128Mb, 256Mb, 512Mb, 1Gb StrataFlash Memory
Flowcharts
Figure 46: Block Lock Operations Procedure
Start
Write 0x60,
block address
(Lock setup)
Write either
0x01/0xD0/0x2F,
block address
(Lock confirm)
(Read device ID)
Write 0x90
Read block
lock status
No
Locking
change?
Yes
Write 0xFF
partition address
(Read array)
Lock change
complete
Bus
Operation
Command Comments
WRITE
LOCK SETUP Data = 0x60
Address = Block to lock/unlock/lock-down
LOCK, UN- Data = 0x01 (BLOCK LOCK)
LOCK, or Data = 0xD0 (BLOCK UNLOCK)
LOCK-DOWN Data = 0x2F (LOCK-DOWN BLOCK)
CONFIRM Address = Block to lock/unlock/lock-down
READ DEVICE Data = 0x90
ID Address = Block address + offset 2
WRITE
WRITE (op-
tional)
READ (option- BLOCK LOCK Block lock status data
al)
STATUS
Address = Block address + offset 2
Idle
None
Confirm locking change on D[1, 0]
WRITE
READ ARRAY Data = 0xFF
Address = Block address
PDF: 09005aef8448483a
128_256_512_65nm_g18.pdf - Rev. F 8/11 EN
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