---
title: "W5500 while system is in sleep mode."
url: "https://maker.wiznet.io/forum/15014"
markdown_url: "https://maker.wiznet.io/forum/15014/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "Vien Huy Nguyen"
created: "2023-08-17T15:59:10+09:00"
last_activity: "2023-09-24T15:26:25+09:00"
language: "en"
views: 234
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# W5500 while system is in sleep mode.

## Question

Asked by Vien Huy Nguyen on 2023-08-17 in Ethernet Chips.

Is there anyway to force the power consumption of W5500 to the lowest the preserve power when the system goes into sleep mode?

## Replies

### Reply 1 by Eugeny, 2023-09-24

Power down mode in PHYCFGR? When PHY is put in power down mode (digital part must still be able to operate).

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Source: https://maker.wiznet.io/forum/15014