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WO2012048598A1 - Mobile memory express card and computer - Google Patents

Mobile memory express card and computer Download PDF

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Publication number
WO2012048598A1
WO2012048598A1 PCT/CN2011/077168 CN2011077168W WO2012048598A1 WO 2012048598 A1 WO2012048598 A1 WO 2012048598A1 CN 2011077168 W CN2011077168 W CN 2011077168W WO 2012048598 A1 WO2012048598 A1 WO 2012048598A1
Authority
WO
WIPO (PCT)
Prior art keywords
interface
bridge chip
memory
port
serial bus
Prior art date
Application number
PCT/CN2011/077168
Other languages
French (fr)
Chinese (zh)
Inventor
张明强
阳祖胜
谭学慧
Original Assignee
上海源翰数码科技有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 上海源翰数码科技有限公司 filed Critical 上海源翰数码科技有限公司
Publication of WO2012048598A1 publication Critical patent/WO2012048598A1/en

Links

Classifications

    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0628—Interfaces specially adapted for storage systems making use of a particular technique
    • G06F3/0655—Vertical data movement, i.e. input-output transfer; data movement between one or more hosts and one or more storage devices
    • G06F3/0661—Format or protocol conversion arrangements
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0602—Interfaces specially adapted for storage systems specifically adapted to achieve a particular effect
    • G06F3/0604—Improving or facilitating administration, e.g. storage management
    • G06F3/0607—Improving or facilitating administration, e.g. storage management by facilitating the process of upgrading existing storage systems, e.g. for improving compatibility between host and storage device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers
    • G06F3/0601—Interfaces specially adapted for storage systems
    • G06F3/0668—Interfaces specially adapted for storage systems adopting a particular infrastructure
    • G06F3/0671—In-line storage system
    • G06F3/0673—Single storage device
    • G06F3/0679—Non-volatile semiconductor memory device, e.g. flash memory, one time programmable memory [OTP]

