Fujitsu MB90895 Series Hardware Manual page 620

CHAPTER 19 512 KBIT FLASH MEMORY
Programming error
602
Figure 19.8-1 Example of Data Programming Procedure
Start
FMCS: WE (bit5)
Programming enabled
FFWR0/1
Accidental write preventive function setting
(Accidental write preventive sector: 0,
writing sector
Program command sequence
(1)FFUAAA XXAA
(2)FFU554 XX55
(3)FFUAAA XXA0
(4)Program address
Internal address read
Data polling
(DQ7)
Data
0
Timing limit
(DQ5)
Internal address read
Data
Data polling
(DQ7)
Data
Last address
FMCS: WE (bit5)
Programming enabled
Completed
:1 )
Program data
Data
1
NO
YES
Next address