Minimal Frequency of Operation

And daith is right that there is no minimum execution speed. All the cores are designed to be safely clock gated, which means they can effectively operate at frequencies all the way down to zero.

This seems to conflict with the article I quoted below, if dynamic logic is indeed used then there would be a minimum right? Of course still very much dependent on the implementation / process (and temperature!).  I do know they can safely run at very low speeds¹, but I would not feel comfortable completely gating their clock indefinitely at an arbitrary moment.  (Of course one would normally never stop the clock with a pipeline full of instructions, but rather at a WFI or such.)

¹1the TI SoC I use has an option to switch the cortex-A8 to run on the 32768 Hz RTC clock as a low power mode. Makes the serial console funny to use: all that's missing is the sound of an old TeleType.

And daith is right that there is no minimum execution speed. All the cores are designed to be safely clock gated, which means they can effectively operate at frequencies all the way down to zero.

This seems to conflict with the article I quoted below, if dynamic logic is indeed used then there would be a minimum right? Of course still very much dependent on the implementation / process (and temperature!).  I do know they can safely run at very low speeds¹, but I would not feel comfortable completely gating their clock indefinitely at an arbitrary moment.  (Of course one would normally never stop the clock with a pipeline full of instructions, but rather at a WFI or such.)

¹1the TI SoC I use has an option to switch the cortex-A8 to run on the 32768 Hz RTC clock as a low power mode. Makes the serial console funny to use: all that's missing is the sound of an old TeleType.