topic Re: LPC43xx USB and Ethernet in LPC Microcontrollers https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626988#M24646 <HTML><HEAD></HEAD><BODY><P>Hi <SPAN class=""><A _jive_internal="true" data-containerid="-1" data-containertype="-1" data-content-finding="Community" data-objectid="288975" data-objecttype="3" href="https://community.nxp.com/people/sanjoychakraborty">Sanjoy Chakraborty</A></SPAN>,</P><P>Thanks for your reply.</P><P>In my opinion, the USB module will keep inactive if don't enable it and you can just leave these related pins alone.</P><P>I understand your worry, and I think the current leakage is impossible.</P><P>Hope it helps.<BR />Have a great day,<BR />Ping</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 19 Oct 2016 03:23:33 GMT jeremyzhou 2016-10-19T03:23:33Z LPC43xx USB and Ethernet https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626983#M24641 <HTML><HEAD></HEAD><BODY><P>Hello,</P><P></P><P>I am progressing a pcb design using the LPC4337 microcontroller.</P><P></P><P>This design doesn't utilise either the ethernet or USB interfaces. I would like to know if it is necessary to apply any power, pull-up or pull-down resistor to continue to use the microcontroller correctly?</P><P></P><P>Regards</P><P></P><P>Sanjoy Chakraborty</P></BODY></HTML> Wed, 12 Oct 2016 10:28:15 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626983#M24641 sanjoychakrabor 2016-10-12T10:28:15Z Re: LPC43xx USB and Ethernet https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626984#M24642 <HTML><HEAD></HEAD><BODY><P>Hi <A _jive_internal="true" class="" data-content-finding="Community" data-userid="288975" data-username="sanjoychakraborty" href="https://community.nxp.com/people/sanjoychakraborty">Sanjoy Chakraborty,</A></P><P>The pin default function is digital pin, and you needn't do any setting, just leave these pins lone.<BR />Have a great day,<BR />Ping</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 18 Oct 2016 01:25:02 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626984#M24642 jeremyzhou 2016-10-18T01:25:02Z Re: LPC43xx USB and Ethernet https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626985#M24643 <HTML><HEAD></HEAD><BODY><P>Hi,</P><P></P><P>Thanks for the reply. Do you know anything specific about the USB and ethernet power pins?</P><P></P><P>Cheers</P></BODY></HTML> Tue, 18 Oct 2016 07:49:46 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626985#M24643 sanjoychakrabor 2016-10-18T07:49:46Z Re: LPC43xx USB and Ethernet https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626986#M24644 <HTML><HEAD></HEAD><BODY><P>Hi <SPAN class=""><A _jive_internal="true" class="" data-content-finding="Community" data-userid="288975" data-username="sanjoychakraborty" href="https://community.nxp.com/people/sanjoychakraborty">Sanjoy Chakraborty</A></SPAN>,</P><P>The ENET module needn't any specific power circuit as the USB module does.</P><P>I'd highly recommend you to get the information of the pins in the Table 188 in the reference manual.</P><P>And I've also attached the sch of the MCB4300, please refer to it for details.<BR />Have a great day,<BR />Ping</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Tue, 18 Oct 2016 09:33:22 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626986#M24644 jeremyzhou 2016-10-18T09:33:22Z Re: LPC43xx USB and Ethernet https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626987#M24645 <HTML><HEAD></HEAD><BODY><P>Thank you Ping,</P><P></P><P>I have referred to Table 188 prior to posting, but I want to know if you are experienced in the case of not using the USB driver. I want to ensure that leakage from other MCU power rails won't occur if I don't connect up the USB power and GND pins.</P><P></P><P>Regards</P><P></P><P>Sanjoy</P></BODY></HTML> Tue, 18 Oct 2016 09:45:21 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626987#M24645 sanjoychakrabor 2016-10-18T09:45:21Z Re: LPC43xx USB and Ethernet https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626988#M24646 <HTML><HEAD></HEAD><BODY><P>Hi <SPAN class=""><A _jive_internal="true" data-containerid="-1" data-containertype="-1" data-content-finding="Community" data-objectid="288975" data-objecttype="3" href="https://community.nxp.com/people/sanjoychakraborty">Sanjoy Chakraborty</A></SPAN>,</P><P>Thanks for your reply.</P><P>In my opinion, the USB module will keep inactive if don't enable it and you can just leave these related pins alone.</P><P>I understand your worry, and I think the current leakage is impossible.</P><P>Hope it helps.<BR />Have a great day,<BR />Ping</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Wed, 19 Oct 2016 03:23:33 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC43xx-USB-and-Ethernet/m-p/626988#M24646 jeremyzhou 2016-10-19T03:23:33Z