IEEE100BASE-T1物理编码子层测试套件

需积分: 13 49 浏览量更新于2024-07-15 收藏 1.06MB PDF 举报

"Open Alliance 100BASE-T1 PCS Test Suite v1.1-dec.pdf" 这篇文档详细介绍了IEEE100BASE-T1物理编码子层（Physical Coding Sublayer, PCS）测试套件的第1.1版，由Curtis Donahue和Stephen Johnson来自UNH-IOL（University of New Hampshire InterOperability Laboratory）编写。该测试套件旨在帮助开发者评估他们的100BASE-T1 PCS基础产品的功能。100BASE-T1是一种高速局域网（LAN）标准，它允许数据在双绞线电缆上以100Mbps的速度传输。测试套件包含了PCS的发送和接收两部分，覆盖了状态图、编码与解码以及扰码与去扰码的测试。状态图是描述PCS模块在不同操作条件下的行为模型，用于确保设备在各种工作状态下能正确地进行数据转换。编码/解码测试确保了设备能够按照100BASE-T1的标准将原始数据转换为适合物理介质传输的信号，同时在接收端正确还原这些信号。而扰码/去扰码测试则检查设备是否能够有效地使用扰码技术来减少信号间的干扰，并在接收端正确去除扰码，恢复原始数据。此文档的发布日期为2017年8月3日，状态标记为“Final”，表明这是最终版本，可供公众使用。OPEN Alliance是一个专注于汽车和移动通信接口标准的行业组织，他们强调，只有OPEN Alliance SIG（Special Interest Group）的成员才有权使用和实施这份规范，前提是要遵守OPEN Alliance的治理文件、知识产权政策以及适用的Promoter或Adopters协议。OPEN Alliance的规格文档只能以电子或纸质形式复制，或者为了实现其定义的范围而使用。这份文档为开发和验证符合IEEE100BASE-T1标准的物理层设备提供了详尽的测试流程，对于保证汽车、工业和其他领域采用这种高速通信标准的产品质量至关重要。通过执行这些测试，开发者可以确保他们的产品能够在实际环境中可靠地运行，与其他100BASE-T1设备无缝互操作。

OPEN Alliance

Restriction Level: Public IEEE 100BASE-T1 Physical Coding Sublayer Test Suite | Aug-17 12

5 GROUP 1: PCS Transmit

Overview:

The tests defined in this section verify the PCS Transmit process defined for 100BASE-T1 capable

PHYs in sections 96.3.1 and 96.3.3 of the IEEE 802.3bw 100BASE-T1 Specification.

OPEN Alliance

Restriction Level: Public IEEE 100BASE-T1 Physical Coding Sublayer Test Suite | Aug-17 13

5.1 Test 3.1.1 – PCS Signaling

Purpose: To verify that the PCS properly performs the 4B/3B conversion, side-stream scrambling, and

ternary symbol generation.

References:

[1] IEEE Std. 802.3bw subclause 96.3.3.1 – 4B/3B conversion

[2] IEEE Std. 802.3bw subclause 96.3.3.3.1 – Side-stream scrambler polynomial

[3] IEEE Std. 802.3bw subclause 96.3.3.3.2 – Generation of Syn[2:0]

[4] IEEE Std. 802.3bw subclause 96.3.3.3.3 – Generation of Scn[2:0]

[5] IEEE Std. 802.3bw subclause 96.3.3.3.4 – Generation of scrambled bits Sdn[2:0]

[6] IEEE Std. 802.3bw subclause 96.3.3.3.5 – Generation of ternary pair (TA

, TB

)

[7] IEEE Std. 802.3bw table 96-1 – Idle symbol mapping in training

[8] IEEE Std. 802.3bw table 96-2 – Data symbols when TXMODE=SEND_N

[9] IEEE Std. 802.3bw table 96-3 – Idle symbols when TXMODE=SEND_N

Resource Requirements:

 A test station capable of capturing and decoding ternary symbols

 A compliant 100BASE-T1 Link Partner

 A line tap (Refer to appendix 3.C)

Discussion:

The 100BASE-T1 PCS uses a combination of a 4B3B conversion for MII data, side-stream

scrambling, and ternary symbols to encode the data for transmission on the line. In addition to the

scrambler, there are additional functions performed on the data and idle streams to eliminate the

correlation transmit data and to balance the power density.

This test is designed to ensure that the DUT properly performs the 100BAE-T1 encoding during

training, idle transmission, and data transmission.

Test Setup: Connect the Device Under Test (DUT) to the Link Partner via the line tap.

Test Procedure:

1. Configure the DUT as master and the Link Partner as slave.

2. Monitor and decode the transmissions from the DUT while the DUT is in tx_mode = SEND_I.

3. Monitor and decode the transmissions from the DUT while the DUT is in tx_mode = SEND_N and

tx_enable = 1.

4. Monitor and decode the transmissions from the DUT while the DUT is in tx_mode = SEND_N and

tx_enable = 0.

5. Configure the DUT as slave and the Link Partner as master.

6. Monitor and decode the transmissions from the DUT while the DUT is in tx_mode = SEND_I.

7. Monitor and decode the transmissions from the DUT while the DUT is in tx_mode = SEND_N and

tx_enable = 1.

8. Monitor and decode the transmissions from the DUT while the DUT is in tx_mode = SEND_N and

tx_enable = 0.

Observable Results:

剩余71页未读，继续阅读

csdnverruckt

粉丝: 0
资源: 22

IEEE100BASE-T1物理编码子层测试套件

OPEN联盟车载以太网测试规范(TC8 ECU test spec).7z

Open Alliance TC8 测试规范工具包

OPEN Alliance TC8测试规范（1/3）

CTIA-Certification_Wi-Fi-Alliance_Test-Plan-for-RF-Perf-Eval-of-Wi-Fi-Mobile-Converged-Devices

spring-aop的jar包哪里下载

spring aop切面编程

drx opendwg

Airplay、DLNA、chromecast

mipi alliance test program d-phy physical layer conformance test suite v1.0

WiFi Multimedia

最新资源