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Silicon Labs EFM32: How should I connect when using an external oscillator?

EFx32

When using an oscillator such as a TCXO instead of a crystal, connect an external clock to HFXTAL_N (or LFXTAL_N) and leave HFXTAL_P (or LFXTAL_P) open.
For more information, please refer to Application Note AN0002.

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