n25q256 Numonyx, n25q256 Datasheet - Page 128

• Manufacturer Part Number: n25q256
• Description: 256-mbit 3 V, Multiple I/o, 4-kbyte Subsector Erase, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
• Manufacturer: Numonyx

Instructions
9.2.23
9.2.24
128/186
Read Volatile Configuration Register, Dual I/O
The Read Volatile Configuration Register (RDVCR) instruction allows the Volatile
Configuration Register to be read. See
Figure 86. Read Volatile Configuration Register instruction sequence DIO-SPI
Write Volatile Configuration Register, Dual I/O
The Write Volatile Configuration register (WRVCR) instruction allows new values to be
written to the Volatile Configuration register. Before it can be accepted, a write enable
(WREN) instruction must have been executed previously.
Apart form the parallelizing of the instruction code and the input data on the two pins DQ0
and DQ1, the instruction functionality is exactly the same as the Write Volatile Configuration
Register (WVCR) instruction of the Extended SPI protocol, please refer to
Write Volatile Configuration Register
Figure 87. Write Volatile Configuration Register instruction sequence DIO-SPI
DQ0
DQ1
C
S
DQ0
DQ1
C
S
0
Instruction
1
0
Instruction
2
1
3
for further details.
2
7
6
4
Table 6.: Volatile Configuration
Micron Technology, Inc., reserves the right to change products or specifications without notice.
3
5
4
Volatile Configuration
5
Byte
7
6
4
3
2
6
Register Out
5
4
Volatile Configuration
5
Byte
1
0
7
3
2
6
7
6
8
Register In
1
0
5
7
4
9 10 11
Byte
3
2
1
0
©2010 Micron Technology, Inc. All rights reserved.
Register.
Section 9.1.38:
N25Q256 - 3 V