TWI237264B - A multi-function semi-conductor storage device and method for booting a computer using thereof - Google Patents

Abstract

Disclosed is a multi-function semi-conductor storage device and method for booting a computer using the same, which comprises a common interface used to be connected to the host system, a semiconductor storage media module (1) used to store data, and a controller module (2), in which the controller module (2) consists of a common interface control module (21), a microprocessor, and a control module (22). Said semiconductor storage media module is divided into at least two storage spaces, in which one is used to store the specified data relating to said multi-function semi-conductor storage device, and the storage space corresponds to at least one storage disk supporting devices in UFI protocols, SCSI transparent command set protocol, SFF80701 protocol, and etc. This invention also provides the method for data storage in said device, furthermore, the device supports hot plug and play and it is portable.

Description

1237264 Λ_Μ Revised queen number 9011Α7η7 V. Description of the invention (1) [Field of the invention] Device = multi-functional semiconductor storage device using semiconductor storage media and its method for starting the host computer, specifically the interface for k A multi-functional semiconductor connected to a host, [Background of the Invention] A 1 "storage medium is a semiconductor wafer that can store data. The file can accept external write commands and data, and write the data into the device. This type of chip can also accept external read commands to read the data stored on the chip and output the data to the outside; this type of chip also:: commands such as erase, reset, etc. Semiconductor storage media include, but are not: flash memory (EEPROM), EEPROM, FRAM, AM, SRAM, SDRAM, or MRAM. Compared with traditional magnetic and optical media, semiconductor storage media have a smaller size and weight Lightweight, high capacity, high power consumption, low power consumption and other excellent features, and do not require special devices to drive, such as ZL 〇〇114〇81 · 7 "full electronic flash "Residence method and device", discloses an external storage device using flash memory, using a new semiconductor storage medium and a common channel interface, real 7-drive ", a mobile external storage device without external power supply, and can be plugged in with power Plug-and-play, no need to shut down; fast access speed, much larger capacity than Softcompass, 2 small 'portable, + easy to damage; can be used for any support system 1Γ USB (Universal Serial Bus) and ΙΕΕΕ1 394 Data processing flash: ϊ = = The role of the film is getting smaller and smaller, especially when the above-mentioned device and ^ y 啫 device are invented, the exchange of data can be independent of floppy disks -----. But people who use electricity today find that they still cannot do without floppy disks.

Page 4 * 11 · 1237264 ——_ Case No. 9011fi7f) 7_Year Month Day__ V. Description of the invention (2) One of the reasons is that the flash external storage device mentioned above cannot support computer startup. When the computer system is damaged by a virus or infected by a virus, a clean boot disk is required to restart the computer from the BIOS (Basic Input and Output System, Basic Input Output System). The desktop host uses a built-in floppy disk drive for system startup, which increases the size and weight of the host system, and costs. Due to the bulky floppy disk drive, currently mainstream ultra-thin notebook computers do not have a built-in floppy disk drive to reduce size and weight. Nonetheless, its users have to configure expensive USB external floppy disk drives for system startup, which increases user costs and inconveniences. Although current flash memory storage devices such as DiskOnChip can support computer startup, because it is built into the host system, it cannot be hot-plugged and moved. When the host is damaged by a virus infection, the system cannot be started through DiskOnChip, which limits its application scope. . The existing removable semiconductor storage devices can only be used on the driver of the host operating system, and cannot be identified and controlled by the host system's BOS, and therefore cannot be used as system boot devices. Currently, mainstream BIOS vendors can provide support for USB external floppy disk drive startup functions, such as AWARD BIOS; and many mainstream motherboard manufacturers have also adopted the above BIOS, such as ASUS motherboards. This provides the basis for the scale application of the invention. [Objective of the invention] No, to the prior art; 1. The purpose of the present invention is to propose a semi-memory device that simulates and implements the functions of a variety of storage disks and can be used as a mobile startup device for the host system.

