128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory
Flowcharts
Figure 48: Protection Register Programming Full Status Check Procedure
Read status
register data
1
1
1
V
PP range
SR3 =
0
error
Program
error
SR4 =
0
Register locked;
program aborted
SR1 =
0
Program
successful
Bus
Operation
Command Comments
Idle
Idle
Idle
None
None
None
Check SR3
1 = VPP error
Check SR4
1 = Programming error
Check SR1
1 = Register locked; operation aborted
1. Only the CLEAR STAUS REGISTER command clears SR[1, 3, 4].
Notes:
2. If an error is detected, clear the status register before attempting a program retry or
other error recovery.
PDF: 09005aef8448483a
128_256_512_65nm_g18.pdf - Rev. F 8/11 EN
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