https://devzone.nordicsemi.com/f/nordic-q-a/94897/twi-apishi team, i am using nrf52840 controller and sdk 16.0 i want to know difference between twi and twim and twis driver apis in infocenter.which one i have to use once i connect external i2c based eeprom module through GPIOs.and i have another doubt foren-USTelligent Community 13Thu, 15 Dec 2022 12:29:43 GMThttps://devzone.nordicsemi.com/thread/400822?ContentTypeID=1Thu, 15 Dec 2022 12:29:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:992ce348-5d68-4664-8244-8f5a97855a76J&#248;rgen Holmefjord<p>Hi,</p> <ul> <li>TWI is legacy TWI Master peripheral without support for EasyDMA. When using this, the CPU needs to update the data pointer for each byte being transmitted/received.</li> <li>TWIM is the more modern TWI Master peripheral with EasyDMA support, allowing you to transfer larger blocks of data directly from/to RAM, without any CPU intervention.</li> <li>TWIS is TWI slave peripheral, used when you have an external master that should be able to read/write data from/to the nRF. This also supports EasyDMA.</li> </ul> <p>For our use-case, I would recommend using the TWIM API.</p> <p>Best regards,<br />Jørgen</p><div style="clear:both;"></div>