SWCU192 November 2021 CC1312R7 , CC1352P7 , CC2652P7 , CC2652R7
The prescaler depicted in Figure 20-15 is used to divide a high-frequency signal to comply with the timing requirements detailed in Section 20.4.5.3. The prescaler divides an event from the event bus to generate a lower-frequency event named AUX_TDC_PRE. The division ratio is either 16 or 64, and the resulting event waveform has a 50% duty cycle. The user must select AUX_TDC_PRE as both start and stop events for TDC conversion.
Initialize the prescaler with the sequence that follows:
Next, enable the prescaler event generation by setting AUX_TDC:PRECTL.RESET_N to 1.
The following limitations apply when the prescaler is used for event prescaling: