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https://e2e.ti.com/support/interface-group/interface/f/interface-forum/1394806/faq-dp83822i-does-oscillator-clock-or-other-external-clock-source-to-xi-pin-need-to-be-stable-before-phy-power
工具与软件：
是、外部时钟模式下的时钟应在功率斜升时可用。 如果不可用、建议在外部时钟稳定时、将 RESET_N 保持在低电平并至少在100us 后将其释放。
