https://devzone.nordicsemi.com/f/nordic-q-a/41702/nrf52840-qiaa-rHello, We are using two I2C0,I2C1 and one SPI0 for different device interfaces in NRF52840-QIAA-R. So, can we use I2C0 and SPI0 at the same time?en-USTelligent Community 13Fri, 21 Dec 2018 09:47:37 GMThttps://devzone.nordicsemi.com/thread/162808?ContentTypeID=1Fri, 21 Dec 2018 09:47:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:692c1f22-bbbe-4c8d-a26d-a3256b09c601Suraj11<p>Thank you Andreas</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/162285?ContentTypeID=1Tue, 18 Dec 2018 12:45:57 GMT137ad170-7792-4731-bb38-c0d22fbe4515:2b5e9106-ab62-4a56-bcfd-c0ea42ebb650Andreas<p>Hi,</p> <p>&nbsp;</p> <p>See the <a href="https://www.nordicsemi.com/en/DocLib/Content/Product_Spec/nRF52840/latest/memory?20#topic">instantiation table in the PS</a>. TWI0 and SPI0 share base address, this means that the resources (circuitry) that make up each instance internally is shared, you can only enable one at a time. You should instead use TWI0, TWI1, and SPI2. SPI2 is at a separate address, not sharing resources, and can be active at the same time as TWI0 and TWI1.</p> <p>&nbsp;</p> <p>Best regards,</p> <p>Andreas</p><div style="clear:both;"></div>