TXZ Family
Flash Memory
2018-06-05
57 / 120
Rev. 2.0
4.1.3.7. Automatic Protect Bit Erasing
(1)
Operation
The automatic protect bit erasing command erase the protect bit regardless of the security state of the flash
memory.
For details of the protection function, refer to “4.1.6Protection Function”.
Another command sequence is not accepted during automatic operation.
After erased, flash memory returns to command sequence input mode.
(2)
How to set
Input a automatic protect bit erasing command sequence. After the command sequences are input, the
automatic protect bit erasing starts.
All protect bits are erased at one time. Whether the protect bits are erased normally, please check the
[FCPSRn]
.
4.1.3.8. Automatic Security Bit Programming
(1)
Operation
The automatic security bit programming set “1” to the security bit. When clear “0” to the security bit, use the
automatic security bit erasing command.
For details of the security function, refer to “4.1.7Security Function”.
Another command sequence is not accepted during automatic operation.
After programmed, flash memory returns to command sequence input mode.
(2)
How to set
Input a security bit programming command sequence. After the command sequences are input, the automatic
security bit programming starts. Security bit is enabled after system reset. When security is enabled,
debugging tool cannot connect.
