Xplained Pro Headers And Connectors - Microchip Technology ATmega4809 Xplained Pro User Manual

Power Source
Embedded debugger
USB
The kit automatically detects the available power sources and chooses which to use according to the
following priority:
1. External power.
2. Embedded debugger USB.
Info: External power is required when 500 mA from a USB connector is not enough to power
the board with possible extension boards.
3.4

Xplained Pro Headers and Connectors

3.4.1 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. The
following table provides the pin description of all the connected pins.
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 3-4. Xplained Pro Standard Extension Header
Pin Number
1
2
3
4
5
6
©
2018 Microchip Technology Inc.
Voltage Requirements
host operation is not
required.
4.4V to 5.25V (according
to USB specification)
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.
ATmega4809 Xplained Pro
Current Requirements
500 mA (according to
USB specification)
Description
User Guide
Xplained Pro
Connector Marking
DEBUG USB
DS50002716A-page 9