f25l32qa Elite Semiconductor Memory Technology Inc., f25l32qa Datasheet - Page 24
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f25l32qa
Manufacturer Part Number
f25l32qa
Description
3v Only 32 Mbit Serial Flash Memory With Dual And Quad
Manufacturer
Elite Semiconductor Memory Technology Inc.
Datasheet
1.F25L32QA.pdf
(42 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
f25l32qa-100PAG
Manufacturer:
EMST
Quantity:
20 000
ESMT
Mode Bit Reset
Mode bits [M
overhead for Fast Read Dual/Quad I/O operation. If [M
“AxH”, the next Fast Read Dual/Quad I/O instruction doesn’t
need the command code.
If the system controller is reset during operation, it will send a
standard instruction (such as Read ID) to the Flash memory.
Elite Semiconductor Memory Technology Inc.
Figure 16: Mode Bit Reset Instruction
7
SIO
SCK
SIO
–M
CE
SIO
SIO
Note: To reset mode bits dur ing Quad I/O operation, only eight cl ocks are needed. The command code is “FFH”.
0
1
2
3
0
] are issued to further reduce instruction
MODE3
MODE0
To reset mode bits durin g Dua l I/O operation, sixteen clocks are needed to shift in command code “FFFFH”.
0
Mode bit Reset for Quad I/O
1
2
3
FF
4
(Preliminary)
5
Mode bit Reset for Dual I/O
7
6
–M
0
7
] =
8
9
However, the device doesn’t have a hardware reset pin, so if
[M
instruction. After a system reset, it is recommended to issue a
Mode Bit Reset instruction first to release the status of [M
“AxH” and allow the device to recognize standard SPI instruction.
See Figure 16 for the Mode Bit Reset instruction.
7
10
–M
0
11
] = “AxH”, the device will not recognize any standard SPI
FF
12
13
14
15
Publication Date: Jan. 2009
Revision: 0.2
F25L32QA
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7
–M
0
] =