n25q256 Numonyx, n25q256 Datasheet - Page 45

• 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

N25Q256 - 3 V
Note:
6.3.2
6.3.3
Table 7.
0
1
16
31
63
Starting Address
clock cycle number, according to
cycles) to optimize the fast read instructions performance.
If the dummy clock number is not sufficient for the operating frequency, the memory reads
wrong data.
XIP Volatile Configuration bits (VCR bit 3)
The bit 3 of the Volatile Configuration Register is the XIP enabling bit, this bit must be set to
0 to enable the memory working on XIP mode. For devices with a feature set digit equal to 2
or 4 in the part number (Basic XiP), this bit is always Don't Care, and it is possible to operate
the memory in XIP mode without setting it to 0. See
Wrap: VCR bits 1:0
The Wrap mode provides the ability to read from memory sequentially ((standard mode); or
to read from memory by confined 16-byte, 32-byte, or 64-byte boundaries. For Wrap setting
options, see
of the sequence of bytes in the 16-byte, 32-byte, and 64-byte options, according to the
starting address.
Sequence of Bytes Read during Wrap Mode
0-1-2- . . . -15-0-1- . .
1-2- . . . -15-0-1-2- . .
15-0-1-2-3- . . . -15-0-1- . .
31-16-17- . . . -31-16-17- . .
63-48-49- . . . -63-48-49- . .
Table 6.: Volatile Configuration
16-Byte Wrap
Table 5.: Maximum operative frequency by dummy clock
0-1-2- . . . -31-0-1- . .
1-2- . . . -31-0-1-2- . .
15-16-17- . . . -31-0-1- . .
31-0-1-2-3- . . . -31-0-1- . .
63-32-33- . . . -63-32-33- . .
Micron Technology, Inc., reserves the right to change products or specifications without notice.
32-Byte Wrap
Register. The following table shows an example
Section 16: Ordering
Volatile and Non Volatile Registers
©2010 Micron Technology, Inc. All rights reserved.
0-1-2- . . . -63-0-1- . .
1-2- . . . -63-0-1-2- . .
15-16-17- . . . -63-0-1- . .
31-32-33- . . . -63-0-1- . .
63-0-1- . . . -63-0-1- . .
64-Byte Wrap
information.
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