Abstract: A data access method and a related control system are provided according to embodiments of the present invention, which enhances the read/write performance of a data storage unit by performing pre-accessing operations upon the data storage unit. The data access method includes receiving a plurality of access requests and a plurality of corresponding addresses to access a plurality of data corresponding to the plurality of access requests from a storage unit; and performing a pre-accessing operation upon the storage unit according to the uniformity of the plurality of access requests and the continuity between the plurality of addresses.

Abstract: A method for setting an operating frequency of a memory card includes the following steps: performing an operating frequency adjusting flow to select a target operating frequency, and utilizing the target operating frequency to set the operating frequency of the memory card, where the step of performing the operating frequency adjusting flow includes: selecting a plurality of candidate operating frequencies; testing an accessing performance of the memory card operated under the plurality of candidate operating frequencies to generate a plurality of testing results, respectively; and selecting one of the plurality of candidate operating frequencies as the target operating frequency according to the plurality of testing results.