TMS320F28377D: Tripping PWMxA and PWMxB signals when using active high complimentary mode

Is it the case that DCAH is only for tripping the PWMA output, whereas DCBH is for tripping the PWMB output, and one would use a one-shot if they wish to trip both at the same time? What is the best way to do the following:

Have cycle-by-cycle current limiting on two CMPSS signals, and a one-shot limiting action for a third CMPSS signal? 

Thank you very much Marlyn for this very helpful response.

Just to clarify;

Although DCAEVT1/2 comes from DCAH/DCAL signals. DCBEVT1/2 comes from DCBH/DCBL signals, because they are ORed together and sent to both the A and B outputs of the PWM module, both the DCBEVT1/2 and DCAEVT1/2 signals act on both the outputs of the PWM module?

If we trip decide to trip both A and B outputs of the PWM module according to any combination of digital compare trip signal, again what is the point in defining trips for both A and B outputs? It would make sense to just have any error signals trip PWMA, since those signals also trip PWMB anyway, unless I am mistaken. 

Can you confirm that the code below is correct, to trigger both PWMxA and PWMxB according to the trip signals? 

EALLOW;

// Digital Compare (DC) Submodule
// Generate DCAH signal from Trip Combination Input
EPwm1Regs.DCTRIPSEL.bit.DCAHCOMPSEL = 15; // OR together all Trip combinations selected by DCALTRIPSEL Registers -> DCAH
EPwm1Regs.DCTRIPSEL.bit.DCBHCOMPSEL = 15; // OR together all Trip combinations selected by DCALTRIPSEL Registers -> DCBH

// DCAH/DCAEVT1/2 are used for one-shot trip faults
// DCBH/DCBEVT1/2 are used for cycle-by-cycle faults
// Individually select which trip signals are passed into the block to be ORed together
EPwm1Regs.DCAHTRIPSEL.bit.TRIPINPUT5 = 1; // Input Over Voltage Trip One-Shot Fault
EPwm1Regs.DCAHTRIPSEL.bit.TRIPINPUT7 = 1; // Output Voltage 1 Over Voltage Trip One-Shot Fault
EPwm1Regs.DCBHTRIPSEL.bit.TRIPINPUT4 = 1; //  Over Current Trip Cycle-by-Cycle Fault

// Event A Action Qualifier block
// Generate DCAEVT1/DCBEVT1 trip events according to DCAH and DCBH
// Only EVT1 can be used for OST, and EVT2 for CBC
// Need to enable both A and B of these registers to trigger both the PWMx outputs
EPwm1Regs.TZDCSEL.bit.DCAEVT1 = 2; // DCAEVT1: DCAH = high, DCAL = don't care
EPwm1Regs.TZDCSEL.bit.DCAEVT2 = 2; // DCAEVT2: DCAH = high, DCAL = don't care
EPwm1Regs.TZDCSEL.bit.DCBEVT1 = 2; // DCBEVT1: DCBH = high, DCBL = don't care
EPwm1Regs.TZDCSEL.bit.DCBEVT2 = 2; // DCBEVT2: DCBH = high, DCBL = don't care

// Event Triggering block - Generate DCAEVT1.force and DCBEVT1.force signals (One Shot Source)
EPwm1Regs.DCACTL.bit.EVT1SRCSEL = 0; // Select DCAEVT1 as input signal
EPwm1Regs.DCACTL.bit.EVT1FRCSYNCSEL = 1; // Select Asynchronous
EPwm1Regs.TZFRC.bit.DCAEVT1 = 0; // Enable DCAEVT1.force output signal
EPwm1Regs.DCBCTL.bit.EVT1SRCSEL = 0; // Select DCBEVT1 as input signal
EPwm1Regs.DCBCTL.bit.EVT1FRCSYNCSEL = 1; // Select Asynchronous
EPwm1Regs.TZFRC.bit.DCBEVT1 = 0; // Enable DCBEVT1.force output signal

// Event Triggering block - Generated DCAEVT2.force and DCBEVT2.force signals (Cycle-by-Cycle Source)
EPwm1Regs.DCACTL.bit.EVT2SRCSEL = 0; // Select DCAEVT2 as input signal
EPwm1Regs.DCACTL.bit.EVT2FRCSYNCSEL = 1; // Select Asynchronous
EPwm1Regs.TZFRC.bit.DCAEVT2 = 0; // Enable DCAEVT2.force output signal
EPwm1Regs.DCBCTL.bit.EVT2SRCSEL = 0; // Select DCBEVT2 as input signal
EPwm1Regs.DCBCTL.bit.EVT2FRCSYNCSEL = 1; // Select Asynchronous
EPwm1Regs.TZFRC.bit.DCBEVT2 = 0; // Enable DCBEVT2.force output signal

// Trip Zone Submodule - Trip Logic block
// Using only TZCTL and EVT1
EPwm1Regs.TZCTL2.bit.ETZE = 0; // Use only TZCTL register, disable TSCTL2

EPwm1Regs.TZCTL.bit.DCAEVT1 = 0x10; // On trip, force EPWM1A to a LOW state
EPwm1Regs.TZCTL.bit.DCBEVT1 = 0x10; // On trip, force EPWM1B to a LOW state
EPwm1Regs.TZCTL.bit.DCAEVT2 = 0x10; // On trip, force EPWM1A to a LOW state
EPwm1Regs.TZCTL.bit.DCBEVT2 = 0x10; // On trip, force EPWM1B to a LOW state
EPwm1Regs.TZCTL.bit.TZA = 0x10; // On trip, force EPWM1A to a LOW state
EPwm1Regs.TZCTL.bit.TZB = 0x10; // On trip, force EPWM1B to a LOW state

// Trip-Zone Submodule - select OSHT and CBC sources
EPwm1Regs.TZSEL.bit.DCAEVT1 = 1; // Enable DCAEVT1 as one-shot-trip source for this ePWM module
EPwm1Regs.TZSEL.bit.DCBEVT1 = 1; // Enable DCBEVT1 as one-shot trip source for this ePWM module
EPwm1Regs.TZSEL.bit.DCAEVT2 = 1; // Enable DCAEVT2 as a CBC trip source for this ePWM module
EPwm1Regs.TZSEL.bit.DCBEVT2 = 1; // Enable DCBEVT2 as a CBC trip source for this ePWM module