JP3090766U - Compact Flash memory card with serial bus interface - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To enable a CF card to directly exchange data files with a host computer of a data processing system without requiring equipment of an unrated rating and to be used as a peripheral storage device of the host computer. . A compact flash (registered trademark) memory card having a serial bus interface, comprising at least one of a CF-ATA interface, a PCMCIA interface, and a True IDE interface (40), and further comprising a host through a cable. It has at least one serial bus interface (50) that can be connected to a computer.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a storage device for a digital product, and in particular, to a compact flash (registered trademark) memory card (CF / CF + card: hereinafter referred to as “CF / CF + card”) that conforms to the technical standard of the CFA (CompactFlash Association). Specifically, it relates to a CF card having a serial bus interface.

[0002]

[Prior art]

 With the rapid development of electronic technology, various daily miniaturized digital products such as digital cameras, hand-held personal computers, electronic notebooks, notebook computers, digital video cameras, MP3 stereos, etc. are being widely used. In fact, the data storage technology used in these digital products is evolving rapidly. CF cards are a type of memory card designed based on flash memory technology, and have become increasingly mobile due to their outstanding performance, including large memory capacity, fast writing speed, and low power consumption.・ Memory products are becoming mainstream. For example, a hand-held personal computer and electronic notebook that use a built-in OS and are small, sophisticated and easy to carry, use a CF card, so they can be plugged in and out at any time, and can be carried around. At the same time, large amounts of files and data can be stored, and data files can be exchanged between different electronic devices via CF cards.

[0003]

[Problems to be solved by the invention]

 However, the use of CF cards is still far from convenient. A CF card can be used on a notebook PC for the first time through a dedicated CF card adapter (such as a PCMCIA CF card adapter), and can also be used on a desktop PC for the first time through a dedicated CF card reader / writer (such as a USB CF card reader). It can be used in

Therefore, the user cannot directly store files and data in the CF card in the personal computer, and cannot copy files and data in the personal computer into the CF card. In addition, when a user uses a portable electronic device while away from home, the user must always carry a dedicated adapter or a read / write device, which adds extra burden and expense.

When the card reader is accidentally lost or damaged, the user may upload the contents of the CF card to the host computer or download the contents from the host computer to the CF card. It was not possible, and there were many inconveniences in use.

In order to provide the user with further convenience, in particular, a new technology is used to enable easy and quick interchange and transfer of data and files between electronic devices and realize a seamless connection. Therefore, it is necessary to simplify the use of CF cards and at the same time reduce capital investment.

[0007] An object of the present invention is to improve the structure of a CF card, make the CF card directly compatible with a host computer of a data processing system without requiring equipment that is not rated, and to store data in a peripheral storage device of the host computer. So that it can be used as

[0008]

[Means for Solving the Problems]

 The present invention is a CompactFlash (registered trademark) memory card (CF / CF + card) that conforms to the CFA technical standards. It has a CF-ATA interface, a PCMCIA interface, or a True IDE interface, and at least one serial card. It has a bus interface, and the serial bus interface is set on the end face of the above-mentioned CompactFlash (registered trademark) memory card on which the CF-ATA interface, the PCMCIA interface, or the True IDE interface is not provided.

The above-mentioned serial bus interface can be a USB (Universal Serial Bus) interface, and the CompactFlash (registered trademark) memory card is connected to the USB-IF (USB Implementers Forum: USB) through the USB interface. It supports the USB Mass Storage protocol recommended by the user forum. The serial bus interface described above can also be an IEEE 1394 interface or two types of interfaces, USB and IEEE 1394, and the two types of USB and IEEE 1394 interfaces are CF-ATA interface, PCMCIA interface, or True IDE. It is set on the same end face where no interface is provided or on a different end face.

[0010] The compact flash memory card according to the present invention also has a mechanical or electronic write protect switch for authorizing or prohibiting writing to data. It is set on the end face that does not have the CF-ATA interface, PCMCIA interface, or True IDE interface. In addition, the function of this switch is write protection, which protects data and files stored in the card and prevents such data and files from being accidentally deleted, modified, or infected with a virus.