Definitions

  • the invention relates to a mobile storage expansion card and a computer.
  • BACKGROUND OF THE INVENTION With the development of storage technology, the transmission speed of USB 2.0 of 30M per second is more and more difficult to meet the large-capacity data storage such as high-definition movies developed in recent years.
  • the USB 3.0 standard was officially released and released publicly, providing a higher 5Gb transfer rate per second and backward compatibility with USB 2.0 devices.
  • the functions of USB 3.0 devices in the related art are generally relatively simple.
  • SUMMARY OF THE INVENTION The present invention has been made in view of the problem that the functions of the USB 3.0 devices in the related art are generally relatively simple.
  • a mobile storage expansion card comprises: a peripheral component interconnect extension interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnect extension interface connected to the first port of the bridge chip; a memory, and the A second port of the bridge chip is coupled; and a first universal serial bus 3.0 interface is coupled to the memory.
  • the mobile storage expansion card further includes: a gate switch; wherein the memory is connected to the second port of the bridge chip via the gate switch, and the first universal serial bus 3.0 interface is connected
  • the strobe switch is coupled to the memory.
  • the gating switch is configured to gate the following communication path: an access path of the second universal serial bus 3.0 interface to the memory; and the peripheral component interconnect extension interface via the bridge chip The access path to the memory.
  • the memory is connected to the first end of the strobe switch, the first universal serial bus 3.0 interface is connected to the second end of the strobe switch, and the second port of the bridge chip is connected to The third end of the gating switch.
  • the strobe switch is configured to strobe the following communication path according to the level signal.
  • the mobile storage expansion card further includes: a second universal serial bus 3.0 interface connected to the third port of the bridge chip.
  • a mobile storage expansion card comprising: a peripheral component interconnect expansion interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnection extension interface, The first port of the bridge chip is connected; the universal serial bus 3.0 interface is connected to the second port of the bridge chip; and the memory is connected to the third end ⁇ of the bridge chip.
  • a computer is provided. The computer has any of the above-described mobile storage expansion cards.
  • a mobile storage expansion card of the following structure is used: a peripheral component interconnect extension interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnect extension interface connected to the first port of the bridge chip; And connecting to the second port of the bridge chip; and the first universal serial bus 3.0 interface, connected to the memory, solving the problem that the functions of the USB 3.0 device in the related art are generally relatively simple, thereby achieving The effect of making the functions of the mobile storage expansion card more diverse.
  • FIG. 1 is a schematic diagram of a mobile storage expansion card according to a first embodiment of the present invention
  • FIG. 2 is a schematic diagram of a mobile storage expansion card according to a second embodiment of the present invention
  • FIG. 3 is a third embodiment of the present invention.
  • FIG. 4 is a schematic diagram of a gating switch in accordance with an embodiment of the present invention.
  • FIG. 1 is a schematic diagram of a mobile storage expansion card in accordance with a first embodiment of the present invention. As shown in FIG.
  • the mobile storage expansion card includes: a peripheral component interconnection expansion interface to a universal serial bus 3.0 interface bridge chip, and is used for converting a peripheral component interconnection expansion interface into a universal serial bus 3.0 interface; a Peripheral Component Interconnect Express (PCIe), connected to the first port of the bridge chip, for establishing communication with an external computer, so that the mobile storage expansion card can be used as a hard disk of the computer; a memory connected to the second port of the bridge chip for storing data; and a first Universal Serial Bus (USB) 3.0 interface connected to the memory so that the computer can pass the first universal string
  • PCIe Peripheral Component Interconnect Express
  • USB Universal Serial Bus
  • the mobile storage expansion card can be used as an extended hard disk of the computer or as a USB flash drive, thereby realizing the two-in-one of the extended storage function.
  • You can expand a USB3.0 HOST interface to a computer with an Express interface without USB3.0.
  • When used as a high-capacity mobile storage device it provides high-speed data transfer at up to 5Gps for external devices and hosts and is compatible with the USB2.0 interface. It can also be used as an Express Card hard disk to increase the local storage capacity of the notebook and realize a multi-purpose function.
  • 2 is a schematic diagram of a mobile storage expansion card in accordance with a second embodiment of the present invention.
  • the mobile storage expansion card may further include a gating switch. As shown in FIG.
