PF38F5070M0Q0B0 NUMONYX [Numonyx B.V], PF38F5070M0Q0B0 Datasheet - Page 109

• Manufacturer Part Number: PF38F5070M0Q0B0
• Manufacturer: NUMONYX [Numonyx B.V]

Numonyx™ StrataFlash
Figure 60: Blank Check Operation Flowchart
April 2008
309823-10
Blank Check
Read Status
Block Address
Block Address
Successful
Check Status
Blank Check
Read Status
SR[4,5] =
Write 0xBC,
Write 0xD0,
Register
Full Blank
SR[5] =
Register
SR[7] =
Read
Start
0
0
0
1
1,1
1
®
Cellular Memory (M18)
0
Sequence Error
Blank Check
Command
FULL BLANK CHECK STATUS CHECK PROCEDURE
Error
No
BLANK CHECK PROCEDURE
Operation
SR[1,3] must be cleared before the Write State Machine will
allow Blank Check to be performed.
Only the Clear Status Register command clears SR[1, 3, 4, 5].
If an error is detected, clear the Status register before
attempting a Blank Check retry or other error recovery.
Operation
Repeat for subsequent block Blank Check.
Full Status register check should be read after Blank Check
has been performed on each block.
Bus
Idle
Idle
Write
Write
Read
Bus
Idle
Command
Command
Confirm
None
None
Check
Check
Blank
Setup
Blank
None
None
Check SR[4,5]:
Both 1 = Command Sequence Error
Check SR[5]:
1 = Blank Check Error
Data = 0xBC
Addr = Block to be read (BA)
Data = 0xD0
Addr = Block to be read (BA)
Status Register data.
Check SR[7]:
1 = WSM ready
0 = WSM busy
Comments
Comments
Datasheet
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