Motorola MC68HC908 family password protection

For example, in the Motorola MC68HC908 family, password protection is used, and in

the Motorola MC68HC705B family, the security fuse is located in the first byte of the

data EEPROM memory. Both variants have relatively high security, because it is

extremely difficult to find the physical location of the fuse or password and reset

them. At the same time, people want to copy MCU firmware can try using glitch mcu

firmware copy to override the security check subroutine, or use power analysis to see

whether a password guess is correct or not.
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