The CompactFlash® memory card according to the present invention further has an indicator lamp for displaying a read / write state and a connection state, and the indicator lamp is provided on a plane having two large areas or other end faces. Set above.

[0012] The compact flash memory card according to the present invention includes a flash memory child module, a CF card interface controller module, a serial bus interface controller module, a CF-ATA interface, and a PCMCIA interface. Or a true IDE interface and a serial bus interface, and the CF card interface controller module connects to a flash memory child module and a serial bus interface controller module, respectively. CF card interface The controller module also connects to an electronic device with a corresponding interface via a CF-ATA interface, PCMCIA interface, or True IDE interface. The serial bus interface controller module connects to the host computer system via the serial bus interface. The connections described above support all the two-way flow of signals and data.

When the CompactFlash® memory card according to the present invention employs a USB interface, a flash memory child module, a CF card interface controller module, a USB bus interface control / memory controller module, a CF card -Includes ATA interface, PCMCIA interface, or True IDE interface and USB interface. The CF card interface controller module is connected to the flash memory module and the USB bus interface control memory controller module respectively. The CF card interface controller module also connects to an electronic device with a corresponding interface via a CF-ATA interface, PCM CIA interface, or True IDE interface. The USB bus interface control / memory controller module connects to the host computer system via the USB interface. All of the above connections support bidirectional flow of data and signals.

When the IEEE 1394 interface is adopted in the compact flash memory card according to the present invention, a flash memory child module, a CF card interface controller module, an IEEE 1394 bus interface control, a memory controller module, a CF -Includes ATA interface, PCMCIA interface, or True IDE interface and IEEE1394 interface. The CF card / interface controller module is connected to the flash memory module and the IEEE1394 bus interface control / memory controller module, respectively. The CF card interface controller module also connects to an electronic device having a corresponding interface via a CF-ATA interface, a PCMCIA interface, or a True IDE interface. The IEEE 1394 bus, interface control and memory controller modules are connected to the host computer system via the IEEE 1394 interface. All of the above connections support bidirectional data and signal flow.

According to the present invention, through the improvement of the CF card structure and the addition of a serial bus interface to a general CF card, the CF card does not require other equipment, and requires only one cable. It enables direct compatibility of data files with computers. In addition, it can be used as a peripheral storage device for the host computer, which not only makes it easier for users to use, but also expands the range and functions of the CF card, making it easy and quick to transfer data between electronic devices. It can achieve high compatibility and transfer, simplify the use of CF cards, and reduce capital investment.

[0016]

[Embodiment of the invention]

 Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings.

FIG. 1 is a diagram showing a universal function box (functional block) of the CF card according to the present invention. As shown in FIG. 1, the CF card having a serial bus interface includes a flash memory module 10, a controller module, a CF-ATA interface, or a PCMCIA interface, or a True IDE interface 40 and a serial bus interface 50. , A write protect switch / status indicator lamp module 60. The controller module includes a CF card / interface control / memory controller module 20 and a serial bus / interface control / memory controller module 30. The CF card interface control / memory controller module 20 is connected to the flash memory module 10 and the serial bus interface control / memory controller module 30, respectively. The serial bus interface controller 30 is connected to the write protect switch / state indicator lamp module 60. In the use state, it is connected to an electronic device having a corresponding interface through the CF-ATA interface, PCMCIA interface, or True IDE interface 40. The serial bus interface control / memory controller module 30 connects to the host computer system through the serial bus interface 50. These connections support all bidirectional data and signal flows.

In the present invention, the CF card, which is a storage device having a serial bus interface, is connected to a variety of electronic devices (a hand-held personal computer, a digital personal computer, and the like) through a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40. Camera, MP3, etc.) to transfer and store data and information. By connecting to the host computer through the serial bus interface 50 and making it an external storage disk of the host computer, the host computer can directly read and write data on the disk.

