W25Q256JVEIQ-TR Datasheet, PDF (39/92 Pages) Winbond – 3V 256M-BIT SERIAL FLASH MEMORY WITH DUAL/QUAD SPI

W25Q256JV
8.2.11 Read Data with 4-Byte Address (13h)
The Read Data with 4-Byte Address instruction is similar to the Read Data (03h) instruction. Instead of 24-
bit address, 32-bit address is needed following the instruction code 13h. No matter the device is operating
in 3-Byte Address Mode or 4-byte Address Mode, the Read Data with 4-Byte Address instruction will
always require 32-bit address to access the entire 256Mb memory.
The Read Data with 4-Byte Address instruction sequence is shown in Figure 15. If this instruction is issued
while an Erase, Program or Write cycle is in process (BUSY=1) the instruction is ignored and will not have
any effects on the current cycle. The Read Data with 4-Byte Address instruction allows clock rates from
D.C. to a maximum of fR (see AC Electrical Characteristics).
The Read Data with 4-Byte Address (13h) instruction is only supported in Standard SPI mode.
/CS
CLK
DI
(IO0)
DO
(IO1)
Mode 3
0
Mode 0
* ^{= MSB}
1 2 3 4 5 6 7 8 9 10
36 37 38 39 40 41 42 43 44 45 46 47
Instruction (13h)
32-Bit Address
31 30 29
*
High Impedance
3210
Data Out 1
765432107
*
Figure 15. Read Data with 4-Byte Address Instruction
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Publication Release Date: September 20, 2016
Revision B