The mode uses to set the golbal calibrate startup mode.Immediate means startup immediately. Here, hwRegionCalibrateAutoTime is meanningless.
Periodic means startup calibrate periodically. In accordance, hwRegionCalibrateAutoTime specify the time when startup everyday.
Cancel periodic means cancel the periodically calibrate. Here, hwRegionCalibrateAutoTime is meanningless.
Please refer to the description of hwRegionCalibrateAutoTime.