128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory
Flowcharts
Figure 44: Block Erase Full Status Check Procedure
Read status
register
1
V
PP range
SR3 =
0
error
1, 1
Command
sequence error
SR4, 5 =
0
1
Block erase
error
SR5 =
0
1
Block locked
error
SR1 =
0
Block erase
successful
Bus
Operation
Command Comments
Idle
Idle
Idle
Idle
None
None
None
None
Check SR3
1 = VPP range error
Check SR[4, 5]
Both 1 = Command sequence error
Check SR5
1 = Block erase error
Check SR1
1 = Attempted erase of locked block; erase aborted
1. Only the CLEAR STAUS REGISTER command clears the SR[1, 3, 4, 5].
Notes:
2. If an error is detected, clear the status register before attempting an erase retry or other
error recovery.
PDF: 09005aef8448483a
128_256_512_65nm_g18.pdf - Rev. F 8/11 EN
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