https://devzone.nordicsemi.com/f/nordic-q-a/54410/nrf5340---two-questionsHello Nordic team, I found nRF5340 a very interesting device for our projects. Could you clarify two moments about it: 1) What PCLK frequency is used for application processor&#39;s GPIO? 2) Is FIPS140-2 certification planned for nRF5340 cryptosystemen-USTelligent Community 13Fri, 15 Nov 2019 15:46:05 GMThttps://devzone.nordicsemi.com/thread/220369?ContentTypeID=1Fri, 15 Nov 2019 15:46:05 GMT137ad170-7792-4731-bb38-c0d22fbe4515:51500e97-0fad-4a5e-bab3-464ffcf60578bjorn-spockeli[quote user=""]1) What PCLK frequency is used for application processor&#39;s GPIO?[/quote] <p>I beleive the peripheral bus is 16MHz on the nRF5340, hence the maximum GPIO frequency will be 8MHz.</p> [quote user=""]2) Is FIPS140-2 certification planned for nRF5340 cryptosystem?[/quote] <p>The <span>Arm TrustZone CryptoCell-312 has a&nbsp;</span>&nbsp;<span>FIPS 140-2 compliant random number generator.&nbsp;</span></p><div style="clear:both;"></div>