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28F008C3 Datasheet(PDF) 44 Page - Intel Corporation |
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28F008C3 Datasheet(HTML) 44 Page - Intel Corporation |
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44 / 59 page ![]() 3 VOLT ADVANCED+ BOOT BLOCK E 44 PRODUCT PREVIEW Start Write 60H (Configuration Setup) Read Status Register No Comments Data = 60H Addr = X SR.4, SR.5 = Write 90H (Read Configuration) Read Block Lock Status Locking Change Confirmed? Locking Change Complete 0,0 Check Status Register 80H = no error 30H = Lock Command Sequence Error Bus Operation Write Command Program Suspend 1,1 Write 01H, D0H, or 2FH Status Register Data Addr = X Write Write Read (Optional) Standby (Optional) Data= 01H (Lock Block) D0H (Unlock Block) 2FH (Lockdown Block) Addr=Within block to lock Command Program Suspend Config. Setup Lock, Unlock, or Lockdown Write 70H (Read Status Register) Lock Command Sequence Error Data = 70H Addr = X Write (Optional) Read Status Register Data = 90H Addr = X Write (Optional) Read Configuration Block Lock Status Data Addr = Second addr of block Read (Optional) Block Lock Status Confirm Locking Change on DQ 1, DQ0. (See Block Locking State Table for valid combinations.) Standby (Optional) Figure 16. Locking Operations Flowchart |
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