GD25Q64C datasheet(27/74 Pages) GIGADEVICE

Il numero della parte	GD25Q64C

Spiegazioni elettronici	3.3V Uniform Sector Dual and Quad Serial Flash

PDF	74 Pages

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Produttore elettronici	GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]

Homepage	http://www.gigadevice.com/

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27 / 74 page

3.3V Uniform Sector

Dual and Quad Serial Flash

GD25Q64C

7.13. Set Burst with Wrap (77H)

The Set Burst with Wrap command is used in conjunction with “Quad I/O Fast Read” and “Quad I/O Word Fast Read”

command to access a fixed length of 8/16/32/64-byte section within a 256-byte page.

The Set Burst with Wrap command sequence: CS# goes low  Send Set Burst with Wrap command  Send 24 dummy

bits 

Send 8 bits “Wrap bits”  CS# goes high.

W6,W5

W4=0

W4=1 (default)

Wrap Around

Wrap Length

Wrap Around

Wrap Length

0, 0

Yes

8-byte

N/A

0, 1

Yes

16-byte

N/A

1, 0

Yes

32-byte

N/A

1, 1

Yes

64-byte

N/A

If the W6-W4 bits are set by the

Set Burst with Wrap command, all the following “Quad I/O Fast Read” and “Quad I/O Word

Fast Read” command will use the W6-W4 setting to access the 8/16/32/64-byte section within any page. To exit the “Wrap

Around” function and return to normal read operation, another Set Burst with Wrap command should be issued to set W4=1.

Figure 17. Set Burst with Wrap Sequence Diagram

Command

77H

CS#

SCLK

SI(IO0)

SO(IO1)

9 10 11 12 13 14 15

W6-W4

WP#(IO2)

HOLD#(IO3)

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