---
title: "w6100 Sn_SR status == 0x11 undocumented?"
url: "https://maker.wiznet.io/forum/15639"
markdown_url: "https://maker.wiznet.io/forum/15639/md"
type: "Forum topic"
category: "Ethernet Chips"
author: "oruerik"
created: "2025-03-12T00:30:04+09:00"
last_activity: "2025-04-09T21:07:12+09:00"
language: "en"
views: 5
replies: 1
source: "WIZnet Makers forum (https://maker.wiznet.io/forum/)"
---

# w6100 Sn_SR status == 0x11 undocumented?

## Question

Asked by oruerik on 2025-03-12 in Ethernet Chips.

Hi, We have an issue, occasionally when reading the Sn_SR register, we get a value of 0x11.

This value is not documented in the "Hardwired Dual TCP/IP Stack Controller" V1.0.5 document.

Currently when we get an undocumented Status, we declare a fatal error and stop!

- What does Sn_SR status equal 0x11 mean?

- Can it be safely ignored?

Any help is appreciated.

~erik

## Replies

### Reply 1 by oruerik, 2025-04-09

Hi, We are also seeing other undocumented Sn_SR status values....
EG: 0xe6 and others...
Should we simply ignore all undocumented values?

Regards

~e

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Source: https://maker.wiznet.io/forum/15639