PC28F512G18FF Datasheet, PDF (106/118 Pages) Micron Technology – 128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory

128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory
Flowcharts
Figure 48: Protection Register Programming Full Status Check Procedure
Read status
register data
SR3 =
1
0
V_PP range
error
SR4 =
1
0
Program
error
SR1 =
1
Register locked;
program aborted
0
Program
successful
Bus
Operation
Idle
Idle
Idle
Command
None
None
None
Comments
Check SR3
1 = V_PP error
Check SR4
1 = Programming error
Check SR1
1 = Register locked; operation aborted
Notes: 1. Only the CLEAR STAUS REGISTER command clears SR[1, 3, 4].
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
106
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