PC28F256P30BFA Datasheet, PDF (70/98 Pages) Micron Technology – Micron Parallel NOR Flash Embedded Memory (P30-65nm)

256Mb and 512Mb (256Mb/256Mb), P30-65nm
Flowcharts
Figure 19: Buffered Enhanced Factory Programming (BEFP) Procedure
Setup Phase
Start
Issue BEFP SETUP
Data = 0x80
Issue BEFP CONFIRM
Data = 00D0h
BEFP setup
delay
Read status
register
BEFP setup ^{Yes (SR7 = 0)}
done?
No (SR7 = 1)
SR error-handler
user-defined
Exit
Program and Verify Phase
Read status
register
Buffer ready?
No (SR0 = 1)
Yes (SR0 = 0)
Write data
word to buffer
Buffer full?
No
Yes
Read status
register
Program
done?
No (SR0 = 1)
Yes (SR0 = 0)
Yes
Program
more data
?
No
Write 0xFFFF
outside block
Exit Phase
Read status
register
BEFP exited? _{No (SR7 = 0)}
Yes (SR7 = 1)
Full status
register check
for errors
Finish
PDF: 09005aef84566799
p30_65nm_MLC_256Mb-512mb.pdf - Rev. C 12/13 EN
70
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