Different Waveform Modes

The LCD controller drives different waveforms according to the different bias configurations and the LCD controller supports two types of waveform drive as follows:

• Bit-inversion (type A, standard) called as Standard waveform mode
• Frame-inversion (type B, low-power) called as Low power waveform mode

The frame-inversion mode has a lower switching frequency than the bit-inversion mode, and thus reduce the power consumption compared to standard waveform. Both waveform modes have the same period and the DC-component is null. For static bias, standard and low-power waveform don’t have any differences. However, for 1/2, 1/3, and 1/4 bias, low-power waveform provide less toggle rate compared to standard one.

By default the low-power waveform mode is enabled.

Refer the SAM L22 datasheet for different Standard and Low power waveform templates for the different Duty and Bias configurations.