Lockbits

The default value given in this fuse description is the factory-programmed value and should not be mistaken for the Reset value.
Name:
LOCKBIT
Offset:
0x0A
Reset:
0xC5
Access:
-
Bit76543210
LOCKBIT[7:0]
AccessRRRRRRRR
Reset11000101

Bits 7:0 – LOCKBIT[7:0]: Lockbits

Lockbits

The UPDI cannot access the system bus when the part is locked. The UPDI can then only read the internal Control and Status (CS) space of the UPDI and the Asynchronous System Interface (ASI). Refer to the UPDI section for additional details.

ValueDescription
0xC5 Valid key - the device is open
other Invalid key - the device is locked