SPRUIM2H May 2020 – October 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
As described in Section 12.4.3.4.2, the Time Base (TB) module can be configured to operate in 3 distinct count modes:
The timing diagrams in Figure 12-2244 to Figure 12-2247 show how CMPA and CMPB events are generated in each of the 3 count modes and how the EPWMxSYNCI signal interacts.

Figure 12-2245 EPWM Counter-Compare Events in Down-Count Mode
Figure 12-2246 EPWM Counter-Compare Events in Up-Down-Count Mode, EPWM_TBCTL[13] PHSDIR = 0 Count Down on Synchronization Event
Figure 12-2247 EPWM Counter-Compare Events in Up-Down-Count Mode, EPWM_TBCTL[13] PHSDIR = 1 Count Up on Synchronization Event