Falling on the heels of some fabulous ‘lets see what we can emulate on an AVR’ builds we’ve seen, [Dimitri] emulated an ARM Cortex-M0 on an 8-pin ATtiny85. The emulator is written entirely in AVR ...
When a WFI instruction is executed or when the processor enters sleep mode using the Sleep-On-Exit feature, the processor stops instruction execution and wakes up when an (higher priority) interrupt ...