Fujitsu MB96300 series Hardware Manual page 884

F2mc-16fx 16-bit
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CHAPTER 33 FLASH MEMORY
Figure 33.7-2 Example of the flash memory sector erase procedure
Sector erase timer (DQ3)
Read internal address
Note:
The address sss must point to the flash memory sector on which the command is meant to operate.
876
(M/S)FMCS:WE (bit 3)
Enable flash memory erase
Erase command sequence
(1) sssAAA <-- XXAA
(2) sss554 <-- XX55
(3) sssAAA <-- XX80
1
(4) sssAAA <-- XXAA
(5) sss554 <-- XX55
0
(6) Enter code to erase sector
(30H)
Y
Another erase sector
Read internal address 1
Read internal address 2
data 1(DQ6) = data 2(DQ6)
0
Read internal address 1
Read internal address 2
N
data 1(DQ6) = data 2(DQ6)
Erase error
(M/S)FMCS:WE (bit 3)
Disable flash memory erase
Start erasing
N
Toggle bit (DQ6)
Y
N
Timing limit (DQ5)
1
Toggle bit (DQ6)
Y
N
Final sector
Y
Complete erasing
Next sector
Confirm with the hardware
sequence flags.

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