Intel Quark D2000 Design Manual page 37

General Purpose I/O (GPIO)
 Metastability registers for GPIO read data
 Interrupt mode supported for all GPIOs, configurable as follows:
 Active High Level
 Active Low Level
 Rising Edge
 Falling Edge
 Both Edge

Debounce logic for interrupt sources
November 2016
Document Number: 333580-002EN
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Intel® Quark™ Microcontroller D2000
Platform Design Guide
37