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GD25LQ128DSJS датащи(PDF) 54 Page - GigaDevice Semiconductor (Beijing) Inc.

номер детали GD25LQ128DSJS
подробное описание детали  1.8V Uniform Sector Dual and Quad Serial Flash
PDF  79 Pages
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производитель  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
домашняя страница  http://www.gigadevice.com/
Logo GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25LQ128DSJS датащи(HTML) 54 Page - GigaDevice Semiconductor (Beijing) Inc.

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1.8V Uniform Sector
Dual and Quad Serial Flash
GD25LQ128D
54
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
7.35.
Disable QPI (FFH)
To exit the QPI mode and return to Standard/Dual/Quad SPI mode, the
“Disable QPI (FFH)” command must be
issued. When the device is switched from QPI mode to SPI mode, the existing Write Enable Latch and Program/Erase
Suspend status, and the Wrap Length setting will remain unchanged.
Figure37. Disable QPI mode command Sequence Diagram
CS#
SCLK
IO0
IO1
IO2
IO3
0
1
Command
FFH



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