Hi,
There's no GPIO belongs to MCU domain (Safe Island MCU R5F)
However, a lot of user scenarios may need to use GPIO in this MCU R5F.
My questions are:
(1) Without considering functional safety or isolation, can this MCU R5F manipulate MAIN domain and WKUP domain GPIO directly?
(2) In TRM, it mentions: Most communication between the MCU island and the rest of the SoC can (and, in a safety case, should) be conducted via internal SPI connections. I think this only apply when functional safety is required. If customers doesn't care about functional safety at all, I assume we don't need to use SPI to do the communication. Is my understanding correct?
(3) If functional safety is required (let's say ASIL-D) in this MCU R5F and GPIO is needed. I assume GPIO in MAIN domain and WKUP domain can't be used since they're not ASIL-D IP. Under this case, what is the best solution here?
Thank you.
