Fuses

Introduced in version 1.00

Address : 0100 (bank 1, register 00)

Size : 1 byte

Default : 00

Description

Locks the constants and other features

Bit	Role	Values
7	RFU
6	RFU
5	Lock the factory-defined X509 certificates (`0A` to `0F`)	`0` : Not locked `1` : Locked
4	Lock the product’s main ECC key (ATECC keys `0A` to `0D`)	`0` : Not locked `1` : Locked
3	Lock Authenticity Seal	`0` : Not locked `1` : Locked
2	Lock Secure Elements	`0` : Not locked `1` : Locked
1	Lock factory config	`0` : Not locked `1` : Locked
0	Lock constants	`0` : Not locked `1` : Locked