Fujitsu 8FX Hardware Manual page 574

CHAPTER 26 DUAL OPERATION FLASH MEMORY
26.5 Programming/Erasing Flash Memory
Figure 26.5-1 Sample Procedure for Programming to Flash Memory
Program error
552
Start of programming
FSR:WRE
Enable Flash memory programming.
SWRE0
Enable/disable programming data to a sector.
(Write "0" to disable programming data or "1" to enable
programming data to a sector.)
Programming command sequence
(1) 0xUAAA 0xAA
(2) 0xU554 0x55
(3) 0xUAAA 0xA0
(4) Program address
Read internal address.
Data polling
(DQ7)
Data
0
Execution timeout
(DQ5)
Read internal address.
Data
Data polling
(DQ7)
Data
Last address?
FSR:WRE
Disable Flash memory programming.
End of programming
FUJITSU SEMICONDUCTOR LIMITED
Program data
Data
1
NO
YES
MB95630H Series
Next address
MN702-00009-2v0-E