TUSB2077中文资料

Keysight USB 模块化产品和系统快速入门指南说明书

Keysight USB 模块化产品和系统快速入门指南声明© Keysight Technologies, 2008 - 2015根据美国和国际版权法，未经 Keysight Technologies 事先允许和书面同意，不得以任何形式（包括电子存储和检索或翻译为其他国家或地区语言）复制本手册中的任何内容。

手册部件号U2702-90005版本第 4 版，2015 年 1 月Keysight Technologies1400 Fountaingrove ParkwaySanta Rosa, CA 95403 USA商标声明Pentium 是 Intel Corporation 在美国的注册商标。

Microsoft、Visual Studio、Windows 和 MS Windows 是 Microsoft Corporation 在美国和／或其他国家／地区的商标。

保修本文档中包含的材料“按原样”提供，如有更改，恕不另行通知。

此外，在适用法律允许的最大范围内，Keysight 不承诺与本手册及其包含的任何信息相关的任何明示或暗示的保证，包括但不限于对适销性和针对特定用途的适用性的暗示担保。

Keysight 对提供、使用或应用本文档及其包含的任何信息所引起的错误或偶发或间接损失概不负责。

如果 Keysight 和用户另有书面协议，并且其中的某些担保条款涉及了本文档中与这些条款冲突的资料，则以此协议中的担保条款为准。

技术许可本文档中描述的硬件和／或软件，仅在获得许可的情况下提供，并且只能根据许可进行使用或复制。

限制性权限声明美国政府限制性权限。

授予联邦政府的软件和技术数据权限仅包括通常会提供给最终用户的那些权限。

Keysight 在软件和技术数据中提供本定制商业许可时遵循 FAR 12.211（技术数据）和 12.212（计算机软件）以及用于国防的D FARS252.227-7015（技术数据－商业制品）和 DFARS 227.7202-3（商业计算机软件或计算机软件文档中的权限）。

USB2.0协议中文版

USB 2.0 规范USB 体系简介USB 是一种支持热插拔的高速串行传输总线，它使用差分信号来传输数据，最高速度可达480Mb/S。

USB 支持“总线供电”和“自供电”两种供电模式。

在总线供电模式下，设备最多可以获得500mA 的电流。

USB2.0 被设计成为向下兼容的模式，当有全速（USB 1.1）或者低速（USB 1.0）设备连接到高速（USB 2.0）主机时，主机可以通过分离传输来支持它们。

一条USB 总线上，可达到的最高传输速度等级由该总线上最慢的“设备”决定，该设备包括主机、HUB 以及USB 功能设备。

USB 体系包括“主机”、“设备”以及“物理连接”三个部分。

其中主机是一个提供USB 接口及接口管理能力的硬件、软件及固件的复合体，可以是PC，也可以是OTG 设备。

一个USB 系统中仅有一个USB 主机；设备包括USB 功能设备和USB HUB，最多支持127 个设备；物理连接即指的是USB 的传输线。

在USB 2.0 系统中，要求使用屏蔽的双绞线。

一个U S B H O S T最多可以同时支持128个地址，地址0作为默认地址，只在设备枚举期间临时使用，而不能被分配给任何一个设备，因此一个U S B H O S T最多可以同时支持127个地址，如果一个设备只占用一个地址，那么可最多支持127个U S B设备。

在实际的U S B体系中，如果要连接127个U S B 设备，必须要使用U S B H U B，而U S B H U B也是需要占用地址的，所以实际可支持的U S B功能设备的数量将小于127。

USB 体系采用分层的星型拓扑来连接所有USB 设备，如下图所示：以HOST-ROOT HUB Array为起点，最多支持7 层（Tier），也就是说任何一个USB 系统中最多可以允许5个USB HUB 级联。

一个复合设备（Compound Device）将同时占据两层或更多的层。

R OO T H U B是一个特殊的U S B H U B，它集成在主机控制器里，不占用地址。

Seagate LaCie Rugged USB-C 使用手冊说明书

Seagate、Seagate Technology、Wave 標誌和 FreeAgent 均為 Seagate Technology LLC. 或其子公司之一的商標或註冊商標。

其他商標或註冊商標均為其個別擁有者的財產。

意指硬碟機容量時，1 gigabyte 或 GB 等於十億位元組，而 1 terabyte 或 TB 相當於一兆位元組。

此外，列出的某些容量是用於格式化和其他功能，因此並不適用於資料儲存。

各種應用的使用量範例僅供參考。

實際數據將因各種因素不同而有所差異，包括檔案大小、檔案格式、特性和應用軟體。

Seagate 得隨時變更產品供應項目或規格，恕不另行通知。

Seagate Technology LLC47488 Kato RoadFremont, CA 94538USASeagate Technology NL B.V.Koolhovenlaan 11119 NB Schiphol-Rijk荷蘭Seagate Technology NL B.V. (英國分公司)Jubilee House, Globe Park, 3rd Ave,Marlow SL7 1EYUKSeagate Singapore International Headquarters Pte.Ltd.90 Woodlands Avenue 7Singapore 737911按一下此處存取該文件最新線上版本。

您也可以找到最新內容，以及可擴展圖像、簡易導覽和搜尋功能。

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連接 USB 連接線步驟 2 - LaCie Setup Assistant 4使用 iPad USB-C 5格式化和磁碟分割（可選）關於檔案系統格式格式化說明6從電腦上安全地移除 Rugged USB-C Mac Windows 7常見問題所有使用者. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 連接埠. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 作業系統. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 最低可用磁碟空間. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 啟動 LaCie Setup Assistant - Mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 啟動 LaCie Setup Assistant - Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . LaCie Setup Assistant 步驟. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Windows . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 透過 Finder 視窗退出. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 透過桌面退出. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 問題：檔案傳輸速度過慢。

KD-2077_操作手册

本书中出现的其他公司名、产品名均为各公司的注册商标或商标。
目录
・为了确保安全使用本点胶机，作以下说明。
・前言
本手册的概要有关符号本手册的构成
1 装置的概要 ............................................................. 1-1
1-1 本装置的构成 ................................................接通电源前，请确认连接器、电缆类无损伤、脱落、松弛等。 2. 为了防止人身事故，请勿将手放入驱动部。
加油
1. 黄油请使用 JUKI 指定的黄油。 2. 为了防止炎症、斑疹，黄油附着在眼睛里或身体上时，请立即进行清洗。 3. 误食时，为防止腹泻、呕吐，请立即请医生诊断。
3. 为防止意外起动造成事故，请拆下气源管，放出剩余的空气后再进行维护。 4. 为防止人身事故，进行修理调试、零部件更换等作业后，请确认螺钉、螺母等稳固不松弛。
使用环境
1. 为防止因错误操作而引起的事故，请勿在受高频焊机等噪声源（电磁波）影响的环境下使用。
2. 为防止因错误操作而引起的事故，请勿在电源电压超过额定电压±10％的情况下使用。
1）危险程度危险表示在进行机器操作、保养时，如果当事人、第三者操作错误，或不防止该情况，
则有导致死亡或重伤的重大危险。
警告表示在进行机器操作、保养时，如果当事人、第三者操作错误，或不防止该情况，
则有导致死亡或重伤的潜在性危险。
注意表示在进行机器操作、保养时，如果当事人、第三者操作错误，或不防止该情况，
ç 注意事项
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(1) 未经许可,严禁擅自复印、复制本书的部分或全部内容。（包括软件和程序） (2) 本书的内容如有变更、恕不另行通告。 (3) 我们在编写本书内容时，力求准确无误。万一发现有错误、遗漏或可疑之处，请与所购买的

UT-2077光纤MODEM使用说明书.

