Enable / Disable all PWM Singals with an Digital Input on RT Box?

To clearify my setup:

I would like to simulate a 3 Phase, 3-Level T-Type NPC Voltage Source Inverter for grid injections on the RT-Box and using an external F28379d Controller to fire the IGBTs. For the VSI I use 3 times the Power Module “3-Level Half Bridge (T-Type)” with the PWM Capture Block for its pulses.

Now, I would like to set a GPIO on the F28379D wich is read by a DI (or something else?) on the RT Box to block all firing pulses at once.

Thanks