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CC1312R: Which pin is selected?

Part Number: CC1312R
Other Parts Discussed in Thread: SYSCONFIG

Tool/software:

Sorry to ask, perhaps obvious to some...

I try to add a SPI device to my CC1312 board in making. I get the suggestion to use the following pins

SCLK 16/32

POCI 15/11

PICO 12/19

CSN 1/30

Why are there two pin suggestions, and how do I select between the two?

POCI, pin 15 is used for backdoor programming, but I can change that

CSN pin 1 is used for UART_1, so that is a conflict.

I can see that I can select other pins, but they are always shown as a pair?

Best Regards,

Gullik