(250) monitors the voltage outputted from a power supply unit. The power detection unit outputs a power failure signal. A programmable logic device(220) outputs a write protection signal. The write protection signal is used for preventing a flash memory(230) from being written. A WP controller(260) outputs the write protection signal to the flash memory.