n25q256 Numonyx, n25q256 Datasheet - Page 40

• 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

Volatile and Non Volatile Registers
Table 4.
40/186
NVCR<15:12>
NVCR<11:9>
NVCR<8:6>
NVCR<5>
Bit
Non-Volatile Configuration Register
Dummy clock
cycle
XIP enabling at
POR
Output Driver
Strength
Reserved
Parameter
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
000
001
010
011
100
101
110
111
000
001
010
011
100
101
110
111
X
Value
As '1111'
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Target on maximum allowed
frequency fc (108MHz) and
to guarantee backward
compatibility (default)
XIP for SIO Read
XIP for DOFR
XIP for DIOFR
XIP for QOFR
XIP for QIOFR
reserved
reserved
XIP disabled (default)
reserved
90
60
45
reserved
20
15
30 (default)
Don’t Care
Description
Micron Technology, Inc., reserves the right to change products or specifications without notice.
To optimize instruction execution
(FASTREAD, DOFR,DIOFR,QOFR,
QIOFR, ROTP) according to the
frequency
Impedance at Vcc/2
Default value = 1
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Note
N25Q256 - 3 V