Each channel can be independently configured to generate a 2-bit Gray count waveform on corresponding TIOAx, TIOBx outputs by means of TC_SMMRx.GCEN.
Up or Down count can be defined by writing TC_SMMRx.DOWN.
It is mandatory to configure the channel in Waveform mode in the TC_CMR.
The period of the counters can be programmed in TC_RCx.
Figure 1. 2-bit Gray Up/Down Counter