Page 5 1237264

Case No. 90116707 V. Description of the invention (3) [Technical content] In order to achieve the above object of the present invention, the present invention provides a multifunctional semiconductor storage device, including: a universal interface for connecting the semiconductor storage medium module with a host, For storing data and a controller module, the controller module includes a universal interface control module and a microprocessor and a control module ^ The semiconductor storage medium module is divided into at least two storage spaces, one of which is The storage space is used to store special information related to the multifunctional semiconductor storage device; the storage space corresponds to at least one storage disk, and the storage disk supports a device class UFI protocol (UFI: USB Floppy Interface), SFF8020I protocol, SFF8〇7〇I agreement, scsi

Transparent Command Set agreement, Reduced Block

Commands (RBC) At least one or more of T1 0 Pro j ec1 1 24 0-D agreement, Z! P disk association M0 disk agreement. As mentioned above, the semiconductor storage medium module is divided into at least one storage space, and the storage space corresponds to at least one storage space. ^ The storage space of the storage disc can be subdivided into data area and dedicated information area. The dedicated information in the dedicated information area includes information related to the storage disc, passwords, and user digital signatures. The semiconductor storage device of the invention can be identified, manufactured, read and written by the host's BI0s. The semiconductor storage medium module can store two programs and operating system programs. The operating system bootloader is loaded into the semiconductor storage medium module as described above to implement the host startup. The π m system is a semiconductor storage device invented, which can store the driver program of the semiconductor storage device in the semiconductor storage medium mode 1 to realize its own I-side. Page 6 Case No. 90116707

1237264 V. Description of the invention (4) Drive-type function The semiconductor storage device of the present invention further includes a write-protection switch. The write-protection switch provides a physical device to the semiconductor storage medium module by means of a switching device, so that The content is not rewritten or erased; the write-proof switch is electrically connected to the microprocessor and the control module. The semiconductor storage device of the present invention further includes an LED indicator, and the LED includes one or more semiconductor storage devices capable of indicating: a connection device, a LED device, a microprocessor, and a control module. The semiconductor memory device 2 is equipped with a cache module in the controller module, and the cache module is a static memory and connection system. > κ The semiconductor storage of the present invention, x. The selection switch may include a storage disk selection switch to make it recognized and controlled by the host; at least one storage disk is selected from the disk, and the invention adopts a unique clock setting, : The layer implements the interface application capabilities of various device-type protocols and memory storage devices. In semiconductor storage media, there are multiple storage disk storage functions. One device supports one or more ^ one or more storage spaces. External floppy disk drives and magnets are used in the same general interface :: function. The present invention completely realizes the complete replacement of the floppy disk drive and storage function in the system, thereby providing the possibility of small volume and heavy denier in the computer body storage device. The semiconducting device of the present invention is pluggable and removable, which can make the performance stable, reliable, and hot enough to effectively reduce the cost of the computer. ', The system is miniaturized, lightweight, and in accordance with the above purpose of the present invention, ± 1 ^ provides a kind based on the above mm page 7 1237264 ^ — _ case number 90116707 month _g_ amendment _ V. Description of the invention ( 5) A data access method for a multifunctional semiconductor storage device, including the following steps: the semiconductor storage device and the host system are connected through, for example, a USB interface or an IEEE 1 394 interface, and the microprocessor and the control module The data accepted through the USB interface or the IEEE 1 394 interface is unpacked in accordance with the CBI transmission protocol, and the floppy disk drive device class UF I command is extracted therefrom, and then the related device class command is executed, and the execution result or status information is in accordance with the CBI agreement mode. Package and return the result to the host through USB interface or IEEE 1 394 interface. A data access method based on the above-mentioned multifunctional semiconductor storage device is also provided, including the following steps: the semiconductor storage device and the host system are connected through, for example, a USB interface or an IEEE 1 394 interface; And the control module complies with the 1 kOn 1 y transmission protocol to unpack the data received from the USB interface or IEEE 1 394 interface, and extract the SCSI Transparent Command Set or SFF8070I or Reduced Block Commands (RBC) TIO Projectl 240-D commands from it. , And execute related commands, and then package the execution results or status information according to the Bulkonly protocol, and return the results to the host system through a USB interface or an IEEE 1 394 interface.

