256Mb, 3V Multiple I/O Serial Flash Memory
Internal Configuration Register
Internal Configuration Register
The memory configuration is set by an internal configuration register that is not directly
accessible to users.
The user can change the default configuration at power up by using the WRITE NON-
VOLATILE CONFIGURATION REGISTER. Information from the nonvolatile configura-
tion register overwrites the internal configuration register during power-on or after a re-
set.
The user can change the configuration during operation by using the WRITE VOLATILE
CONFIGURATION REGISTER or the WRITE ENHANCED VOLATILE CONFIGURATION
REGISTER commands. Information from the volatile configuration registers overwrite
the internal configuration register immediately after the WRITE command completes.
Figure 14: Internal Configuration Register
Nonvolatile configuration register
Volatile configuration register and
enhanced volatile configuration register
Register download is executed only during
the power-on phase or after a reset,
overwriting configuration register settings
on the internal configuration register.
Register download is executed after a
WRITE VOLATILE OR ENHANCED VOLATILE
CONFIGURATION REGISTER command,
overwriting configuration register
Internal configuration
register
settings on the internal configuration register.
Device behavior
CCMTD-1725822587-3368
mt25q-qljs-L256-ABA-xxT.pdf - Rev. K 07/18 EN
Micron Technology, Inc. reserves the right to change products or specifications without notice.
© 2014 Micron Technology, Inc. All rights reserved.
27
MICRON [ MICRON TECHNOLOGY ]
