Data Erasure (Chip Erasure) - Fujitsu FR60 Hardware Manual

17.5.3

Data Erasure (Chip Erasure)

This section explains how to issue chip erase commands to erase all items of data in
flash memory.
■ Erasing Data (Chip Erase) From Flash Memory
All items of data can be erased from flash memory by continuously sending chip erase commands (listed in
the command sequence table) to target sectors in flash memory.
Six bus operations are necessary to execute a chip erase operation. The operation starts when the sixth write
cycle is completed. The user need not write any value to flash memory before chip erase operation. Flash
memory automatically writes "0" to erase all cells during the automatic erase algorithm is being executed.
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