i.MX ProcessorsのトピックAbout EMMC voltage https://community.nxp.com/t5/i-MX-Processors/About-EMMC-voltage/m-p/620440#M94030 <HTML><HEAD></HEAD><BODY><P>Hi, guys. I am reading emmc 5.1 spec now. However, I am confused with voltage of emmc. Please look at this image</P><P><span class="lia-inline-image-display-wrapper" image-alt="Capture.PNG"><img src="https://community.nxp.com/t5/image/serverpage/image-id/16489i3D983F1AD772F655/image-size/large?v=v2&amp;px=999" role="button" title="Capture.PNG" alt="Capture.PNG" /></span></P><P>What is the meaning of positive supply voltage ground?</P><P>Why this supply voltage ground is positive, not zero?</P><P>Why it adds this supply voltage ground in this spec?</P><P></P><P>I am looking for your answers.</P><P></P><P>Thanks.</P></BODY></HTML> Mon, 27 Mar 2017 05:35:42 GMT zongyuanliu 2017-03-27T05:35:42Z About EMMC voltage https://community.nxp.com/t5/i-MX-Processors/About-EMMC-voltage/m-p/620440#M94030 <HTML><HEAD></HEAD><BODY><P>Hi, guys. I am reading emmc 5.1 spec now. However, I am confused with voltage of emmc. Please look at this image</P><P><span class="lia-inline-image-display-wrapper" image-alt="Capture.PNG"><img src="https://community.nxp.com/t5/image/serverpage/image-id/16489i3D983F1AD772F655/image-size/large?v=v2&amp;px=999" role="button" title="Capture.PNG" alt="Capture.PNG" /></span></P><P>What is the meaning of positive supply voltage ground?</P><P>Why this supply voltage ground is positive, not zero?</P><P>Why it adds this supply voltage ground in this spec?</P><P></P><P>I am looking for your answers.</P><P></P><P>Thanks.</P></BODY></HTML> Mon, 27 Mar 2017 05:35:42 GMT https://community.nxp.com/t5/i-MX-Processors/About-EMMC-voltage/m-p/620440#M94030 zongyuanliu 2017-03-27T05:35:42Z Re: About EMMC voltage https://community.nxp.com/t5/i-MX-Processors/About-EMMC-voltage/m-p/620441#M94031 <HTML><HEAD></HEAD><BODY><P>Actually, this is just the confusing description for the Ground pins. In fact, the Vss and Vssq pins are just the Ground pins for the corresponding supply voltages, Vcc and Vccq, respectively.</P><P><BR />Have a great day,<BR />Artur</P><P></P><P>-----------------------------------------------------------------------------------------------------------------------<BR />Note: If this post answers your question, please click the Correct Answer button. Thank you!<BR />-----------------------------------------------------------------------------------------------------------------------</P></BODY></HTML> Mon, 27 Mar 2017 12:11:02 GMT https://community.nxp.com/t5/i-MX-Processors/About-EMMC-voltage/m-p/620441#M94031 art 2017-03-27T12:11:02Z