Multi-plane data order
Systems, methods and computer program products for programming data into a multi-plane memory device employ a multi-plane data order. To allow multiple data pages to be programmed without a need to increase the size of page buffers, in some implementations, a data transfer scheme at which the data pages are programmed can be manipulated. Specifically, data across all channels can first be programmed into a first plane of the multi-plane flash memory device in parallel. While the data transfer program operation is in progress, data to be programmed into a succeeding plane (e.g., plane “1”) can be read into and cached in one or more page buffers. After the data transfer program for the first plane is complete, data cached in the page buffers can be immediately latched and programmed into the multi-plane flash memory device.
1. A method comprising:
receiving a first subset of first data and a first subset of second data;
storing the first subset of the first data in a first page buffer and storing the first subset of the second data in a second page buffer, wherein the first page buffer and the second page buffer have a size equivalent to one page of a memory plane;
programming the stored first subset of the first data into a first page associated with a first memory plane of a multi-plane memory device;
programming the stored first subset of the second data into a second page associated with the first memory plane in parallel with programming the stored first subset of the first data;
while programming the stored first subset of the first data into the first page associated with the first memory plane of the multi-plane memory device, receiving a second subset of the first data and storing the second subset of the first data in the first page buffer;
while programming the stored first subset of the second data into the second page associated with the first memory plane, receiving a second subset of the second data and storing the second subset of the second data in the second page buffer;
programming the stored second subset of the first data into a first page associated with a second memory plane of the multi-plane memory device after programming the stored first subset of the second data into the second page associated with the first memory plane; and
programming the stored second subset of the second data into a second page associated with the second memory plane.
2. The method of claim 1 , where receiving the first data includes receiving the first data over a first channel; and
where receiving the second data includes receiving the second data over a second channel different from the first channel.
3. A device comprising:
a first page buffer configured to receive a first subset of first data from a first channel and store the first subset of the first data;
a second page buffer configured to receive a first subset of second data from a second channel and store the first subset of the second data; and
circuitry configured to program the stored first subset of the first data into a first page associated with a first memory plane of a multi-plane memory device and the stored first subset of the second data into a second page associated with the first memory plane of the multi-plane memory device in parallel,
wherein the first page buffer is configured to receive a second subset of the first data from the first channel and store the second subset of the first data while the stored first subset of the first data is being programmed into the first page associated with the first memory plane of the multi-plane memory device,
the second page buffer is configured to receive a second subset of the second data from the second channel and store the second subset of the second data while the stored first subset of the second data is being programmed into the second page associated with the first memory plane of the multi-plane memory device, and
the circuitry is configure to program the stored second subset of the first data into a first page associated with a second memory plane of the multi-plane memory device after the stored first subset of the second data is programmed into the second page associated with the first memory plane of the multi-plane memory device, and program the stored second subset of the second data into a second page associated with a second memory plane of the multi-plane memory device.
4. A system comprising:
a memory device having a first memory plane and a second memory plane;
a first page buffer to receive a first subset of first data from a first channel and store the first subset of the first data;
a second page buffer to receive a first subset of second data from a second channel and store the first subset of the second data; and
a controller configured to:
program, in parallel,
the stored first subset of the first data into a first page associated with the first memory plane of the memory device, and
the stored first subset of the second data into a second page associated with the first memory plane of the memory device,
wherein the first page buffer is configured to receive a second subset of the first data and store the second subset of the first data while the stored first subset of the first data is being programmed into the first page associated with the first memory plane of the memory device,
the second page buffer is configured to receive a second subset of the second data and store the second subset of the second data while the stored first subset of the second data is being programmed into the second page associated with the first memory plane of the memory device, and
the controller is configured to program i) the stored second subset of the first data into a first page associated with the second memory plane of the memory device after the stored first subset of the second data is programmed into the second page associated with the first memory plane of the memory device, and ii) the stored second subset of the second data into a second page associated with the second memory plane of the memory device.
5. The system of claim 4 , where the controller is further configured to initialize a program operation associated with programming the stored first subset of the second data before initializing a program operation associated with programming the stored second subset of the first data but after initializing a program operation associated with programming the stored first subset of the first data.
6. The method of claim 1 , where programming the stored second subset of the second data into the second page associated with the second memory plane is performed in parallel with programming the stored second subset of the first data into the first page associated with the second memory plane.
7. The device of claim 3 , where the circuitry is configured to program the stored second subset of the second data into the second page associated with the second memory plane of the multi-plane memory device in parallel with programming the stored second subset of the first data into the first page associated with the second memory plane of the multi-plane memory device.
8. The system of claim 4 , where the controller is configured to program the stored second subset of the second data into the second page associated with the second memory plane of the memory device in parallel with programming the stored second subset of the first data into the first page associated with the second memory plane of the memory device.
9. The method of claim 1 , where programming the stored first subset of the second data into the second page associated with the first memory plane in parallel with programming the stored first subset of the first data includes initializing a program operation associated with the stored first subset of the second data before completing the programming of the stored first subset of the first data into the first page associated with the first memory plane.
10. The device of claim 3 , where the circuitry is configured to initialize a program operation associated with programming the stored first subset of the second data before completing a program operation associated with programming the stored first subset of the first data.
11. The system of claim 4 , where the controller is configured to initialize a program operation associated with the stored first subset of the second data before completing the programming of the stored first subset of the first data into the first page associated with the first memory plane of the memory device.