n25q032 Numonyx, n25q032 Datasheet - Page 126

• Manufacturer Part Number: n25q032
• Description: 32-mbit 3 V, Multiple I/o, 4-kbyte Subsector Erase, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
• Manufacturer: Numonyx

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Write to Lock Register (WRLR)
The Write to Lock Register (WRLR) instruction allows bits to be changed in the Lock
Registers. Before it can be accepted, a Write Enable (WREN) instruction must previously
have been executed.
Apart form the parallelizing of the instruction code, the address and the input data on the
four pins DQ0, DQ1, DQ2 and DQ3, the instruction functionality is exactly the same as the
Write to Lock Register (WRLR) instruction of the Extended SPI protocol, please refer to
Section 9.1.26: Write to Lock Register (WRLR)
Figure 90. Write to Lock Register instruction sequence QIO-SPI
*Address bits A23 and A22 are “Don’t Care.”
DQ0
DQ2
DQ3
DQ1
S
C
Instruction
0
1
2
21 17 13 9
20 16 12 8
22 18 14 10
23 19 15 11 7
*24-bit Address
3
4
5
6
5
6
4
for further details.
7
2
1
0
3
8
6
4
5
Lock Register In
7
9
2
0
1
3