Data storage device and data processing system including the same

摘要

A data processing system includes a host device including a first volatile memory device, and a data storage device including a second volatile memory device and a nonvolatile memory device, and suitable for storing data to be accessed by the host device. The data storage device uploads data stored in the second volatile memory device to the first volatile memory device before the data storage device in a normal mode enters a power-save mode.

主权项

1. A data processing system comprising:
a host device including a first volatile memory device; and a data storage device coupled with the host device through a host interface and suitable for storing data to be accessed by the host device, wherein
the data storage device comprises:a controller suitable for controlling an operation of the data storage device; a second volatile memory device suitable for storing data necessary to drive the controller; and an access block suitable for uploading data stored in the second volatile memory device to the first volatile memory device through the host interface according to control of the controller before the data storage device in a normal mode enters a power-save mode and downloading the data previously uploaded to the first volatile memory device to the second volatile memory device through the host interface independently from the control of the controller when the data storage device in the power-save mode returns to the normal mode, wherein the access block stays activated in the power-save mode.