Hihg-Speed RS-232 Multi-Mode Fiber Optic Modem UT-2077 光纤MODEM使用说明书一、概述UT-2077 是超小型的支持异步RS-232，通信接口的光纤 MODEM, 是连接远程终端单元（RTU）到主机（HOST ）或分布式数据采集系统（SCADA）控制器的最佳选择。

支持 RS-232异步通信协议，UT-2077的RS-232方式支持数据（TXD 或SD）发送控制，从而提高了适应各类软件的能力，也简化了控制方式，光纤MODEM支持异步串行口之间的多种光纤连接方式，通信距离最远可达多模4公里，RS-232信号的传输速率最高为115.2KBPS，不同电气标准的接口可以混合使用，无需外接电源采用独特的 “RS-232电荷泵”驱动，不需要靠初始化RS-232串口可得到电源，内部带有零延时自动收发转换，独有的I/O电路自动控制数据流方向，而不需任何握手信号(如RTS、D T R等)，从而保证了在RS-232半双工方式下编写的程序，并提供了优良的EMI/RFT特性。

UT-2077支持两个数据信号的传输：发送数据和接收数据，RS-232是通过DB9母头连接、光纤的连接通过两个ST 接口，拆卸安装非常方便。

二、性能参数1、支持RS-232/ST接口 2、异步传输：点对点运用，速率达115.200bps 3、传输距离：多模4，000米 4、工作温度：-25℃ 到70℃ ，相对湿度为5%到95% 5、工作波长：850nm(多模）1电气接口： RS-232：采用DB9孔型连接器光纤接口：ST型接口（其它接口可定制） RS-232接口特性：标准RS-232三线接口+/-15KV（防静电） ESD保护，支持速率最高115.2Kbps 无须外加电源，采用串口取电技术。

维阿托 USB HART 接口手册说明书

17-10-30 22:42D a t e o f i s s u e 2017-10-30915548_e n g .x m lConnectionHART ﬁeld deviceModem Power supplyTest clips across HART device Test clips across load resistorLoad resistor 250 ...1100 Ohm PC or handheld•HART compliant for communication with any HART field device and error-free slave testing•Draws power from USB port, needs no external supply to power modem•Compact, rugged polycarbonate housing for industrial-grade reliability•USB 1.1 compliant•Integrated connector cable terminates in 2 test clips and 1 USB connector cable•Polarity insensitive test clips•Compatible with 32- and 64-bit Windows® 7, 8, XP, 10, or VistaApplicationThe Viator® USB HART Interface provides a flexible PC communication link to HART networks. It is used to commission, service, calibrate, and acquire data from any HART field device or transmitter. The interface is compact and rugged for field use.Features17-10-30 22:42D a t e o f i s s u e 2017-10-30915548_e n g .x mlSupplyInput current30 mA at 5 V Power supplyPowered by USB port , No external power required InterfaceInterface typeUSB port OutputSignal0.5 ± 0.1 Vpp trapezoidal wave at 1200/2200 Hz, 24 VDC at 40 mA to device Galvanic isolationOutput/interface1500 V DC Directive conformityElectromagnetic compatibilityDirective 2014/30/EUEN 61326-1:2013RoHSDirective 2011/65/EU (RoHS)EN 50581:2012Ambient conditionsOperating temperature-20 ... 50 °C (-4 ... 122 °F)Storage temperature-20 ... 60 °C (-4 ... 140 °F)Relative humidity0 ... 95 % non-condensing Mechanical specificationsDegree of protectionIP20ConnectionUSB (type A) Connector , red and black test clips Material PolycarbonateDimensions75 mm x 33 mm x 15 mm Cable length1.8 m 2-strand wire terminating in 2 test clips , 15.2 cm cable terminating in 1 USB type A connector General informationSupplementary information Observe the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see .AccessoriesPACTware 4.1FDT FrameworkDTM Generic HART。

tusb1210中文规格书

tusb1210中文规格书TUSB1210中文规格书TUSB1210是一款具有USB到串行总线转换功能的集成电路芯片。

它能够实现USB与串行总线之间的高速数据传输和通信。

本文将对TUSB1210的功能特性、电气特性和应用领域进行详细介绍。

一、功能特性TUSB1210支持USB 2.0规范，具有以下功能特性：1. USB接口：TUSB1210采用了USB2.0接口标准，支持高速（480 Mbps）、全速（12 Mbps）和低速（1.5 Mbps）三种传输速率。

2. 串行总线接口：TUSB1210具备了可编程的串行总线接口，支持SPI（Serial Peripheral Interface）和I2C（Inter-Integrated Circuit）两种通信协议。

3. 集成电源管理：TUSB1210内部集成了电源管理电路，可通过软件配置实现低功耗模式和待机模式，有效延长电池寿命。

4. 多通道支持：TUSB1210具备多个通道，可以同时连接多个外设设备，实现多通道数据传输。

5. 热插拔支持：TUSB1210支持热插拔功能，用户可以在系统运行时插拔USB设备，无需重启系统。

二、电气特性TUSB1210具有以下电气特性：1. 工作电压：TUSB1210的工作电压范围为3.3V至5.5V，适用于各种电源供应系统。

2. 工作温度：TUSB1210的工作温度范围为-40℃至85℃，适用于工业级应用。

3. ESD保护：TUSB1210内部集成了ESD（Electrostatic Discharge）保护电路，能够有效抵御静电击穿，提高芯片的可靠性和稳定性。

4. 引脚配置：TUSB1210的引脚配置灵活多样，可根据不同的应用需求进行定制。

5. 低功耗设计：TUSB1210采用了低功耗设计，工作时的功耗较低，适合于移动设备和便携式电子产品。

三、应用领域TUSB1210广泛应用于各种USB接口和串行总线接口的设备和系统中，包括但不限于以下领域：1. 个人电脑：TUSB1210可用于连接USB设备，如USB鼠标、USB键盘、USB摄像头等，实现与计算机的数据交互。

MACH3 USB 口 4 轴控制驱动一体板 USB8727T4 产品说明书

产品说明书MACH3 USB口4轴控制驱动一体板USB8727T4MNV8727T4V4产品说明书Contect..........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................01第一章概述1.1 产品简介飞斯特数控专注数控行业7年，专门从事于多种高质量，高可靠性CNC 数控系统的研究、开发和生产工作。

海尔冰箱用户手册说明书

Seagate FireCuda 游戏扩展坞用户手册单击这里以访问本文档的最新在线版本。

您还将找到最新的内容，以及可扩展的说明、更轻松的导航和搜索功能。

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Contents1欢迎使用包装内容最低系统要求视图2使用入门连接电源连接到计算机设置 FireCuda 游戏扩展坞3使用 Toolkit 自定义 RGB 以及更多内容自定义 RGB 颜色设置启动备份计划（仅限 Windows ）设置镜像文件夹4格式化和分区（可选）选择文件系统格式格式化说明5从您的计算机安全移除设备Windows Mac 6常见问题解答. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 端口. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 操作系统. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 最低可用磁盘空间：. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 前面. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 上一步. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 在这里开始. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 注册您的设备. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 下载 Toolkit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 安装 Toolkit . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 同时兼容 Windows 和 Mac . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 针对 Windows 优化性能. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 针对 macOS 优化性能. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 了解更多. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 通过 Finder 窗口退出. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 通过桌面退出444444445667889991111111112121212121313141414141415. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .所有用户Windows Mac 7Regulatory Compliance China RoHS Taiwan RoHS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 问题：我的文件传输速度很慢. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 问题：我的计算机只有 USB-C 端口. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 问题：我必须对 USB 设备使用 USB 集线器. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 问题：提供的 USB 电缆太短. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 问题：我收到了文件传输错误消息. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 问题：计算机中未显示硬盘图标. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 问题：我的桌面上未显示硬盘图标15151515161616161717181818欢迎使用包装内容®®Seagate FireCuda游戏扩展坞电源适配器USB 3.0 电缆（USB micro-B 转 USB-A）快速入门指南最低系统要求端口您可以使用 USB-A（USB 3.0 或 USB 2.0）端口将 Seagate 设备连接到计算机。

