W25Q256FVBIF-TR Datasheet, PDF (46/108 Pages) Winbond – 3V 256M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI & QPI

W25Q256FV
8.2.15 Fast Read Dual Output with 4-Byte Address (3Ch)
The Fast Read Dual Output with 4-Byte Address instruction is similar to the Fast Read Dual Output
instruction except that it requires 32-bit address instead of 24-bit address. No matter the device is
operating in 3-Byte Address Mode or 4-byte Address Mode, the Fast Read Dual Output with 4-Byte
Address instruction will always require 32-bit address to access the entire 256Mb memory.
The Fast Read Dual Output with 4-Byte Address (3Ch) instruction is only supported in Standard SPI
mode.
/CS
CLK
DI
(IO0)
DO
(IO1)
/CS
CLK
DI
(IO0)
Mode 3
Mode 0
0 1 2 3 4 5 6 7 8 9 10
36 37 38 39
Instruction (3Ch)
32-Bit Address
31 30 29
*
High Impedance
3210
* ^{= MSB}
39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63
Dummy Clocks
IO0 switches from
Input to Output
0
64206420642064206
DO
(IO1)
High Impedance
75317531753175317
* ^{Data Out 1}
* ^{Data Out 2}
* ^{Data Out 3}
* ^{Data Out 4}
Figure 19. Fast Read Dual Output with 4-Byte Address Instruction (SPI Mode only)
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