  • the memory is connected to the second port of the bridge chip via the strobe switch, and the first universal serial bus 3.0 interface is connected to the memory via the strobe switch.
  • a strobe switch such as a Switch chip, needs to be added.
  • the Switch chip will disconnect from the USB Interface and only connect to the PCI Express Interface to prevent the string 4 from occurring, so that the computer can access the internal SSD through PCI Express.
  • the Switch chip When the Express Card/34 SSD is used as a USB flash drive to plug into the USB3.0 interface, the Switch chip will disconnect from the PCI Express Interface and remain connected only to the USB Interface to prevent crosstalk from occurring to ensure that the computer can pass the USB3.0 interface. Normal access to the internal SSD.
  • the above-described strobe switch can be used to strobe the following communication paths: the access path of the second universal serial bus 3.0 interface to the memory; and the access path of the peripheral component interconnect extension interface to the memory via the bridge chip .
  • the memory can be connected to the first end of the gating switch, the first universal serial bus 3.0 interface is connected to the second end of the gating switch, and the second port of the bridge chip is connected to the third end of the gating switch .
  • the strobe switch can strobe the following communication paths according to the level signal.
  • the mobile storage expansion card described above may further include a second universal serial bus 3.0 interface coupled to the third port of the bridge chip.
  • the mobile storage expansion card according to the second embodiment of the present invention can be used as an expansion hard disk of a computer or as a USB flash drive, and can also be used as a transfer device of PCIe and USB 3.0. Thereby achieving a three-in-one function.
  • 3 is a schematic diagram of a mobile storage expansion card in accordance with a third embodiment of the present invention.
  • a removable storage expansion card includes: a peripheral component interconnection extension interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnection extension interface connected to the first port of the bridge chip; a bus 3.0 interface, connected to the second port of the bridge chip; and a memory connected to the third port of the bridge chip.
  • 4 is a schematic diagram of a gate switch in accordance with an embodiment of the present invention. As shown in FIG.
  • the gating switch has the following tubes *p, A ⁇ , B ⁇ , Al, A3 ⁇ , Bl, B2, and SEL control pins, wherein the pins A, 8 ⁇ are connected to A memory, such as SSD memory, Al and Bl ⁇ is coupled to the first USB 3.0 interface to enable access by the first USB 3.0 interface to the memory. 2 ⁇ and B2 ⁇ are connected to the bridge chip, thereby enabling the computer to access the memory through the PCIe interface.
  • the SEL control pin can be connected between the two resistors of the power supply and the ground, and the access of the external interface to the memory is switched by the change of the level signal, specifically, the connection is made through PCIe.
  • the embodiment of the invention further provides a computer having the mobile storage expansion card of any of the above embodiments.
  • the above-mentioned solid state mobile storage Express Card based on USB3.0 technology can convert the PCIe interface into two USB3.0 interfaces, one for providing USB3.0 Host interface to external devices and one for reading internal mass storage devices ( SSD).
  • the internal mass storage device (SSD) supports access to the external USB3.0 interface in addition to the express card interface.
  • the intelligent self-selected access mode used in the present invention can switch the access path by itself when accessing a large-capacity storage device (S SD ) on different interfaces.
  • the present invention achieves the following technical effects: When used as a large-capacity mobile storage device, it provides high-speed data transmission at a rate of up to 5 Gps for the external device and the host and is compatible with the USB 2.0 interface. It can be used as an Express Card hard disk to increase the local storage capacity of the notebook and realize a multi-purpose function.
  • the invention adopts the Express Card/34 standard, is small in size, and is easy to carry. Using the latest USB 3.0 standard for faster transfer speeds, and compatible USB 2.0 interface can also be used for older PCs.
  • the two-in-one or three-in-one function of the present invention can be used not only as a high-speed mobile storage device supporting USB 3.0 backward compatible with USB2.0 and PCI Express, but also as a computer without a USB3.0 interface with a PCIe interface. Extend a USB3.0 main interface to connect to other USB3.0 devices (such as printers, USB flash drives, etc.).
  • the storage medium of the invention is FLASH, and has the advantages of low power consumption, small volume, convenient carrying, anti-vibration and anti-dropping.
  • the transmission speed of the PCIe interface and the USB3.0 interface in the present invention may be twice as high as in the prior art.
  • modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module.
  • the invention is not limited to any specific combination of hardware and software.
  • the above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

