application code. For further information on how to configure and use the GPIO monitoring features, see
Atmel Data Visualizer and the EDBG User Guide.
Table 4-31 GPIO Lines Connected to the EDBG
SAM C21 pin Function Shared functionality
PB12 GPIO0 Shield and EXT1
PB16 GPIO1 EXT2
PB17 GPIO2 EXT2
PA28 GPIO3 User Button and EXT3
Atmel SAM C21 Xplained Pro [USER GUIDE]
Atmel-42460C-SAM C21 Xplained Pro_User Guide-10/2015
31
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