28F640L18 Datasheet, PDF (91/106 Pages) Intel Corporation – StrataFlash Wireless Memory

Intel StrataFlash® Wireless Memory (L18)
Figure 45. Block Lock Operations Flowchart
LOCKING OPERATIONS PROCEDURE
Start
Write 0x60,
Block Address ^{(Lock Setup)}
Bus
Operation
Command
Comments
Write
Lock Data = 0x60
Setup Addr = Block to lock/unlock/lock-down
Write either
0x01/0xD0/0x2F, (Lock Confirm)
Block Address
Write
Lock, Data = 0x01 (Block Lock)
Unlock, or
0xD0 (Block Unlock)
Lock-Down
0x2F (Lock-Down Block)
Confirm Addr = Block to lock/unlock/lock-down
Write 0x90 (Read Device ID)
Write
Read Data = 0x90
(Optional) Device ID Addr = Block address + offset 2
Read Block
Lock Status
Read Block Lock Block Lock status data
(Optional) Status Addr = Block address + offset 2
Locking No
Change?
Yes
Write 0xFF
Partition Address ^{(Read Array)}
Idle
None Confirm locking change on D[1,0].
Write
Read Data = 0xFF
Array Addr = Block address
Lock Change
Complete
Datasheet
Intel StrataFlash® Wireless Memory (L18)
Order Number: 251902, Revision: 009
April 2005
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