Micrel MIC2027 2077四通道USB电源分布管理电路说明书

MIC2027/2077Quad USB Power Distribution SwitchMicrel Inc. • 2180 Fortune Drive • San Jose, CA 95131 • USA • tel +1 (408) 944-0800 • fax + 1 (408) 474-1000 • General DescriptionThe MIC2027 and MIC2077 are quad high-side MOSFET switches optimized for general-purpose power distribution requiring circuit protection. The MIC2027/77 are internally current limited and have thermal shutdown that protects the device and load.The MIC2077 offers “smart” thermal shutdown that reduces current consumption in fault modes. When a thermal shutdown fault occurs, the output is latched off until the faulty load is removed. Removing the load or toggling the enable input will reset the device output.Both devices employ soft-start circuitry that minimizes inrush current in applications where highly capacitive loads are employed.A fault status output flag is asserted during overcurrent and thermal shutdown conditions. Transient current limit faults are internally filtered.The MIC2027/77 are available in 16-pin narrow (150 mil) and wide (300 mil) SOIC packages.Data sheets and support documentation can be found on Micrel’s web site at .Features• 150m Ω maximum on-resistance per channel • 2.7V to 5.5V operating range• 500mA minimum continuous current per channel • Short-circuit protection with thermal shutdown • Thermally isolated channels• Fault status flag with 3ms filter eliminates false assertions • Undervoltage lockout• Reverse current flow blocking (no “body diode”) • Circuit breaker mode (MIC2077) reduces power consumption• Logic-compatible inputs • Soft-start circuit• Low quiescent current• Pin compatible with MIC2524 and MIC2527Applications• USB peripherals• General purpose power switching • ACPI power distribution • Notebook PCs • PDAs• PC card hot swapTypical Application®UL Recognized ComponentOrdering Information(1)Part NumberStandard Pb-Free Enable TemperatureRange Package MIC2027-1BWM MIC2027-1YWM Active High –40°C to +85°C 16-Pin Wide SOIC MIC2027-1BM MIC2027-1YM Active High –40°C to +85°C 16-Pin SOICMIC2027-2BWM MIC2027-2YWM Active Low –40°C to +85°C 16-Pin Wide SOIC MIC2027-2BM MIC2027-2YM Active Low –40°C to +85°C 16-Pin SOICMIC2077-1BWM MIC2077-1YWM Active High –40°C to +85°C 16-Pin Wide SOIC MIC2077-1BM MIC2077-1YM Active High –40°C to +85°C 16-Pin SOICMIC2077-2BWM MIC2077-2YWM Active Low –40°C to +85°C 16-Pin Wide SOICMIC2077-2BM MIC2077-2YM Active Low –40°C to +85°C16-Pin SOICPin Configuration16-Pin SOIC (M)16-Pin Wide SOIC (WM)Functional PinoutPin DescriptionPin Number Pin Name Pin FunctionFault Flag A (Output): Active-low, open-drain output. Low indicates overcurrent or thermal1 FLGshutdown conditions. Overcurrent conditions must last longer than t D to assert flag.2 ENA Switch A Enable (Input): Logic-compatible enable input. Active high (-1) or active low (-2).3 OUTA Switch A Output4, 12 GND Ground5 IN(C/D) Input: Channel C and D switch and logic supply input.6 OUTC Switch C Output7 ENC Switch C Enable (Input)8 FLGC Fault Flag C (Output)9 FLGD Fault Flag D (Output)10 END Switch D Enable (Input)11 OUTD Switch D Output13 IN(A/B) Supply Input: Channel A and B switch and logic supply input.14 OUTB Switch B Output15 ENB Switch B Enable (Input)16 FLGB Fault Flag B (Output)Absolute Maximum Ratings(1)Supply Voltage (V IN)............................................–0.3V +6V Fault Flag Voltage (V FLG)................................................+6V Fault Flag Current (I FLG)..............................................25mA Output Voltage (V OUT)....................................................+6V Output Current (I OUT).................................Internally Limited Enable Input (I EN)..........................................–0.3V V IN +3V Lead Temperature (soldering, 5sec.).........................260°C Storage Temperature (T S).........................–65°C to +150°C EDS Rating(3)..................................................................1kV Operating Ratings(2)Supply voltage (V IN).....................................+2.7V to +5.5V Ambient Temperature (T A)..........................–40°C to +85°C Junction Thermal Range(T J).....................Internally Limited Thermal Resistance[300 mil] Wide SOIC (θJA)................................120°C/W [150 mil] SOIC (θJA).........................................112°C/W DIP(θJA)..........................................................130°C/WElectrical CharacteristicsV IN = +5V; T A = 25°C, bold values indicate –40°C< T A < +85°C, unless noted.Symbol Parameter Condition Min Typ Max UnitsMIC20x7-1, V ENA–D≤ 0.8V(switch off), OUT = open1.5 10 µAMIC20x7-2, V ENA–D≥ 2.4V(switch off), OUT = open1.5 10 µAMIC20x7-1, V ENA–D≥ 2.4V (switch on), OUT = open 200 320 µAI DD SupplyCurrentMIC20x7-2, V ENA–D≤ 0.8V(switch on), OUT = open200 320 µAlow-to-high transition 1.7 2.4 V Enable Input Thresholdhigh-to-low transition 0.8 1.45 V V ENEnable Input Hysteresis 250 mV Enable Input Current V EN = 0V to 5.5V –1 0.01 1 µAI ENEnable Input Capacitance 1 pFV IN = 5V, I OUT = 500mA 100 150 mΩR DS(on) SwitchResistanceV IN = 3.3V, I OUT = 500mA 110 180 mΩOutput Leakage Current MIC20x7-1, V ENx≤ 0.8V;MIC20x7-2, V ENx≥ 2.4V, (output off)10 µAOutput Current inLatched Thermal Shutdown MIC2077 (per Latch Output)(during thermal shutdown state)50 µAt ON Output Turn-On Delay RL = 10Ω, CL = 1µF, see “Timing Diagrams” 1.3 5 mst R Output Turn-On Rise Time RL = 10Ω, CL = 1µF, see “Timing Diagrams” 1.15 4.9 mst OFF Output Turnoff Delay RL = 10Ω, CL = 1µF, see “Timing Diagrams” 35 100 µst F Output Turnoff Fall Time RL = 10Ω, CL = 1µF, see “Timing Diagrams” 32 100 µsI LIMIT Short-Circuit Output Current V OUT = 0V, enabled into short-circuit 0.5 0.9 1.25 ACurrent-Limit Threshold ramped load applied to output 1.0 1.25 AShort-Circuit Response Time V OUT = 0V to I OUT = I LIMIT(short applied to output)20 µsV IN = 5V, apply V OUT = 0V until FLG low 1.5 3 7 mst D Overcurrent Flag ResponseDelay VIN= 3.3V, apply V OUT = 0V until FLG low 3 msSymbol Parameter Condition Min Typ Max UnitsV IN rising 2.2 2.4 2.7 V Undervoltage LockoutThreshold VINfalling 2.0 2.15 2.5 VI L = 10mA, V IN = 5V 10 25 ΩError Flag Output ResistanceI L = 10mA, V IN = 3.3V 15 40 ΩError Flag Off Current V FLAG = 5V 10 µAOvertemperature Threshold Note 4T J increasing, each switchT J decreasing, each switch140120°C°C T J increasing, both switchesT J decreasing, both switches160150°C°CNotes:1. Exceeding the absolute maximum rating may damage the device.2. The device is not guaranteed to function outside its operating rating.3. Devices are ESD sensitive. Handling precautions recommended. Human body model, 1.5k in series with 100pF.4. If there is an output current limit fault on one channel, that channel will shut down when the die reaches approximately 140°C. If the diereaches approximately 160°C, the other channel driven by the same input will shut down, even if neither channel is in current limit.Test CircuitTiming DiagramsOutput Rise and Fall TimesActive-Low Switch Delay Times (MIC20x7-2)Active-High Switch Delay Times (MIC20x7-1)Typical CharacteristicsTypical Characteristics (cont.)Functional CharacteristicsFunctional Characteristics (cont.)Functional Characteristics (cont.)Block DiagramFunctional DescriptionInput and OutputIN is the power supply connection to the logic circuitry and the drain of the output MOSFET. OUT is the source of the output MOSFET. In a typical circuit, current flows from IN to OUT toward the load. If V OUT is greater than V IN, current will flow from OUT to IN, since the switch is bidirectional when enabled. The output MOSFET and driver circuitry are also designed to allow the MOSFET source to be externally forced to a higher voltage than the drain (V OUT > V IN) when the switch is disabled. In this situation, the MIC2027/77 prevents undesirable current flow from OUT to IN.Thermal ShutdownThermal shutdown is employed to protect the device from damage should the die temperature exceed safe margins due mainly to short circuit faults. Each channel employs its own thermal sensor. Thermal shutdown shuts off the output MOSFET and asserts the FLG output if the die temperature reaches 140°C and the overheated channel is in current limit. The other channels are not affected. If however, the die temperature exceeds 160°C, all channels will be shut off. Upon determining a thermal shutdown condition, the MIC2077 will latch the output off and activate a pull-up current source. When the load is removed, this current source will pull the output up and reset the latch. Toggling EN will also reset the latch.The MIC2027 will automatically reset its output when the die temperature cools down to 120°C. The MIC2027 output and FLG signal will continue to cycle on and off until the device is disabled or the fault is removed. Figure 2 depicts typical timing.Depending on PCB layout, package, ambient temperature, etc., it may take several hundred milliseconds from the incidence of the fault to the output MOSFET being shut off. This time will be shortest in the case of a dead short on the output.Power DissipationThe device’s junction temperature depends on several factors such as the load, PCB layout, ambient temperature and package type. Equations that can be used to calculate power dissipation of each channel and junction temperature are found below.P D = R DS(on) × I OUT2Total power dissipation of the device will be the summation of P D for all channels. To relate this to junction temperature, the following equation can be used:T J = P D × θJA + T A where:T J = junction temperatureT A = ambient temperatureθJA = is the thermal resistance of the packageCurrent Sensing and LimitingThe current-limit threshold is preset internally. The preset level prevents damage to the device and external load but still allows a minimum current of 500mA to be delivered to the load.The current-limit circuit senses a portion of the output MOSFET switch current. The current-sense resistor shown in the block diagram is virtual and has no voltage drop. The reaction to an overcurrent condition varies with three scenarios:Switch Enabled into Short-CircuitIf a switch is enabled into a heavy load or short-circuit, the switch immediately enters into a constant-current mode, limiting the output voltage. The FLG signal is asserted indicating an overcurrent condition.Short-Circuit Applied to Enabled OutputWhen a heavy load or short-circuit is applied to an enabled switch, a large transient current may flow until the current-limit circuitry responds. Once this occurs the device limits current to less than the short-circuit current limit specification.Current-Limit Response—Ramped LoadThe MIC2027/77 current-limit profile exhibits a small fold-back effect of about 100mA. Once this current-limit threshold is exceeded the device switches into a constant current mode. It is important to note that the device will supply current up to the current-limit threshold.Fault FlagThe FLG signal is an N-channel open-drain MOSFET output. FLG is asserted (active-low) when either an overcurrent or thermal shutdown condition occurs. In the case of an overcurrent condition, FLG will be asserted only after the flag response delay time, t D, has elapsed. This ensures that FLG is asserted only upon valid overcurrent conditions and that erroneous error reporting is eliminated. For example, false overcurrent conditions can occur during hot-plug events when a highly capacitive load is connected and causes a high transient inrush current that exceeds the current-limit thresh-old. The FLG response delay time t D is typically 3ms. Undervoltage LockoutUndervoltage lockout (UVLO) prevents the output MOSFET from turning on until V IN exceeds approx-imately 2.5V. Undervoltage detection functions only when the switch is enabled.Figure 1. MIC2077-2 Fault Timing: Output Reset by Removing LoadVV I V I IFigure 2. MIC2207-2 Fault TimingApplication InformationSupply FilteringA 0.1µF to 1µF bypass capacitor positioned close to V IN and GND of the device is strongly recommended to control supply transients. Without a bypass capacitor, an output short may cause sufficient ringing on the input (from supply lead inductance) to damage internal control circuitry.Printed Circuit Board Hot-PlugThe MIC2027/77 are ideal inrush current-limiters for hot-plug applications. Due to the integrated charge pump, the MIC2027/77 present a high impedance when off and slowly becomes a low impedance as it turns on. This “soft-start” feature effectively isolates power supplies from highly capacitive loads by reducing inrush current.In cases of extremely large capacitive loads (>400µF), the length of the transient due to inrush current may exceed the delay provided by the integrated filter. Since this inrush current exceeds the current-limit flag delay specification, FLG will be asserted during this time. To prevent the logic controller from responding to FLG being asserted, an external RC filter, as shown in Figure 3, can be used to filter out transient FLG assertion. The value of the RC time constant should be selected to match the length of the transient, less t D(min) of the MIC2027/77.Universal Serial Bus (USB) Power DistributionThe MIC2027/77 is ideally suited for USB (Universal Serial Bus) power distribution applications. The USB specification defines power distribution for USB host systems such as PCs and USB hubs. Hubs can either be self-powered or bus-powered (that is, powered from the bus). The requirement for USB self-powered hubs is that the port must supply a minimum of 500mA at an output voltage of 5V ±5%. In addition, the output power delivered must be limited to below 25VA. Upon an overcurrent condition, the host must also be notified. To support hot-plug events, the hub must have a minimum of 120µF of bulk capacitance, preferably low ESR electrolytic or tantulum. Please refer to Application Note 17 for more details on designing compliant USB hub and host systems.Figure 3. Transient FilterPackage Information16-Pin SOIC (M)16-Pin Wide SOIC (WM)。

