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QSPI NOR Flash type setting in BOOT_CFG eFuse

Question asked by Jian Li on Mar 19, 2018
Latest reply on Mar 19, 2018 by Wigros Sun

QSPI NOR Flash type setting in BOOT_CFG eFuse

 

What is "device supports 3B read by default" means? I cannot find on data sheet of flash memory ICs.

Say IS25WPxxx flash support "3B read, on fast read dual output "4B read" on unique ID number! What is it? N25Q32Axxx look like support both 3B (1-1-4 fast read command code) or 4B (4-4-4 fast read command code), which setting for it in BOOT_CFG2[2:0]?

Any help is appreciated!

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