Yeah?
This caught my attention for the first time today:
![](https://cdn.hackaday.io/images/8757811672797471945.jpg)
Atmega8515, which I've been using for some twenty years...
"Fully Static Operation"
https://en.m.wikipedia.org/wiki/Static_core
I especially like the simplicity of the following:
https://community.arm.com/support-forums/f/keil-forum/19230/fully-static-operation
"Stop the clock and it will happely keep waiting until you are so kind to provide a clock pulse again."
That's how I understood it...
I guess it caught my attention now because I've been gaining interest in single-stepping CPUs.
BUT:
I *distinctly* recall seeing that the clock can't vary too much from cycle to cycle, so had to look it up.
![](https://cdn.hackaday.io/images/7232931672797758553.jpg)
(Same datasheet)
Right... So then... What're you supposed to change suddenly to realize this "Fully Static Operation," the internal RC clock? An external two-pin crystal?
I don't get it.
Maybe it has to do with sleep/powerdown modes, but I wouldn't exactly call something "fully" if you have to go through hoops to realize it.
Beware!
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