Bureaucrats, dave_user, Administrators
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→eFuse locking
==== eFuse locking ====
The OTP eFuse registers should be locked in order to avoid unwanted registers (and then MAC addresses) modifications. OTP lock grants the MAC values cannot be modified anymore.
{{ImportantMessage|text=If not locked yet, OTP bits can be set to ''''1'''' but not reversed to ''''0'''' value, so some modifications can be applied if the eFuse registers are not locked.}}
The two MAC addresses - even if sharing register <code>bank:9 word:1</code> - can be programmed at different times.
