I would like to run the RTC in a Mega4809 at 32KHz to get 10Hz ticks. I think the hardware makes this possible.
BUT, it is NOT clear that it will accept a 32,000Hz crystal. At various points in the Manual, it refers to 32.768KHz and, at others, 32KHz. In the Data Sheet, it calls out that external resonator oscillator as TYPICALLY 32.768KHz.
Does anyone know whether it will actually work at 32.000KHz? If it does work, then whether or not the crystal requirements (such as ESR) are consistent for both frequencies?