Memory apparatus and data access method for memory
AssigneeMacronix International Co., Ltd.
InventorsWEI-CHIH CHIEN, Hsin-Yi Ho, Hsiang-Lan Lung
Life of this patent
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Abstract
A memory apparatus and a data access method for a memory are provided. The data access method includes: receiving a data erase command for performing a data erase operation; and, during the data erase operation: configuring a selected memory cell block in the memory according to the data erase command; providing a flag memory cell corresponding to the selected memory cell block, erasing a data in the flag memory cell according to the data erase command, and keeping a data in a plurality of selected memory cells in the selected memory cell block unchanged.
Claims10
A data access method for a memory, comprising:
- receiving a data erase command to perform a data erase operation;
- and
- during the data erase operation:
- setting a selected memory cell block to be erased in the memory according to the data erase command;
- and
- providing a flag memory cell corresponding to the selected memory cell block, erasing a data in the flag memory cell according to the data erase command, and keeping a data in a plurality of selected memory cells in the selected memory cell block unchanged.
A memory apparatus, comprising:
- a plurality of memory cell blocks;
- a plurality of flag memory cells respectively corresponding to the memory cell blocks;
- a controller coupled to the memory cell blocks and the flag memory cells and configured to:
- receive a data erase command to perform a data erase operation;
- and
- set a selected memory cell block to be erased in the memory cell blocks according to the data erase command during the data erase operation;
- and
- erase a data in a flag memory cell corresponding to the selected memory cell block according to the data erase command and keep a data in a plurality of selected memory cells in the selected memory cell block unchanged.
Dependencies are inferred from the claim text.