[Preferred Embodiment] The present invention will be further described in detail with reference to the accompanying drawings: FIG. 1 is a general hardware functional block diagram of the present invention. A semiconductor storage device is connected to a host computer through a universal interface connection cable or a connection plug or a wireless connection, including: Semiconductor storage medium module 1, controller module 2, write-on protection

1237264 month revision t number 90] 〖fi7n7 Five 'invention description (6) f Universal interface control module 21, microprocessor and control module 22, cache module 2 3 〇, media ί Π Ϊ storage media module 1 It is composed of one or more semiconductor memories. The semiconductor storage medium may be, but is not limited to, Flash Memory, EEPROM, FRAM, SRAM, dram, S ^ RAM, or MRAM, according to the existing addressing method. Connection, the function of this module is: Ϊ :: Gas semiconductor storage medium module 1 corresponds to one storage space, or is cut into at least two storage spaces. In the kinetic range, shoot through ^ t group of 2 pairs of device initialization, control of the device, data, initialization and control, accept commands from the host and the memory module 1 or read from the semiconductor memory module " Take the data and return the fruit to the host system through the universal interface. Beco will implement the universal interface control module in the controller module 2. Complete the system: connect; and explain, convert, control and transmit the general Interface protocol 糸 甬 (Bluetooth) interface] EEE80.2. Lla interface, IEEEm interface 1 surface, the microprocessor and control module 22 initialize device protocols, simulation and 2 = id, agreement, simulation and realization of the optical disc in the light]: the device class of the J disc drive Η ........... the storage function surface at the time of operation Page 9 V. Description of the invention (7), · Either implement the hard disk device class agreement, can; or the real tree device class exchange = implement / disc storage function; or implement the M0 device class agreement: doubt and implement the ZIP storage function; and can be hot-plugged The deposit agreement that can be used to implement the MG is the UFi agreement, or SFF802. ^ Given storage disc support apparatus, or SCSI Transparent c Cloth or SFF8 Ο 70 I Co

Reduced Ri i r 〇mmand Set agreement, or

Keauced Block Commands (RRr ^ i Tin d ·, set, or ZIp agreement, or detailed association mi0 ⑽⑴㈣ ⑽⑴㈣ association selection switch 4 can select one to save 2 or more. Store discs. Save discs or select multiple at the same time Storage Lit: ϊΐ ::: or multiple storage discs can store micro-types in the device of the present invention to implement the device's own driver function. 楗 The functions of the processor and control module 22 are ·· a · Initializing the semiconductor In the Du SW λΠ storage module 'and detecting the capacity, manufacturer, and quantity of memory chips in the semiconductor memory module; γ two people receive = control commands agreed with the interface, and explain the implementation of these control "commands, Return the execution result to c through the universal interface. Receive the analog storage. This is the 4th force—μ, 仰 关 # 人人 人 — the result is returned to the host system through the universal interface; phase 4 4 «17〇 ^ one is not limited to reading Data, write data, reading equipment, reading equipment capacity, reading equipment capacity, etc .; Bay / Eight • Receipt / Definition of storage disk device class agreement, and explain the implementation related, and then return the execution result to the host System; ^: ", Limited to reading data, writing data, reading equipment resources, reading equipment capacity, etc .; 1237264 θ No. 1 90 " Coffee 7 V. Description of the invention (8) e. Writing data to semiconductor storage devices, 2 m ά; When reading and writing data, the led indicator: When the device is operating, it will detect the write-protection switch. If the butterfly is performing write, it will reject the request and report to the host that the write operation is in a write-protected state. f · Convert the protected address of the actual memory chip on the storage device defined on the host system to the address of the memory chip, and the physical location on the memory chip§ on the microprocessor and control module After group 22, the LED indicator lights up. "The host system establishes a connection. Depending on the storage method of the semiconductor storage medium, the front and back: a data unit of the storage module is deleted. = 部 = :::: Therefore, the function of the controller module 2 of the storage module 3 can be realized by one or more integrated circuits, which can be implemented by a dedicated chip (asi chip (soc), or Firmware single-chip microcomputer. Hand, charge integration as shown in the figure It is an embodiment of the present invention: a hardware functional block diagram of a USB interface flash memory. &Quot; < In this embodiment, a universal interface uses a USB interface, and a semiconductor storage medium uses a flash memory. Includes Flash memory module 11 / controller module 20, write-proof switch 3, storage disk selection switch 4, LED indicator light 5, etc. Among them, the controller module includes a USB universal serial bus interface control module 201, microprocessor and control module 202, SRAM slow I side

