Why NRF51x GPIOTE input mode static current consumpts so high?

[Songplus]

As the datasheet showing The GPIOTE input mode consumpt upto 22uA ,it is inconceivable.I want use NRF51822 to design a ultra low power consumption production ,and use the GPIOTE INput even to wake up the system from sleep.So if use the GPIOTE input mode ,Does it mean that the system consumpts 22uA to monitor the input EVEN,or what the paramenter of the datasheet giving is wrong? Pleas give me a solution.

[Songplus]

SOS ....I need a professional answer.Where are the Nordic engineers? Why the chip's GPIOTE consums current so high?

[Lars Sundell]

The root cause for the elevated currnet consuption is increased lakage dur to a larger part of the device has to be powered for the GPIOTE input mode to be on. Unfortunately that explanation does not help in your case, and as PrithviRaj Narendra points out. PORT event is the recommended solution.