Microchip Technology SAMC21N Xplained Pro Manual page 13

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
headers have a pitch of 2.54mm.
Table 4-1. Extension Header EXT1
Pin on EXT1
1 [ID]
2 [GND]
3 [ADC(+)]
4 [ADC(-)]
5 [GPIO1]
6 [GPIO2]
7 [PWM(+)]
©
2017 Microchip Technology Inc.
SAMC21N pin Function
- -
- -
PB09 ADC0_AIN3 or
SDADC_INP[1] or Y[15]
PB08 ADC0_AIN2 or
SDADC_INN[1] or Y[14]
PA10 SERCOM2 PAD[2] UART
RTS or X[2]/Y[18]
PA11 SERCOM2 PAD[3] UART
CTS or X[3]/Y[19]
PB12 TC4/WO[0] or X[12]/Y[28]
User Guide
SAMC21N Xplained Pro
Xplained Pro Standard Extension
Shared functionality
Communication line to the
ID chip on an extension
board.
Ground.
Shield
Shield
-
-
EDBG GPIO0
Header. The
DS70005318A-page 13