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M58WT032KB Datasheet(PDF) 105 Page - Numonyx B.V |
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M58WT032KB Datasheet(HTML) 105 Page - Numonyx B.V |
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105 / 117 page  M58WTxxxKT, M58WTxxxKB Flowcharts and pseudo codes 105/117 Figure 26. Locking operations flowchart and pseudo code 1. Any address within the bank can equally be used. Write 01h, D0h or 2Fh AI06176b Read Block Lock States YES NO Locking change confirmed? Start Write 60h (1) locking_operation_command (address, lock_operation) { writeToFlash (address, 0x60) ; /*configuration setup*/ /* see note (1) */ if (readFlash (address) ! = locking_state_expected) error_handler () ; /*Check the locking state (see Read Block Signature table )*/ writeToFlash (address, 0xFF) ; /*Reset to Read Array mode*/ /*see note (1) */ } Write FFh (1) Write 90h (1) End if (lock_operation==LOCK) /*to protect the block*/ writeToFlash (address, 0x01) ; else if (lock_operation==UNLOCK) /*to unprotect the block*/ writeToFlash (address, 0xD0) ; else if (lock_operation==LOCK-DOWN) /*to lock the block*/ writeToFlash (address, 0x2F) ; writeToFlash (address, 0x90) ; /*see note (1) */ |
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