七彩虹 C.N720T V17主板中文说明书

C.N720T V17C.N720T V17目录目录 (ii)第一章简介 (1)第二章硬件安装 (8)第三章驱动程序安装说明 (24)第四章BIOS设置 (26)4-1进入BIOS主界面 (26)4-2 BIOS主界面 (29)4-3标准CMOS设定 (Standard CMOS Features) (29)4-4高级BIOS设置 (Advanced BIOS Features) (33)4-5高级芯片组特征 (Advanced Chipset features) (38)4-6集成的外部设备 (Integrated Peripherals) (43)4-7电源管理设定 (Power Management Setup) (48)4-8 PnP/PCI配置 (PnP/PCI Configurations) (51)4-9 七彩虹魔法控制 (Colorful Magic Control) (54)4-10载入默认安全/优化值Load Failsafe/Optimized Defaults (56)4-11设定管理员/用户密码Set User/Supervisor password (56)4-12退出设置程序并储存设置Save & Exit Setup (57)4-13退出设置程序不储存设置Exit Without Saving (57)第五章附录 (58)根据中华人民共和国信息产业部发布的《电子信息产品污染控制管理办法》所展开的 SJ/T11364-2006 标准要求，本产品污染控制标识以及有毒有害物质或元素标识说明如下：产品有毒有害物质或元素标识：产品中有毒有害物质或元素的名称及含量有毒有害物质或元素部件名称铅(Pb) 汞(Hg) 镉(Cd) 六价铬(Cr(VI)) 多溴联苯(PBB)多溴二苯醚(PBDE)PCB板 × ○ ○ ○ ○ ○结构件 ○ ○ ○ ○ ○ ○芯片 ○ ○ ○ ○ ○ ○连接器 ○ ○ ○ ○ ○ ○被动电子元器件 ○ ○ ○ ○ ○ ○焊接金属 ○ ○ ○ ○ ○ ○线材 × ○ ○ ○ ○ ○助焊剂,散热膏,标签以及其他耗材○ ○ ○ ○ ○ ○○：表示该有毒有害物质在该部件所有均质材料中的含量均在SJ/T11363-2006标准规定的限量要求以下。

USB产品简介范文

USB产品简介范文
USB，英文全称为Universal Serial Bus，中文为通用串行总线，它
是目前世界上最流行的串行总线技术标准，被广泛用于商业及家庭计算机，它可以同时连接多个设备，提供设备间的低速（12Mbps）数据传输，是个
总线，无论何种设备，只要它们都使用USB接口，就可以在一条USB线上
很容易地连接起来。

USB的优势在于它的便捷性、快速性和灵活性，它提供了一种简单的、快速的、开放的数据通信标准，消除了不同设备之间无法接入的瓶颈，可
以让多种设备及外接设备与主机连接起来，进而形成局域网络，使数据传
输变得更容易、更快速、更灵活。

USB的功能十分强大，除了可以用来进行数据传输外，还可以用来提
供其他的功能，比如可以用USB技术来更新设备的固件，可以用于安全技术，用来保护设备的数据安全，还可以用USB来充电手机、MP3等移动设备，满足一体化的多功能需求。

此外，USB还有一个很重要的功能，就是通过它可以与其它设备实现
充电，与快速充电相比，USB的优势在于它可以同时与多个设备连接进行
充电，而且具有兼容性强的特点。

USB可以满足用户的多种需求，它既可以用于数据传输，也可以用来
实现设备的充电，可以说它是现代数据传输和充电的“利器”，也。

Transcend USB2.0 JetFlash 中文说明书

JetFlash™ 中文使用手冊( Version 1.0 )目錄產品介紹 (2)包裝內容 (2)產品特色 (2)系統需求 (2)安裝驅動程式 (3)在Windows 98SE (第二版)下安裝驅動程式 (3)在Windows Me、2000及XP下安裝驅動程式 (3)在Mac OS 9.0或之後的版本下安裝驅動程式 (3)在Linux Kernel 2.4.2或之後的版本下安裝驅動程式 (3)磁碟分割及加密功能 (4)磁碟分割區型式 (4)在保密資料區存取資料 (6)登出保密資料區 (7)更改密碼 (7)當您忘記密碼 (9)電腦鎖功能 (9)在Windows 98SE (第二版)、Me、2000及XP下使用電腦鎖功能 (9)鎖定電腦 (10)解除鎖定 (10)開機功能 (10)執行開機功能之系統需求 (11)在Windows 98SE (第二版)及Me下啟動開機功能 (11)在Windows XP下啟動開機功能 (12)移除mFormat (15)如何安全地移除JetFlash (15)在Windows 98SE (第二版)下移除JetFlash (15)在Windows Me、2000及XP下移除JetFlash (15)在Mac OS下移除JetFlash (16)在Linux OS下移除JetFlash (16)疑難排解 (17)產品介紹感謝您選購創見資訊所生產製造的JetFlash™系列行動碟，本產品能讓您更方便且快速地在儲存媒體和電腦系統間存取及傳輸大量資料。

相較於傳統儲存裝置，Jet Flash 提供消費者更高的容量、更長的資料保存時間及更快的傳輸速率，其功能將足以取代軟碟機或硬碟機。

另外，它的可攜性、優越的資料保存能力及時尚的外型設計將帶給您截然不同的全新感受。

包裝內容本產品之包裝盒內含有下列物品：• JetFlash• 頸繩• 驅動程式光碟• 快速安裝說明產品特色• 完全相容於USB2.0規格。

2077阅读文档

2077阅读文档窿信TLM2077蔽晶膨宅说瞬苻UOC3+GM5221液晶电视原理厦维修简要说明——LCD2003EU几IM1588几IM2077一、方案概述本机采用LG-PHIUPS公司的20.1英寸高亮度、高对比度、宽视角电视专用液晶屏。

