0 7 lfuse BODLEVEL 1 Brown out detector trigger level 1 6 lfuse BODEN 1 Brown out detector enable 2 5 lfuse SUT1 0 Select start-up time 3 4 lfuse SUT0 0 Select start-up time 4 3 lfuse CKSEL3 0 Select Clock Source 5 2 lfuse CKSEL2 0 Select Clock Source 6 1 lfuse CKSEL1 0 Select Clock Source 7 0 lfuse CKSEL0 1 Select Clock Source