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  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Information Transfer Systems (AREA)
  • Storage Device Security (AREA)

Abstract

Disclosed are a mobile memory express card and computer. The mobile memory express card comprises: a bridge chip for converting a peripheral component interconnect express interface into a universal serial bus (USB) 3.0 interface; a peripheral component interconnect express interface connected to a first port of the bridge chip; a memory connected to a second port of the bridge chip; and the USB 3.0 interface connected to the memory. Through the present invention, the functions of the mobile memory express card can be diversified.

Description

移动存储扩展卡及计算机 技术领域 本发明涉及一种移动存储扩展卡及计算机。 背景技术 随着存储技术的发展， USB2.0每秒 30M的传输速度越来越难以满足这几 年发展起来的高清电影等大容量的数据存储。 2008年 11月 17 日， USB 3.0标 准正式完成并公开发布，提供了更高的每秒 5Gb传输速度，并向下兼容 USB 2.0 设备。 然而， 在相关技术中的 USB 3.0设备的功能普遍比较单一。 发明内容 针对相关技术中的 USB 3.0 设备的功能普遍比较单一的问题而提出本发 明， 为此， 本发明的主要目的在于提供一种移动存储扩展卡及计算机， 以解决 上述问题。 为了实现上述目的，根据本发明的一个方面，提供了一种移动存储扩展卡。 根据本发明的移动存储扩展卡包括： 外围部件互连扩展接口转通用串行总 线 3.0接口桥接芯片； 外围部件互连扩展接口， 与所述桥接芯片的第一端口相 连接； 存储器， 与所述桥接芯片的第二端口相连接； 以及第一通用串行总线 3.0 接口， 与所述存储器相连接。 进一步地， 上述移动存储扩展卡还包括： 选通开关； 其中， 所述存储器经 由所述选通开关与所述桥接芯片的第二端口相连接，所述第一通用串行总线 3.0 接口经由所述选通开关与所述存储器相连接。 进一步地， 所述选通开关用于对以下通信路径进行选通： 所述第二通用串 行总线 3.0接口对所述存储器的访问路径； 以及所述外围部件互连扩展接口经 由所述桥接芯片对所述存储器的访问路径。 进一步地， 所述存储器连接至所述选通开关的第一端， 所述第一通用串行 总线 3.0接口连接至所述选通开关的第二端， 所述桥接芯片的第二端口连接至 所述选通开关的第三端。 进一步地， 所述选通开关用于根据电平信号对以下通信路径进行选通。 进一步地， 上述移动存储扩展卡还包括： 第二通用串行总线 3.0接口， 与 所述桥接芯片的第三端口相连接。 为了实现上述目的，根据本发明的另一方面，提供了一种移动存储扩展卡， 包括： 外围部件互连扩展接口转通用串行总线 3.0接口桥接芯片； 外围部件互 连扩展接口， 与所述桥接芯片的第一端口相连接； 通用串行总线 3.0接口， 与 所述桥接芯片的第二端口相连接； 以及存储器， 连接于所述桥接芯片的第三端 α。 为了实现上述目的， 根据本发明的另一方面， 提供了一种计算机。 该计算 机具有上述的任意一种移动存储扩展卡。 通过本发明， 釆用以下结构的移动存储扩展卡： 外围部件互连扩展接口转 通用串行总线 3.0接口桥接芯片； 外围部件互连扩展接口， 与所述桥接芯片的 第一端口相连接； 存储器， 与所述桥接芯片的第二端口相连接； 以及第一通用 串行总线 3.0接口， 与所述存储器相连接， 解决了相关技术中的 USB 3.0设备 的功能普遍比较单一的问题， 进而达到了使移动存储扩展卡的功能更加多样化 的效果。 附图说明 此处所说明的附图用来提供对本发明的进一步理解， 构成本申请的一部 分， 本发明的示意性实施例及其说明用于解释本发明， 并不构成对本发明的不 当限定。 在附图中： 图 1是根据本发明第一实施例的移动存储扩展卡的示意图； 图 2是根据本发明第二实施例的移动存储扩展卡的示意图； 图 3是根据本发明第三实施例的移动存储扩展卡的示意图； 以及 图 4是 居本发明实施例的选通开关的示意图。 具体实施方式 需要说明的是， 在不冲突的情况下， 本申请中的实施例及实施例中的特征 可以相互组合。 下面将参考附图并结合实施例来详细说明本发明。 图 1是根据本发明第一实施例的移动存储扩展卡的示意图。 如图 1所示， 该移动存储扩展卡， 包括： 外围部件互连扩展接口转通用串 行总线 3.0接口桥接芯片，用于将外围部件互连扩展接口转为通用串行总线 3.0 接口； 夕卜围部件互连扩展接口 ( Peripheral Component Interconnect Express, 简 称为 PCIe ), 与桥接芯片的第一端口相连接， 用于与外部的计算机建立通信， 以使得该移动存储扩展卡可以作为计算机的硬盘使用； 存储器， 与桥接芯片的 第二端口相连接，用于存储数据；以及第一通用串行总线（ Universal Serial BUS , 简称为 USB ) 3.0接口， 与存储器相连接， 以便计算机可以经由该第一通用串 行总线 3.0接口对存储器中的数据进行读写操作。 在上述实施例中， 移动存储扩展卡既可以作为计算机的扩展硬盘来使用， 也可以作为优盘来使用， 从而实现了扩展存储功能的二合一。 可以给没有 USB3.0而带 Express接口的电脑扩展出一个 USB3.0 HOST接 口。 作为大容量移动存储设备使用时， 为外部设备和主机提供速率达 5Gps的 高速数据传输且兼容 USB2.0接口。 还可以作为 Express Card 口硬盘使用， 增 加笔记本电脑的本地存储容量， 实现一"" ^多用的功能。 图 2是根据本发明第二实施例的移动存储扩展卡的示意图。 优选地， 该移动存储扩展卡还可以包括选通开关。 如图 2所示， 其中， 存 储器经由该选通开关与桥接芯片的第二端口相连接， 第一通用串行总线 3.0接 口经由选通开关与存储器相连接。 在高速信号传输过程中， 当两个 HOST 口都要访问一个 Device设备时， 为了防止串 4尤的影响， 需要加入一个选通开关， 例如 Switch芯片。 当 Express Card/34 SSD插入 PCI Express Interface时， Switch芯片将断开 与 USB Interface的接口， 而只与 PCI Express Interface保持连接， 防止串 4尤发 生， 以保证电脑通过 PCI Express能够正常访问内部 SSD 。 当 Express Card/34 SSD作为 U盘使用插入 USB3.0接口时， Switch芯片将 断开与 PCI Express Interface的接口， 而只与 USB Interface保持连接， 防止串 扰发生， 以保证电脑通过 USB3.0接口能够正常访问内部 SSD. 上述的选通开关可以用于对以下通信路径进行选通： 第二通用串行总线 3.0接口对存储器的访问路径； 以及外围部件互连扩展 接口经由桥接芯片对存储器的访问路径。 如图所示， 存储器可以连接至选通开关的第一端， 第一通用串行总线 3.0 接口连接至选通开关的第二端， 桥接芯片的第二端口连接至选通开关的第三 端。 选通开关可以才艮据电平信号对以下通信路径进行选通。 上述的移动存储扩展卡还可以包括第二通用串行总线 3.0接口， 与桥接芯 片的第三端口相连接。 根据本发明第二实施例的移动存储扩展卡、 既可以作为计算机的扩展硬 盘， 或作为优盘， 还可以作为 PCIe和 USB3.0的转接设备。 从而实现了功能的 三合一。 图 3是根据本发明第三实施例的移动存储扩展卡的示意图。 根据本发明第三实施例的移动存储扩展卡包括： 外围部件互连扩展接口转 通用串行总线 3.0接口桥接芯片； 外围部件互连扩展接口， 与桥接芯片的第一 端口相连接； 通用串行总线 3.0接口， 与桥接芯片的第二端口相连接； 以及存 储器， 连接于桥接芯片的第三端口。 图 4是 居本发明实施例的选通开关的示意图。 如图 4所示， 该选通开关具有以下管 *p , A±、 B±、 Al士、 A3±、 Bl士、 B2士 以及 SEL控制管脚， 其中， 管脚 A士、 8±连接至存储器， 例如， SSD存储器， Al 和 Bl±连接至第一 USB3.0接口， 以实现第一 USB3.0接口对所述存储器的 访问。 2±和 B2±连接至桥接芯片， 从而实现计算机通过 PCIe接口对所述存储 器进行访问。 SEL控制管脚可以连接至电源和接地端的两个电阻之间， 通过电 平信号的变化对外部接口对存储器的访问进行切换， 具体地， 对通过 PCIe接 口对存储器的访问路径和通过第一 USB3.0接口对所述存储器的访问路径进行 切换。 本发明实施例还提供了计算机， 该计算机具有上述任意实施例所述的移动 存储扩展卡。 上述基于 USB3.0技术的固态移动存储 Express Card, 可以将 PCIe接口转 成两个 USB3.0接口， 一个用来给外部设备提供 USB3.0 Host接口， 一个用来 读取内部大容量存储设备（ SSD )。内部大容量存储设备（ SSD )除了 express card 接口访问外， 还支持外部 USB3.0接口的访问。 本发明釆用的智能自选择访问模式， 在不同接口访问大容量存储设备 ( S SD ) 时， 能够自己动切换访问路径。 从以上的描述中， 可以看出， 本发明实现了如下技术效果： 作为大容量移动存储设备使用时， 为外部设备和主机提供速率达 5Gps的 高速数据传输且兼容 USB2.0接口。 可以作为 Express Card 口硬盘使用， 增加笔记本电脑的本地存储容量， 实 现一"" ^多用的功能。 本发明釆用 Express Card/34标准， 体积小， 便于携带。 使用最新的 USB3.0标准使传输速度更快， 且兼容 USB2.0接口也能用于 老式 PC的使用。 