TWI260553B - Virtual universal serial bus card reader having peripheral component interchange express bus - Google Patents

Abstract

The present invention relates to a virtual universal serial bus (USB) card reader having peripheral component interchange express (PCI Express) bus. The card reader includes a microprocessor connected with a PCI express bus connection interface and a memory card connection interface, the microprocessor has a memory card interface, a PCI express bus interface and a virtual USB module, and the virtual USB module contains a virtual host end having a USB interface and a virtual device end; when the host end issue a store or a read command to a memory card connected with the card reader, the command will be transmitted to the virtual USB module and is completed in the virtual USB module; while transmitting data in the memory card, a transmission speed provided by the PCI express bus can be attained, and the host end will treat the card reader as a USB device instead of a pure PCI express bus device.

Description

Il one ~ one, .Λ ~ 'one W one, is outside rw*^»*»**·*··,仏"V. I26i5S3t " ! -^- 95. δ, 1 y IX, invention description : [Technical Field to Which the Invention Is Affiliated]

The invention provides a virtual universal serial bus interface (us B) item card machine with a high-speed peripheral component internal connection busbar (p CI Express), in particular, the use of a fast-speed peripheral component internal connection busbar (p CIEX press) ) A virtual universal serial bus interface (USB) card reader as a transmission interface.

[Prior Art] Press, today's computer technology is growing at an ever-changing speed, and the development trend of its computer is also moving toward the direction of computing power and speed, and because the current CPU (CPU) clock is too fast, others The transmission speed of peripheral devices can't keep up with the processing speed of the central processing unit. Therefore, even if the performance of the central processing unit continues to improve, it will not be much improved. This is because the performance of the computer depends on the whole system and must be The improvement of the entire computer architecture can make the performance of the central processor to the extreme. However, the speed of transmitting data depends on the transmission speed of the bus. In order to improve the performance of the computer, the relevant operators have no improvement in the transmission speed of the bus, such as the integrated drive electronic interface (丨DE) connected to the hard disk drive. The transmission speed has reached 16 0MB/s, the network route has been upgraded from 1〇Mb/S to lGb/s, and the serialized RS- 2 3 2 has been transferred to the universal serial bus (USB) with a transmission rate of 48 0Mb/s. Replaced, and currently passed

