Atmel I/O1 Xplained Pro User Manual page 6

Table 3-2 Xplained Pro Standard Extension Header
Pin number Name
1 ID
2 GND
3 ADC(+)
4 ADC(-)
5 GPIO1
6 GPIO2
7 PWM(+)
8 PWM(-)
9 IRQ/GPIO
10 SPI_SS_B/
GPIO
2
11 I C_SDA
2
12 I C_SCL
13 UART_RX
14 UART_TX
15 SPI_SS_A
16 SPI_MOSI
17 SPI_MISO
18 SPI_SCK
19 GND
20 VCC
Description
Communication line to the ID chip on an extension board
Ground
Analog to digital converter, alternatively positive part of differential
ADC
Analog to digital converter, alternatively negative part of differential
ADC
General purpose I/O
General purpose I/O
Pulse width modulation, alternatively positive part of differential
PWM
Pulse width modulation, alternatively negative part of differential
PWM
Interrupt request line and/or general purpose I/O
Slave select for SPI and/or general purpose I/O
2
Data line for I C interface. Always implemented, bus type.
2
Clock line for I C interface. Always implemented, bus type.
Receiver line of target device UART
Transmitter line of target device UART
Slave select for SPI. Should preferably be unique.
Master out slave in line of serial peripheral interface. Always
implemented, bus type.
Master in slave out line of serial peripheral interface. Always
implemented, bus type.
Clock for serial peripheral interface. Always implemented, bus type.
Ground
Power for extension board
Atmel I/O1 Xplained Pro [USER GUIDE]
Atmel-42078B-IO1-Xplained-Pro_User Guide-10/2015
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