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GD25LQ64CSFS Datasheet(PDF) 50 Page - GigaDevice Semiconductor (Beijing) Inc.

No. de pieza GD25LQ64CSFS
Descripción Electrónicos  1.8V Uniform Sector Dual and Quad Serial Flash
PDF  77 Pages
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Fabricante Electrónico  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
Página de inicio  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25LQ64CSFS Datasheet(HTML) 50 Page - GigaDevice Semiconductor (Beijing) Inc.

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1.8V Uniform Sector
Dual and Quad Serial Flash
GD25LQ64C
50
7.33 Burst Read with Wrap (0CH)
The
“Burst Read with Wrap (0CH)” command provides an alternative way to perform the read operation with “Wrap
Around
” in QPI mode. This command is similar to the “Fast Read (0BH)” command in QPI mode, except the addressing of
the read operation will
“Wrap Around” to the beginning boundary of the “Wrap Around” once the ending boundary is
reached. The
“Wrap Length” and the number of dummy clocks can be configured by the “Set Read Parameters (C0H)”
command.
Figure35. Burst Read with Wrap command Sequence Diagram
CS#
SCLK
IO0
IO1
IO2
IO3
0
1
2
3
4
5
Command
0CH
20
12
16
8
6
7
8
9
10
4
0
4
0
4
0
4
21
13
17
9
5
1
5
1
5
1
5
22
14
18
10
6
2
6
2
6
2
6
23
15
19
11
7
3
7
3
7
3
7
A23-16
A15-8
A7-0
Dummy*
11
12 13
14
IOs switch from
Input to output
Byte1
Byte2
Byte3
*"Set Read Parameters" Command (C0H)
can set the number of dummy clocks
7.34 Enable QPI (38H)
The device support both Standard/Dual/Quad SPI and QPI mode. The
“Enable QPI (38H)” command can switch the
device from SPI mode to QPI mode. See the command Table 2a for all support QPI commands. In order to switch the
device to QPI mode, the Quad Enable (QE) bit in Status Register-1 must be set to 1 first, and
“Enable QPI (38H)”
command must be issued. If
the QE bit is 0, the “Enable QPI (38H)” command will be ignored and the device will remain in
SPI mode. When the device is switched from SPI mode to QPI mode, the existing Write Enable Latch and Program/Erase
Suspend status, and the Wrap Length setting will remain unchanged.
Figure36. Enable QPI mode command Sequence Diagram
Command
0
1
2
3
4
5
6
7
38H
CS#
SCLK
SI



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