CONTROLLING METHODS AND CONTROLLERS UTILIZED IN FLASH MEMORY DEVICE FOR REFERRING TO DATA COMPRESSION RESULT TO ADJUST ECC PROTECTION CAPABILITY

摘要

A controlling method utilized in a flash memory device includes: compressing first data received from a host to generate second data; generating record data according to the first data and the second data where the record data records error correct coding (ECC) control information at least; executing ECC protection upon specific data selected from the first and second data to generate third data; and writing the third data into the flash memory device.