topic Re: USB high-speed regulator in i.MX RT Crossover MCUs https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/USB-high-speed-regulator/m-p/933382#M3842 <HTML><HEAD></HEAD><BODY><P>Hi Yoshida Satoru</P><P></P><P>That 400 mV mentioned in the Reference Manual is only seen by the driver transceiver, so you actually will not have an output voltage for the High-speed transceiver regulator, you only have the Data lines working a the nominal 5V.</P><P></P><P>Hope this info helps</P><P>Best regards</P></BODY></HTML> Mon, 07 Oct 2019 20:54:55 GMT jorge_a_vazquez 2019-10-07T20:54:55Z USB high-speed regulator https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/USB-high-speed-regulator/m-p/933381#M3841 <HTML><HEAD></HEAD><BODY><P><SPAN class="" lang="en"><SPAN title="">Hi,&nbsp;</SPAN></SPAN></P><P><SPAN class="" lang="en"><SPAN title=""></SPAN></SPAN></P><P><SPAN class="" lang="en"><SPAN title="">3V is generated from VBUS using LDO_USB.</SPAN><BR /><SPAN title="">This 3V is for Full-Speed or Low-Speed.</SPAN><BR /><SPAN title="">These are described in 12.4.1.1.3 of the reference manual.</SPAN><BR /><BR /><SPAN title="">However, high speed works at 400mV.</SPAN><BR /><SPAN title="">Which regulator outputs 400mV?</SPAN><BR /><BR /><SPAN title="">Is it possible to change this 400mV output?</SPAN><BR /><SPAN class="" title="">(Looking for the same function as the OUTPUT_TRG bit in the PMU_REG_3P0 register)</SPAN></SPAN></P><P><SPAN class="" lang="en"><SPAN class="" title=""></SPAN></SPAN></P><P>Many thanks,</P><P>Yoshida</P></BODY></HTML> Tue, 01 Oct 2019 06:43:27 GMT https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/USB-high-speed-regulator/m-p/933381#M3841 yoshida_satoru 2019-10-01T06:43:27Z Re: USB high-speed regulator https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/USB-high-speed-regulator/m-p/933382#M3842 <HTML><HEAD></HEAD><BODY><P>Hi Yoshida Satoru</P><P></P><P>That 400 mV mentioned in the Reference Manual is only seen by the driver transceiver, so you actually will not have an output voltage for the High-speed transceiver regulator, you only have the Data lines working a the nominal 5V.</P><P></P><P>Hope this info helps</P><P>Best regards</P></BODY></HTML> Mon, 07 Oct 2019 20:54:55 GMT https://community.nxp.com/t5/i-MX-RT-Crossover-MCUs/USB-high-speed-regulator/m-p/933382#M3842 jorge_a_vazquez 2019-10-07T20:54:55Z