Fuses are bits which you can programm to change some settings of your microcontroller, like frequency, start up time etc.
It's better to always check datasheet before changing them, they can differ from MC to MC.
Atmel uses this notation: 0 = ON, 1 = OFF, that's the way the write their datasheets, also different programms for loading .hex in MC use different notation.
It's better to always check datasheet before changing them, they can differ from MC to MC.
Atmel uses this notation: 0 = ON, 1 = OFF, that's the way the write their datasheets, also different programms for loading .hex in MC use different notation.