field update F28M35H22C from a host CPU by UART

Hello

I'm new to TI's C2000 and have to setting up a system with a F28M35H22C. In our application a field update of the F28M35-flash by a host CPU by UART is needed (C28x AND M3).

- Do I need a dedicated UART on each core for this (U0 for C28x and UART0 for M3)?

- Can I do the update only by using the UART0 (C28x) for both devices?

Thanks for your feedback

Regards

Roland