Flash memory device and set-up data initialization method
AssigneeSamsung Electronics Co., Ltd.
InventorSang-Gu KANG
Life of this patent
Estimating the term…
Abstract
A flash memory device includes a memory cell array having a set-up data region configured to store set-up data, wherein the set-up data includes first data and second data. The second data is stored in an empty cell area of the set-up data region. The flash memory also includes a page buffer and decoder configured to read the set-up data from the set-up data region, and a status detector receiving the set-up data from the page buffer and decoder and configured to discriminate the first data from the second data and generate a Pass/Fail status signal.
Claims20
A read method of a flash memory device including a memory cell array having a set-up data region, the method comprising:
- reading data from the set-up data region;
- sequentially selecting a part of the read data;
- and
- determining whether each of the sequentially selected parts of the read data is data associated with initialization or data not associated with initialization, the flash memory device being initialized based on the data judged to be associated with initialization.
A read method of a flash memory device including a memory cell array having a set-up data region, the method comprising:
- reading data from the set-up data region;
- sequentially selecting a part of the read data;
- decoding each of the selected parts of the read data;
- determining each of the selected parts of the read data as either one of data associated with initialization and data not associated with initialization, depending upon each of decoded results corresponding to the selected parts of the read data;
- and
- storing each of decoded results determined to be data associated with initialization in a setup data register,
- wherein when each decoded result is determined to be data not associated with initialization, the data not associated with initialization is discarded.
A read method of a flash memory device including a memory cell array having a set-up data region, the method comprising:
- reading data from the set-up data region;
- sequentially selecting a part of the read data;
- decoding each of the selected parts of the read data;
- determining each of the selected parts of the read data as either one of data associated with initialization and data not associated with initialization, depending upon each of decoded results corresponding to the selected parts of the read data;
- and
- storing each of decoded results in a setup data register,
- wherein each of decoded results determined to be data not associated with initialization is stored in the setup data register with information indicating that each of decoded results determined to be data not associated with initialization is invalid.
Dependencies are inferred from the claim text.