---
title: "Interfacing WIZ107SR with xmega128A1 board"
url: "https://maker.wiznet.io/forum/9485"
markdown_url: "https://maker.wiznet.io/forum/9485/md"
type: "Forum topic"
category: "Serial-to-Ethernet & ConfigTool"
author: "jameskim"
created: "2013-09-08T23:37:10+09:00"
last_activity: "2017-05-04T08:29:52+09:00"
language: "en"
views: 386
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Interfacing WIZ107SR with xmega128A1 board

## Question

Asked by jameskim on 2013-09-08 in Serial-to-Ethernet & ConfigTool.

## This topic came from QnA of WIZnet Homepage

HI,
I am trying to interface WIZ107SR with xmega128A1 board.

1. The power supply from xmega128a1 is 5V. how do I connect it to wiz107sr?

2. PIN 1 and 2 says VCC 3.3V should I connect both the pins to get 3.3V or any one will work?

---

Source: https://maker.wiznet.io/forum/9485