I am looking for a device with eight SPI channels and a UART. A parametric search on the website indicates that, for example, the XMega A1U can do this. In fact, it says there are twelve SPI ports. However, reading the data sheets, that does not seem to be the case at all. In fact I do not understand how they can claim as, it seems to me, the SPI pins are shared with the USARTs, rending a claim of twelve to be, at best, a mistake!
Am I missing something? AFAICS, you cannot remap the comms interfaces outside of ports C,D,E,F. So, that gives you two SPIs per port, which is eight.
Can someone clarify please, what the situation is. Is the parametric search just plain wrong? IS it the case that you can have eight USARTs, but then no SPIs?