4.3.2 Mechanical Buttons

SAMC21N Xplained Pro contains two mechanical buttons connected to the SAMC21N. One button is the RESET button connected to the reset line and the other is a generic user configurable button. When a button is pressed it will drive the I/O line to GND.

Info: There is no pull-up resistor connected to the generic user button. Remember to enable the internal pull-up in the SAMC21N to use the button.
Table 4-14. Mechanical Buttons
SAMC21N pinFunctionShared functionality
RESETNRESETShield, Shield(2), and EDBG
PB19GPIO for User Button-