6.10 Configuring Debug Lock

The DEBUG_LCK[1:0] bits in FSECCFG[7:6] eFuse at 0x0000 offset address determine if the device is locked for debug. If the DEBUG_LCK[1:0] bits are non-zero, the device is a secured device. On a secured device, programming is still possible but debugging is completely locked because these bits are in eFuse.

Follow the procedure mentioned in eFuse Programming Sequence with the eFuse offset address at 0x0000 to write these bits.