MPC5xxx中的主题 Re: TJA1100 auto polarity detect function https://community.nxp.com/t5/MPC5xxx/TJA1100-auto-polarity-detect-function/m-p/846114#M12422 <HTML><HEAD></HEAD><BODY><P>HI,</P><P></P><P>According to the datasheet TJA1100:</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P><SPAN style="left: 587.2px; top: 588.576px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.00339);">If the </SPAN><SPAN class="" style="left: 250.2px; top: 609.376px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.00297);">TJA1100 detects a <SPAN class="">polarity</SPAN> error in the Slave, it</SPAN><SPAN style="left: 595px; top: 609.376px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.00336);"> will correct it intern</SPAN><SPAN style="left: 737.5px; top: 609.376px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0039);">ally while setting the </SPAN><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);"><SPAN class="">POLARITY</SPAN>_DETECT bit in the External status register.</SPAN></P></BLOCKQUOTE><P><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);">So the polarity correction is done internally and you cannot disable this feature.</SPAN></P><P><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);"></SPAN></P><P><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);">regards,</SPAN></P><P><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);">Peter</SPAN></P></BODY></HTML> Mon, 25 Feb 2019 15:56:43 GMT petervlna 2019-02-25T15:56:43Z TJA1100 auto polarity detect function https://community.nxp.com/t5/MPC5xxx/TJA1100-auto-polarity-detect-function/m-p/846113#M12421 <HTML><HEAD></HEAD><BODY><P>Hello Community,</P><P></P><P>Now I'm using the TJA1100 for Ethernet PHY, which support Polarity detection function.<BR />Is it possible to enable / disable intentionally by register setting ?</P></BODY></HTML> Wed, 10 Oct 2018 10:53:44 GMT https://community.nxp.com/t5/MPC5xxx/TJA1100-auto-polarity-detect-function/m-p/846113#M12421 naoyuki_abe 2018-10-10T10:53:44Z Re: TJA1100 auto polarity detect function https://community.nxp.com/t5/MPC5xxx/TJA1100-auto-polarity-detect-function/m-p/846114#M12422 <HTML><HEAD></HEAD><BODY><P>HI,</P><P></P><P>According to the datasheet TJA1100:</P><BLOCKQUOTE class="jive_macro_quote jive-quote jive_text_macro"><P><SPAN style="left: 587.2px; top: 588.576px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.00339);">If the </SPAN><SPAN class="" style="left: 250.2px; top: 609.376px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.00297);">TJA1100 detects a <SPAN class="">polarity</SPAN> error in the Slave, it</SPAN><SPAN style="left: 595px; top: 609.376px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.00336);"> will correct it intern</SPAN><SPAN style="left: 737.5px; top: 609.376px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0039);">ally while setting the </SPAN><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);"><SPAN class="">POLARITY</SPAN>_DETECT bit in the External status register.</SPAN></P></BLOCKQUOTE><P><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);">So the polarity correction is done internally and you cannot disable this feature.</SPAN></P><P><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);"></SPAN></P><P><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);">regards,</SPAN></P><P><SPAN class="" style="left: 250.2px; top: 630.275px; font-size: 16.6px; font-family: sans-serif; transform: scaleX(1.0026);">Peter</SPAN></P></BODY></HTML> Mon, 25 Feb 2019 15:56:43 GMT https://community.nxp.com/t5/MPC5xxx/TJA1100-auto-polarity-detect-function/m-p/846114#M12422 petervlna 2019-02-25T15:56:43Z