n25q256 Numonyx, n25q256 Datasheet - Page 23

• Manufacturer Part Number: n25q256
• Description: 256-mbit 3 V, Multiple I/o, 4-kbyte Subsector Erase, Xip Enabled, Serial Flash Memory With 108 Mhz Spi Bus Interface
• Manufacturer: Numonyx

N25Q256 - 3 V
SPI Protocols
This mode can be set using two ways
Volatile: by setting bit 7 of the VECR to 0, the device enters QIO-SPI protocol
immediately after the Write Enhanced Volatile Configuration Register sequence
completes. The device returns to the default working protocol (defined by the NVCR)
on the next power on.
Default/ Non- Volatile: This is default protocol on power up. By setting bit 3 of the
NVCR to 0, the device enters QIO-SPI protocol on the subsequent power-on. After all
subsequent power-on sequences, the device still starts in QIO-SPI protocol unless bit 3
of the NVCR is set to 1 (default value, corresponding to Extended SPI mode).
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