The present invention also has a mechanical or electronic write protect switch, which has a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40. It can also be set on other end faces, and its function is to approve or prohibit data writing. This write-protect switch allows the CF card of the present invention to be in a write-protected state, protects data and files stored in the card, and deletes, modifies, and infects these data and files by mistake. Can be prevented. This switch can be a surface SPDT function switch or a photoelectric switch that responds to photoelectric.

The present invention also has an indicator lamp, which can be set on a plane having two large areas of the CF card, and can be set on the other end face. It displays the read / write status and connection status of the CF card using it. For example, if the indicator light is flashing, it indicates that data is currently being transferred or read / written.

The function of the flash memory child module 10 is to store data and information received through a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40, or through a serial bus interface 50. Things. This module can store the driver of the present invention and other types of data files.

The CF card / interface control / memory controller module 20 completes the connection between the CF card and the external electronic device by using the existing technology, and also includes a CF-ATA interface or a PCMCIA interface. Alternatively, it decodes, converts, controls, and transmits the True IDE interface 40 protocol. It also completes initialization for the CF-ATA interface, PCMCIA interface, or True IDE interface 40, receives commands and data from external electronic devices, decodes and executes commands, and flashes data. The data is stored in the child module 10 of the flash memory, or data is read from the child module 10 of the flash memory, and the execution result is transmitted to the CF-ATA interface, the PCMCIA interface, or the True IDE interface 40. This returns to the external electronic device.

The serial bus interface control / memory controller module 30 completes the connection between the CF card and the host computer system using existing technologies, and decodes the serial interface protocol. , Convert, control, transfer. Completes initialization and control of the serial bus interface 50, receives commands and data sent from the host computer, decodes and executes commands sent from the host computer, and stores data in flash memory. The data is stored in or read from the child module 10, and the execution result is returned to the host computer via the serial bus interface 50.

The serial bus interface 50 can be a plurality of different serial bus interfaces.

The serial bus interface 50 can be various existing serial bus interfaces, including, but not limited to, a USB interface and an IEEE1394 interface. The serial bus interface 50 can also be an electrical standard for a serial protocol that implements the standard, but its physical size structure is not a standard bus interface, but a single cable when actually used. Via an external electronic device or a standard serial bus interface of the host computer.One end of this cable is an interface plug that matches the physical size structure of the serial bus interface on the CF card. One end is a standard interface plug that matches the physical size structure of a standard serial bus interface on an electronic device or host computer.

FIG. 2 is a function box diagram showing an installation example of the CF card according to the present invention. The semiconductor memory medium employs a flash memory device, and has a flash memory module 10, a controller module, and a CF-module. It includes an ATA interface or a PCMCIA interface, or a True IDE interface 40, a USB interface 51, and a write protect switch / status indicator lamp module 60. The controller module includes a CF card / interface control / memory controller module 20 and a USB (universal serial bus) bus interface control / memory controller module 31. The CF card / interface control / memory control module 20 is connected to the flash memory module 10 and the USB bus interface control / memory control module 31, respectively. The USB bus interface control / memory controller module 31 is connected to the write protect switch / status indicator lamp module 60. In use, the CF card / interface control / memory controller module 20 also connects to an electronic device having a corresponding interface through a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40. . The USB bus interface control / memory controller module 31 connects to the host computer system via the USB interface 51. All of the above connections support bidirectional flow of data and signals.

The CF card in this embodiment is connected to various electronic devices (such as a handheld personal computer, a digital camera, and an MP3) via a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40. It can transfer and store data and information. By connecting to the host computer via the USB interface 51 and using it as an external storage disk of the host computer, the host computer can directly read and write data on the disk. At this time, the CF card of this embodiment supports a USB Mass Storage protocol recommended by a USB-IF (USB Implementers Forum) as a USB Mass Storage device. Therefore, this card will be automatically identified by Windows Me, Windows 2000, Windows XP, MAC OS9.X / OSX and Linux.2.4.x operating systems. In other words, there is no need for a driver under these operating systems, which is very convenient for the user to use.