图像处理部分由GENESISO司的嵌入式芯片GM5221（其中包括CPU、A/D转换、SCALER、DEINTERLACEgB~l），PHIUPS的模拟解码，图文，丽音处理芯片UOC3，威者8旭光的频率合成式高频头TDQ-6FT/W124H等组成。

二、原理说明（参照电路图）（_一）、电源部分本机工作时有12V、5v、3.3V、1.8V、33V等多组电压。

(1) 12 V；吩由内置电源直接供给直流12V，由于内置电源是作为一个部件采购，这里就不在详细描进其工作原理。

本机需要1 2V供电的部分有：伴音功放N601值￥码桓TDA1517P)、耳机功放N600僻码板TDA2822M)、逆变器(INVERTER)、升压模埭N401值￥码桓BA6161N)。

(2)5V言眵-J ~‘，‘--9F'1J由内置电源直接供给直流12V，由于内置电源是作为一个部件采购，这里就不在详细描述其工作原理。

本机需要1 2V供电的部分有：伴音功放N601确；码板TDA1517P)、耳机功放N6000码板TDA2822M)、逆变器(INVERTER)、升压模堍N401cj驿码板BA6161N)。

(2)5VgB3-J本机由集成电踣U9(主板LM2576-5.0)及其外围电路构成了一个降压型开关电源。

通过这个开关电源，将12V流电压变为5v滴电压为整机供电。

在这个电路中，U9相当于一个起开关作用的功率晶体管，L10000yH)为储箭电感，D3 11N5822）为！龚滴-极管，由于工作于开关方式，使其输出负载电渍大(3．oA)，电浦{{换裁率高（玎%泼热量小，可以采用铜箔散热的方式。

