PC28F256P30TFA Datasheet, PDF (74/95 Pages) Micron Technology – Micron Parallel NOR Flash Embedded Memory (P30-65nm)

Figure 25: Status Register Procedure
256Mb and 512Mb (256Mb/256Mb), P30-65nm
Flowcharts
Start
Command Cycle
- Issue STATUS REGISTER command
- Address = any device address
- Data = 0x70
Data Cycle
- Read Status Register SR[7:0]
No
SR[7] = 1
Yes
SR[6] = 1
No
SR[2] = 1
No
Yes
Erase Suspend
See Suspend/
Resume Flowchart
Yes
Program Suspend
See Suspend/
Resume Flowchart
Yes
SR[5] = 1
No
SR[4] = 1
Yes
Error
No
Erase failure
Error
Command
sequence
SR[4] = 1
No
Yes
Error
Program failure
Yes
SR[3] = 1
No
SR[1] = 1
Yes
Error
V_PEN/V_PP <
V_PENLK/V_PPLK
Error
Block locked
No
End
PDF: 09005aef84566799
p30_65nm_MLC_256Mb-512mb.pdf - Rev. A 1/13 EN
74
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