Fujitsu FR81S User Manual
CHAPTER 46: WORKFLASH MEMORY
5. Operation
FUJITSU SEMICONDUCTOR LIMITED
CHAPTER : WORKFLASH MEMORY
FUJITSU SEMICONDUCTOR CONFIDENTIAL
30
-It appears to have been written as "1".
However, even if it appears to have been written as "1", the actual data remains "0" and "0" will be read
out when the data is read in read/reset mode. If you want to return data to "1", perform a chip erase or
sector erase.
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During write operations, all commands written to the flash memory are ignored.
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If this series is reset during a write, the data that was written cannot be guaranteed.
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Because this series has the ECC bit added, data always needs to be written as 32-bit by two
16-bit writes. See "5.2 Writing Flash Memory" for procedure.
MB91520 Series
MN705-00010-1v0-E
2001