同时，本电路还具有输出限流，厦在故障状况下提供完全保护的热关断功哉。

CY2077SC-XXX资料

CY2077High-accuracy EPROM ProgrammableSingle-PLL Clock GeneratorFeatures■High-accuracy PLL with 12-bit multiplier and 10-bit divider■EPROM programmability ■3.3V or 5V operation ■Operating frequency❐390 kHz–133 MHz at 5V ❐390 kHz–100 MHz at 3.3V■Reference input from either a 10–30 MHz fundamental toned crystal or a 1–75 MHz external clock■EPROM selectable TTL or CMOS duty cycle levels ■Sixteen selectable post-divide options, using either PLL or reference oscillator/external clock■Programmable PWR_DWN or OE pin, with asynchronous or synchronous modes ■Low jitter outputs typically ❐80 ps at 3.3V/5V■Controlled rise and fall times and output slew rate■Available in both commercial and industrial temperature ranges ■Factory programmable device optionsBenefits■Enables synthesis of highly accurate and stable output clock frequencies with zero PPM■Enables quick turnaround of custom frequencies ■Supports industry standard design platforms■Services most PC, networking, and consumer applications ■Lowers cost of oscillator as PLL can be programmed to a high frequency using either a low-frequency, low-cost crystal, or an existing system clock■Duty cycle centered at 1.5V or V DD /2■Provides flexibility to service most TTL or CMOS applications ■Provides flexibility in output configurations and testing ■Enables low-power operation or output enable function and flexibility for system applications, through selectable instanta-neous or synchronous change in outputs■Suitable for most PC, consumer, and networking applications ■Has lower EMI than oscillators ■Suitable to fit most applications ■Easy customization and fast turnaroundO s c i l l a t o rXTALINPWR_DWNConfiguration C r y s t a l CLKOUT/ 1, 2, 4, 8, 16, 32, 64, 128or OEMUXHIGH ACCURACYPLLEPROMQ 10 bitsP12 bitsP h a s e D e t e c t o rCharge PumpVCO orexternal clockNote1.When using an external clock source, leave XTALOUT floating.XTALOUT[1]Logic Block DiagramPin ConfigurationFigure 1. Pin Diagram - 8 Pin Top View Functional DescriptionCY2077 is an EPROM-programmable, high-accuracy,general-purpose, PLL-based design for use in applications such as modems, disk drives, CD-ROM drives, video CD players,DVD players, games, set-top boxes, and data/telecommunica-tions.CY2077 can generate a clock output up to 133 MHz at 5V or 100MHz at 3.3V. It has been designed to give the customer a very accurate and stable clock frequency with little to zero PPM error.CY2077 contains a 12-bit feedback counter divider and 10-bit reference counter divider to obtain a very high resolution to meet the needs of stringent design specifications. Furthermore, there are eight output divide options of /1, /2, /4, /8, /16, /32, /64, and /128. The output divider can select between the PLL and crystal oscillator output/external clock, providing a total of 16 different options to add more flexibility in designs. TTL or CMOS duty cycles can be selected.Power management with the CY2077 is also very flexible. The user can choose either a PWR_DWN, or an OE feature with which both have integrated pull up resistors. PWR_DWN and OE signals can be programmed to have asynchronous and synchronous timing with respect to the output signal. There is a weak pull down on the output that pulls CLKOUT LOW when either the PWR_DWN or OE signal is active. This weak pull down can easily be overridden by another clock signal in designs where multiple clock signals share a signal path.Multiple options for output selection, better power distribution layout, and controlled rise and fall times enable the CY2077 to be used in applications that require low jitter and accurate reference frequencies.EPROM Configuration BlockTable 2. EPROM Adjustable FeaturesPLL Output FrequencyCY2077 contains a high-resolution PLL with 12-bit multiplier and 10-bit divider.[2] The output frequency of the PLL is determined by the following formula:where P is the feedback counter value and Q is the reference counter value. P and Q are EPROM programmable values. The calculation of P and Q values for a given PLL output frequency is handled by the CyberClocks ™ software. Refer to ““Programming Procedures” on page 12” for details.12345876V DDXTALOUT XTALIN PD/OEV SS CLKOUT V SS V SSTable 1. Pin Definition - 8 PinPin Name Pin #Pin DescriptionV DD 1Voltage supplyV SS 5,6,7Ground (all the pins must be grounded)X D 2Crystal output (leave this pin floating when external reference is used)X G3Crystal input or external input referencePWR_DWN / OE 4EPROM programmable power down or output enable pin. Weak pull up CLKOUT8Clock output. Weak pull downEPROM Adjustable FeaturesAdjust Freq.Feedback counter value (P)Reference counter value (Q)Output divider selectionDuty cycle levels (TTL or CMOS)Power management mode (OE or PWR_DWN)Power management timing (synchronous or asynchronous)F PLL 2P 5+()•Q 2+()---------------------------F REF•=Note2.When using CyClocks, note that the PLL frequency range is from 50 MHz to 250 MHz for 5V V DD supply, and 50 MHz to 180 MHz for 3V V DD supply. The outputfrequency is determined by the selected output divider.Power Management FeaturesPWR_DWN and OE options are configurable by EPROM programming for the CY2077. In PWR_DWN mode, all active circuits are powered down when the control pin is set LOW.When the control pin is set back HIGH, both the PLL and oscil-lator circuit must relock. In the case of OE, the output is three-stated and weakly pulled down when the control pin is set LOW. The oscillator and PLL are still active in this state, which leads to a quick clock output return when the control pin is set back HIGH.Additionally, PWR_DWN and OE can be configured to occur asynchronously or synchronously with respect to CLKOUT. In asynchronous mode, PWR_DWN or OE disables CLKOUT immediately (allowing for logic delays), without respect to the current state of CLKOUT. Synchronous mode prevents output glitches by waiting for the next falling edge of CLKOUT after PWR_DWN, or OE becomes asserted. In either asynchronous or synchronous setting, the output is always enabled synchro-nously by waiting for the next falling edge of CLKOUT.Absolute Maximum RatingsExceeding maximum ratings may shorten the useful life of the device. User guidelines are not tested.Supply voltage..................................................–0.5 to +7.0VInput voltage...........................................–0.5V to V DD +0.5V Storage temperature (non-condensing)......–55°C to +150°C Junction temperature.................................................. 150°C Static discharge voltage........................................... > 2000V (per MIL-STD-883, method 3015)Operating Conditions for Commercial Temperature DeviceTable 3. Device Functionality: Output Frequencies Symbol DescriptionCondition Min Max Unit FoOutput frequencyV DD = 4.5–5.5V 0.39133MHz V DD = 3.0–3.6V0.39100MHzParameter Description Min Max Unit V DD Supply voltage3.0 5.5V T AOperating temperature, ambient 0+70°C C TTLMax. capacitive load on outputs for TTL levels V DD = 4.5 – 5.5V, output frequency = 1 – 40 MHz V DD = 4.5 – 5.5V, output frequency = 40 – 125 MHz V DD = 4.5 – 5.5V, output frequency = 125 – 133 MHz 502515pF pF pFC CMOSMax. capacitive load on outputs for CMOS levelsV DD = 4.5 – 5.5V, output frequency = 1 – 40 MHz V DD = 4.5 – 5.5V, output frequency = 40 – 125 MHz V DD = 4.5 – 5.5V, output frequency = 125 – 133 MHz V DD = 3.0 – 3.6V, output frequency = 1 – 40 MHz V DD = 3.0 – 3.6V, output frequency = 40 – 100 MHz5025153015pF pF pF pF pF X REF Reference frequency, input crystal with C load = 10 pF 1030MHz Reference frequency, external clock source175MHz t PUPower up time for all VDD's to reach minimum specified voltage (power ramps must be monotonic)0.0550msElectrical CharacteristicsT A=0°C to +70°CParameter Description Test Conditions Min Typ Max UnitV IL Low-level input voltage V DD = 4.5 – 5.5VV DD = 3.0 – 3.6V0.80.2V DDVVV IH High-level input voltage V DD = 4.5 – 5.5VV DD = 3.0 – 3.6V2.00.7V DDVVV OL Low-level output voltage V DD = 4.5 – 5.5V, I OL= 16 mAV DD = 3.0 – 3.6V, I OL= 8 mA 0.40.4VVV OHCMOS High-level output voltageCMOS levels V DD = 4.5 – 5.5V, I OH= –16 mAV DD = 3.0 – 3.6V, I OH= –8 mAV DD – 0.4V DD – 0.4VVV OHTTL High-level output voltageTTL levelsV DD = 4.5 – 5.5V, I OH= –8 mA 2.4V I IL Input low current V IN = 0V10μA I IH Input high current V IN = V DD 5μAI DD Power supply currentUnloaded V DD = 4.5 – 5.5V, output frequency <= 133 MHzV DD = 3.0 – 3.6V, output frequency <= 100 MHz4525mAmAI DDS[3]Stand-by current(PD = 0)V DD = 4.5 – 5.5VV DD = 3.0 – 3.6V251010050μAR UP Input pull up resistor V DD = 4.5 – 5.5V, V IN = 0VV DD = 4.5 – 5.5V, V IN = 0.7V DD 1.1503.01008.0200MΩkΩI OE_CLKOUT CLKOUT pull down current V DD = 5.020μA Note3.If external reference is used, it is required to stop the reference (set reference to LOW) during power down.Output Clock Switching Characteristics CommercialOver the Operating Range[4]Parameter Description Test Conditions Min Typ Max Unitt1w Output duty cycle at 1.4V,V DD = 4.5 – 5.5Vt1w = t1A÷ t1B 1 – 40 MHz, C L <= 50 pF40 – 125 MHz, C L <= 25 pF125 – 133 MHz, C L <= 15 pF454545555555%%%t1x Output duty cycle at V DD/2,V DD = 4.5 – 5.5Vt1x = t1A÷ t1B 1 – 40 MHz, C L <= 50 pF40 – 125 MHz, C L <= 25 pF125 – 133 MHz, C L <= 15 pF454545555555%%%t1y Output duty cycle at V DD/2,V DD = 3.0 – 3.6Vt1y = t1A÷ t1B 1 – 40 MHz, C L <= 30 pF40 – 100 MHz, C L <= 15 pF45405560%%t2Output clock rise time Between 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 50 pFBetween 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 25 pFBetween 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 15 pFBetween 0.2V DD – 0.8V DD, V DD= 4.5V – 5.5V, C L = 50 pFBetween 0.2V DD – 0.8V DD, V DD= 3.0V – 3.6V, C L = 30 pFBetween 0.2V DD – 0.8V DD, V DD= 3.0V – 3.6V, C L = 15 pF 1.81.20.93.44.02.4nsnsnsnsnsnst3Output clock fall time Between 0.8V –2.0V, V DD = 4.5V – 5.5V, C L = 50 pFBetween 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 25 pFBetween 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 15 pFBetween 0.2V DD – 0.8V DD, V DD= 4.5V – 5.5V, C L = 50 pFBetween 0.2V DD – 0.8V DD, V DD= 3.0V – 3.6V, C L = 30 pFBetween 0.2V DD – 0.8V DD, V DD= 3.0V – 3.6V, C L = 15 pF 1.81.20.93.44.02.4nsnsnsnsnsnst4Start-up time out of powerdownPWR_DWN pin LOW to HIGH[5]12mst5a Power down delay time(synchronous setting)PWR_DWN pin LOW to output LOW(T= period of output CLK)T/2T +10nst5b Power down delay time(asynchronous setting)PWR_DWN pin LOW to output LOW 1015ns t6Power up time From power on[5]12mst7a Output disable time(synchronous setting)OE pin LOW to output high-Z(T= period of output CLK)T/2T +10nst7b Output disable time(asynchronous setting)OE pin LOW to output high-Z1015nst8Output enable time(always synchronousenable)OE pin LOW to HIGH(T= period of output CLK)T 1.5T+25nsnst9Peak-to-peak periodjitter V DD = 3.0V – 3.6V, 4.5V – 5.5V, Fo > 33 MHz, V CO > 100 MHzV DD = 3.0V – 5.5V, Fo < 33 MHz800.3%1501%ps% ofF ONotes4.Not all parameters measured in production testing.5.Oscillator start time can not be guaranteed for all crystal types. This specification is for operation with AT cut