4.2.2 Mechanical Buttons

SAM R21 Xplained Pro contains two mechanical buttons. One button is the RESET button connected to the SAM R21 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.

Table 4-7. Mechanical Buttons
Pin on SAM R21	Silkscreen text
RESETN	RESET
PA28	SW0

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