SWCU192 November 2021 CC1312R7 , CC1352P7 , CC2652P7 , CC2652R7
20.4.5.3.3.1 Asynchronous Counter Start – Ignore 0 Stop Events
In this scenario the user:
- Wants to measure the time between the start event and the first stop event
- Sets AUX_TDC:TRIGCNTCFG.EN = 0 to disable the stop counter
- Starts the TDC measurement by writing AUX_TDC:CTL.CMD = 2
- Assures that the start event is low until AUX_TDC.STAT.STATE = WAIT_START
- Assures that the stop event goes high later than the start event
Figure 20-18 shows the scenario for asynchronous counter start – ignore 0 stop events.
Figure 20-18 Arbitrary Time Measurement 1
Table 20-26 lists the associated timing requirements for this scenario.
Table 20-26 Arbitrary Time Measurement 1
| Description | Label | Requirement |
|---|---|---|
| Minimum high time | t_minH | 42 ns |
| Minimum delay | t_d | 21 ns |