Microchip Technology SAMC21N Xplained Pro, Manual

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Figure 4-2. SAMC21N Xplained Pro Connector Overview
4.2.1 Xplained Pro Extension Headers
The SAMC21N Xplained Pro headers EXT1, EXT2, and EXT3 offers access to the I/O of the
microcontroller in order to expand the board e.g. by connecting extensions to the board. These headers
are based on the standard extension header specified in
Xplained Pro Standard Extension Header . The
headers have a pitch of 2.54mm.
Table 4-1. Extension Header EXT1
Pin on EXT1 SAMC21N pin Function Shared functionality
1 [ID] - - Communication line to the
ID chip on an extension
board.
2 [GND] - - Ground.
3 [ADC(+)] PB09 ADC0_AIN3 or
SDADC_INP[1] or Y[15] Shield
4 [ADC(-)] PB08 ADC0_AIN2 or
SDADC_INN[1] or Y[14] Shield
5 [GPIO1] PA10 SERCOM2 PAD[2] UART
RTS or X[2]/Y[18] -
6 [GPIO2] PA11 SERCOM2 PAD[3] UART
CTS or X[3]/Y[19] -
7 [PWM(+)] PB12 TC4/WO[0] or X[12]/Y[28] EDBG GPIO0
SAMC21N Xplained Pro
©
2017 Microchip Technology Inc.
User Guide
DS70005318A-page 13