Detailed Explanation On The Flash Memory Write/Delete - Fujitsu MB90460 Series Hardware Manual

CHAPTER 23 512K / 1024K BIT FLASH MEMORY
23.6

Detailed Explanation on the Flash Memory Write/Delete

This section explains the procedures for issuing the command to start the automatic
algorithm, reading/resetting the flash memory, writing the data to the flash memory,
deleting the chip, deleting the sector, temporarily stopping the sector deletion, and
restarting the sector deletion.
■ Detailed Explanation on the Flash Memory Write/Delete
The read/reset, write, chip deletion, sector deletion, sector deletion temporary stop, or deletion start
operation can be performed by the automatic algorithm which can be started by setting the command
sequence (see "23.4 Method of Starting the Automatic Algorithm in Flash Memory") to each bus write
cycle. The write cycles to the respective buses must be executed continuously. The ending time of the
automatic algorithm can be notified by the data polling function and so on. After the normal end of the
automatic algorithm, the flash memory returns to the read/reset status.
23.6.1 Setting the Read/Reset Status
23.6.2 Writing the Data
23.6.3 Deleting the Data (Chip Deletion)
23.6.4 Deleting the Data (Sector Deletion)
23.6.5 Temporarily Stopping the Sector Deletion
23.6.6 Restarting the Sector Deletion
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