https://community.nxp.com/t5/LPC-Microcontrollers/LPC5536-Flexcomm-Voltage-Rails/m-p/2047295#M57717 <P>Hi,</P><P>on the LPC5536 64 Pin Package. I want to use 3.3V on VDDIO_1 and 1.8V on VDDIO_2 but it seems like there is no Flexcomm Peripheral that has all 4 SPI Signals within a single Voltage Domain.</P><P>They are always split up between VDDIO_1 and VDDIO_2 ... am i missing something or is this intentional ??</P> Wed, 19 Feb 2025 12:00:11 GMT mf89 2025-02-19T12:00:11Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC5536-Flexcomm-Voltage-Rails/m-p/2047295#M57717 <P>Hi,</P><P>on the LPC5536 64 Pin Package. I want to use 3.3V on VDDIO_1 and 1.8V on VDDIO_2 but it seems like there is no Flexcomm Peripheral that has all 4 SPI Signals within a single Voltage Domain.</P><P>They are always split up between VDDIO_1 and VDDIO_2 ... am i missing something or is this intentional ??</P> Wed, 19 Feb 2025 12:00:11 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC5536-Flexcomm-Voltage-Rails/m-p/2047295#M57717 mf89 2025-02-19T12:00:11Z https://community.nxp.com/t5/LPC-Microcontrollers/LPC5536-Flexcomm-Voltage-Rails/m-p/2050262#M57745 <P>Unfortunately, this is chip design. I apologize for the inconvenience this may cause you.&nbsp;<BR /><BR />Best regards,<BR />Omar</P> Mon, 24 Feb 2025 22:11:01 GMT https://community.nxp.com/t5/LPC-Microcontrollers/LPC5536-Flexcomm-Voltage-Rails/m-p/2050262#M57745 Omar_Anguiano 2025-02-24T22:11:01Z