Xplained Pro Headers And Connectors - Microchip Technology SAM B11ZR Xplained Pro User Manual

3.6

Xplained Pro Headers and Connectors

3.6.1 Xplained Pro Standard Extension Header
All Xplained Pro kits have many dual row, 20-pin, 100-mil extension headers. 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.
Info: Not all pins are always connected on all extension headers.
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 the Xplained Pro boards.
Table 3-5. Xplained Pro Standard Extension Header
Pin Number
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
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2017 Microchip Technology Inc.
Pin Name
ID Pin to communicate with the ID chip on an extension board.
GND Ground
ADC(+) Analog-to-Digital Converter; alternatively, a pin for the positive
terminal of a differential ADC.
ADC(-) Analog-to-Digital Converter; alternatively, a pin for the negative
terminal of a differential ADC.
GPIO1 General purpose I/O pin.
GPIO2 General purpose I/O pin.
PWM(+) Pulse width modulation; alternatively, a pin for the positive part of a
differential PWM.
PWM(-) Pulse width modulation; alternatively, a pin for the negative part of a
differential PWM.
IRQ/GPIO Interrupt request pin and/or general purpose I/O pin.
SPI_SS_B/ Slave select pin for Serial Peripheral Interface (SPI) and/or general
GPIO purpose I/O pin.
2
I C_SDA Data pin for I
2
I C_SCL Clock pin for I
UART_RX Receiver pin of target device UART.
UART_TX Transmitter pin of target device UART.
SPI_SS_A Slave select for SPI. This pin should preferably not be connected to
anything else.
SPI_MOSI SPI master out slave in pin. Always connected, bus type.
SPI_MISO SPI master in slave out pin. Always connected, bus type.
Description
2
C interface. Always connected, bus type.
2
C interface. Always connected, bus type.
User Guide
ATSAMB11ZR
DS70005334A-page 10