The transmission rate of up to 13 3MB/s peripheral component busbar (pc I) increases the transmission rate of its unidirectional channel to 25OMB/s, making it a new generation of high-speed peripheral component connection bus (P CI EX press). Moreover, the high-speed peripheral component connection bus (p Cl Express) provides a hot-swap control function, so the high-speed peripheral component connection bus (PCIEXPress) is more acceptable to the user. Moreover, since the advent of flash memory, it has replaced the EEP RQM or battery-powered memory in many portable devices with the fascinating characteristics of low energy consumption, non-volatility, shock resistance and high storage density. At present, the semiconductor technology is getting better in the day, and the memory density and transmission speed of the memory are faster and more leaps and bounds. Therefore, in many applications, the flash memory can replace the hard disk drive and other storage, fine, currently _ _Photographed by = remember card factor camera, PDA, mobile phone and other such electronic products have become an indispensable product for the public, so that the memory card's _ quantity and type are also on the eve, and most of the memory card Use the universal serial bus (usb) or the whole two: electronic interface "DE) as the transmission interface, and the universal serial communication SB) and the integrated drive electronic medium rate only her bAH two transmission speed keep up 3 The transmission rate cannot be Hos t. The memory will be limited by the host side (t) of the universal serial bus (USB) or the integrated driver electronic interface (i DE), but it cannot reach its own maximum. Good shape.竿 录 竿 竿 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 四 某 某 某 某 某 某 某 某 某 某 某 某 某 某 某 某 某 某 某 某 某Most of the work required by the formula, so the application of the specific miscellaneous miscellaneous ^ Tian · social Wang rectified software will communicate with the trrrr on the host side, so the peripheral equipment must have a clothing plane, can be executed by the host The instructions from the end. In order to make the memory card use the faster transmission bus for t transmission and reading, the peak of the plum side |, _ the industry's related honest dealers want to study the direction of improvement. ^ [Summary of the Invention] _ Therefore, inventors in view of the above-mentioned problems and deficiencies, are collecting relevant information from the eve party and Kao Li 'and the series of years of experience in this line (four) product 'through continuous trial and modification, began to design The invention patent of the virtual universal serial bus interface (USB) card reader with a high-speed peripheral component connected to the PCI bus. The main purpose of this is to connect the PCI Express as the transmission interface between the host and the card reader, and the card reader has a virtual universal serial port that can communicate with the host. The busbar module enables the host to access the data of the memory card through the card reader to achieve the best transmission rate and the characteristics of the universal ship channel interface. According to the above purpose, the Leica machine has micro control. The microcontroller is respectively connected with a high-speed peripheral element (4) connected to the connection block of the high-speed peripheral component set on the host end, and the connection interface of the rider and the pin connection interface for the memory card connection, the micro control|| The pin interface, the high-speed peripheral 70-connected bus interface and the virtual universal serial bus module, so that when the host side puts a note on the card-link connection, the instruction will transmit the virtual The serial bus module is used, and the virtual universal serial bus is used to complete the age, and the data of the memory card connected to the card reader is based on the age of the micro (four) riding set card interface and high speed periphery The in-component connection bus (PCI Express) interface converts the bedding material into a bedding format that can be accepted by the serial card or the high-speed peripheral component. The re-transmission to the host or memory card enables the domain to pass through the virtual The serial bus module is used to issue instructions for accessing the data to the card reader, and the data can be transferred to the edge of the transfer speed of the mobile phone during transmission, so that the card reader can reach the maximum transfer rate, and The characteristics of the forest bus interface. [Embodiment] In order to achieve the above object and effect, the technical means and the structure of the present invention will be described in detail with reference to the preferred embodiments of the present invention. Referring to the first embodiment, which is a block diagram of a preferred embodiment of the present invention, it can be clearly seen from the figure that the card reader m on the side has a high-speed peripheral component connection bus (PCI Express) connection interface H. The microcontroller 12 and the memory card connection interface 13; wherein: the high-speed peripheral component connection busbar (PCJE) connection interface 1 is a high-speed peripheral component connection busbar (for connection to the host terminal 2) ( PCI Express) 2 1. The new controller 12 has a memory card interface 121, a high-speed peripheral component connection bus (PCI Express) interface 122, and a virtual universal serial bus interface module (USB Module) 1 2 3 'and a virtual universal serial convergence. The interface module (usb M〇du 1 e ) 1 2 3 has a serial host interface (USB Host) 1231 and a universal serial bus interface device (USB Device) 1232, and the micro control The device 12 is connected to the speed-up peripheral component bus bar (PCI Express

The connection interface 1 1 and the virtual universal serial bus interface module (U $ B M〇 d u 1 e ) 1 2 3 is not an entity, but a fictitious body simulated by the stalker blade. The memory card is connected to the interface! 3 is connected to the microcontroller 2, and the memory card connection interface 13 is for the memory card 3 to be connected.

The 8th speed peripheral component of the field card machine 1 is connected to the busbar (pc 1 Expr e s s) connection interface 1 i is connected to the high speed peripheral component connection busbar set by the host terminal 2 (P C J E

At 21 o'clock, the microcontroller 2 of the card reader 1 announces that the card reader 1 is a host of the Wancai bus interface interface, so that the host terminal 2 is connected by a high-speed peripheral component. Busbar (p CJ

Express) architecture to communicate with the microcontroller 12, but will assume that the microcontroller 12 is a host-side serial interface, and when the card 3 is connected to the play interface 13, the host 2 When the memory card 3 releases the storage command, the command is the universal serial bus interface interface set by the virtual universal serial bus interface module (USB Module) 123 which is first transmitted to the microcontroller i 2 U s B Host 1231, and the universal serial bus interface host (usb)

Host) 1231 will send this command to the universal serial bus interface device (USB Devi") 1232, and the command is completed by the universal serial interface device (USB Device) 1232. At this time, the host terminal 2 The data is first transmitted to the microcontroller 12 via the high-speed peripheral component connection bus (PCI Express) 21 and the high-speed peripheral component connection bus (PCI Express) connection interface, and the memory set by the microcontroller 12 The card interface worker 21 converts the data into a data format acceptable to the memory card 3, and stores it in the memory card 3. Yu