crystals with ESR < 70Ω.Operating Conditions for Industrial Temperature DeviceElectrical Characteristics T A = –40°C to +85°CParameter DescriptionMin Max Unit V DD Supply voltage3.0 5.5V T A Operating temperature, ambient–40+85°C C TTLMax. capacitive load on outputs for TTL levelsV DD = 4.5 – 5.5V, output frequency = 1 – 40 MHz V DD = 4.5 – 5.5V, output frequency = 40 – 125 MHz V DD = 4.5 – 5.5V, output frequency = 125 – 133 MHz 351510pF pF pF C CMOSMax. capacitive load on outputs for CMOS levelsV DD = 4.5 – 5.5V, output frequency = 1 – 40 MHz V DD = 4.5 – 5.5V, output frequency = 40 – 125 MHz V DD = 4.5 – 5.5V, output frequency = 125 – 133 MHz V DD = 3.0 – 3.6V, output frequency = 1 – 40 MHz V DD = 3.0 – 3.6V, output frequency = 40 – 100 MHz 3515102010pF pF pF pF pF X REFReference frequency, input crystal with C load = 10 pF 1030MHz Reference frequency, external clock source175MHz t PUPower up time for all VDD's to reach minimum specified voltage (power ramps must be monotonic)0.0550msParameter DescriptionTest Conditions MinTyp.Max Unit V IL Low-level input voltage V DD = 4.5 – 5.5V V DD = 3.0 – 3.6V 0.80.2V DDV V V IH High-level input voltage V DD = 4.5 – 5.5V V DD = 3.0 – 3.6V2.00.7V DDV V V OL Low-level output voltage V DD = 4.5 – 5.5V, I OL = 16 mA V DD = 3.0 – 3.6V, I OL = 8 mA 0.40.4V V V OHCMOS High-level output voltage,CMOS levelsV DD = 4.5 – 5.5V, I OH = –16 mA V DD = 3.0 – 3.6V, I OH = –8 mA V DD – 0.4V DD – 0.4V V V OHTTL High-level output voltage,TTL levels V DD = 4.5 – 5.5V, I OH = –8 mA 2.4V I IL Input low current V IN = 0V 10μA I IH Input high current V IN = V DD5μA I DD Power supply current,Unloaded V DD = 4.5 – 5.5V, output frequency <= 133 MHz V DD = 3.0 – 3.6V, output frequency <= 100 MHz 4525mA mA I DDS [3]Stand-by current (PD = 0)V DD = 4.5 – 5.5V V DD = 3.0 – 3.6V251010050μA R UPInput pull up resistorV DD = 4.5 – 5.5V, V IN = 0V V DD = 4.5 – 5.5V, V IN = 0.7V DD 1.1503.01008.0200M Ωk ΩI OE_CLKOUT CLKOUT pull down currentV DD = 5.020μAOutput Clock Switching Characteristics IndustrialOver the Operating Range[4]Parameter Description Test Conditions Min Typ.Max Unitt1w Output duty cycle at 1.4V,V DD = 4.5 – 5.5Vt1w = t1A÷ t1B 1 – 40 MHz, C L <= 35 pF40 – 125 MHz, C L <= 15 pF125 – 133 MHz, C L <= 10 pF454545555555%%%t1x Output duty cycle atV DD/2, V DD = 4.5 – 5.5Vt1x = t1A÷ t1B 1 – 40 MHz, C L <= 35 pF40 – 125 MHz, C L <= 15 pF125 – 133 MHz, C L <= 10 pF454545555555%%%t1y Output duty cycle atV DD/2, V DD = 3.0 – 3.6Vt1y = t1A÷ t1B 1– 40 MHz, C L <= 20 pF40 – 100 MHz, C L <= 10 pF45405560%%t2Output clock rise time Between 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 35 pFBetween 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 15 pFBetween 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 10 pFBetween 0.2V DD – 0.8V DD, V DD= 4.5V – 5.5V, C L = 35 pFBetween 0.2V DD – 0.8V DD, V DD= 3.0V – 3.6V, C L = 20 pFBetween 0.2V DD – 0.8V DD, V DD= 3.0V – 3.6V, C L = 10 pF 1.81.20.93.44.02.4nsnsnsnsnsnst3Output clock fall time Between 0.8V – 2.0V, V DD = 4.5V – 5.5V, C L = 35 pFBetween 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 15 pFBetween 0.8 – 2.0V, V DD = 4.5V – 5.5V, C L = 10 pFBetween 0.2V DD – 0.8V DD, V DD= 4.5V – 5.5V, C L = 35 pFBetween 0.2V DD – 0.8V DD, V DD= 3.0V – 3.6V, C L = 20 pFBetween 0.2V DD – 0.8V DD, V DD= 3.0V – 3.6V, C L = 10 pF 1.81.20.93.44.02.4nsnsnsnsnsnst4Start-up time out ofPower downPWR_DWN pin LOW to HIGH[5]12mst5a Power down delay time(synchronous setting)PWR_DWN pin LOW to output LOW(T= period of output clk)T/2T+10nst5b Power down delay time(asynchronous setting)PWR_DWN pin LOW to output LOW 1015ns t6Power up time From power on[5]12mst7a Output Disable time(synchronous setting)OE pin LOW to output high-Z(T= period of output clk)T/2T + 10nst7b Output Disable time(asynchronous setting)OE pin LOW to output high-Z1015nst8Output Enable time(always synchronousenable)OE pin LOW to HIGH(T = period of output clk)T 1.5T +25nsnst9Peak-to-peak periodjitter V DD = 3.0V – 3.6V, 4.5V – 5.5V, Fo > 33 MHz, V CO > 100 MHzV DD = 3.0V – 5.5V, Fo < 33 MHz800.3%1501%ps% of F OSwitching WaveformsFigure 2. Duty Cycle Timing (t 1w , t 1x , t 1y )Figure 3. Output Rise/Fall TimeFigure 4. Power down Timing (synchronous and asynchronous modes)Figure 5. Power up TimingFigure 6. Output Enable Timing (synchronous and asynchronous modes)Notes6.In synchronous mode, the power down or output three-state is not initiated until the next falling edge of the output clock.7.In asynchronous mode, the power down or output three-state occurs within 25 ns regardless of position in the output clock cycle.t 1At 1BOUTPUTOUTPUTt 2V DD0Vt 3CLKOUTVDD t41/ft5aVILVIHPOWER DOWN0V1/ft5bCLKOUTT(synchronous [6])(asynchronous [7])CLKOUTV DDt61/fV DD – 10%POWERUP0Vmin 30 μs max 30 msCLKOUTV DD OUTPUT ENABLE0VVILt7at8High ImpedanceCLKOUTt7bt8High ImpedanceT(synchronous [6])(asynchronous[7])VIHTypical Rise/Fall Time [8] Trends for CY2077Figure 7. Rise/Fall Time vs. VDD over TemperaturesFigure 8. Rise/Fall Time vs. Output Loads over TemperaturesNote8.Rise/Fall time for CMOS output is measured between 1.2 V DD and 0.8 V DD . Rise/Fall time for TTL output is measured between 0.8V and 2.0V.Typical Duty Cycle [9] Trends for CY2077Figure 9. Duty Cycle vs. V DD over TemperaturesFigure 10. Duty Cycle vs. Output LoadFigure 11. Duty Cycle vs. Output Frequency over TemperaturesNote9.Duty cycle is measured at 1.4V for TTL output and 0.5 V DD for CMOS output.Typical Jitter Trends for CY2077Figure 12. Period Jitter (pk-pk) vs. V DD over TemperaturesFigure 13. Period Jitter (pk-pk) vs. Output Frequency over TemperaturesProgramming ProceduresCurrently the CY2077 is available only as a field-programmable device, as indicated by an “F” in the ordering code.Devices may be programmed using the CY3670 programmer, or via programmers available from third party programmer manufacturers such as Hi-Lo Systems and BP Micro. Programming services are also available from third parties, including some Cypress distribution partners.To generate a JEDEC format programming file, customers should use CyClocks software. This software automatically calculates the output frequencies that can be generated by CY2077 devices. The CyClocks software is a subset of the larger software tool CyberClocks, which is available free of charge from the Cypress web site (). CyberClocks is installed on a PC and should not be confused with the web-based application CyberClocks Online.For high volume designs, factory programming of customer-specific configurations is available on other 8-pin devices such as the CY22180, CY22801 and CY22381. Factory programming is no longer offered for new designs using the CY2077.Ordering InformationOrder Code[11]Package Name Package Type Operating Temp. Range Operating Voltage CY2077FS S88-pin SOIC Commercial (T = 0°C to 70°C) 3.3V or 5VPb-FreeCY2077FSXC S88-pin SOIC Commercial (T = 0°C to 70°C) 3.3V or 5VCY2077FSXCT S88-pin SOIC–Tape & Reel Commercial (T = 0°C to 70°C) 3.3V or 5VCY2077FZZ Z88-pin TSSOP Commercial (T = 0°C to 70°C) 3.3V or 5VTable 4. Obsolete or Not For New DesignsOriginal Device Replacement Device Order Code[10, 11]Description Order Code DescriptionCY2077SC-xxx noneCY2077SC-xxxT noneCY2077SI-xxx noneCY2077SI-xxxT noneCY2077SXC-xxx noneCY2077SXC-xxxT noneCY2077ZC-xxx noneCY2077ZC-xxxT noneCY2077ZI-xxx noneCY2077ZI-xxxT noneCY2077ZXC-xxx noneCY2077ZXC-xxxT noneCY2077FSI SOIC, Industrial (T = –40°C to 85°C)CY2077FSXC Pb-free SOIC, CommercialCY2077FZ TSSOP, Commercial (T = 0°C to 70°C)CY2077FZZ Pb-free TSSOP, CommercialCY2077FZI TSSOP, Industrial (T = –40°C to 85°C)CY2077FZZ Pb-free TSSOP, CommercialNotes10.The CY2077SC-xxx(T), CY2077SI-xxx(T), CY2077SXC-xxx(T), CY2077ZC-xxx(T), CY2077ZI-xxx(T) andCY2077ZXC-xxx(T), are factory programmed configurations.Factory programming is available for high-volume design opportunities. For more details, contact your local Cypress FAE or Cypress Sales Representative.11.The CY2077F are field programmable. For more details, contact your local Cypress FAE or Cypress Sales Representative.Package DiagramsFigure 15. 8-pin (4.40-mm Body) TSSOP (Thin Shrunk Small Outline Package)Document Number: 38-07210 Rev. *C Revised February 15, 2008Page 14 of 14© Cypress Semiconductor Corporation, 2002-2008. The information contained herein is subject to change without notice. Cypress Semiconductor Corporation assumes no responsibility for the use of any circuitry other than circuitry embodied in a Cypress product. Nor does it convey or imply any license under patent or other rights. Cypress products are not warranted nor intended to be used for medical, life support, life saving, critical control or safety applications, unless pursuant to an express written agreement with Cypress. Furthermore, Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress products in life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges.Any Source Code (software and/or firmware) is owned by Cypress Semiconductor Corporation (Cypress) and is protected by and subject to worldwide patent protection (United States and foreign),United States copyright laws and international treaty provisions. Cypress hereby grants to licensee a personal, non-exclusive, non-transferable license to copy, use, modify, create derivative works of,and compile the Cypress Source Code and derivative works for the sole purpose of creating custom software and or firmware in support of licensee product to be used only in conjunction with a Cypress integrated circuit as specified in the applicable agreement. Any reproduction, modification, translation, compilation, or representation of this Source Code except as specified above is prohibited without the express written permission of Cypress.Disclaimer: CYPRESS MAKES NO WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, WITH REGARD TO THIS MATERIAL, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. Cypress reserves the right to make changes without further notice to the materials described herein. Cypress does not assume any liability arising out of the application or use of any product or circuit described herein. Cypress does not authorize its products for use as critical components in life-support systems where a malfunction or failure may reasonably be expected to result in significant injury to the user. The inclusion of Cypress’ product in a life-support systems application implies that the manufacturer assumes all risk of such use and in doing so indemnifies Cypress against all charges. Use may be limited by and subject to the applicable Cypress software license agreement.Document History PageDocument Title: CY2077 High-accuracy EPROM Programmable Single-PLL Clock Generator Document Number: 38-07210REV.ECN NO.Issue Date Orig. of Change Description of Change**11172702/07/02DSG Convert from Spec number: 38-01009 to 38-07210*A 11493807/24/02CKN Added table and notes to page 11*B 12184312/14/02RBIPower up requirements added to Operating Conditions Information*C2104546See ECNPYG/KVM /AESA Updated Ordering Information table Replaced the “Custom Configuration Request Procedure” section with“Programming Procedures”Updated package diagrams。

