i.MX ProcessorsのトピックTermination resistor value https://community.nxp.com/t5/i-MX-Processors/Termination-resistor-value/m-p/721327#M112160 <HTML><HEAD></HEAD><BODY><P>I am connecting a i.MX6UL processor Ethernet interface to a FPGA through RMII, and the FPGA is converting to 1G Ethernet to the switch. So between the processor and FPGA, the transmission lines have to be terminated. What is the source resistance of the processor? what type and value resistor I should use to terminate the reflection?</P><P></P><P>Thanks</P></BODY></HTML> Thu, 24 May 2018 15:33:48 GMT johnnynguyen 2018-05-24T15:33:48Z Termination resistor value https://community.nxp.com/t5/i-MX-Processors/Termination-resistor-value/m-p/721327#M112160 <HTML><HEAD></HEAD><BODY><P>I am connecting a i.MX6UL processor Ethernet interface to a FPGA through RMII, and the FPGA is converting to 1G Ethernet to the switch. So between the processor and FPGA, the transmission lines have to be terminated. What is the source resistance of the processor? what type and value resistor I should use to terminate the reflection?</P><P></P><P>Thanks</P></BODY></HTML> Thu, 24 May 2018 15:33:48 GMT https://community.nxp.com/t5/i-MX-Processors/Termination-resistor-value/m-p/721327#M112160 johnnynguyen 2018-05-24T15:33:48Z Re: Termination resistor value https://community.nxp.com/t5/i-MX-Processors/Termination-resistor-value/m-p/721328#M112161 <HTML><HEAD></HEAD><BODY><P>Hi Nguyen</P><P></P><P>please check sect.3.8 Impedance signal recommendations i.MX6UL System Development User’s Guide </P><P><A class="link-titled" href="http://cache.freescale.com/files/32bit/doc/user_guide/IMX6ULHDG.pdf" title="http://cache.freescale.com/files/32bit/doc/user_guide/IMX6ULHDG.pdf">http://cache.freescale.com/files/32bit/doc/user_guide/IMX6ULHDG.pdf</A>&nbsp;</P><P></P><P>Best regards<BR />igor<BR />-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 24 May 2018 23:38:14 GMT https://community.nxp.com/t5/i-MX-Processors/Termination-resistor-value/m-p/721328#M112161 igorpadykov 2018-05-24T23:38:14Z