I've read this reference page http://arduino.cc/en/Reference/DueExtendedSPI about SPI on Arduino Due and it says that you can set the CS pin (what's CS btw?) and it gives an example, where it says that If using multiple devices with different CS pins, you'll need to declare those pins in setup(). …

MISO, MOSI and SCK pins on Arduino Due

HermannSW February 1, 2018, 7:07pm 9

ard_newbie added an arrow to the pins, open the image in new browser tab for details.

This is SPI documentation:

Form section "Connections":

Topic		Replies	Views
Arduino Due SPI support Due	12	8407	May 6, 2021
SPI conection on Due Due	5	2044	May 6, 2021
Checking SPI pins on a DUE(fried?) Due	5	2617	May 6, 2021
[SOLVED] Due and SPI library and SPI pins? Due	22	42820	May 6, 2021
Bus SPI Arduino DUE Software	5	1525	May 7, 2021