https://devzone.nordicsemi.com/f/nordic-q-a/49468/twi-interrupt-delay-in-nrf51822I&#39;m using nrf51822 , softdevice S110 and the SDK10 . Im reading data from the sensor mpu9250 using i2c at 400Khz( Maximum) frequency. It taking more delay than expected to read data from register. I have attached an image of output wave form of i2c dataen-USTelligent Community 13Mon, 08 Jul 2019 12:27:37 GMThttps://devzone.nordicsemi.com/thread/197133?ContentTypeID=1Mon, 08 Jul 2019 12:27:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:32d5cbcb-eee7-43b6-9d54-cc1f973d2134Kenneth<p>For new development I suggest to check out the nRF52832 (or other variants of the nRF52-series), since they can support EasyDMA for serial transactions without delay between bytes. On the nRF51-series there will be an interrupt delay, and the delay also depends on whether the softdevice is enabled or not.</p> <p>Best regards,<br />Kenneth</p><div style="clear:both;"></div>