CHAPTER1: Flash Memory
3. Operations
P E R I P H E R A L M A N U A L
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S6E1Cx_MN710-00016-1v0-E, August 31, 2015
CONFIDENTIAL
3.2.3
Flash Erase Operation
This section explains the flash erase operation.
All sectors in flash memory can be erased in one batch. Erasing all of the sectors in one batch is called flash
erase.
The automatic algorithm can be activated and all of the sectors can be erased in one batch by sending the
flash erase command sequentially to the target sector.
See Section "3.1 Automatic Algorithm" for details on the flash erase command.
1. Issue the flash erase command sequentially
The automatic algorithm is activated and the flash erase operation of the flash memory begins.
2. Confirm Flash Status Register (FSTR)
After Flash Erase Command issued, the RDY bit of the Flash Status Register becomes "0". At this
time, the flash memory becomes pre-erasing internal operation status and CERS bit is held to be "0".
After erasing operation is started, the CERS bit is set to "1".
After the flash erase is completed, the RDY bit and CERS bit are cleared to "1" and "0" respectively.
