Microchip Technology SAMC21N Xplained Pro Manual page 14

Pin on EXT1
8 [PWM(-)]
9 [IRQ/GPIO]
10 [SPI_SS_B/GPIO]
11 [TWI_SDA]
12 [TWI_SCL]
13 [USART_RX]
14 [USART_TX]
15 [SPI_SS_A]
16 [SPI_MOSI]
17 [SPI_MISO]
18 [SPI_SCK]
19 [GND]
20 [VCC]
Table 4-2. Extension Header EXT2
Pin on EXT2
1 [ID]
2 [GND]
3 [ADC(+)]
4 [ADC(-)]
5 [GPIO1]
6 [GPIO2]
7 [PWM(+)]
8 [PWM(-)]
9 [IRQ/GPIO]
10 [SPI_SS_B/GPIO]
11 [TWI_SDA]
©
2017 Microchip Technology Inc.
SAMC21N pin Function
PB13 TC4/WO[1] or X[13]/Y[29]
PA22 IRQ6 or TC4/WO[0] or TCC1/
WO[0] or X[10]/Y[26]
PA23 GPIO or TC4/WO[1] or TCC1/
WO[1] or X[11]/Y[27]
PB16 SERCOM5 PAD[0] I
PB17 SERCOM5 PAD[1] I
PA13 SERCOM2 PAD[1] UART RX
PA12 SERCOM2 PAD[0] UART TX
PC28 SERCOM1 PAD[1] SPI SS
PA18 SERCOM1 PAD[2] SPI MOSI
or X[6]/Y[22]
PC27 SERCOM1 PAD[0] SPI MISO -
PA19 SERCOM1 PAD[3] SPI SCK
or X[7]/Y[23]
- -
- -
SAMC21N pin Function
- -
- -
PA08 ADC1_AIN[10] or X[0]/Y[16]
PA09 ADC1_AIN[11] or X[1]/Y[17]
PA20 SERCOM3 PAD[2] UART
RTS or X[8]/Y[24]
PA21 SERCOM3 PAD[3] UART
CTS or X[9]/Y[25]
PB30 TC0/WO[0]
PB31 TC0/WO[1]
PC24 IRQ0/GPIO
PC25 GPIO
PA16 SERCOM1 PAD[0] I
User Guide
SAMC21N Xplained Pro
Shared functionality
-
EDBG GPIO1
-
2
C SDA -
2
C SCL -
-
-
-
-
-
Ground.
Power for extension board.
Shared functionality
Communication line to the
ID chip on an extension
board.
Ground.
-
-
-
-
Shield
Shield
EDBG GPIO2
-
2
C SDA EXT3, Shield,
and Crypto Device
DS70005318A-page 14
2
EDBG I C