Details Of Programming/Erasing Flash Memory - Fujitsu MB90335 Series Hardware Manual

MB90335 Series
22.7

Details of Programming/Erasing Flash Memory

This section explains the procedure for inputting commands starting the automatic
algorithm, and for read/reset of flash memory, programming, chip erasing, sector
erasing, sector erasing suspension and sector erasing resumption.
■ Detailed Explanation of Programming and Erasing Flash Memory
The automatic algorithm can be started by programming the command sequence of read/reset, programming,
chip erasing, sector erasing, sector erasing suspension and erasing resumption from CPU to flash memory.
Programming flash memory from the CPU should always be performed continuously. The termination of
the automatic algorithm can be checked by the data polling function. After normal termination, it returns to
the read/reset state.
Each operation is explained in the following order.
• Read/reset state
• Data programming
• All data erasing (chip all erase)
• Any data erasing (sector erase)
• Sector erasing suspension
• Sector erasing resumption
CM44-10137-6E FUJITSU MICROELECTRONICS LIMITED
CHAPTER 22 DUAL OPERATION FLASH MEMORY
22.7 Details of Programming/Erasing Flash Memory
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