Fujitsu MB91319 Series Hardware Manual page 678

CHAPTER 19 FLASH MEMORY
Write error
656
Figure 19.6-1 Example of Write Procedure (Half-Word Access)
Writing start
Enable writing to flash memory
with WE (bit 5) in FLCR.
Write command sequence
AAAAA AAAA
A5555 5555
AAAAA A0A0
Write address
Read internal address.
Data polling (DPOLL)
Data
0
Time limit (TLOVER)
Read internal address.
Data
Data polling (DPOLL)
Data
Last address
Disable writing to flash memory
with WE (bit 5) in FLCR.
Writing completion
write data
Data
1
No
Yes
Next address
Check hardware sequence flag