本发明釆用的二合一或者三合一功能， 不仅能作为支持 USB 3.0向下兼容 USB2.0以及 PCI Express的高速移动存储设备使用， 而且能为没有 USB3.0接 口带有 PCIe 接口的电脑扩展出一个 USB3.0 的主接口来， 用来连接其他的 USB3.0的设备 (如打印机、 U盘等）。 本发明存储介质为 FLASH, 具有功耗低、 体积小、 方便携带， 抗震动、 防摔的优点。 本发明中的 PCIe接口和 USB3.0接口的传输速度可以为现有技术的 2倍以 显然， 本领域的技术人员应该明白， 上述的本发明的各模块或各步骤可以 用通用的计算装置来实现， 它们可以集中在单个的计算装置上， 或者分布在多 个计算装置所组成的网络上， 可选地， 它们可以用计算装置可执行的程序代码 来实现， 从而， 可以将它们存储在存储装置中由计算装置来执行， 或者将它们 分别制作成各个集成电路模块， 或者将它们中的多个模块或步骤制作成单个集 成电路模块来实现。 这样， 本发明不限制于任何特定的硬件和软件结合。 以上所述仅为本发明的优选实施例而已， 并不用于限制本发明， 对于本领 域的技术人员来说， 本发明可以有各种更改和变化。 凡在本发明的 ^"神和原则 之内， 所作的任何修改、 等同替换、 改进等， 均应包含在本发明的保护范围之 内。 BACKGROUND OF THE INVENTION 1. Field of the Invention The invention relates to a mobile storage expansion card and a computer. BACKGROUND With the development of storage technology, the transmission speed of USB 2.0 of 30M per second is more and more difficult to meet the large-capacity data storage such as high-definition movies developed in recent years. On November 17, 2008, the USB 3.0 standard was officially released and released publicly, providing a higher 5Gb transfer rate per second and backward compatibility with USB 2.0 devices. However, the functions of USB 3.0 devices in the related art are generally relatively simple. SUMMARY OF THE INVENTION The present invention has been made in view of the problem that the functions of the USB 3.0 devices in the related art are generally relatively simple. To this end, the main object of the present invention is to provide a mobile storage expansion card and a computer to solve the above problems. In order to achieve the above object, according to an aspect of the present invention, a mobile storage expansion card is provided. A removable storage expansion card according to the present invention comprises: a peripheral component interconnect extension interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnect extension interface connected to the first port of the bridge chip; a memory, and the A second port of the bridge chip is coupled; and a first universal serial bus 3.0 interface is coupled to the memory. Further, the mobile storage expansion card further includes: a gate switch; wherein the memory is connected to the second port of the bridge chip via the gate switch, and the first universal serial bus 3.0 interface is connected The strobe switch is coupled to the memory. Further, the gating switch is configured to gate the following communication path: an access path of the second universal serial bus 3.0 interface to the memory; and the peripheral component interconnect extension interface via the bridge chip The access path to the memory. Further, the memory is connected to the first end of the strobe switch, the first universal serial bus 3.0 interface is connected to the second end of the strobe switch, and the second port of the bridge chip is connected to The third end of the gating switch. Further, the strobe switch is configured to strobe the following communication path according to the level signal. Further, the mobile storage expansion card further includes: a second universal serial bus 3.0 interface connected to the third port of the bridge chip. In order to achieve the above object, according to another aspect of the present invention, a mobile storage expansion card is provided, comprising: a peripheral component interconnect expansion interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnection extension interface, The first port of the bridge chip is connected; the universal serial bus 3.0 interface is connected to the second port of the bridge chip; and the memory is connected to the third end α of the bridge chip. In order to achieve the above object, according to another aspect of the present invention, a computer is provided. The computer has any of the above-described mobile storage expansion cards. With the present invention, a mobile storage expansion card of the following structure is used: a peripheral component interconnect extension interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnect extension interface connected to the first port of the bridge chip; And connecting to the second port of the bridge chip; and the first universal serial bus 3.0 interface, connected to the memory, solving the problem that the functions of the USB 3.0 device in the related art are generally relatively simple, thereby achieving The effect of making the functions of the mobile storage expansion card more diverse. