Microchip Technology SAM E70 Xplained Ultra, User Manual

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5. Hardware Features
5.1 Xplained Pro Standard Extension Header
All Xplained Ultra Kits have many dual row, 20-pin, 100 mil extension headers. Xplained Ultra MCU
boards have male headers, while Xplained Ultra extensions have their female counterparts as shown in
the image below.
Note: All pins are not always connected.
The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Ultra
MCU boards or to access the pins of the target MCU on Xplained Ultra MCU boards directly.
Figure 5-1. Extension Headers
All connected pins follow the defined pinout description as shown in the following table.
Table 5-1. Xplained Pro Standard Extension Header
Pin number Name Description
1 ID Communication line to the ID chip on an extension board
2 GND Ground
3 ADC(+) Analog-to-Digital Converter, alternatively positive part of differential ADC
4 ADC(-) Analog-to-Digital Converter, alternatively negative part of differential ADC
5 GPIO1 General purpose I/O
6 GPIO2 General purpose I/O
7 PWM(+) Pulse-Width Modulation, alternatively positive part of differential PWM
8 PWM(-) Pulse-Width Modulation, alternatively negative part of differential PWM
9 IRQ/INT/GPIO Interrupt request line and general purpose I/O
10 SPI SS B/GPIO SPI Slave Select or general purpose I/O
11 I
2
C SDA Data line for I
2
C interface. Always implemented, bus type
12 I
2
C SCL Clock line for I
2
C interface. Always implemented, bus type
13 UART RX Receiver line of target device UART
Hardware Features
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2019 Microchip Technology Inc.
DS70005389A-page 12