https://devzone.nordicsemi.com/f/nordic-q-a/93959/nrf5340-audio-dk-pca10121-spi-questionHi, I reviewed the PCA10121 schematic for using SPI4 pins to connect to Semtech SX1262. Since SPI4 bus also connected to SD card and DSP. I checked to see if SPI0..3 pins are routed to external pins. I saw SPI1 and SPI2 pins are used. I don&#39;t see SPI0en-USTelligent Community 13Thu, 17 Nov 2022 12:55:47 GMThttps://devzone.nordicsemi.com/thread/396209?ContentTypeID=1Thu, 17 Nov 2022 12:55:47 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6eecaf86-d050-460d-a6f7-f79f902a87f3Einar Thorsrud<p>Except for special pins for high speed mode for SPI4, any pins can be used with SPI, as is the case for other peripherals. So you can generally use any GPIO pins that are routed out (if there is a board with some pins marked as &quot;SPI&quot; that means they are used for it on that design, but it does not mean that you cannot use other pins).</p><div style="clear:both;"></div>