nRF52832 spi interface(s)

[Flamingo]

Hi,

I am trying to make a design for the module ISP4520 from ISP, which is basically a pcb with a nRF52832 and a lora radio.

However the processor on the RF52832 is not powerful enough to run my application standalone. So I add a micro-controller which will be communicating with the nordic chip trough (probably)spi. However the lora chip is already connected to one spi interface, so I need to connect my micro-controller to another spi interface. Long story short I cant seem to find the right documentation where I can lookup, how many spi interfaces there are available and to which pins i can assign those interfaces. 

All that i have found is the document on how to configure and use the spi(and all other interfaces) of the nordic chip. All I have found is a document which tells me the pinmap, but that pinmap only tells me which pins are used for SWD, analogue or GPIO. But it doesn't specify anything on which pins i can assign to which spi.

So my question:

where can I find a document witch states all the possible configurations of the IO.

And where can I find how many SPI's interfaces there are available on the chip?

Kind regards,

Ruben

[Jørgen Holmefjord]

Hi,

All GPIOs can be assigned to any serial peripheral. The nRF5 ICs have a pin-crossbar feature that makes this possible.

You can find the possible peripheral instantiations in the Instantiation documentation. For nRF52832 you can enable up to 3 SPI(M) instances. Note that the SPI instances share base address with SPIS/TWIM/TWIS. You can only enable one instance on each base address as a time.

Best regards,
Jørgen

[Flamingo]

Ahh, well that explain why i couldn't find it.
Thanks for the info!