The TC can generate the following DMA
requests:
- Overflow (OVF): the request is set
when an update condition (overflow, underflow or re-trigger) is detected, the request
is cleared by hardware on DMA acknowledge.
- Match or Capture Channel x (MCx):
for a compare channel, the request is set on each compare match detection, the
request is cleared by hardware on DMA acknowledge. For a capture channel, the request
is set when valid data is present in the CCx register, and cleared when CCx register
is read.