FOR MOBILE APPLICATIONS
W25Q256FV
Publication Release Date: May 13, 2012
- 48 - Preliminary - Revision M1
8.2.19
Fast Read Dual I/O with 4-Byte Address (BCh)
The Fast Read Dual I/O with 4-Byte Address instruction is similar to the Fast Read Dual I/O 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 I/O with 4-Byte Address instruction will
always require 32-bit address to access the entire 256Mb memory.
The Fast Read Dual I/O with 4-Byte Address (BCh) instruction is only supported in Standard SPI mode.
Figure 23a. Fast Read Dual I/O with 4-Byte Address Instruction (Initial instruction or previous M5-4
≠
10, SPI Mode only)