Memory access module for performing a plurality of sensing operations to generate digital values of a storage cell in order to perform decoding of the storage cell

A Flash memory access module for performing memory access management of a Flash storage device comprising a plurality of storage cells, the Flash memory access module comprising:

• a read only memory for storing a program code;
• and
• a microprocessor, coupled to the read only memory, for executing the program code to perform the following steps:
• performing a first sensing operation corresponding to a first sensing voltage and performing at least a second sensing operation corresponding to a second sensing voltage to respectively generate a first digital value of a Flash cell of a Flash memory and a second digital value of the Flash cell of the Flash memory;
• using the first digital value, the second digital value, and charge distribution statistics information of the Flash memory to obtain soft information of a bit stored in the Flash cell, wherein the soft information corresponds to a threshold voltage of the Flash cell;
• and
• using the soft information to perform soft decoding.