S25FL128S Datasheet, PDF (78/153 Pages) SPANSION – MirrorBit® Flash Non-Volatile Memory CMOS 3.0 Volt Core with Versatile I/O Serial Peripheral Interface with Multi-I/O

Data Sheet
array sectors that are protected from program and erase operations. There are commands to control which
individual flash memory array sectors are protected from program and erase operations.
10.1.8
Reset
There is a command to reset to the default conditions present after power on to the device. There is a
command to reset (exit from) the Enhanced Performance Read Modes.
10.1.9
Reserved
Some instructions are reserved for future use. In this generation of the S25FL128S and S25FL256S some of
these command instructions may be unused and not affect device operation, some may have undefined
results.
Some commands are reserved to ensure that a legacy or alternate source device command is allowed
without affect. This allows legacy software to issue some commands that are not relevant for the current
generation S25FL128S and S25FL256S devices with the assurance these commands do not cause some
unexpected action.
Some commands are reserved for use in special versions of the FL-S not addressed by this document or for
a future generation. This allows new host memory controller designs to plan the flexibility to issue these
command instructions. The command format is defined if known at the time this document revision is
published.
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S25FL128S and S25FL256S
S25FL128S_256S_00_05 July 12, 2012