Fujitsu F2MC-16LX Hardware Manual page 376

CHAPTER 23 1M-BIT FLASH MEMORY
Figure 23.7-1 Example of the Procedure for Flash Memory Writing
Write error
360
Start of writing
FMCS: WE (bit5)
Flash memory writing
enabled
Write command sequence
(1) FxAAAA <-- XXAA
(2) Fx5554 <-- XX55
(3) FxAAAA <-- XXA0
(4) Write address <-- Write data
Internal address reading
Data polling (DQ7)
Data
0
Timing limit (DQ5)
1
Internal address reading
Data
Data polling (DQ7)
Data
Last address
FMCS: WE (bit5)
Flash memory writing
disabled
Completion of writing
Next address
Data
Confirmation by the
hardware sequence flag