n25q064 Numonyx, n25q064 Datasheet - Page 120

• Manufacturer Part Number: n25q064
• Description: 64mb 1.8v, Multiple I/o, 4kb Subsector Erase, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
• Manufacturer: Numonyx

Instructions
9.3.17
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DQ0
DQ3
DQ1
*Address bit A23 is “Don’t Care. ”
DQ2
S
C
Figure 93. Read Lock Register instruction and data-out sequence QIO-SPI
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)
Instruction
0
1
21 17 13 9
2
20 16 12 8
22 18 14 10 6
23 19 15 11 7
3
24-bit address*
4
5
6
5
4
Micron Technology, Inc., reserves the right to change products or specifications without notice.
7
1
0
2
3
8
5
4
6
7
for further details.
9 10 11 12 13 14 15
1
0
3
2
Lock Register Out
5
4
7
6
1
0
3
2
4
5
7
6
0
1
3
2
©2010 Micron Technology, Inc. All rights reserved.
4
5
7
6
0
1
3
2
N25Q064 - 1.8V