Moreover, when the host terminal 2 wants to read the data stored in the memory card 3, the universal string ship interface interface command is sent to the microcontroller, and the virtual universal serial bus interface module (USB) Module) 3) Set the serial bus interface host (USB η 〇st ) 12 31, and the universal serial bus interface host (USB Η 〇st ) 1 2 3 1 will This command is transmitted to the serial device interface device (USB Device) 1 2 3 2, and is completed by the universal serial bus interface device (USB Device) 1232. The data is transmitted to the microcontroller 12' and the high speed peripheral components set by the microcontroller 12 are connected to the busbar (p

Cl Express) interface 丄 2 2 will convert this data into a high-speed peripheral component connection bus (PC I Exp ress) 2 丄 month b enough to connect X format, and then through the high-speed peripheral components connected to the bus (p ◦ I The Express interface 11 and the high-speed peripheral component connection PCI/pull row (PCI Express) 21 are transferred to the host terminal 2. It can be seen from the above that when the host terminal 2 purchases or stores the memory card 3 connected to the card reader ,, the money is directly read or written from the memory card 3 through the microcontroller 12 and is read or The stored command is a universal serial bus interface host (USB Host) 1231 and a universal serial bus interface device (USB) set by the virtual universal serial interface module (USB Module) 123 (USB) Device) 12 3 2 is completed, therefore, the host terminal 2 can recognize that the card reader is a universal serial bus interface card reader connected to the busbar (PCl Express) interface in a high-speed peripheral component. Moreover, the memory card interface 12 1 can be a C F memory card interface, an MSB memory card interface, an XD memory card interface, a § μ memory card interface, a memory card interface or an S D memory card interface. In addition, the memory card connection interface 13 may be one or more. Referring to the second figure, it is a schematic diagram of the transmission data in the preferred embodiment of the present invention. It can be clearly seen from the figure that the host side 2 and the card reader 1 can be a set of simplex in the physical layer for transmitting data. The channel 2 ii constitutes a transmitting end (TX) and a receiving end (r X), and the simplex channel 21 1 can also use one or more sets. Therefore, the virtual universal serial bus interface (usb) card reader with a high-speed peripheral component connected bus bar (p CIEX press) is a technology that can improve the conventional use. The present invention is to use a card reader. The universal serial bus interface host and the universal serial bus interface device are arranged to execute the instructions issued by the host end, and the high-speed peripheral components are connected to the PCI Express as the host side. Card reader 126 126

The transmission interface between the two interfaces allows the card to reproduce the transmission rate provided by the connected bus in the peripheral device, so that the card machine can achieve the optimal transmission rate. The above is a description of a preferred embodiment of the present invention, and it is only necessary to implement the scope of the invention. Modifications are intended to be included in the scope of the patents covered by the present invention. The virtual universal serial bus interface (Us B) card reader with the high-speed peripheral components connected to the bus bar (p CI ΕχΡ ress) of the present invention has a remarkable effect on the use of the present invention. Novelty, creative and progressive patent elements, 提出 apply in accordance with the law, and hope that the trial committee will grant the case as soon as possible to protect the inventor’s hard work. If there is any doubt in the bureau, please do not hesitate to give instructions to the inventor. Strive to cooperate, the real sense of virtue.

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I260553J The first figure The second figure [Simplified description of the drawings] is a block diagram of a preferred embodiment of the present invention. Schematic diagram of the preferred embodiment of the present invention for transmitting data [Description of main component symbols] 1. Card reader

1 1. High-speed peripheral components connected to the busbar (P CI

Express) connection interface _ 12, microcontroller 121, memory card interface 12 2, high-speed peripheral components connected to the bus (p cI Express) interface

12 3, virtual universal serial bus interface module (USB

Module) 1231, universal serial bus interface host (USB Ho s t) · 1 2 3 2, universal serial bus interface device (u S B Device) 13, memory card connection interface 2, host

21, high-speed peripheral components connected to the busbar (p cI 14 1260551

L...J.year

95. 5. I

Express 2 1 1. Simplex channel Memory card

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Claims (1)

