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CHAPTER 23 512K / 1024K BIT FLASH MEMORY
Figure 23.6-2 Example of Procedure of Deleting the Sector from the Flash Memory
606
FMCS:WE(bit5)
Flash memory deletion enabled
Input the code to the sector to be
deleted. (30
Sector deletion
completion
Delete error
FMCS:WE(bit5)
Flash memory deletion disabled
Verification using
the hardware sequence flag
Start the deletion.
Deletion command sequence
XXAA
1. FFAAAA
2. FF5554
XX55
XX80
3. FFAAAA
4. FFAAAA
XXAA
5. FF5554
XX55
)
H
Is there another sector
to be deleted?
Internal adress read 1
Internal adress read 2
Toggle (DQ6)
Data 1 = Data 2
Time limit (DQ5)
Internal adress read
Internal adress read
Toggle bit (DQ6)
Data 1 = Data 2
Last sector
Deletion completion
Next sector
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