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AT25QL641 Datasheet(PDF) 26 Page - Renesas Technology Corp

Part # AT25QL641
Description  SPI Serial Flash Memory with Dual I/O, Quad I/O, QPI Support
PDF  80 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

AT25QL641 Datasheet(HTML) 26 Page - Renesas Technology Corp

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DS-AT25QL641-130 Rev. G
Page 26
Sep 14, 2022
© 2022 Renesas Electronics
AT25QL641 Datasheet
8.7
Write Status Register-2 (31h)
The Write Status Register-2 command is used to write only non-volatile Status Register-2 bits CMP, QE and
SRP1.
A Write Enable (06h) command must have previously been issued prior to executing the Write Status Register
Command (Status Register bit WEL must equal 1). Once the WEL bit is set, the command is entered by driving CS
low, sending the command code, and then writing the status register data byte as illustrated in Figure 12 and
Figure 13.
Using t h e Write Status Register-2 (31h) command, software can individually access each one-byte Status
register via a different command.
Figure 12. Write Status Register-2 Command (SPI Mode)
Figure 13. Write Status Register-2 Command (QPI Mode)
SO
SCK
SI
CS
03
11
5
13
2
10
8
4
12
6
14
7
15
11
13
10
12
15
14
9
8
9
1
Mode 3
Mode 0
Mode 3
Mode 0
MSB
Status Register 2 in
Command
31h
High-Impedance
IO
IO
IO
IO
SCK
Command
31h
SR2
in
0
8
1
9
10
11
3
13
2
12
15
14
Mode 3
Mode 0
Mode 3
Mode 0
CS



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