Patent ID: 8209464

Claim:
A management method for memory data access, suitable for using a control unit disposed between a host and a device for managing data transmitted between the host and the device, wherein the control unit is connected to a storage unit, the management method comprising: receiving a data writing command from the host, wherein the data writing command indicates first data to be written; searching for a set mapped to the first data in the storage unit so as to update the data in the set; and collecting second data, integrating the second data with the first data into integrated data, and writing the integrated data into the device, wherein the step of searching for the set mapped to the first data in the storage unit so as to update the data in the set comprises: searching for the set mapped to the first data in a data integration area of the storage unit so as to update the data in the set; searching for the set mapped to the first data in a data buffer area of the storage unit so as to update the data in the set if the set mapped to the first data is not found in the data integration area; searching for a blank set in the data buffer area and writing the first data into the blank set if the set mapped to the first data is not found in the data integration area and the data buffer area; and moving the data in a block of the data buffer area to the data integration area and writing the first data into the block of the data buffer area if there is no blank set in the data buffer area.