N25Q128 - 1.8 V
Instructions
Figure 75. Quad Command Fast Read instruction and data-out sequence QSP, EBh
S
C
Mode 3
Mode 0
0
1
2
3
4
5
6
7
8
9 10
22 23 24 25 26 27
15 16 17 18 19 20 21
IO switches from Input to Output
Instruction
4
0
4
0
4
0
4
0
4
0
4
0
4
0
4
0
4
0
DQ0
DQ1
DQ2
5
6
1
2
5
6
1
2
5
6
1
2
5
6
1
2
5
6
1
2
5
6
1
2
5
6
1
2
4
4
0
0
4
4
0
0
DQ3
7
3
7
3
7
3
7
3
7
3
4
0
4
0
7
3
7
3
A23-16
A15-8 A7-0
Byte 1 Byte 2
Byte 5 Byte 6
Byte 3 Byte 4
Dummy (ex.: 10)
Quad_Command_Fast_Read_EBh
9.3.3
Read OTP (ROTP)
The Read OTP (ROTP) instruction is used to read the 64 bytes OTP area in the QIO-SPI
protocol. The instruction functionality is exactly the same as the Read OTP instruction of the
Extended SPI protocol. The only difference is that in the QIO-SPI protocol instruction code,
address and output data are all parallelized on the four pins DQ0, DQ1, DQ2 and DQ3.
Note:
The dummy byte bits can not be parallelized: 8 clock cycles are requested to perform the
internal reading operation.
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