---
title: "Rs 485 9 bit adressing"
url: "https://maker.wiznet.io/forum/15013"
markdown_url: "https://maker.wiznet.io/forum/15013/md"
type: "Forum topic"
category: "MCU & Boards"
author: "karakasali"
created: "2023-08-17T12:55:32+09:00"
last_activity: "2023-08-17T12:55:32+09:00"
language: "en"
views: 187
replies: 0
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# Rs 485 9 bit adressing

## Question

Asked by karakasali on 2023-08-17 in MCU & Boards.

On our documet some place write kime this about serial uart " 8 and 9 bit " and another place" using for Rs485" but in code header file include only standart rs232. Which is true? Is w7500p support 9 bit serial comm for Multi node cominication or not? Please upgrade our datasheet and apllication note or header file. What is true?

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Source: https://maker.wiznet.io/forum/15013