Method for managing data stored in flash memory and associated memory device and controller

A memory apparatus, comprising:

• a flash memory, comprising a plurality of blocks;
• and
• a controller, comprising a memory for storing a program list, wherein the program list records information about programmed blocks of the plurality of blocks and sequence of write times of the programmed blocks;
• wherein the controller determines a first block of the plurality of blocks by directly using the program list stored within the memory of the controller, wherein the first block is a programmed block that has an earliest write time in the program list, and the first block is a starting block for a quality detection operation;
• the controller starts the quality detection operation to read the first block to detect quality of the first block to generate a first detection result;
• and the controller refers to the first detection result to determine whether to move contents of the first block to a third block and delete the contents of the first block.

A controller for accessing a flash memory, wherein the flash memory comprises a plurality of blocks;

• the controller comprising:
• a memory, arranged for storing a program code and a program list, wherein the program list records information about programmed blocks of the plurality of blocks and sequence of write times of the programmed blocks;
• and
• a micro processor, arranged for executing the program code to control access of the flash memory and manage the plurality of blocks;
• wherein the micro processor determines a first block of the plurality of blocks by directly using the program list stored within the memory of the controller, wherein the first block is a programmed block that has an earliest write time in the program list, and the first block is a starting block for a quality detection operation;
• the micro processor starts the quality detection operation to read the first block to detect quality of the first block to generate a first detection result;
• and the micro processor refers to the first detection result to determine whether to move contents of the first block to a third block and delete the contents of the first block.