https://devzone.nordicsemi.com/f/nordic-q-a/22148/can-nrf52-have-four-interfaces-active-spim-spis-twim0-twim1It appears that we can use only three at a time. I would like to use SPIM, SPIS and two TWI masters. Is that possible with the nRF52?en-USTelligent Community 13Thu, 18 May 2017 03:43:26 GMThttps://devzone.nordicsemi.com/thread/87042?ContentTypeID=1Thu, 18 May 2017 03:43:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f2d3f8f2-901d-47fd-aea6-f11abf60447bguraaf<p>That&#39;s what I figured but thought of asking to see if someone has a cool idea. Yeah, I will put multiple clients on the same i2c bus. Thanks.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/87041?ContentTypeID=1Thu, 18 May 2017 01:36:07 GMT137ad170-7792-4731-bb38-c0d22fbe4515:eb13c4ef-8e7b-48a1-ba1b-1939842e6287RK<p>So if you look at the peripheral map for the nRF52 .. there are two TWIM, TWIM0 and TWIM1. That uses up peripherals 3 and 4. SPIM2 is peripheral 35, so you can use that too. However then the three SPIS instances are 3, 4 and 35 so you can&#39;t use that. Doesn&#39;t matter which way you try to cut it up, out of that set you can only use 3.</p> <p>However you can use one TWIM master to drive up to 127 peripherals, can you not rework your application to do that?</p><div style="clear:both;"></div>