25.3.3.2.3 NCO Fixed Duty-Cycle Frequency Waveform Generation

In NCO Fixed Duty Cycle Frequency Waveform Generation mode, the TCF operates like in NCO Pulse-Frequency Waveform Generation mode, but the output is toggled every time the accumulator overflows. Given that the increment value remains constant, this provides a 50% duty cycle at half the f_FRQ frequency for the Pulse-Frequency mode.

The CMP0 and CMP1 events are generated at alternating overflows. The interrupt flags are set simultaneous as the pulse events are generated.