---
title: "REGIN and REGOUT pins on W7500P"
url: "https://maker.wiznet.io/forum/12354"
markdown_url: "https://maker.wiznet.io/forum/12354/md"
type: "Forum topic"
category: "MCU & Boards"
author: "Ilya"
created: "2017-07-04T07:51:38+09:00"
last_activity: "2017-07-06T08:45:43+09:00"
language: "en"
views: 1214
replies: 2
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# REGIN and REGOUT pins on W7500P

## Question

Asked by Ilya on 2017-07-04 in MCU & Boards.

Hello! We have a question about W7500P crystal. There is an input of REGIN and REGOUT. For what they can be used??? To W7500 Datasheet Manual v1.1.1 about it it is written nothing.

## Replies

### Reply 1 by jim, 2017-07-05

Please refer to the following link.

First, please refer to Data Sheet in <http://wizwiki.net/wiki/doku.php?id=products:w7500p:documents>

Second, refer to Pin Description in <http://wizwiki.net/wiki/doku.php?id=products:w7500p:overview:pinassignment>

Thanks.

### Reply 2 by Ilya, 2017-07-06 (in reply to reply 1)

Thanks for your answer.

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Source: https://maker.wiznet.io/forum/12354