n25q256 Numonyx, n25q256 Datasheet - Page 27

• 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
Figure 13. 4-Byte Address Mode
Note:
S e r ia l F la sh D is co v e r y P a r a m e te r
in str u c tio n . O th e r in str u c tio n s n o t
Y e s
a d d r e s s, e xc e p t fo r th e R e a d
A ll o p e r a tio n s n e e d a 4 b yte
in vo lve d a r e a v a ila b le .
E N 4 B Y T E A D D R
E X 4 B Y T E A D D R
Figure 12. 4-Byte Address on Four Wires, Quad SPI Example
The default address mode is segmentation (3-Byte address mode). The mode can be
changed by setting the NVCR bit.
WREN operation is implied in EN4BYTEADDR, EX4BYTEADDR, and WREAR; to check
the address mode enabled, a bit in FSR is enabled.
DQ0
DQ1
DQ2
DQ3
S#
C
(B 7 h )
(E 9 h )
Instruction
N o
Y e s
N o
0
1
4th Byte
Address
28 24
29 25
30 26
31 27
2
3
21 17 13 9
22 18 14 10 6
23 19 15 11 7
20 16 12 8
4
e xe cu te d in th e 1 2 8 M B d e fin e d b y
24-Bit Address
N V C R < 1 > . O th e r in s tr u ctio n s a r e
0 . T h is va lu e ca n b e m o d ifie d b y
5
b o u n d e d in it. E A R < 0 > d e fa u lt =
d e fin e d b y E A R < 0 > b u t a r e n o t
E A R < 0 > . R e a d o p e r a tio n s in
M a tr ix m o d ify o p e r a tio n s a r e
m a tr ix sta r t fr o m th e 1 2 8 M B
6
7
E A R < 0 > d e fa u lt
n o t in vo lve d .
8
4
5
In str u ctio n
P o w e r-u p
2
0
1
3
9
10 1
Micron Technology, Inc., reserves the right to change products or specifications without notice.
W R E A R
D e fin e a va lu e fo r E A R < 0 >
©2010 Micron Technology, Inc. All rights reserved.
Operating features
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