SPRUIL1D May 2019 – December 2024 DRA829J , DRA829J-Q1 , DRA829V , DRA829V-Q1 , TDA4VM , TDA4VM-Q1
As described in Section 12.4.2.4.2, the Time Base (TB) module can be configured to operate in 3 distinct count modes:
The timing diagrams in Figure 12-401 to Figure 12-404 show how CMPA and CMPB events are generated in each of the 3 count modes and how the EPWMxSYNCI signal interacts.

Figure 12-402 EPWM Counter-Compare Events in Down-Count Mode
Figure 12-403 EPWM Counter-Compare Events in Up-Down-Count Mode, EPWM_TBCTL[13] PHSDIR = 0 Count Down on Synchronization Event
Figure 12-404 EPWM Counter-Compare Events in Up-Down-Count Mode, EPWM_TBCTL[13] PHSDIR = 1 Count Up on Synchronization Event