Xplained Pro Headers And Connectors - Microchip Technology SAM R30 Xplained Pro User Manual

2. Embedded Debugger USB.
3. Target USB.
3.5

Xplained Pro Headers and Connectors

3.5.1 Xplained Pro Standard Extension Header
All Xplained Pro kits have one or more dual row, 20-pin, 100-mil extension header. The Xplained Pro
MCU boards have male headers, while the Xplained Pro extensions have their female counterparts. All
connected pins follow the defined pin description in the table.
The extension headers can be used to connect a variety of Xplained Pro extensions to Xplained Pro MCU
boards or to access the pins of the target microcontroller on Xplained Pro MCU boards directly.
Table 3-5. Xplained Pro Standard Extension Header
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
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2017 Microchip Technology Inc.
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Info: External power is required when 500mA from a USB connector is not enough to power
the board with possible extension boards. A connected USB device in a USB host application
might easily exceed this limit.
Info: All pins are not always connected on all extension headers.
Pin Name
ID
GND
ADC(+)
ADC(-)
GPIO1
GPIO2
PWM(+)
PWM(-)
IRQ/GPIO
SPI_SS_B/
GPIO
2
I C_SDA
2
I C_SCL
Description
Pin to communicate with the ID chip on an extension board
Ground
Analog-to-Digital Converter; alternatively, a pin for the positive
terminal of a differential ADC
Analog-to-Digital Converter; alternatively, a pin for the negative
terminal of a differential ADC
General purpose I/O pin
General purpose I/O pin
Pulse width modulation; alternatively, a pin for the positive part of a
differential PWM
Pulse width modulation; alternatively, a pin for the negative part of a
differential PWM
Interrupt request pin and/or general purpose I/O pin
Slave select pin for Serial Peripheral Interface (SPI) and/or general
purpose I/O pin
2
Data pin for I C interface. Always connected, bus type
2
Clock pin for I C interface. Always connected, bus type
User Guide
ATSAMR30-XPRO
DS50002612A-page 12