Fujitsu MB90460 Series Hardware Manual page 622

Figure 23.6-1 Example of Procedure of Writing the Data to the Flash Memory
0
Data
Write error
CHAPTER 23 512K / 1024K BIT FLASH MEMORY
Start the write
FMCS:WE (bit5)
Flash memory write
enabled
Write command sequence
1.FxAAAA XXAA
2.Fx5554 XX55
3.FxAAAA XXA0
4.Write address Write data
Internal address read
Data polling (DQ7)
Data
Time limit (DQ5)
1
Internal address read
Data polling (DQ7)
Data
Last address
FMCS:WE(bit5)
Flash memo ry write disabled
Write completion
Next address
Data
Verification using
the hardware sequence flag
603