Xplained Pro Power Header - Atmel SAM4E Xplained Pro User Manual

Pin number Name
49 VCC
50 GND
3.4.3.

Xplained Pro Power Header

The power header can be used to connect external power to the SAM4E Xplained Pro kit. The kit will
automatically detect and switch to any external power if supplied. The power header can also be used as
supply for external peripherals or extension boards. Care must be taken not to exceed the total current
limitation of the on-board regulator when using the 3.3V pin.
Table 3-6 Xplained Pro Power Header
Pin number
1
2
3
4
RGB interface description
3.3V power supply for extension board
Ground
Pin name Description
VEXT_P5V0 External 5V input
GND Ground
VCC_P5V0 Unregulated 5V (output, derived from one of the input sources)
VCC_P3V3 Regulated 3.3V (output, used as main power supply for the kit)
MCU interface description
Atmel SAM4E Xplained Pro [USER GUIDE]
Atmel-42216B-SAM4E-Xplained-Pro_User Guide-09/2015
12