Data storage device and operating method thereof
AssigneeSK hynix Inc.
InventorDong Jae SHIN
Life of this patent
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Abstract
A data storage device includes a nonvolatile memory device; a control unit configured to generate a descriptor in which works for controlling the nonvolatile memory device are written; a memory control unit configured to provide control signals and write data to the nonvolatile memory device based on the descriptor; and a voltage detector configured to provide a voltage drop signal to the memory control unit in the case where a first operating voltage provided to the memory control unit or a second operating voltage provided to the nonvolatile memory device drops.
Claims20
A data storage device comprising:
- a nonvolatile memory device;
- a control unit configured to generate a descriptor including tasks for controlling the nonvolatile memory device;
- a memory control unit configured to provide control signals and write data to the nonvolatile memory device based on the descriptor;
- and
- a voltage detector configured to provide a voltage drop signal to the memory control unit when at least one of a first operating voltage provided to the memory control unit and a second operating voltage provided to the nonvolatile memory device, drops.
A method for operating a data storage device including a nonvolatile memory device and a controller which controls the, nonvolatile memory device, the method comprising:
- providing data to the nonvolatile memory device;
- determining whether a voltage drop has occurred in at least one of a first operating voltage provided to the controller and a second operating voltage provided to the nonvolatile memory device, before the data are completely provided;
- and
- retaining allocation for a region of a data buffer memory where the data are stored, when it is determined that the voltage drop has occurred.
A data storage device comprising:
- a nonvolatile memory device;
- a control unit configured to generate a first descriptor including tasks for controlling the nonvolatile memory device;
- a memory control unit configured to provide control signals and data to the nonvolatile memory device based on the first descriptor;
- and
- a voltage detector configured to provide a voltage drop signal to the memory control unit when at least one of a first operating voltage provided to the memory control unit and a second operating voltage provided to the nonvolatile memory device has dropped,
- wherein the memory control unit reports a power state information indicating that a voltage drop has occurred, to the control unit, through the first descriptor.
Dependencies are inferred from the claim text.