topic Re: MC33908 MUX_OUT question in MPC5xxx https://community.nxp.com/t5/MPC5xxx/MC33908-MUX-OUT-question/m-p/470710#M1941 <HTML><HEAD></HEAD><BODY><P>Thank you, Tomas!</P><P>Yes, I find the <EM>description of the VIO, the wide range is 3~19V and tight range is 3~9V.:smileyhappy:</EM></P></BODY></HTML> Tue, 17 May 2016 01:05:43 GMT shawnzhao 2016-05-17T01:05:43Z MC33908 MUX_OUT question https://community.nxp.com/t5/MPC5xxx/MC33908-MUX-OUT-question/m-p/470708#M1939 <HTML><HEAD></HEAD><BODY><P>If I use IO_1 to monitor the Vcore, and config the <SPAN lang="EN-US" style="font-family: 'Times New Roman','serif'; font-size: 12pt; mso-bidi-font-size: 10.0pt; mso-fareast-font-family: 宋体; mso-bidi-font-family: Arial; mso-ansi-language: EN-US; mso-fareast-language: EN-US; mso-bidi-language: AR-SA;">Vcore_FB=1</SPAN> in INIT VREG1 Register that means "IO_1 can NOT be used for analog/digital input neither for WU from LPOFF". Can I still monitor IO_1 from MUX_OUT by MCU if I set the AMUX0:2=110b which means selete the IO_1 to output of MUX_OUT?&nbsp; Thanks!</P><P><span class="lia-inline-image-display-wrapper" image-alt="149324_149324.PNG"><img src="https://community.nxp.com/t5/image/serverpage/image-id/121592i6FD2828ECB9BB053/image-size/large?v=v2&amp;px=999" role="button" title="149324_149324.PNG" alt="149324_149324.PNG" /></span><span class="lia-inline-image-display-wrapper" image-alt="Vcore monitor.PNG"><img src="https://community.nxp.com/t5/image/serverpage/image-id/57667i4FC5A265233DF01C/image-size/large?v=v2&amp;px=999" role="button" title="Vcore monitor.PNG" alt="Vcore monitor.PNG" /></span></P></BODY></HTML> Fri, 13 May 2016 09:00:37 GMT https://community.nxp.com/t5/MPC5xxx/MC33908-MUX-OUT-question/m-p/470708#M1939 shawnzhao 2016-05-13T09:00:37Z Re: MC33908 MUX_OUT question https://community.nxp.com/t5/MPC5xxx/MC33908-MUX-OUT-question/m-p/470709#M1940 <HTML><HEAD></HEAD><BODY><P>Hi Shawn,</P><P></P><P><SPAN lang="EN-US">MUX_OUT output works starting minimum 3V at IO input pin. FB_core monitoring at IO_1 is 0.8V, so nothing will be measurable at MUX_OUT in that condition.</SPAN></P><P></P><P>Regards,</P><P>Tomas</P><P></P><P><EM style="font-weight: normal; font-style: italic; font-size: 11px; font-family: arial, helvetica, 'helvetica neue', verdana, sans-serif; color: #51626f; text-align: left; text-indent: 0px;">PS: If my answer helps to solve your question, please mark it as "Correct". Thank you.</EM></P></BODY></HTML> Mon, 16 May 2016 10:07:38 GMT https://community.nxp.com/t5/MPC5xxx/MC33908-MUX-OUT-question/m-p/470709#M1940 TomasVaverka 2016-05-16T10:07:38Z Re: MC33908 MUX_OUT question https://community.nxp.com/t5/MPC5xxx/MC33908-MUX-OUT-question/m-p/470710#M1941 <HTML><HEAD></HEAD><BODY><P>Thank you, Tomas!</P><P>Yes, I find the <EM>description of the VIO, the wide range is 3~19V and tight range is 3~9V.:smileyhappy:</EM></P></BODY></HTML> Tue, 17 May 2016 01:05:43 GMT https://community.nxp.com/t5/MPC5xxx/MC33908-MUX-OUT-question/m-p/470710#M1941 shawnzhao 2016-05-17T01:05:43Z