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nRF51822 ADC voltage

Dear sir.

From [nRF51_Series_Reference_manual], ADC maximum input voltage has two rules.

  1. The ADC should not be exposed to higher voltage than 2.4 V on an AIN pin after prescaling: Input voltage x prescaling = max. 2.4 V.

  2. A GPIO pin must not be exposed to higher voltage than VDD + 0.3 V, according to the Absolute maximum ratings from the nRF51x22 Product Specification.

If ADC input is over maximum input voltage, what happend?

nRF51822 have damage? or reset or do something for protect chip ?

Best and regards. Thank you.