https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289312#M15792 <P>不客气，有任何问题欢迎随时联系我们NXP技术支持！</P> Wed, 07 Jan 2026 09:31:54 GMT Joey_z 2026-01-07T09:31:54Z https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289149#M15785 <P>您好，</P><P>我在使用S32G3_Schematic_Checklist.xlsx这个工具的是有一个疑问，</P><P>工具中N19这个PIN供电来源是VDD_IO_USB，对应的IO功能是USB_ULPI_CLK。</P><P>如果我想把这个IO配置为PFE_MAC2_TX_CLK_O的功能，电源来源还是VDD_IO_USB吗？还是说变为VDD_IO_GMAC0/1？</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="MichaelTao_0-1767766654560.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/371940iA4B802202509B357/image-size/medium?v=v2&amp;px=400" role="button" title="MichaelTao_0-1767766654560.png" alt="MichaelTao_0-1767766654560.png" /></span></P><P>&nbsp;</P> Wed, 07 Jan 2026 06:24:13 GMT https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289149#M15785 MichaelTao 2026-01-07T06:24:13Z https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289202#M15786 <P>hi,<SPAN>MichaelTao</SPAN></P> <P>感谢您联系我们NXP技术支持，我会帮助您检查这个问题！</P> <P>BR</P> <P>Joey</P> Wed, 07 Jan 2026 07:42:56 GMT https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289202#M15786 Joey_z 2026-01-07T07:42:56Z https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289257#M15790 <P>hi,<SPAN>MichaelTao</SPAN></P> <P><SPAN>参考S32G2RM 数据手册的附件，S32G2_IOMUX.xlsx文件，您可以找到N19对应管脚PL_08。</SPAN></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Joey_z_1-1767774131336.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/371967i03F0BF764E7491B4/image-size/medium?v=v2&amp;px=400" role="button" title="Joey_z_1-1767774131336.png" alt="Joey_z_1-1767774131336.png" /></span></P> <P>PL_08管脚在VDD_IO_USB电源域，这个管脚的功能可以进行复用，可以复用为<SPAN>USB_ULPI_CLK和PFE_MAC2_TX_CLK_O等多个功能，引脚供电由该引脚所属的 I/O 域决定，与引脚的复用功能无关。</SPAN></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Joey_z_0-1767774092496.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/371964iC741430BE4F69621/image-size/medium?v=v2&amp;px=400" role="button" title="Joey_z_0-1767774092496.png" alt="Joey_z_0-1767774092496.png" /></span></P> <P>BR</P> <P>Joey</P> Wed, 07 Jan 2026 08:32:36 GMT https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289257#M15790 Joey_z 2026-01-07T08:32:36Z https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289270#M15791 非常感谢您的回复 Wed, 07 Jan 2026 08:50:01 GMT https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289270#M15791 MichaelTao 2026-01-07T08:50:01Z https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289312#M15792 <P>不客气，有任何问题欢迎随时联系我们NXP技术支持！</P> Wed, 07 Jan 2026 09:31:54 GMT https://community.nxp.com/t5/S32G/S32G3-IO-N19-Power-domain/m-p/2289312#M15792 Joey_z 2026-01-07T09:31:54Z