Data storage devices and data processing methods

A data processing method for a data storage device comprising a memory device and a memory controller, wherein the memory device comprises a plurality of memory blocks, the memory controller is coupled to the memory device and configured to access the memory device, and the method is performed by the memory controller and comprises:

• configuring a first predetermined memory block and a second predetermined memory block as buffers to receive data from a host device;
• and
• determining to use the first predetermined memory block or the second predetermined memory block to receive the data according to one or more write addresses corresponding to a write command received from the host device,
• wherein the step of determining to use the first predetermined memory block or the second predetermined memory block to receive the data according to one or more write addresses corresponding to a write command received from the host device further comprises:
• writing the data to the first predetermined memory block when the one or more write addresses indicate that the data to be written by the host device is management data of a file system of the host device;
• and
• writing the data to the second predetermined memory block when the one or more write addresses indicate that the data to be written by the host device is not the management data of the file system of the host device,
• wherein when a value corresponding to a write address is less than a predetermined value, it is determined that the data to be written by the host device is the management data of the file system of the host device.