SEMICONDUCTOR DEVICE COMPRISING FLASH MEMORY AND ADDRESS MAPPING METHOD THEREOF

摘要

PURPOSE: A semiconductor device and an address mapping method thereof are provided to efficiently allocate storage space between dissimilar log types by changing a log block to one log block according to a log type. CONSTITUTION: A log type decision part(110) selects one among a first log type and a second log type which are dissimilar type according to the request of a processor of a semiconductor device. A first type log part(120) receives and writes a logical address for programming to a flash memory and program data to corresponding block when a control signal is selected to a first log type. A second type log part(130) receives and writes a logical address for programming to a flash memory and program data when a control signal is selected to a second log type. A merge part(140) changes a log block which is included in a log part among a first type log part and a second type log part to the log block of a different log part in response to the conversion request included in a control signal.