ATMEL Chip Programming

 

Select the target MCU chip, the program prompts the relevant adapter. Meanwhile, dispaly the options to select the lock bit:

 

 

 

MCS-51encryption setup, lock bit functions:
No LockBit:no
LockBit1:forbiden MOVC instruction and programming again. 
LockBit1+2:include the above functions and forbiden test (forbiden readout FLASH)
LockBit1+2+3:include the above functions and forbiden external program memory