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GD25LQ64CSIS 数据表(PDF) 51 Page - GigaDevice Semiconductor (Beijing) Inc.

部件名 GD25LQ64CSIS
功能描述  1.8V Uniform Sector Dual and Quad Serial Flash
PDF  77 Pages
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制造商  GIGADEVICE [GigaDevice Semiconductor (Beijing) Inc.]
网页  http://www.gigadevice.com/
标志 GIGADEVICE - GigaDevice Semiconductor (Beijing) Inc.

GD25LQ64CSIS 数据表(HTML) 51 Page - GigaDevice Semiconductor (Beijing) Inc.

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1.8V Uniform Sector
Dual and Quad Serial Flash
GD25LQ64C
51
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
7.36 Enable Reset (66H) and Reset (99H)
If the Reset command is accepted, any on-going internal operation will be terminated and the device will return to its
default power-on state and lose all the current volatile settings, such as Volatile Status Register bits, Write Enable Latch
status (WEL), Program/Erase Suspend status, Read Parameter setting (P7-P0), Continuous Read Mode bit setting
(M7-M0) and Wrap Bit Setting (W6-W4).
The “Enable Reset (66H)” and the “Reset (99H)” commands can be issued in either SPI or QPI mode. The “Reset
(99H)
” command sequence as follow: CS# goes low  Sending Enable Reset command  CS# goes high  CS# goes
low  Sending Reset command  CS# goes high. Once the Reset command is accepted by the device, the device will
take approximately tRST / tRST_E to reset. During this period, no command will be accepted. Data corruption may happen if
there is an on-going or suspended internal Erase or Program operation when Reset command sequence is accepted by
the device. It is recommended to check the BUSY bit and the SUS bit in Status Register before issuing the Reset command
sequence.
Figure38. Enable Reset and Reset command Sequence Diagram
Command
0
1
2
3
4
5
6
7
66H
CS#
SCLK
SI
SO
High-Z
Command
0
1
2
3
4
5
6
7
99H



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