0 0 lfuse CKSEL0 0 Select Clock source 1 1 lfuse CKSEL1 1 Select Clock source 2 2 lfuse CKSEL2 0 Select Clock source 3 3 lfuse CKSEL3 1 Select Clock source 4 4 lfuse SUT0 0 Select start-up time 5 5 lfuse SUT1 1 Select start-up time 6 6 lfuse CKOUT 1 Clock Output Enable 7 7 lfuse CKDIV8 0 Divide clock by 8 8 0 hfuse BODLEVEL0 1 Brown-out Detector trigger level 9 1 hfuse BODLEVEL1 1 Brown-out Detector trigger level 10 2 hfuse BODLEVEL2 1 Brown-out Detector trigger level 11 3 hfuse EESAVE 1 EEPROM memory is preserved through the Chip Erase 12 4 hfuse WDTON 1 Watchdog Timer always on 13 5 hfuse SPIEN 0 Enable Serial Program and Data Downloading 14 6 hfuse DWEN 1 DebugWIRE Enable 15 7 hfuse RSTDISBL 1 External Reset disable 16 0 efuse SELFPRGEN 1 Self-Programming Enable