Can USB clock source be used for the internal high-speed RC oscillator (HIRC)?

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Henry
Posts: 41
Joined: 20 Mar 2017, 10:54

24 Mar 2017, 15:14

The NuMicro® Nano120 /130 series can use an external low-speed oscillator (LXT) to ensure the accuracy HIRC of to 0.25%, which is compliant with the USB specification.
The NuMicro® NUC121/125 series can use USB SOF(Start of Frame) to ensure the accuracy HIRC of to 0.25%.
The other NuMicro® series need to use an external oscillator as the USB clock source,
Please refer the USB feature of each NuMicro® series for supporting crystal-less or not.
林昌宏/ Henry
新唐科技 / nuvoTon technology corporation
新竹科學工業園區30077研新三路4號
TEL : (03) 5770066#38077
Email : CHLIN55@nuvoTon.com

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