Fujitsu 8FX

MB95630H Series
MN702-00009-2v0-E FUJITSU SEMICONDUCTOR LIMITED 549
CHAPTER 26 DUAL OPERATION FLASH MEMORY
26.5 Programming/Erasing Flash Memory
26.5 Programming/Erasing Flash Memory
This section describes the respective procedures for reading/resetting the
Flash memory, programming, chip-erasing, sector-erasing, sector erase
suspending and sector erase resuming by entering respective commands to
invoke the automatic algorithm.
■ Details of Programming/Erasing Flash Memory
The automatic algorithm can be invoked by programming the read/reset, program, chip erase,
sector erase, sector-erase suspend, and sector erase resume command sequence to the Flash
memory from the CPU. Always write the commands of a command sequence continuously
from the CPU to the Flash memory. The termination of the automatic algorithm can be checked
by the data polling function. After the automatic algorithm terminates normally, the Flash
memory returns to the read/reset state.
The operations are explained in the following order:
• Enter the read/reset state
• Program data
• Erase all data (chip erase)
• Erase arbitrary data (sector erase)
• Suspend sector erase
• Resume sector erase
• Unlock bypass program