m36w832te STMicroelectronics, m36w832te Datasheet - Page 59

• Manufacturer Part Number: m36w832te
• Description: 32 Mbit 2mb X16, Boot Block Flash Memory And 8 Mbit 512kb X16 Sram, Multiple Memory Product
• Manufacturer: STMicroelectronics

Figure 32. Locking Operations Flowchart and Pseudo Code
01h, D0h or 2Fh
Read Status
confirmed?
Write FFh
Write 60h
Write 90h
Register
Locking
change
Write
Start
End
YES
NO
locking_operation_command (address, lock_operation) {
}
writeToFlash (any_address, 0xFF) ; /*Reset to Read Array mode*/
writeToFlash (any_address, 0x60) ; /*configuration setup*/
if (lock_operation==PROTECT) /*to protect the block*/
else if (lock_operation==UNPROTECT) /*to unprotect the block*/
else if (lock_operation==LOCK) /*to lock the block*/
if (readFlash (address) ! = locking_state_expected)
writeToFlash (address, 0x01) ;
writeToFlash (address, 0xD0) ;
writeToFlash (address, 0x2F) ;
writeToFlash (any_address, 0x90) ;
/*Check the locking state (see Read Block Signature table )*/
error_handler () ;
M36W832TE, M36W832BE
AI90179
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