In this embodiment, the serial bus interface employs a USB interface, and the USB interface 51 can be a standard USB interface, for example, a standard mini USB interface ( Mini USB, On-The-Go standard), or other than a standard USB interface. In other words, the USB interface 51 according to this embodiment is such that either the electrical signal, the physical structure and the size conform to the USB standard, or only the electric signal conforms to the USB standard, and the physical structure and size conform to the USB standard. It can be other than.

The flash memory in the flash child module 10 can be a single flash chip or a plurality of flash chips, connected according to existing addressing schemes, It can store the driver of the present invention and various other types of data files.

The USB bus interface control and memory controller module 31 completes the connection with the host computer system, and decodes, converts, controls, and transmits the USB interface protocol. They also complete the initialization and control of the USB interface, receive commands and data sent from the host computer, and decode and execute commands sent from the host computer. The data is stored in the flash slave module 10 or the data is read from the flash slave module 10, and the execution result is returned to the host computer through the USB interface 51.

The USB bus interface control / memory controller module 31 can complete the connection with an external electronic device, and decodes, converts, and converts a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40 protocol. Control, send. It also completes the initialization and control of the CF-ATA interface, PCMCIA interface, or True IDE interface, receives commands and data transmitted from external electronic devices, decodes and executes the commands. The data is stored in the flash child module 10 or the data is read from the flash child module 10, and the execution result is returned to the external electronic device.

In order to complete the functions of the CF card interface control / memory controller module 20 and the USB bus interface control / memory controller module 31, a single chip or a plurality of chips can be used.

FIG. 3 shows another embodiment of the present invention, in which the universal interface adopts the IEEE1394 interface, and the flash slave module 10, the controller module, the CF-ATA interface, or the PCMCIA interface, or It includes a True IDE interface 40, an IEE1394 interface 52, a write protect / switch / status indicator lamp module 60. The controller module includes a CF card / interface control / memory controller module 20 and an IEEE1394 / bus / interface controller / memory controller module 32. The CF card / interface control / memory control module 20 is connected to the flash module 10 and the IEEE1394 / bus / interface control / memory control module 32, respectively, and the IEEE1394 / bus / interface control / memory control module 32 is connected to the It is connected to the write protect switch / status indicator lamp module 60. In the use state, the CF card / interface control / memory controller module 20 is connected to an electronic device having a corresponding interface through a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40. IEEE 1394 bus interface control The memory controller module 32 connects to the host computer system via the IEEE 1394 interface 52. All of the above connections support bidirectional flow of data and signals.

In this embodiment, the flash memory child module / flash module 10 includes one or a plurality of flash chips and is connected according to the existing addressing scheme, and the module includes a driver of the present invention and other drivers. A type of data file can be stored. The IEEE 1394 interface 52 may be a standard IEEE 1394 interface or a non-standard IEEE 1394 interface. In other words, the IEEE 1394 interface 52 of this embodiment is such that either the electrical signal, the physical structure and the size conform to the IEEE 1394 standard, or only the electric signal conforms to the IEEE 1394 standard, and the physical structure and the size are other than the IEEE 1394 standard. It can be.

The IEEE 1394 bus interface control and memory controller module 32 completes the connection with the host computer system and decodes, converts, controls, and transmits the universal interface protocol. They also complete the initialization and control of the IEEE 1394 interface 52, receive commands and data sent from the host computer, and decode and execute commands sent from the host computer. The data is stored in the flash slave module 10 or the data is read from the flash slave module 10, and the execution result is returned to the host computer through the IEEE1394 interface 52.

