Mad respect to Robert, as usual. But my original post has all the citations needed. I want to use the PRUs on the AI-64 as much as anyone. But because I’m building a product I need to know the full, accurate story. As long as AI-64 shipments continue using the XJ721E “superset” device (also called a “prototype” device by TI due to the “X”, see data sheet page 314) the PRUs should be there. How long will TI make those devices available? How long will the AI-64 ship with them installed? Good question.
Here’s some additional info from the TI forums. The current data sheet rev J makes reference to something called the “AM752x” in addition to the TDA4VM / DRA829. The current TRM rev C does not, but the earlier revs A and B did. So what’s the story? Well, this post (2 years old) says the AM752x is a non-automotive SoC version. But then this post (11 months old) is the first I’ve seen where someone from TI specifically says there are no plans to support the PRU-ICSSG in any future (production) SoC version. 