nrf52832 FCLK pin

[Hk]

Hi,

My sensor uses SPI communication and need 32.768kHz external clock pin FCLK , I connect 32.768kHz clock to XL1 and XL2 but my problem is which pin can I use it for FCLK ?

[RK]

I'm not convinced reading that data sheet that FCLK has to be synchronous in which case you could generate it separately and pipe it in.