The IEEE 1394 bus interface control and memory controller module 32 completes connection to external electronic devices, decodes, converts, controls, and decodes a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40 protocol. Send. They also complete the initialization and control of the CF-ATA interface, PCMCIA interface, or True IDE interface 40, receive commands and data sent from external electronic devices, decode and execute commands. The data is stored in the flash slave module 10 or the data is read from the flash slave module 10, and the execution result is returned to the external electronic device.

The IEEE 1394 interface of this embodiment is such that either the electrical signal, the physical structure, and the size conform to the IEEE 1394 standard, or only the electric signal conforms to the IEEE 1394 standard, and the physical structure and the size conform to the IEEE 1394 standard. can do.

When completing the functions of the CF card interface control / memory controller module 20 and the IEEE1394 bus interface control / memory controller module 32, a single chip or a plurality of chips can be used.

FIG. 4 shows another embodiment of the present invention. This kind of CompactFlash® CF memory card has a USB interface and an IEEE1394 interface at the same time, and has a corresponding interface control and memory. It has a control module, whose interface control and memory control module functions can be completed using a single chip or multiple chips. This embodiment includes a flash child module 10, a controller module, a CF-ATA interface, or a PCMCIA interface, or a True IDE interface 40, a USB interface 51, an IEEE 1394 interface 52, and a write protect switch / status indicator lamp child module 60. Is included. The controller module includes a CF card / interface control / memory controller module 20 and a USB / IEEE1394 / bus / interface controller / memory controller module 33. The CF card / interface control / memory control module 20 is connected to the flash module 10 and the USB / IEEE1394 / bus interface control / memory control module 33, respectively. The USB / IEEE1394 / bus / interface control / memory controller module 33 is connected to the write protect switch / status indicator lamp module 60. In use, the CF card interface control / memory controller module 20 is connected to an electronic device having a corresponding interface via a CF-ATA interface, a PCMA interface, or a True IDE interface 40. The USB / IEEE1394 / bus interface control / memory controller module 33 is connected to the host computer through the USB interface 51, or the USB / IEEE1394 / bus interface control / memory controller module 33 is connected to the host computer through the IEEE1394 interface 52. Connect to a computer. All of the above connections support bidirectional data and signal flow.

In this embodiment, the flash memory child module / flash module 10 includes one or a plurality of flash chips, and is connected based on the existing addressing scheme. Type data files can be stored. The USB interface 51 and the IEEE1394 interface 52 can be a standard USB interface and an IEEE1394 interface, for example, a standard mini-USB interface and an IEEE1394 interface, and a non-standard USB interface and an IEEE1394 interface. It can also be a 394 interface. In other words, the IEEE 1394 interface 52 of this embodiment is either an electrical signal, a physical structure, and a size that conform to the IEEE 1394 standard, or only an electrical signal conforms to the IEEE 1394 standard, and the physical structure and size are other than the IEEE 1394 standard. It can be. In the USB interface 51, both the electric signal, the physical structure, and the size conform to the USB standard, or only the electric signal conforms to the USB standard, and the physical structure and size can be other than the USB standard.

The USB / IEEE1394 / bus / interface control / memory controller module 33 completes the connection with the host computer system, and decodes, converts, controls, and transmits the USB interface protocol. They also complete the initialization and control of the USB interface 51 or the IEEE1394 interface 52, receive commands and data sent from the host computer, and decode and execute commands sent from the host computer. The data is stored in the flash slave module 10 or the data is read from the flash slave module 10, and the execution result is returned to the host computer through the USB interface 51 or the IEEE1394 interface 52.

The USB / IEEE1394 / bus interface control / memory controller module 33 completes the connection with an external electronic device, decodes and converts a CF-ATA interface, a PCMCIA interface, or a True IDE interface 40 protocol. , Control, send. They also complete the initialization and control of CF-ATA interface, PCMCIA interface, or True IDE interface, receive commands and data sent from external electronic devices, decode and execute commands. The data is stored in the flash child module 10 or the data is read from the flash child module 10, and the execution result is returned to the external electronic device.

