M58LT128HSB8ZA6 NUMONYX [Numonyx B.V], M58LT128HSB8ZA6 Datasheet - Page 97

• Manufacturer Part Number: M58LT128HSB8ZA6
• Manufacturer: NUMONYX [Numonyx B.V]

M58LT128HST, M58LT128HSB
Figure 25. Protect/Unprotect operation flowchart and pseudo code
1. Any address within the bank can equally be used.
Write 60h (1)
Write 90h (1)
Protect State
Write FFh (1)
Read Block
confirmed?
Protection
01h, D0h
change
Write
Start
End
YES
NO
protect_operation_command (address, protect_operation) {
}
writeToFlash (address, 0xFF) ; /*Reset to Read Array mode*/
writeToFlash (address, 0x60) ; /*configuration setup*/
if (protect_operation==PROTECT) /*to protect the block*/
else if (protect_operation==UNPROTECT) /*to unprotect the block*/
if (readFlash (address) ! = protection_state_expected)
writeToFlash (address, 0x01) ;
writeToFlash (address, 0xD0) ;
writeToFlash (address, 0x90) ;
/*Check the protection state (see Read Block Signature table )*/
error_handler () ;
/*see note (1) */
/*see note (1) */
/* see note (1) */
Flowcharts and pseudo codes
AI12895
97/110