AM4384: RTC crystal load capacitance

Part Number:AM4384

Hi,

can an RTC crystal with lower C load, in the range of 6 to 9pF be used for the AM4384?

The main constraint is on the CPU side, where a minimum of 12pF is required according to the datasheet.

Is that a hard requirement or can Crystals with lower C loads be considered?

Thanks

Fred