USBPD规范（中文版）第二章第六节：操作概述（二）

USBPD规范（中文版）第二章第六节：操作概述（二）USB PD规范第二章浓缩了USB PD规范的精华，走马观花地讲了USB PD协议的工作原理。

假设你已经接触过USB PD协议，有一些基本的了解和相关知识，请先阅读本章，浅浅地尝一尝，试着找找感觉再决定要不要更加深入地了解和学习。

2.6.2 SNK Operation•在连接状态时（没有 PD 的连接）1. SNK 会通过对端有无输出 vSafe5V 来判断连接。

2. 对 DRP 端口来说会切换使其变成 SNK 以完成和 SRC 的连接。

3. 一旦 SNK 在 VBUS 上检测到 vSafe5V 的存在，它通过等对端是否发出 SRC_CAP 来判断对端为具有 PD 能力的 SRC。

4. 如果 SNK 没有在 tTypeCSinkWaitCap 时间内收到 SRC 发出的SRC_CAP，通过发出 Hard Reset 信号寄望于 SRC(具有 PD 能力)可以发出 SRC_CAP。

5. SNK 不会生成SOP’或SOP”的包，也没有必要检测SOP’或SOP”的包，同时不会去识别它们。

•建立 PD 的连接(PD 连接没完成或没有建立明确的契约关系)1. SNK 收到了 SRC_CAP 的 Message,然后用 GoodCRC 响应。

2. SNK 不会生成SOP’或SOP”的包，也没有必要检测SOP’或SOP”的包，就算检测到也要将其丢掉。

•建立显性契约关系(PD 连接但在 PRS 或 FRS 之后的契约关系还没建立)1. SNK 从SRC 那边收到SRC_CAP Message,然后用Request Message向SRC 发出供电请求。

如果是一个合法，有效的Request, SNK 收到了对端的Accept Message，当准备好供电给SNK 协商好的 Power 之后，同时会收到 SRC 发出的 PS_RDY Message，这个时候显性契约就建立了：（1）SNK 申请的电压应该是 SRC 发出的电压能力中的一个，即使它是被USB2.0,USB3.1,USB Type-C 1.2 或USBBC 1.2 所支持的vSafe5V 输出，为的能够协商更高的电压。

Tableau Forensic T7u PCIe Bridge 快速参考指南说明书

GETTING STARTEDConfirm that the bridge is off before beginning.1. Using a Tableau PCIe Adapter, connect one source drive to the bridgePCIe port2. Connect the bridge to the host computer using the host USB port3. Connect the power supply to the bridge’s DC In4.Before you remove the connected PCIe drive or power down the T7u, safely eject or unmount the drive on your host computer.LCD MENU OPTIONSDevice Info Displays the connected PCIe drive mfg, model, serial number and firmware versionSelect LUN If the drive has multiple LUNs, select a LUN to mountBridge Info Displays T7u firmware version, serial number and DIPswitch configurationShow Status Displays information related to current statusUse the Menu and Enter buttons to navigate through these LCD menus:Menu Advance to next main menu screenEnter Advance to the first/next informational screen/contact CONNECTION RECOMMENDATIONSFor PCIe Drives Connect a Tableau PCIe Adapter• for PCIe card SSD, use TDA7-1• for PCIe M.2 SSD, use TDA7-2• for Apple mid-2013 – 2016 PCIe SSD, use TDA7-3• for PCIe U.2 SSD, use TDA7-4• for Apple 2016+ PCIe SSD, use TDA7-7to T7u using a Tableau PCIe Cable• TC-PCIe-(4, 8, 20)For the Host Connection Use a Tableau USB 3.0 cable (TC-USB3)For Power (DC In)Use a Tableau power supply (TP7 or TP2)DIP SWITCH SETTINGSSWITCH 1OFF = Read-OnlySWITCH 2ON = Hide Write ProtectOFF = Report Write ProtectSWITCH 3ON = Hide Write ErrorsOFF = Report Write ErrorsSWITCH 4No Function* Default setting is OFF for all switchesFIRMWARE UPDATESFree firmware updates are provided for Tableau Forensic products on a regular basis through the Tableau Firmware Update (TFU) utility. Reference the Tableau Download Center webpage for more information:/products/tableau-download-centerSUPPORTFor Tableau Forensic product support:/support/security-encase-tableauABOUT OPENTEXTOpenText, The Information Company, enables organizations to gain insight through market leading information management solutions, on-premises or in the cloud. For more information about OpenText (NASDAQ: OTEX, TSX: OTEX) visit: . CONNECT WITH US:• OpenText CEO Mark Barrenechea’s blog• Twitter|LinkedInLocate breakawayplastic & removeAdjust DIP switchesfor intended useCopyright © 2023 Open Text. All Rights Reserved. Trademarks owned by Open Text.For more information, visit: https:///about/copyright-information • SKU 22756 | 05/23。

Seagate Seven 500GB 移动硬盘说明书

DISQUE PORTABLEFiche techniqueRepousser les limites du possibleNous avons créé un disque portable exceptionnel, le Seagate Seven™, pour célébrerplus de 35 années d’expérience et d’innovation dans le domaine du stockage.Ce produit hommage est l’illustration parfaite de cette alliance entre rechercheet développement avancés et conception industrielle de pointe, pour donner naissanceau plus fin des disques portables 500 Go. Nous avons logé le Seagate Seven dansun boîtier entièrement fait d’acier pour créer à la fois le disque externe le plus findu marché et un objet élégant rappelant l’essence du stockage : un disque nu. Pourparfaire le tableau, ce disque est fourni avec un câble USB 3.0 tressé, performantet esthétique, à l’opposé des câbles standards qui accompagnent la plupart desdisques externes. En outre, le Seagate Seven est alimenté par le bus. Il tire donc sonénergie directement du port USB et ne requiert aucune alimentation externe, ce quien fait un allier idéal pour vos déplacements. Repoussez les limites du possible avecle Seagate Seven, le disque portable le plus fin du marché.DISQUE PORTABLEAMÉRIQUESSeagate Technology LLC 10200 South De Anza Boulevard, Cupertino, California 95014, United States, +1 408 658 1000 ASIE/PACIFIQUE Seagate Singapore International Headquarters Pte. Ltd. 7000 Ang Mo Kio Avenue 5, Singapour 569877, +65 6485 3888 EUROPE, MOYEN-ORIENT ET AFRIQUESeagate Technology SAS 16-18 rue du Dôme, 92100 Boulogne-Billancourt, France, +33 (0)1 41 86 10 00© 2015 Seagate Technology LLC. Tous droits réservés. Seagate, Seagate Technology et le logo Wave sont des marques ou des marques déposées de Seagate Technology LLC ou de l’une de ses filiales aux États-Unis et/ou dans d’autres pays. Seagate Seven est une marque ou une marque déposée de Seagate Technology LLC ou de l’une de ses filiales aux États-Unis et/ou dans d’autres pays. Les autres noms de produits cités sont des marques ou des marques déposées de leurs propriétaires respectifs. En termes de capacité de disque, un gigaoctet (Go) équivaut à un milliard d’octets. La capacité accessible peut varier en fonction des normes de mesure du système d’exploitation de l’ordinateur hôte. En outre, certaines capacités répertoriées ci-dessus sont utilisées pour le formatage, entre autres fonctions, et ne sont donc pas disponibles pour le stockage de données. Il est de la responsabilité de l’utilisateur de se conformer aux lois applicables relatives aux droits d’auteur. Seagate se réserve le droit de modifier sans préavis les offres ou les caractéristiques de ses produits. DS1837.2-1501FRAvec Mac, un reformatage peut être nécessaire.La compatibilité peut varier en fonction de la configuration matérielle et du système d’exploitation de l’utilisateur. En termes de capacité de disque, un gigaoctet (ou « Go ») équivaut à un milliard d’octets.。