Apparatus and method of page program operation for memory devices with mirror back-up of data
First Claim
1. A method for communicating with a serial interconnection of a plurality of memory devices interconnected in-series, the serial interconnection including at least first and second memory devices, each of the first and second memory devices having a store element and memory cells and being associated with a unique address in the serial interconnection, the method comprising:
- loading data stored in a data storage to the store elements of the first and second memory devices of the serial interconnection;
instructing the first memory device to program the data loaded in its store element into its memory cells;
determining whether the data is successfully programmed into the memory cells of the first memory device, if not successfully programmed, a failure determination being provided;
recovering the data from the store element of the second memory device in response to the failure determination, the recovering comprising reading back the data from the store element of the second memory device without programming the loaded data into the memory cells of the second memory device;
storing the read back data in the data storage;
loading the read back and stored data to the store elements of the first and second memory devices of the serial interconnection; and
freeing up space in the data storage where the read back data is stored before loading the data in the store elements of the first and second memory devices.
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Accused Products
Abstract
An apparatus and method of page program operation is provided. When performing a page program operation with a selected memory device, a memory controller loads the data into the page buffer of one selected memory device and also into the page buffer of another selected memory device in order to store a back-up copy of the data. In the event that the data is not successfully programmed into the memory cells of the one selected memory device, then the memory controller recovers the data from the page buffer of the other memory device. Since a copy of the data is stored in the page buffer of the other memory device, the memory controller does not need to locally store the data in its data storage elements.
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Citations
11 Claims
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1. A method for communicating with a serial interconnection of a plurality of memory devices interconnected in-series, the serial interconnection including at least first and second memory devices, each of the first and second memory devices having a store element and memory cells and being associated with a unique address in the serial interconnection, the method comprising:
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loading data stored in a data storage to the store elements of the first and second memory devices of the serial interconnection; instructing the first memory device to program the data loaded in its store element into its memory cells; determining whether the data is successfully programmed into the memory cells of the first memory device, if not successfully programmed, a failure determination being provided; recovering the data from the store element of the second memory device in response to the failure determination, the recovering comprising reading back the data from the store element of the second memory device without programming the loaded data into the memory cells of the second memory device; storing the read back data in the data storage; loading the read back and stored data to the store elements of the first and second memory devices of the serial interconnection; and freeing up space in the data storage where the read back data is stored before loading the data in the store elements of the first and second memory devices. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A method for communicating with a serial interconnection of a plurality of memory devices interconnected in-series, the serial interconnection including at least first and second memory devices, each of the first and second memory devices having a store element and memory cells and being associated with a unique address in the serial interconnection, each of the unique addresses of the first and second memory devices being represented by a plurality of binary bits, the method comprising:
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transmitting a command to the serial interconnection, the command including address information represented by a plurality of binary bits; selecting the first and second memory devices in the serial interconnection by comparing the plurality of binary bits without one bit representing the address information to the plurality of binary bits representing the unique addresses of the first and second memory devices; loading data stored in a data storage to the store elements of the first and second memory devices of the serial interconnection; instructing the first memory device to program the data loaded in its store element into its memory cells; determining whether the data is successfully programmed into the memory cells of the first memory device, if not successfully programmed, a failure determination being provided; and recovering the data from the store element of the second memory device in response to the failure determination. - View Dependent Claims (8, 9, 10, 11)
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Specification