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set to illustrate,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 1 is a schematic diagram of a mobile storage expansion card according to a first embodiment of the present invention; FIG. 2 is a schematic diagram of a mobile storage expansion card according to a second embodiment of the present invention; FIG. 3 is a third embodiment of the present invention. A schematic diagram of a mobile storage expansion card of the example; and FIG. 4 is a schematic diagram of a gating switch in accordance with an embodiment of the present invention. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS It should be noted that the embodiments in the present application and the features in the embodiments may be combined with each other without conflict. The invention will be described in detail below with reference to the drawings in conjunction with the embodiments. 1 is a schematic diagram of a mobile storage expansion card in accordance with a first embodiment of the present invention. As shown in FIG. 1, the mobile storage expansion card includes: a peripheral component interconnection expansion interface to a universal serial bus 3.0 interface bridge chip, and is used for converting a peripheral component interconnection expansion interface into a universal serial bus 3.0 interface; a Peripheral Component Interconnect Express (PCIe), connected to the first port of the bridge chip, for establishing communication with an external computer, so that the mobile storage expansion card can be used as a hard disk of the computer; a memory connected to the second port of the bridge chip for storing data; and a first Universal Serial Bus (USB) 3.0 interface connected to the memory so that the computer can pass the first universal string The row bus 3.0 interface reads and writes data in the memory. In the above embodiment, the mobile storage expansion card can be used as an extended hard disk of the computer or as a USB flash drive, thereby realizing the two-in-one of the extended storage function. You can expand a USB3.0 HOST interface to a computer with an Express interface without USB3.0. When used as a high-capacity mobile storage device, it provides high-speed data transfer at up to 5Gps for external devices and hosts and is compatible with the USB2.0 interface. It can also be used as an Express Card hard disk to increase the local storage capacity of the notebook and realize a multi-purpose function. 2 is a schematic diagram of a mobile storage expansion card in accordance with a second embodiment of the present invention. Preferably, the mobile storage expansion card may further include a gating switch. As shown in FIG. 2, the memory is connected to the second port of the bridge chip via the strobe switch, and the first universal serial bus 3.0 interface is connected to the memory via the strobe switch. In the process of high-speed signal transmission, when two HOST ports need to access a Device device, in order to prevent the influence of the string 4, a strobe switch, such as a Switch chip, needs to be added. When the Express Card/34 SSD is inserted into the PCI Express Interface, the Switch chip will disconnect from the USB Interface and only connect to the PCI Express Interface to prevent the string 4 from occurring, so that the computer can access the internal SSD through PCI Express. When the Express Card/34 SSD is used as a USB flash drive to plug into the USB3.0 interface, the Switch chip will disconnect from the PCI Express Interface and remain connected only to the USB Interface to prevent crosstalk from occurring to ensure that the computer can pass the USB3.0 interface. Normal access to the internal SSD. The above-described strobe switch can be used to strobe the following communication paths: the access path of the second universal serial bus 3.0 interface to the memory; and the access path of the peripheral component interconnect extension interface to the memory via the bridge chip . As shown, the memory can be connected to the first end of the gating switch, the first universal serial bus 3.0 interface is connected to the second end of the gating switch, and the second port of the bridge chip is connected to the third end of the gating switch . The strobe switch can strobe the following communication paths according to the level signal. The mobile storage expansion card described above may further include a second universal serial bus 3.0 interface coupled to the third port of the bridge chip. The mobile storage expansion card according to the second embodiment of the present invention can be used as an expansion hard disk of a computer or as a USB flash drive, and can also be used as a transfer device of PCIe and USB 3.0. Thereby achieving a three-in-one function. 