Data moving method for flash memory module, and memory controller and memory storage apparatus using the same

A memory controller for controlling a flash memory module, wherein the flash memory module have a plurality of physical pages and a first buffer area, a capacity of the first buffer area is equal to a capacity of each of the physical pages, the memory controller comprising:

• a host interface, configured to be coupled to a host system;
• a memory interface, configured to be coupled to the flash memory module;
• a buffer memory;
• and
• a memory management circuit, coupled to the buffer memory, the host interface, and the memory interface and configured to move first page data stored in the flash memory module to a first physical page among the physical pages,
• wherein the first page data has a first portion of data and a second portion of data, the first portion of data is stored in a second physical page among the physical pages, the second portion of data is stored in a third physical page among the physical pages,
• wherein the memory management circuit transmits a first read command for reading page data stored in the second physical page to the flash memory module,
• wherein the flash memory module reads the page data stored in the second physical page into the first buffer area of the flash memory module in response to the first read command,
• wherein the memory management circuit reads the first portion of data of the first page data from the first buffer area into the buffer memory,
• wherein the memory management circuit transmits a second read command for reading page data stored in the third physical page to the flash memory module,
• wherein the flash memory module reads the page data stored in the third physical page into the first buffer area of the flash memory module in response to the second read command,
• wherein the memory management circuit transmits the first portion of data of the first page data from the buffer memory to the first buffer area,
• wherein the memory management circuit transmits a write command for writing the first page data stored in the first buffer area into the first physical page to the flash memory module.

A memory storage apparatus comprising:

• a flash memory module, having a plurality of physical pages and a first buffer area, wherein a capacity of the first buffer area is equal to a capacity of each of the physical pages;
• a connector, configured to be coupled to a host system;
• a memory controller, having a buffer memory and coupled to the flash memory module and the connector,
• wherein the memory controller is configured to move first page data stored in the flash memory module to a first physical page among the physical pages,
• wherein the first page data has a first portion of data and a second portion of data, the first portion of data is stored in a second physical page among the physical pages, and the second portion of data is stored in a third physical page among the physical pages,
• wherein the memory controller transmits a first read command for reading page data stored in the second physical page to the flash memory module,
• wherein the flash memory module reads the page data stored in the second physical page into the first buffer area of the flash memory module in response to the first read command,
• wherein the memory controller reads the first portion of data of the first page data from the first buffer area into the buffer memory,
• wherein the memory controller transmits a second read command for reading page data stored in the third physical page to the flash memory module,
• wherein the flash memory module reads the page data stored in the third physical page and writes the page data into the first buffer area of the flash memory module in response to the second read command,
• wherein the memory controller transmits the first portion of data of the first page data from the buffer memory to the first buffer area,
• wherein the memory controller transmits a write command for writing the first page data stored in the first buffer area into the first physical page to the flash memory module.