CONTROLLER CONFIGURED TO CONTROL NONVOLATILE MEMORY DEVICE AND OPERATING METHOD OF CONTROLLER

摘要

The present invention relates to a method for operating a controller. The operation method of the present invention comprises the steps of: selecting bits of code to be punctured; detecting locations of incapable bits of an input word based on locations of the bits to be punctured and a structure of a generation matrix calculation unit; refreezing the input word for frozen bits and the incapable bits of the input word to overlap; generating input word bits by replacing information word bits with the frozen bits based on the refreezing result; generating code word bits by performing generation matrix on the input word bits; generating output bits by puncturing the code word bits based on locations of the bits to be punctured; and transmitting the output bits to a non-volatile memory device.