https://devzone.nordicsemi.com/f/nordic-q-a/119268/details-of-the-instruction-cache-included-in-the-nrf52840Hello everyone, I read in the datasheet of the nrf52840 that an instruction cache is included in the chip, but I couldn&#39;t find details about it (i.e. its architecture, consisting of how many lines, of which size, the replacement logic and so on). Isen-USTelligent Community 13Tue, 25 Feb 2025 13:55:31 GMThttps://devzone.nordicsemi.com/thread/524626?ContentTypeID=1Tue, 25 Feb 2025 13:55:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:5934bfcc-4be2-44b1-859a-74f336fc88e7H&#229;kon Alseth<p>Hi,</p> <p>&nbsp;</p> <p>The i-cache is an instruction cache, and the behavior is explained here:</p> <p><a href="https://docs.nordicsemi.com/bundle/ps_nrf52840/page/nvmc.html#ariaid-title9">https://docs.nordicsemi.com/bundle/ps_nrf52840/page/nvmc.html#ariaid-title9</a></p> <p>Which is 2048 bytes:</p> <p><a href="https://docs.nordicsemi.com/bundle/ps_nrf52840/page/nvmc.html#ariaid-title24">https://docs.nordicsemi.com/bundle/ps_nrf52840/page/nvmc.html#ariaid-title24</a></p> <p>&nbsp;</p> <p>Kind regards,</p> <p>Håkon</p><div style="clear:both;"></div>