3 is a schematic diagram of a mobile storage expansion card in accordance with a third embodiment of the present invention. A removable storage expansion card according to a third embodiment of the present invention includes: a peripheral component interconnection extension interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnection extension interface connected to the first port of the bridge chip; a bus 3.0 interface, connected to the second port of the bridge chip; and a memory connected to the third port of the bridge chip. 4 is a schematic diagram of a gate switch in accordance with an embodiment of the present invention. As shown in FIG. 4, the gating switch has the following tubes *p, A±, B±, Al, A3±, Bl, B2, and SEL control pins, wherein the pins A, 8± are connected to A memory, such as SSD memory, Al and Bl± is coupled to the first USB 3.0 interface to enable access by the first USB 3.0 interface to the memory. 2± and B2± are connected to the bridge chip, thereby enabling the computer to access the memory through the PCIe interface. The SEL control pin can be connected between the two resistors of the power supply and the ground, and the access of the external interface to the memory is switched by the change of the level signal, specifically, the connection is made through PCIe. The port-to-memory access path and the access path to the memory through the first USB 3.0 interface. The embodiment of the invention further provides a computer having the mobile storage expansion card of any of the above embodiments. The above-mentioned solid state mobile storage Express Card based on USB3.0 technology can convert the PCIe interface into two USB3.0 interfaces, one for providing USB3.0 Host interface to external devices and one for reading internal mass storage devices ( SSD). The internal mass storage device (SSD) supports access to the external USB3.0 interface in addition to the express card interface. The intelligent self-selected access mode used in the present invention can switch the access path by itself when accessing a large-capacity storage device (S SD ) on different interfaces. From the above description, it can be seen that the present invention achieves the following technical effects: When used as a large-capacity mobile storage device, it provides high-speed data transmission at a rate of up to 5 Gps for the external device and the host and is compatible with the USB 2.0 interface. It can be used as an Express Card hard disk to increase the local storage capacity of the notebook and realize a multi-purpose function. The invention adopts the Express Card/34 standard, is small in size, and is easy to carry. Using the latest USB 3.0 standard for faster transfer speeds, and compatible USB 2.0 interface can also be used for older PCs. The two-in-one or three-in-one function of the present invention can be used not only as a high-speed mobile storage device supporting USB 3.0 backward compatible with USB2.0 and PCI Express, but also as a computer without a USB3.0 interface with a PCIe interface. Extend a USB3.0 main interface to connect to other USB3.0 devices (such as printers, USB flash drives, etc.). The storage medium of the invention is FLASH, and has the advantages of low power consumption, small volume, convenient carrying, anti-vibration and anti-dropping. The transmission speed of the PCIe interface and the USB3.0 interface in the present invention may be twice as high as in the prior art. Obviously, those skilled in the art should understand that the above modules or steps of the present invention can be implemented by a general-purpose computing device, which can be concentrated on a single computing device or distributed over a network composed of multiple computing devices. Alternatively, they may be implemented by program code executable by the computing device, such that they may be stored in the storage device by the computing device, or they may be separately fabricated into individual integrated circuit modules, or they may be Multiple modules or steps are made into a single integrated circuit module. Thus, the invention is not limited to any specific combination of hardware and software. The above is only the preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes can be made to the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the scope of the present invention are intended to be included within the scope of the present invention.

