Arduino Connector Footprint

SAM L22 Xplained Pro implements Arduino shield connectors footprints based on the Arduino Uno. All references to Arduino pin names are taken from the official Arduino schematics of the Arduino Uno.

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 1. J902 - Power
J902 pin SAM L22 pin Arduino pin name Function Shared functionality
1 - RFU - -
2 - IOREF VCC_TARGET_P3V3 -
3 RESETN RESET TARGET_RESET Shield, EDBG, and Cortex®Debug
4 - 3.3V VCC_TARGET_P3V3 -
5 - 5V VCC_P5V0 -
6 - GND GND -
7 - GND GND -
8 - VIN VCC_EXT_P5V0 -
Table 2. J903 - Analog
J903 pin SAM L22 pin Arduino pin name Function Shared functionality
1 PC00 ADC0 AIN16 EXT2 and EDBG GPIO2
2 PC01 ADC1 AIN17 EXT2, User SW0, and EDBG GPIO3
3 PA04 ADC2 AIN4 EXT2
4 PA05 ADC3 AIN5 EXT2
5 PA06 ADC4 AIN6 EXT3 and SLCD
6 PA07 ADC5 AIN7 EXT3 and SLCD
Table 3. J904 - Digital Low
J904 pin SAM L22 pin Arduino pin name Function Shared functionality
1 PB13 D0 / RX0 SERCOM3 PAD[1] UART RX SLCD
2 PB12 D1 / TX0 SERCOM3 PAD[0] UART TX SLCD
3 PB11 D2 GPIO SLCD
4 PB14 D3 GPIO SLCD
5 PB15 D4 GPIO SLCD
6 PC14 D5 GPIO SLCD
7 PC15 D6 GPIO SLCD
8 PB20 D7 GPIO SLCD
Table 4. J901 - Digital High
J901 pin SAM L22 pin Arduino pin name Function Shared functionality
1 PC05 D8 GPIO SLCD
2 PC06 D9 GPIO SLCD
3 PC07 D10 / SPI-SS GPIO SLCD
4 PC12 D11 / SPI-MOSI SERCOM1 PAD[0] SPI MOSI SLCD and Shield
5 PC11 D12 / SPI-MISO SERCOM1 PAD[3] SPI MISO SLCD and Shield
6 PC13 D13 / SPI-SCK SERCOM1 PAD[1] SPI SCK SLCD and Shield
7 - GND - -
8 PA03 AREF ADC / DAC VREFA EXT1
9 PB30 SDA SERCOM5 PAD[0] I²C SDA EXT1, EXT2, EXT3, Crypto, and EDBG I²C
10 PB31 SCL SERCOM5 PAD[1] I²C SCL EXT1, EXT2, EXT3, Crypto, and EDBG I²C
Table 5. J900 - SPI
J900 pin SAM L22 pin Arduino pin name Function Shared functionality
1 PC11 MISO SERCOM1 PAD[3] SPI MISO SLCD and Shield
2 - 5V VCC_P5V0 -
3 PC13 SCK SERCOM1 PAD[1] SPI SCK SLCD and Shield
4 PC12 MOSI SERCOM1 PAD[0] SPI MOSI SLCD and Shield
5 RESETN RESET TARGET_RESET Shield, EDBG, and Cortex Debug
6 - GND GND -
Parent topic: Connectors