首先,所谓LTSSM,即:Link Training and Status State Machine(链路训练及状态机) 下图为 LTSSM 的状态机及训练过程: LTSSM 包含 11 个顶层状态:Detect、Polling、Configuration、Recovery、L0、L0s、L1、L2、Hot Reset、Loopback 和 Disable。这些状态可以分为 5 类: Link Training states(链路训练状态) Re-Trainin...
LTSSM 包含 11 个顶层状态:Detect、Polling、Configuration、Recovery、L0、L0s、L1、L2、Hot Reset、Loopback和Disable。这些状态可以分为 5 类: Link Training states(链路训练状态) Re-Training(Recovery)state(重训练状态) Software driven Power Management State(由软件控制的电源管理状态) Active-State Power Ma...
有些设备需要在reset结束后在20ms内进入LTSSM Detect阶段 连接的两个设备可能会在不同时间退出reset,此时每个设备都需满足在20ms进入 Link Training阶段 在Link Training快结束时,设备必须能够接收和处理TLPs和DLLPs 对于系统方面: 为了便于设备进入内部初始化,系统软件在被允许向设备提交配置请求前,需要在设备结束复位...
please send me any guide that have description about ltssm states and the what are the compulsory requirements for ltssm states has to go into the POLLING.CONFIG state. Translate 0 Kudos Copy link Reply Altera_Forum Honored Contributor II 06-26-2015 07:00 AM 3,515 ...
LTSSM state: The LTSSM state machine encoding defines the following states: • 00000: Detect.Quiet • 00001: Detect.Active • 00010: Polling.Active • 00011: Polling.Compliance • 00100: Polling.Configuration • 00101: Polling.Speed • 00110: config.Linkwidthstart • 00111: Config....
In PCI Express (PCIe) devices, there is a need for testing near-worst-case inter-symbol interference (ISI) and cross-talk so as to ensure data flow with minimal distortion and noise. To accommodate this in PCIe, we have a separate LTSSM state as polling.compliance state. This phase will...
LTSSM loopback and Error detector with variable CTLE for PCIe Rx testingResources Technical Docs Videos Webinars Document Name QPHY2-PCIE6-TX-RX Datasheet Teledyne LeCroy’s QPHY2-PCIE6-TX-RX automated test framework with unified Tx and Rx testing in one test interface for PCIe 6.0 Bas...
but still the same problem.please tell me how to get rid of it. <P></P> please send me any guide that have description about ltssm states and the what are the compulsory requirements for ltssm states has to go into the POLLING.CONFIG state.</description> <pubDate>Sun, 07 Dec ...
After execution, output log files are analyzed for LTSSM states, link width, PCIe capabilities, packets in packet tracker file, and waveform analysis using Verisium Debug tool. All the tools demonstrated are very effective during debugging.
1. In 7-series pg054 page 25, the LTSSM named pl_ltssm_state, from 0x6 to 0xA is polling.compliance states. It clearly shows compliance pattern is sent in state=0x8.2. In ultrascale pg156 page 32, the LTSSM now named cfg_ltssm_state, 0x03 is polling complinace state. Can I ...