AM623: Timing WKUP_CLKOUT0

This IO cell associated with this pin will not be turned on until MCU_PORz has been released, reset propagates through the device, and enables the IO. This time is not defined, but it should be very soon after the rising edge of MCU_PORz.

Note: The first clock cycle may be short or a glitch since the IO buffer is being turned on asynchronous to the clock. Any device using this clock needs to be held in reset for a few clock cycles after the IO turns on to ensure the attached device is not over-clocked by a short cycle.

FYI, on the AM62x, the WKUP_CLKOUT0 output defaults to 25M and the Mux is required to be configured for the required frequency.

Regards,
Paul