Claims

权 利 要 求 书 Claim
1. 一种移动存储扩展卡， 其特征在于， 包括：  A mobile storage expansion card, comprising:
外围部件互连扩展接口转通用串行总线 3.0接口桥接芯片； 外围部件互连扩展接口， 与所述桥接芯片的第一端口相连接； 存储器， 与所述桥接芯片的第二端口相连接； 以及  a peripheral component interconnect extension interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnect extension interface coupled to the first port of the bridge chip; a memory coupled to the second port of the bridge chip;
第一通用串行总线 3.0接口， 与所述存储器相连接。  A first universal serial bus 3.0 interface is coupled to the memory.
2. 根据权利要求 1所述的移动存储扩展卡， 其特征在于， 还包括： 2. The mobile storage expansion card according to claim 1, further comprising:
选通开关；  Gating switch
其中， 所述存储器经由所述选通开关与所述桥接芯片的第二端口相 连接， 所述第一通用串行总线 3.0接口经由所述选通开关与所述存储器 相连接。  The memory is connected to the second port of the bridge chip via the strobe switch, and the first universal serial bus 3.0 interface is connected to the memory via the strobe switch.
3. 根据权利要求 2所述的移动存储扩展卡， 其特征在于， 所述选通开关用 于对以下通信路径进行选通： 3. The mobile storage expansion card of claim 2, wherein the gating switch is for gating the following communication paths:
所述第二通用串行总线 3.0接口对所述存储器的访问路径； 以及 所述外围部件互连扩展接口经由所述桥接芯片对所述存储器的访问 路径。  An access path of the second universal serial bus 3.0 interface to the memory; and an access path of the peripheral component interconnect extension interface to the memory via the bridge chip.
4. 根据权利要求 2所述的移动存储扩展卡， 其特征在于， 所述存储器连接 至所述选通开关的第一端， 所述第一通用串行总线 3.0接口连接至所述 选通开关的第二端， 所述桥接芯片的第二端口连接至所述选通开关的第 三端。 4. The mobile storage expansion card according to claim 2, wherein the memory is connected to a first end of the strobe switch, and the first universal serial bus 3.0 interface is connected to the strobe switch The second end of the bridge chip is connected to the third end of the gating switch.
5. 根据权利要求 2所述的移动存储扩展卡， 其特征在于， 所述选通开关用 于根据电平信号对所述通信路径进行选通。 5. The mobile storage expansion card of claim 2, wherein the gating switch is for gating the communication path based on a level signal.
6. 根据权利要求 1至 5中任一项所述的移动存储扩展卡， 其特征在于， 还 包括： The mobile storage expansion card according to any one of claims 1 to 5, further comprising:
第二通用串行总线 3.0接口， 与所述桥接芯片的第三端口相连接。 一种移动存储扩展卡， 其特征在于， 包括： A second universal serial bus 3.0 interface is coupled to the third port of the bridge chip. A mobile storage expansion card, comprising:
外围部件互连扩展接口转通用串行总线 3.0接口桥接芯片； 外围部件互连扩展接口， 与所述桥接芯片的第一端口相连接； 通用串行总线 3.0接口， 与所述桥接芯片的第二端口相连接； 以及 存储器， 连接于所述桥接芯片的第三端口。 一种计算机， 其特征在于， 具有权利要求 1至 7中任一项所述的移动存 储扩展卡。  a peripheral component interconnect extension interface to a universal serial bus 3.0 interface bridge chip; a peripheral component interconnect extension interface connected to the first port of the bridge chip; a universal serial bus 3.0 interface, and a second of the bridge chip The port is connected; and a memory is connected to the third port of the bridge chip. A computer characterized by comprising the mobile storage expansion card according to any one of claims 1 to 7.
PCT/CN2011/077168 2010-10-13 2011-07-14 Mobile memory express card and computer WO2012048598A1 (en)

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