def populate(self, priority, address, rtr, data):
        """
        :return: None
        """
        assert isinstance(data, bytes)
        self.needs_low_priority(priority)
        self.needs_no_rtr(rtr)
        self.needs_data(data, 4)
        self.set_attributes(priority, address, rtr)
        self._day = data[0]
        self._mon = data[1]
        self._year = ((data[2] << 8) + data[3])