AVR-Chat

--- In AVR-Chat@yahoogroups.com, Brian Dean <bsd@b...> wrote:

> ... whey even have the option of
> disabling the SPI programming interface?

I agree with Brian that the lock bits are the main security 
mechanism. So, how about another guess ... maybe if you're using the 
SPI pins for something else, you would worry that you'd accidentally 
trigger SPI and mess up the chip. By disabling SPI, you make this 
impossible and get to sleep better.

Graham.