User device including a nonvolatile memory device and a data write method thereof
AssigneeSamsung Electronics Co., Ltd.
InventorsSangkwon Moon, Kyung Ho Kim, Seunguk Shin, Sung Won Jung
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Abstract
An access method of a nonvolatile memory device included in a user device includes receiving a write request to write data into the nonvolatile memory device; detecting an application issuing the write request, a user context, a queue size of a write buffer, an attribute of the write-requested data, or an operation mode of the user device; and deciding one of a plurality of write modes to use for writing the write-requested data into the nonvolatile memory device according to the detected information. The write modes have different program voltages and verify voltage sets.
Claims20
A method of accessing a nonvolatile memory device in a storage device, the method comprising:
- receiving an access mode information to be written into at least one register from external device;
- reading the access mode information from the at least one register;
- deciding one of a plurality of operation speed modes to access the nonvolatile memory device according to the access mode information;
- and
- performing an operation based on the decided operation speed mode,
- wherein each of the plurality of operation speed modes have different access voltage sets to define access speed of the nonvolatile memory device.
A user device including a display, a user interface, and a write buffer, comprising:
- a memory system configured to vary an access bias to a nonvolatile memory device depending on an access mode;
- and
- a host configured to decide the access mode for write-requested data or read-requested data according to at least one of a kind of application being executed, a time of user input to the user interface, an ON/OFF state of the display, a queue size of data stored in the write buffer, an attribute of the write-requested data, an operation mode of the user device, a lifetime of the memory system, and a total amount of data written into the nonvolatile memory device.
A method of accessing a memory system including at least one nonvolatile memory device, comprising:
- receiving an access speed information of the nonvolatile memory device from an external device;
- and
- accessing the nonvolatile memory device with reference to the received access speed information,
- wherein the access speed information is associated with an access speed of the nonvolatile memory device,
Dependencies are inferred from the claim text.