EN27LN1G08 Datasheet, PDF (31/41 Pages) Eon Silicon Solution Inc. – 1 Gigabit (128 M x 8), 3.3 V NAND Flash Memory

EN27LN1G08
Copy-Back Program
Copy-Back program with Read for Copy-Back is configured to quickly and efficiently rewrite data store in
one page. The benefit is especially obvious when a portion of a block is updated and the rest of the
block also needs to be copied to the newly assigned free block. Copy-Back operation is a sequential
execution of Read for Copy-Back and of copy-back program with the destination page address. A read
operation with “35h” command and the address of the source page moves the whole 2,112-byte data
into the internal data buffer. A bit error is checked by sequential reading the data output. In the case
where there is no bit error, the data do not need to be reloaded. Therefore Copy-Back program
operation is initiated by issuing Page-Copy Data-Input command (85h) with destination page address.
Actual programming operation begins after Program Confirm command (10h) is issued. Once the
program process starts, the Read Status Register command (70h) may be entered to read the status
register. The system controller can detect the completion of a program cycle by monitoring the R/ B
output, or the Status bit (I/O6) of the Status Register. When the Copy-Back Program is completed, the
Write Status Bit (I/O0) may be checked. The command register remains in Read Status command mode
until another valid command is written to the command register.
During coy-back program, data modification is possible using random data input command (85h).
Page Copy-Back Program Operation
Note:
1. This operation is allowed only within the same memory plane.
2. It’s prohibited to operate Copy-Back program from an odd address page (source page) to an even
address (target page) or from an even address page (source page) to an odd address page (target
page). Therefore, the Copy-Back program is permitted just between odd address pages or even
address pages.
This Data Sheet may be revised by subsequent versions
or modifications due to changes in technical specifications.
©2013 Eon Silicon Solution, Inc., www.eonssi.com
Rev. C, Issue Date: 2013/10/03