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M58LT128HST Datasheet(PDF) 97 Page - STMicroelectronics |
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M58LT128HST Datasheet(HTML) 97 Page - STMicroelectronics |
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97 / 110 page  M58LT128HST, M58LT128HSB Flowcharts and pseudo codes 97/110 Figure 25. Protect/Unprotect operation flowchart and pseudo code 1. Any address within the bank can equally be used. Write 01h, D0h AI12895 Read Block Protect State YES NO Protection change confirmed? Start Write 60h (1) protect_operation_command (address, protect_operation) { writeToFlash (address, 0x60) ; /*configuration setup*/ /* see note (1) */ if (readFlash (address) ! = protection_state_expected) error_handler () ; /*Check the protection 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 (protect_operation==PROTECT) /*to protect the block*/ writeToFlash (address, 0x01) ; else if (protect_operation==UNPROTECT) /*to unprotect the block*/ writeToFlash (address, 0xD0) ; writeToFlash (address, 0x90) ; /*see note (1) */ |
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