Rev. 1.0, 09/02, page 464 of 568
Erase start
Set EBR1 and EBR2
Enable WDT
Disable WDT
Read verify data
Increment address
Verify data = all 1s?
Last address of block?
All erase block erased?
Set block start address as verify address
H'FF dummy write to verify address
SWE bit
←
1
n
←
1
ESU1 bit
←
1
E1 bit
←
1
Wait 1
µ
s
Wait 100
µ
s
E1 bit
←
0
EV1 bit
←
1
Wait 10
µ
s
ESU1 bit
←
0
Wait 10
µ
s
Wait 10
µ
s
Wait 20
µ
s
EV1 bit
←
0
n
←
n + 1
Wait 4
µ
s
SWE bit
←
0
Wait 100
µ
s
EV1 bit
←
0
n
≤
100?
Wait 4
µ
s
SWE bit
←
0
Wait 100
µ
s
Erase failure
End of erasing
Wait 2
µ
s
No
No
Yes
Yes
No
No
Yes
Yes
Figure 19.10 Erase/Erase-Verify Flowchart
Summary of Contents for H8S/2627
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