126055_."Η:: (4)! Ten, the scope of application for patents·· 1. A virtual universal serial bus interface (usb) card reader with high-speed peripheral components connected bus (p cI Express), the card reader has a microcontroller, memory The card connection interface and the high-speed peripheral component are connected to the busbar connection interface; wherein: the microcontroller has a pin interface for converting data into a memory card format or a high-speed peripheral component connection busbar format and a high-speed peripheral component connection sink I a serial interface, and a virtual universal serial bus module capable of receiving instructions issued by the host end, and the virtual universal serial bus interface module is configured to receive a universal _ column bus interface interface The omni-directional serial bus and the master terminal of the command and the universal serial bus interface device device capable of completing the instruction of the serial bus interface interface; the memory card serial age is mixed with micro (four) ^, domain record The pin connection interface is for a memory card connection; The high-speed peripheral component internal connection contact interface is a high-speed peripheral component connection busbar that can be connected to the host end, and the high-speed peripheral component connection busbar connection interface is connected to the microcontroller, thereby being the host end When the storage or item picks up the needle of the serial connection, the microcontroller of the card reader declares the card reader as a universal serial bus and the host end releases it. The universal serial bus interface interface command is the virtual virtual universal serial bus interface module. 峨 , , 蝴 蝴 蝴 蝴 蝴 = = = = = = = = = = = = = = = = = = = = = = = = = = = = = • ug ug ug ug ug ug By means of the memory card interface set by the microcontroller and the connection bus interface in the 7-speed peripheral, the data is converted into a data format accepted by the memory card or the high-speed peripheral component, and then transmitted to the host terminal or Memory card storage. 2. For example, apply for a patent system! The virtual universal serial bus interface (u SB) of the high-speed if edge element (four) connection bus (PCI Express) described in the item is a physical machine layer in which the host side and the storage device are in a physical layer for transmitting data. The simplex channel forms the transmitting end (TX) and the receiving end (RX). 3, for example, a virtual universal serial bus interface SB) card reader with a high-speed peripheral component connection bus (PCI Express) as described in claim 2, wherein the simple channel can be a group or - above the group. 4, for example, the virtual universal serial bus interface SB) card reader with a high-speed peripheral component connection bus (PCI Express) as described in the patent scope 帛1, wherein the memory card connection interface can be one or More than one. 5For example, the virtual universal serial bus interface (u SB) card with the high-speed peripheral component called the PCI Express is the cF. The memory card interface can be cF. Memory card interface. 6 such as transit her circumference! The virtual universal serial bus interface (u S B) card-receiving device of the high-speed serial connection bus (PCI Exp r s s), wherein the memory card interface can memorize the card interface. 7High-speed peripheral components called the busbar as described in item 1 of the μ μ patent g. (PCI Express) virtual universal serial bus interface (U S B ) card reader, wherein the memory card interface can be an X D memory card interface or an S Μ memory card interface. 8. A virtual universal serial bus interface (USB) card reader with a high speed peripheral component connection bus (PCI Express) as claimed in claim 1, wherein the memory card interface can be an SD memory card. Interface or Μ MC memory card interface. • 9. A virtual universal serial bus interface (USB) card reader with a high-speed peripheral component interconnect bus (PCI Express) as described in claim 1, wherein the virtual universal serial bus The interface module is not an entity, but a fictitious body that is simulated by the designer using a firmware program. 18 Form change 1 nr 1 Λ ί Γ ¥α % 引11, pattern: 19 VII. Designated representative map: (1) The representative representative of the case is: the first picture. (2) The symbol of the representative figure is briefly described as follows: 1. Card reader 1 1. High-speed peripheral component connection bus (PCI Express) connection interface 1 2. Microcontroller 121, memory card interface 12 2. High-speed peripheral components Internal connection bus (P CI Express) interface 12 3, virtual universal serial bus interface module (USB Module) 1 2 31, universal serial bus interface host (USB Ho 1 2 3 2,000 Use the serial bus interface device terminal (USB Device) 13. Memory card connection interface 2, host terminal 21, high-speed peripheral component connection bus (P CI Express) 3. Memory card 8. If there is a chemical formula in this case, please reveal The chemical formula that best shows the characteristics of the invention: