GD5F2GQ4RF9JS datasheet(34/57 Pages) GIGADEVICE

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SPI(x1/x2/x4) NAND Flash

11.5 Internal Data Move

The INTERNAL DATA MOVE command sequence programs or replaces data in a page with existing data. The

INTERNAL DATA MOVE command sequence is as follows:

• 13H (PAGE READ to cache)

• Optional 84H/C4H/34H (PROGRAM LOAD RANDOM DATA)

• 06H (WRITE ENABLE)

• 10H (PROGRAM EXECUTE)

• 0FH (GET FEATURE command to read the status)

Prior to performing an internal data move operation, the target page content must be read out into the cache register by

issuing a PAGE READ (13H) command. The PROGRAM LOAD RANDOM DATA (84H/C4H/34H) command can be

issued, if user wants to update bytes of data in the page. New data is loaded in the 12-bit column address. If the random

data is not sequential, another PROGRAM LOAD RANDOM DATA (84H/C4H/34H) command must be issued with the

new column address. After the data is loaded, the WRITE ENABLE command must be issued, and the na

PROGRAMEXECUTE (10H) command can be issued to start the programming operation.

11.6 Program Load Random Data (84H)

This command consists of an 8-bit Op code, followed by 4 dummy bits, and a 12-bit column address. New data is loaded

in the column address provided with the 12 bits. If the random data is not sequential, then another PROGRAM LOAD

RANDOM DATA (84H) command must be issued with a new column address, see Figure11-4 for details. This command is

only available during internal data move sequence.

Figure11-4. Program Load Random Data Sequence Diagram

Command

84H

CS#

SCLK

9 10 11 12 13 14

22 23

MSB

26 27 28 29

30 31

34 35 36 37

38 39

CS#

SCLK

Data Byte0

11 10

Data Byte1

Data Byte

2175/2111

17424

17431

Dummy<3:0>, A11-A0

Note: when internal ECC disabled the Data Byte is 2175, when internal ECC enabled the Data Byte is 2111.

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