topic imx6sx emmc mode in i.MX Processors https://community.nxp.com/t5/i-MX-Processors/imx6sx-emmc-mode/m-p/1067561#M156863 <HTML><HEAD></HEAD><BODY><P>Hi all,</P><P>as far as i understand, imx6sx can reach a HS200 mode (controller spec 4.5 max, so no HS400).</P><P></P><P>Btw, the ref. manual (68.1.1, Rev. 3, 06/2018) is saying:</P><P></P><P>- Card bus clock frequency up to 208 MHz</P><P>- Up to 832 Mbps of data transfer for MMC cards using 8 parallel <STRONG>data lines in</STRONG><BR /><STRONG>DDR(Dual Data Rate)</STRONG> mode&nbsp;</P><P></P><P>I am miss somthing here, 200Mhz DDR means HS.400.&nbsp;</P><P>Also, 832Mbps seems a max bandwidth of 100Mhz ddr, or, 200 SDR.</P><P></P><P>Any clarification is welcome.</P></BODY></HTML> Mon, 08 Jun 2020 07:44:10 GMT angelo_d 2020-06-08T07:44:10Z imx6sx emmc mode https://community.nxp.com/t5/i-MX-Processors/imx6sx-emmc-mode/m-p/1067561#M156863 <HTML><HEAD></HEAD><BODY><P>Hi all,</P><P>as far as i understand, imx6sx can reach a HS200 mode (controller spec 4.5 max, so no HS400).</P><P></P><P>Btw, the ref. manual (68.1.1, Rev. 3, 06/2018) is saying:</P><P></P><P>- Card bus clock frequency up to 208 MHz</P><P>- Up to 832 Mbps of data transfer for MMC cards using 8 parallel <STRONG>data lines in</STRONG><BR /><STRONG>DDR(Dual Data Rate)</STRONG> mode&nbsp;</P><P></P><P>I am miss somthing here, 200Mhz DDR means HS.400.&nbsp;</P><P>Also, 832Mbps seems a max bandwidth of 100Mhz ddr, or, 200 SDR.</P><P></P><P>Any clarification is welcome.</P></BODY></HTML> Mon, 08 Jun 2020 07:44:10 GMT https://community.nxp.com/t5/i-MX-Processors/imx6sx-emmc-mode/m-p/1067561#M156863 angelo_d 2020-06-08T07:44:10Z