TMS320F28379D: TZDCSEL Has A Confusing Name....Maybe

Hi Kier,

Kier said:

...if I've understood it correctly it appears that it is configured by a register called TZDCSEL, is that the case?

Yes, you are correct in your understanding.

Kier said:

If so, I'm curious to know why the register name begins with the letters TZ?

I don't actually have the history for why this register name was chosen to start with TZ, this notation goes back for more than a decade. 

Kier said:

I have inferred a convention for all the other ePWM registers: That the first two letters of the register indicate the sub-module container. This seems to work well for all registers except for TZDCSEL because this register appears to reside in the DC sub-module and not in the TZ module. Perhaps a more accurate name in future implementations is DCEVTSEL.

I completely understand why this would be confusing and will discuss with our design team but future devices, thank you!

Kier said:

I make this point because the ePWM is non-trivial and anomalies like this don't aid understanding.

Thank you for voicing this out Kier. Have you configured EPWM through our SysConfig tool? I think it helps with these circumstances since you don't have to know the registers or driverlib functions. 

Best Regards,

Marlyn