Fujitsu F2MC-8FX Hardware Manual page 551

Figure 28.6-1 Sample Procedure for Programming into Flash Memory
FSR: WRE (bit1)
Writable flash memory.
Programming command
sequence
(1) UAAA ← AA
(2) U554 ← 55
(3) UAAA ← A0
(4) Write address ← Write data
0
Data
Write error
FSR: WRE (bit1)
Write-disable flash memory.
Start of writing
Read internal address.
Data polling
(DQ7)
Data
Timing limit
(DQ5)
1
Read internal address.
Data polling
(DQ7)
Data
Last address?
YES
End of writing
CHAPTER 28 256-KBIT FLASH MEMORY
Next address
Data
NO
537