The IEEE 1394 interface according to the present embodiment is configured such that the electrical signal, the physical structure, and the size all conform to the IEEE 1394 standard, or only the electric signal conforms to the IEEE 1394 standard, and the physical structure and the size conform to the IEEE 1394 standard. It can be other than.

FIG. 5 shows a connection to an external electronic device through a CF-ATA interface, a PCMCA interface, or a True IDE interface (40) and a connection to a host computer through a USB interface, as in the embodiment shown in FIG. It is an internal work flowchart at the time. The internal work process includes the following steps.

First step: Determine whether the connection device is on the CF-ATA interface, the PCMCIA interface, the True IDE interface 40, or the USB interface 51.

Second step: When there is a connection device on the CF-ATA interface, PCMCIA interface or True IDE interface 40, the internal operation is the same as that of a standard CF card.

Third step: When there is a connection device on the USB interface, the power is supplied from the USB interface 51, the USB interface is initialized, the USB bus interface control / memory controller module 31 is initialized, and the flash The module module 10 is tested, and the dedicated information on the storage device of the present invention is read from the module module 10.

Fourth step: It is determined whether the request is a data reading request. If the request is for a data read operation, appropriate processing such as converting the logic address to the serial number of the flash chip and the physical address on this flash chip, and skipping damage during flash based on the damage record information, etc. Run. In addition, the data is read from among them, the data is returned, and the process returns to the second step. If the request is not a data read request, it is determined whether the request is a data write operation request.

Fifth step: In the case of a data write operation request, the logic address is converted into the serial number of the flash chip and the physical address on this flash chip, and furthermore, the damage during the flash is determined based on the damage record information. Perform appropriate processing such as skipping. The data is written to the flash memory, and the process returns to the second step. If the request is not a data write operation request, determine whether it is a capacity read request.

Sixth step: If the request is a capacity read request, the storage capacity of the device is returned, and the process returns to the second step. If the request is not a capacity read request, it is determined whether the request is another operation request.

Seventh step: If it is another feasible operation request, the corresponding processing is executed, the processing result and status information are returned, and the procedure returns to the second step. If it is not another feasible operation request, return directly to the second step.

Once the power of the host computer is turned off or the device is removed from the host computer system, the device stops operating, but the information that has already been saved is saved.

FIG. 6 is an outline view (A, B, C, D) of some embodiments of the present invention. The relative positions of the relevant interfaces, indicator lights, and switches are described in the figures. Embodiments A and B have only one type of serial interface, such as a USB interface or an IEEE 1394 interface. Embodiments C and D have two types of serial interfaces, a USB interface and an IEEE1394 interface. All four figures have a CF-ATA interface, a PCMCIA interface, or a True IDE interface, indicator lights and switches, and these interfaces, indicator lights and switches are compatible with Compact Flash® memory cards. It is distributed on four end faces, and this distribution can have different types of combinations, and this combination is not limited to the four types shown in FIG.

FIG. 7 is a circuit diagram of the USB bus interface control / memory controller module 31 in the embodiment shown in FIG. 2, which employs an NT2005A512-LQFP48 chip having 48 pins. Connect the first pin of this chip and the 0.1μF capacitor C1 in series, and then ground. Pins 2-5, 7-10, and 40-48 of this chip are connected to chip U3 in the CF card, interface control, and memory controller module 20 and CF-ATA interface or PCMCIA, respectively, based on the PD serial number. Connect to the connector corresponding to the PD serial number of chip CF-CN1 in the interface or True IDE interface 40. Pins 6, 16, 24 and 33 of this chip are directly grounded and pins 11, 12 and 13 of this chip are CF-ATA interface or PCMCIA interface or CF-CN1 in True IDE interface 40, respectively. Connect to pins 34, 35 and 37 on the chip. The fifteenth pin of this chip is connected to the power supply DVDD and grounded through a 0.1 μF capacitor C8. Connect a 12MHz polarimeter Y1 between pins 16 and 17 of this chip. The GPIO serial numbers on pins 18, 26, 30, 31, and 32 of this chip are used to save dedicated information.

