Microchip Technology SAM R30 Xplained Pro User Manual page 15

Figure 4-2. SAM R30 Xplained Pro Connector Overview
4.2.1 Xplained Pro Extension Headers
The SAM R30 Xplained Pro headers EXT1 and EXT3 offer access to the I/O of the MCU in order to
expand the board by connecting extensions to the board. These headers are based on the standard
extension header specified in the table below. The headers have a pitch of 2.54 mm.
Table 4-1. Extension Header EXT1
EXT1 Pin
1 [ID]
2 [GND]
3 [ADC(+)]
4 [ADC(-)]
5 [GPIO1]
6 [GPIO2]
7 [PWM(+)]
8 [PWM(-)]
9 [IRQ/GPIO]
10 [SPI_SS_B/GPIO] PA23
11 [TWI_SDA]
12 [TWI_SCL]
13 [USART_RX]
14 [USART_TX]
15 [SPI_SS_A]
16 [SPI_MOSI]
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2017 Microchip Technology Inc.
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SAM R30 Function
Pin
- -
- -
PA06 AIN[6]
PA07 AIN[7]
PA13 GPIO
PA28 GPIO
PA18 TCC0/WO[2]
PA19 TCC0/WO[3]
PA22 EXTINT[6]
GPIO
PA16 SERCOM1 PAD[0] I²C SDA
PA17 SERCOM1 PAD[1] I²C SCL
PA05 SERCOM0 PAD[1] UART RX
PA04 SERCOM0 PAD[0] UART TX
PB03 SERCOM5 PAD[1] SPI SS
PB22 SERCOM5 PAD[2] SPI MOSI
User Guide
ATSAMR30-XPRO
Shared Functionality
Pin to communicate with the ID
chip on an extension board
Ground
USB
SW0
LED1
LED0
SW0
EXT3 and EDBG I²C
EXT3 and EDBG I²C
Virtual COM Port
Virtual COM Port
EXT3 and EDBG SPI
DS50002612A-page 15