DATA STORAGE DEVICE AND OPERATING METHOD THEREOF

摘要

A data storage device according to an embodiment of the present invention comprises a a first DMA device formed to transmit an authentication demanding information for authenticating a DMA operation for a target segment of a buffer memory device; and a DMA processing part formed to authenticate or not authenticate the DMA operation refer to the authentication judgment information and authentication demanding information corresponding to the target segment, and formed to update the authentication judgment information, when the DMA operation is finished.