https://community.nxp.com/t5/S32G/S32G3-SGMII-reference-clock/m-p/2273680#M15776 <P>hi,<SPAN>MichaelTao</SPAN></P> <P>感谢您联系我们技术支持！</P> <P>我会尽快帮助您检查这个问题！</P> <P>BR</P> <P>Joey</P> Mon, 05 Jan 2026 09:25:28 GMT Joey_z 2026-01-05T09:25:28Z https://community.nxp.com/t5/S32G/S32G3-SGMII-reference-clock/m-p/2272639#M15774 <P>您好，</P><P>我在使用S32G399AACK1VUCT作硬件设计，想把PCIE0的通道配置为SGMII和以太网关通讯。</P><P>我的疑问是在这个应用中，参考时钟必须来自于PCIE0_CLK外接的100/125MHz参考时钟，还是说也可以设置为使用内部参考时钟？</P><P>&nbsp;</P><P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="MichaelTao_0-1767600034291.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/371699i878BAE742E0782EA/image-size/medium?v=v2&amp;px=400" role="button" title="MichaelTao_0-1767600034291.png" alt="MichaelTao_0-1767600034291.png" /></span></P><P>&nbsp;</P> Mon, 05 Jan 2026 08:04:16 GMT https://community.nxp.com/t5/S32G/S32G3-SGMII-reference-clock/m-p/2272639#M15774 MichaelTao 2026-01-05T08:04:16Z https://community.nxp.com/t5/S32G/S32G3-SGMII-reference-clock/m-p/2273680#M15776 <P>hi,<SPAN>MichaelTao</SPAN></P> <P>感谢您联系我们技术支持！</P> <P>我会尽快帮助您检查这个问题！</P> <P>BR</P> <P>Joey</P> Mon, 05 Jan 2026 09:25:28 GMT https://community.nxp.com/t5/S32G/S32G3-SGMII-reference-clock/m-p/2273680#M15776 Joey_z 2026-01-05T09:25:28Z https://community.nxp.com/t5/S32G/S32G3-SGMII-reference-clock/m-p/2274052#M15777 <P>hi,<SPAN>MichaelTao</SPAN></P> <P>参考RMS32G3, 在Gen3模式下需要使用外部时钟，在Gen1/2模式下内部时钟和外部时钟都可以考虑。</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="Joey_z_0-1767606748723.png" style="width: 400px;"><img src="https://community.nxp.com/t5/image/serverpage/image-id/371718i4FAC839F30862488/image-size/medium?v=v2&amp;px=400" role="button" title="Joey_z_0-1767606748723.png" alt="Joey_z_0-1767606748723.png" /></span></P> <P>希望这些信息可以帮助到您！</P> <P>BR</P> <P>Joey</P> <P>&nbsp;</P> Mon, 05 Jan 2026 09:54:45 GMT https://community.nxp.com/t5/S32G/S32G3-SGMII-reference-clock/m-p/2274052#M15777 Joey_z 2026-01-05T09:54:45Z