n25q064 Numonyx, n25q064 Datasheet - Page 36

• 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

Volatile and Non Volatile Registers
6.3
Table 5.
1. To optimize instruction execution (FASTREAD, DOFR,DIOFR,QOFR, QIOFR, ROTP) according to the frequency.
2. To make the data on DQ0 during the first dummy clock NOT “Don’t Care.” For devices with feature set digit equal to 2 or 4
36/154
VCR<7:4>
VCR<3>
VCR<2>
VCR<1:0> Wrap
in the part number (Basic XiP), this bit is always Don't Care."
Bit
Dummy
clock
cycle
XIP
Reserved
Parameter
Volatile Configuration Register
The Volatile Configuration Register (VCR) affects the memory configuration after every
execution of Write Volatile Configuration Register (WRVCR) instruction: this instruction
overwrite the memory configuration set at POR by the Non Volatile Configuration Register
(NVCR). Its purpose is to define the dummy clock cycles number and to make the device
ready to enter in the required XIP mode.
Volatile Configuration Register
(2)
(1)
0000
0001
0010
0011
0100
0101
0110
0111
1000
1001
1010
1011
1100
1101
1110
1111
0
1
x
00
01
10
11
Binary
Value
As '1111'
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
0
1
reserved Fixed value = 0b
0
1
2
3
Decimal
Value
Targets maximum allowed frequency fc (108MHz) and guarantees
backward compatibility (default)
Ready to enter XIP mode
XIP disabled (default)
16-byte wrap: Output data wraps within an aligned 16-byte boundary
starting from the address issued after the command code.
32-byte wrap: Output data wraps within an aligned 32-byte boundary
starting from the address issued after the command code.
64-byte wrap: Output data wraps within an aligned 64-byte boundary
starting from the address issued after the command code.
Continous reading (Default): All bytes are read sequentially
Micron Technology, Inc., reserves the right to change products or specifications without notice.
Description
©2010 Micron Technology, Inc. All rights reserved.
N25Q064 - 1.8V