4.2 Power Distribution

The SAM R34 Xplained Pro Evaluation Kit can be powered by:
  • EDBG USB
  • TARGET USB
  • External (5V)
The kit has a power mux which automatically chooses the power source if two or all three of the power sources are available to the kit at the same time.
The kit contains:
  • Two on-board voltage regulators (3.3V):

    • One for an EDBG and XAM section

    • Another one for SAM R34

  • IO peripherals
  • Power Measurement Section (XAM)
Figure 4-1. Power Supply Block Diagram