DECODING METHOD, MEMORY STORAGE DEVICE AND MEMORY CONTROL CIRCUIT UNIT

摘要

A decoding method, a memory storage device and a memory control circuit unit are provided. The decoding method includes: sending a read command sequence for reading multiple memory cells so as to obtain multiple first bits; determining whether the first bits have a first error; if the first bits have the first error, executing a first iteration decoding procedure on the first bits so as to obtain multiple second bits, and recording first bit flipping information of the first iteration decoding procedure; determining whether the second bits have a second error; and If the second bits have the at least one second error, executing a second iteration decoding procedure on the second bits according to the first bit flipping information so as to obtain multiple third bits.

主权项

1. A decoding method, for a rewritable non-volatile memory module comprising a plurality of memory cells, the decoding method comprising:
sending a read command sequence for reading the plurality of memory cells so as to obtain a plurality of first bits; determining whether the first bits have at least one first error; if the first bits have the at least one first error, executing a first iteration decoding procedure on the first bits so as to obtain a plurality of second bits, and recording first bit flipping information of the first iteration decoding procedure; determining whether the second bits have at least one second error; if the second bits have the at least one second error, executing a second iteration decoding procedure on the second bits according to the first bit flipping information so as to obtain a plurality of third bits; and if the second bits do not have the at least one second error, outputting the second bits.