Fujitsu F2MC-8L F202RA Hardware Manual page 386

CHAPTER 17 FLASH MEMORY
Write error
370
Figure 17.5-1 Example of the Flash Memory Write Procedure
FMCS: WE (bit5)
Enable flash memory write
Write command sequence
(1) FAAA <-- AA
(2) F554 <-- 55
(3) FAAA <-- A0
(4) Write address <-- Write data
Read internal address
Data polling (DQ7)
Data
0
Timing limit (DQ5)
Read internal address
Data
Data polling (DQ7)
FMCS: WE (bit5)
Write-disable flash memory.
Start writing*
*
Data
1
Data
NO
Final address
YES
Complete writing
Make sure +10V DC voltage
is applied at the RST pin before
start writing
Next address
Confirm with the hardware
sequence flags.