I have problem on Attiny 2313 with powerdown mode.
It is conected on atmega128 via serial rx/tx, and when it is in POWERDOWN mode (probably) it's oscilator is still running!
I us external crystal 4 MHz. I was disable all fuse and only are enabled fuses for crystal and brown-out disabled.
It reduces it's current but oscilator work all time.
On Atmega 128 powerdown work without problem.
Any ideas ?
Thanks in advance,