Data Erasure (Chip Erasure) - Fujitsu MB91319 Series Hardware Manual

19.6.3

Data Erasure (Chip Erasure)

This section explains how to issue Chip Erase commands to erase all items of data in
flash memory.
■ Data Erasure (Chip Erasure)
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.
CHAPTER 19 FLASH MEMORY
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