SPRUJ53C April 2024 – February 2025 TMS320F28P550SG , TMS320F28P550SJ , TMS320F28P559SG-Q1 , TMS320F28P559SJ-Q1
The counter-compare module can generate compare events in all three count modes:
To best illustrate the operation of the first three modes, the timing diagrams in Figure 19-17 through Figure 19-20 show when events are generated and how the EPWMxSYNCI signal interacts.

Figure 19-18 Counter-Compare Events in Down-Count Mode
Figure 19-19 Counter-Compare Events In Up-Down-Count Mode, TBCTL[PHSDIR = 0] Count Down On Synchronization Event
Figure 19-20 Counter-Compare Events In Up-Down-Count Mode, TBCTL[PHSDIR = 1] Count Up On Synchronization Event