Microchip Technology SAMC21N Xplained Pro Manual page 16

Pin on EXT3
13 [USART_RX]
14 [USART_TX]
15 [SPI_SS_A]
16 [SPI_MOSI]
17 [SPI_MISO]
18 [SPI_SCK]
19 [GND]
20 [VCC]
4.2.2 Arduino Connectors
SAMC21N Xplained Pro implements Arduino shield connectors based on the
to Arduino pin names are taken from the official Arduino
Caution: The target section of SAMC21N Xplained Pro can be powered by 3.3V or 5.0V. The
maximum voltage the I/O pins can tolerate depends on the supply voltage. Providing higher
voltages like 5V to an I/O pin when the ATSAMC21N18A is powered by 3.3V could damage the
board.
Info: Note that all pins do not have the exact same functionality as on the Arduino Uno on the
shield connectors. Each shield should be checked for compatibility before it is connected.
Table 4-4. J802 - Power
Pin on J802 SAMC21N pin Arduino pin name Function
1
2
3
4
5
6
7
8
©
2017 Microchip Technology Inc.
SAMC21N pin
PC17
PC16
PC13
PC14
PC12
PC11
-
-
- RFU
- IOREF
RESETN RESET
- 3.3V
- 5V
- GND
- GND
- VIN
SAMC21N Xplained Pro
Function
SERCOM6 PAD[1] UART RX
SERCOM6 PAD[0] UART TX
SERCOM7 PAD[1] SPI SS
SERCOM7 PAD[2] SPI MOSI Shield, Shield(2), and
SERCOM7 PAD[0] SPI MISO Shield, Shield(2), and
SERCOM7 PAD[3] SPI SCK
-
-
schematics of the Arduino Uno.
-
VCC_TARGET_P3V3_P5V0 -
TARGET_RESET
VCC_P3V3
VCC_P5V0
GND
GND
VCC_EXT_P5V0
User Guide
Shared functionality
-
-
-
EDBG
SPI
EDBG
SPI
Shield, Shield(2), and EDBG
SPI
Ground.
Power for extension board.
Arduino Uno. All references
Shared functionality
-
-
-
-
-
-
-
DS70005318A-page 16