23.4.4 Sleep Mode Operation

The TCC can be configured to operate in any sleep mode. To run in standby the Run in Standby bit in the Control A register (CTRLA.RUNSTDBY) must be set. In any sleep mode, the TCC can wake up the device using interrupts or perform actions through the Event System.

When the device is in Standby sleep mode, the DMA is not able to write to the following registers: CTRLB, STATUS, COUNT, PATT, WAVE, PER, PERBUF, CC, and CCBUF. To write these registers using DMA, the device must be in Active mode or Idle sleep mode.