https://community.nxp.com/t5/LPC-Microcontrollers/LPC55xx-AHBCLKDIV/m-p/1391137#M47470 <P><SPAN>Hi, Ian,</SPAN></P> <P><SPAN>Yes, I agree with you, the default AHBCLKDIV is 1 after Reset.<BR clear="none" />I will report the doc error to AE team so that they can modify it in the next version of UM.<BR clear="none" /></SPAN></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="xiangjun_rong_1-1640241083071.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/166046i8A0598A5AF59DD85/image-size/medium?v=v2&amp;px=400" role="button" title="xiangjun_rong_1-1640241083071.png" alt="xiangjun_rong_1-1640241083071.png" /></span></P> <P>&nbsp;</P> <P><SPAN><BR clear="none" />Thank you for reporting the error</SPAN></P> <P><SPAN>BR</SPAN></P> <P><SPAN>XiangJun Rong</SPAN></P> Thu, 23 Dec 2021 06:32:37 GMT xiangjun_rong 2021-12-23T06:32:37Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55xx-AHBCLKDIV/m-p/1384227#M47339 <P>On the device I am working with, the reset value is 1 (All the AHB peripherals work at half the speed of the main clock.</P><P>The manual says that the reset value is 0 (Peripherals work at the clock speed)</P><P>Is this another one for the errata?</P> Thu, 09 Dec 2021 19:09:59 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55xx-AHBCLKDIV/m-p/1384227#M47339 ianbenton 2021-12-09T19:09:59Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC55xx-AHBCLKDIV/m-p/1391137#M47470 <P><SPAN>Hi, Ian,</SPAN></P> <P><SPAN>Yes, I agree with you, the default AHBCLKDIV is 1 after Reset.<BR clear="none" />I will report the doc error to AE team so that they can modify it in the next version of UM.<BR clear="none" /></SPAN></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="xiangjun_rong_1-1640241083071.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/166046i8A0598A5AF59DD85/image-size/medium?v=v2&amp;px=400" role="button" title="xiangjun_rong_1-1640241083071.png" alt="xiangjun_rong_1-1640241083071.png" /></span></P> <P>&nbsp;</P> <P><SPAN><BR clear="none" />Thank you for reporting the error</SPAN></P> <P><SPAN>BR</SPAN></P> <P><SPAN>XiangJun Rong</SPAN></P> Thu, 23 Dec 2021 06:32:37 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC55xx-AHBCLKDIV/m-p/1391137#M47470 xiangjun_rong 2021-12-23T06:32:37Z