References

Value
[1]. BSW Touch Sensor Design Guide - http://www.atmel.com/Images/doc10752.pdf
[2]. SAM D Peripheral Touch Controller User Guide - http://www.atmel.com/Images/Atmel-42195-QTouch-General-Library-Peripheral-Touch-Controller_User-Guide.pdf
[3]. PTC Robustness Design Guide - http://www.atmel.com/Images/Atmel-42360-PTC-Robustness-Design-Guide_ApplicationNote_AT09363.pdf