FIG. 8 is a circuit diagram of the USB interface 51 shown in the embodiment of FIG. The interface chip J1 introduces the bus / power supply B-VCC, supplies the power DVDD to the CF card after being filtered by the inductance and the capacitors L1, L2, L12, C15 and C16.

FIG. 9 is a circuit diagram of the flash module 10 shown in the embodiment of FIG. The flash chips U4 and U5 adopt 48-TSOP1-1220F, and the I / O connector supports the HD serial number of chip U3 in the CF card, interface control, and memory controller module 20 based on the HD serial number. Connected to the connector.

FIG. 10 is a circuit diagram of the write protect switch / status indicator lamp child module 60 shown in the embodiment of FIG. The indicator lamp adopts light emitting diode D1 and automatic switch F1, HWP # refers to hardware protection, and SWP # refers to software protection.

FIG. 11 is a circuit diagram of the CF card interface control / memory controller module 20 shown in the embodiment of FIG. The chip U3 adopts F1-8XU2100, this chip is based on PD serial number, USB bus interface control, 2-5, 7-10, 40-48 pin in chip U1 in memory controller module 31 This chip connects to the connector corresponding to the flash chips U4 and U5 in the flash module 10 based on the HD serial number.

FIG. 12 is a circuit diagram of the CF-ATA interface, PCMCIA interface, or True IDE interface 40 of the embodiment as shown in FIG. The chip adopts CF-CN1, which is based on the PD serial number. This chip uses the USB bus, the interface control, the chip U1 in the memory controller module 31, and the CF card, the interface controller, and the chip in the memory controller module 20. Connect to U3.

[Brief description of the drawings]

FIG. 1 illustrates an embodiment using a serial bus interface.

FIG. 2 illustrates an embodiment using a USB interface.

FIG. 3 is a diagram illustrating an embodiment using an IEEE1394 interface.

FIG. 4 is a diagram showing an embodiment using two types of interfaces, USB and IEEE1394.

FIG. 5 is an internal flowchart of the embodiment shown in FIG. 2;

FIG. 6 is an external schematic view of each of the embodiments according to the present invention.

FIG. 7 is a circuit diagram of a USB bus interface control / memory controller module 31 in the embodiment shown in FIG. 2;

FIG. 8 is a circuit diagram of a USB interface 51 in the embodiment shown in FIG.

FIG. 9 is a circuit diagram of the flash memory module 10 in the embodiment shown in FIG. 2;

10 is a circuit diagram of a write protect switch and a status indicator lamp module 60 in the embodiment as shown in FIG.

11 is a circuit diagram of the CF card interface control / memory controller module 20 in the embodiment as shown in FIG.

FIG. 12 shows a CF-ATA in the embodiment as shown in FIG.
Interface, PCMCIA interface, or True
FIG. 3 is a circuit diagram of an IDE interface 40.

[Procedure amendment]

[Submission date] July 30, 2002 (2002.7.3
0)

[Procedure amendment 1]

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[Correction target item name] Claims for utility model registration

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 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Feng Muko, China, Unit 411, 1 building, Hutomi, Hutomi, Fukuda-ku, Shenzhen, China

Claims (10)

