topic Re: Unused eSDHC Interface Pin Recommendations in P1022 Processor in P-Series https://community.nxp.com/t5/P-Series/Unused-eSDHC-Interface-Pin-Recommendations-in-P1022-Processor/m-p/468667#M2769 <HTML><HEAD></HEAD><BODY><P><SPAN lang="EN-US" style="font-size: 10.0pt;">If pins are configured as SDHC, tie to inactive state through 10–100k</SPAN><SPAN lang="EN-US" style="font-size: 10.0pt;">pull-up resistors.</SPAN></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;">It is common practice. To ensure reliable operation, it is highly recommended to connect unused inputs to an appropriate signal level.</SPAN></P><P><BR />Have a great day,<BR />Pavel</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 28 Jan 2016 05:32:31 GMT Pavel 2016-01-28T05:32:31Z Unused eSDHC Interface Pin Recommendations in P1022 Processor https://community.nxp.com/t5/P-Series/Unused-eSDHC-Interface-Pin-Recommendations-in-P1022-Processor/m-p/468666#M2768 <HTML><HEAD></HEAD><BODY><P>It is specified in P1022 design checklist that if eSDHC interface is not used SDHC_DAT0/GPIO1_[25], SDHC_DAT[1:2], SDHC_DAT3 should be configured as GPIO Output, leave floating. But SDHC_DAT[1:2] pins cannot be configured as GPIO output. What should be recommendation for unused SDHC_DAT[1:2] pins?</P></BODY></HTML> Wed, 27 Jan 2016 10:19:37 GMT https://community.nxp.com/t5/P-Series/Unused-eSDHC-Interface-Pin-Recommendations-in-P1022-Processor/m-p/468666#M2768 prasantahalder 2016-01-27T10:19:37Z Re: Unused eSDHC Interface Pin Recommendations in P1022 Processor https://community.nxp.com/t5/P-Series/Unused-eSDHC-Interface-Pin-Recommendations-in-P1022-Processor/m-p/468667#M2769 <HTML><HEAD></HEAD><BODY><P><SPAN lang="EN-US" style="font-size: 10.0pt;">If pins are configured as SDHC, tie to inactive state through 10–100k</SPAN><SPAN lang="EN-US" style="font-size: 10.0pt;">pull-up resistors.</SPAN></P><P><SPAN lang="EN-US" style="font-size: 10.0pt;">It is common practice. To ensure reliable operation, it is highly recommended to connect unused inputs to an appropriate signal level.</SPAN></P><P><BR />Have a great day,<BR />Pavel</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Thu, 28 Jan 2016 05:32:31 GMT https://community.nxp.com/t5/P-Series/Unused-eSDHC-Interface-Pin-Recommendations-in-P1022-Processor/m-p/468667#M2769 Pavel 2016-01-28T05:32:31Z