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M58LT128HST データシート(PDF) 97 Page - STMicroelectronics

部品番号 M58LT128HST
部品情報  128-Mbit (8 Mb 횞16, Multiple Bank, Multilevel interface, Burst) 1.8 V supply, Secure Flash memories
PDF  110 Pages
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メーカー  STMICROELECTRONICS [STMicroelectronics]
ホームページ  http://www.st.com
Logo STMICROELECTRONICS - STMicroelectronics

M58LT128HST データシート(HTML) 97 Page - STMicroelectronics

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 97 / 110 page
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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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