In context of Pro Mini and ATMega2560
Fuses, as documented in chip factory doc are complex topics (I have not really used it before), appreciate pointers and advises, to narrow down those that are needed for contexted task and left un-needed in their default modes.
Which fuses are used within context of the IDE in general, and in specific of software loading via bootloader and ISP?
Which fuses related to sleep and power down modes, in context that individual chip modules can be set to various power-saving modes via registers. Does fuses play a part in getting the power-saving effect?
Many thanks in advance