[Utility model registration claims] 1. A CF-ATA interface, a PCMCIA interface, and a True IDE interface (40)
A compact flash memory card having at least one of the following: further comprising at least one serial bus interface (50) connectable to a host computer via a cable. Memory card. 2. A mechanical or electronic write protect system.
The compact flash (registered trademark) memory card according to claim 1, further comprising a switch. 3. The compact flash (registered trademark) memory card according to claim 2, further comprising an instruction lamp for displaying a read / write state and a connection state. 4. The serial bus interface according to claim 1,
The compact flash (registered trademark) memory card according to claim 1, which is a USB interface (51), and supports a USB Mass Storage protocol recommended by a USB-IF through the USB interface (51). 5. The serial bus interface according to claim 1,
2. The compact flash (registered trademark) memory card according to claim 1, wherein the memory card is an IEEE1394 interface (52). 6. The compact flash memory card according to claim 1, wherein said serial bus interface comprises a USB and an IEEE 1394 interface. 7. A flash memory child module (10),
It further comprises a controller module, a write protect switch, and a status indicator lamp module (60), wherein the controller module is a CF card interface control memory controller module (20) and a serial bus interface controller memory controller module (30), wherein the CF card / interface control / memory controller module (20) includes a flash memory module (10) and a serial bus interface controller / controller, respectively.
Connected to a memory controller module (30), the serial bus interface control / memory controller module (30) is connected to a write protect switch and a status indicator lamp module (60); The card / interface control / memory controller module (20) is provided with the CF-ATA interface, PCMCIA interface, or True I / O interface.
The serial bus interface control / memory controller module (30) is connected to a host computer system through the serial bus interface (50) through a DE interface (40) and to an electronic device having a corresponding interface. 2. The compact flash memory card according to claim 1, wherein each of the connections supports bidirectional flow of data and signals. 8. A flash memory child module (10),
It further comprises a controller module and a write protect / switch / status indicator lamp module (60), wherein the controller module is a CF card / interface control / memory controller module (20) and a USB bus interface control / memory controller module (3
1), wherein the CF card interface control / memory controller module (20) is connected to a flash memory module (10) and a USB bus interface control / memory controller module (31), respectively.
The B bus interface control / memory controller module (31) is connected to the write protect switch / status indicator lamp module (60), and in use, the CF card interface control / memory controller module (20) Is the CF-ATA interface, PCMCIA interface, or True I
Connecting to an electronic device having a corresponding interface through a DE interface (40); connecting the USB bus interface control and memory controller module (31) to a host computer system through a USB interface (51); 2. The compact flash (registered trademark) memory card according to claim 1, wherein each connection supports bidirectional flow of data and signals. 9. A flash memory child module (10),
It further comprises an IEEE1394 interface (52), and a controller module, wherein the controller module includes a CF card, an interface control and a memory controller module (20), and an IEEE1394.
A bus interface control; a memory controller module (32); the CF card interface control; a memory controller module (20) are respectively a flash memory module (10) and an IEEE1394 bus interface control; A slave module (32), and the IEEE 1394 bus interface control memory controller module (32) is connected to a write protect switch and a status indicator lamp module (60).・ Interface control ・ Memory controller module (20) is the CF-ATA interface, PCMCIA interface or True I
The device is connected to an electronic device having a corresponding interface through a DE interface (40), and the IEEE 1394 bus interface control memory control module (32) is connected to the IEEE 1394 interface (5).
2. The compact flash memory card of claim 1, wherein the memory card is connected to a host computer system through 2), wherein each of the connections supports bidirectional flow of data and signals. 10. A flash memory child module (1)
0), an IEE1394 interface (52), a USB interface (51), and a controller module. The controller module includes a CF card, an interface control / memory controller module (20), and a USB / IEEE
An E1394 bus interface control memory controller module (33) is provided. The CF card interface control memory controller module (20) is a flash memory child module (10) and an IEEE1394 bus controller module.
Interface control / memory controller module (32)
And the USB / IEEE1394 / bus interface control / memory controller module (33) includes a write protect switch and a status indicator lamp module (6).
0), and in the use state, the CF card / interface control / memory controller module (20) is connected to the CF-ATA interface, PCMCIA interface, or True I
The USB / IEEE1394 / bus / interface control / memory controller module (33) is connected to an electronic device having a corresponding interface through the DE interface (40), and is connected to the host through the IEEE1394 interface (52) or the USB interface (51). The compact flash memory card according to claim 1, wherein the memory card is connected to a computer system, and each of the connections supports bidirectional flow of data and signals.