Missing features, Known Issues, limitations Allows wake-up at a specific second within the 136 years (32-bit alarm).32-bit seconds counter holds the real time and allows on-demand reload whenever current time of the RTC is set.4-bit fraction counter keeps track of the static crystal errors in one second that is less than one oscillator tick.16-bit tick counter creates one second based on the crystal clock.Keeps track of time within a window of more than 136 years (232 seconds) from a reference point.Includes logic to correct the static fractional inaccuracy of the oscillator.Includes the means for periodic software calibration of the RTC.Has the capability to generate an alarm at a specific time and date.Maintains the real time, even when the device is off (powered-off).HW/IP FEATURES:Real-Time Clock (RTC) provides the following features: The RTC also has periodic software calibration and logic to correct the static fractional inaccuracy of an oscillator. The RTC has an alarm function that generates an alarm at a specific time and date with a 136-year range. However, the RTC controller and user interface are only operational when the low-power domain supply is ON. A battery-backed RAM (BBRAM) is provided for when device is operating in the battery mode. When the device is off, the RTC is switched to the battery power supply. The Zynq® UltraScale+™ MPSoC real time clock (RTC) provides the real time even when the device is powered off.
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