Η Page 11 1237264

Memory module 203. The flash memory module η is composed of one or more semiconductor flash memories. It is connected by address. The function of this module is to store the controller module 20 to complete the initialization and control of the initial fSB interface of the device, accept the commands / data sent from the host, interpret and execute the person sent from the host丨 The memory module U may be flashed; :: Retrieve the material, store it in the flash channel, and return it to the host to take the USB module in the controller module. System USB connection, interpretation, conversion, control, transmission_ agreement.

The microprocessor and control module 202 initializes the USB universal serial bus interface control module 201, reads the status of the storage disk selection switch 4, and decides whether to support the floppy disk drive device type agreement based on the status of the switch 4. Including ^ but not limited to UFI, SFF8080 I agreement; or support large-capacity storage disk device type agreement, the agreement includes but is not limited to SFF8070 I, SCSI

Transparent Command Set and Reduced Block Commands (RBC) T10 Projectl240-D agreement. The functions of the processor and the control module 202 include similar functions of the aforementioned microprocessor and the control module 22, such as initializing the flash memory module, and detecting the capacity of the flash chip in the flash memory, Manufacturer and quantity. The microprocessor and control module 202 receives the standard control commands of the USB interface protocol, and interprets and executes these control commands, and returns the execution results to the host system through the USB interface®. These USB standard commands include but are not limited to 1237264 _ case number 90116707 V. Description of the invention (10) Revision GET_STATUS, CLEAR_FEATURE, SET_FEATURE, SET_ADDRESS, GET_DESCRIPTOR, SET_DESCRIPTOR, ET_CONFIGURATION, SET_CONFIGURATION, GET_INTERFACE, SET-INTERFACE, SYNCH_FRAME, etc. The embodiment shown in FIG. 2 has two working states: 1. The state of simulating a floppy disk drive and a magnetic disk function

In this embodiment of the semiconductor memory device of the present invention is in a state of simulating the functions of a floppy disk drive and a magnetic disk, the device supports the UFI protocol of the floppy disk drive device class, and the microprocessor and the control module 202 pass through the CBI transmission protocol and communicate with the host system. USB interface communication, microprocessor and control module 202 comply with the C BI agreement, unpack the data received from the USB interface, extract the floppy disk drive device class UF I command from it, and then execute the relevant device class command. The execution result or status information is packaged according to the CB I protocol, and the result is returned to the host system through the USB interface. The relevant commands of the floppy disk drive device class include, but are not limited to: F〇rmat

Unit 'Inquiry, Start / Stop, Mode Select, Mode Sense' Prevent / Allow Medium Removal, Read (10), Read (12) 'Read Capacity' Read Format Capacity, Request Sense, Rezero Track, Seek (10), Send Diagnostic , Test Unit Ready, Verify,

Write (lO), Write (12), Write and Verify, etc. The following describes the implementation or special features of several main commands in this embodiment of the present invention:

The Inquiry command queries the relevant parameters and configuration information of the device. When setting it it 1: Α ί ^: ’, the driver on the host system or B10 S uses these resources.

Page 13 1237264 to configure the device; the control module quickly returns the device configuration information to the host according to the UFI specifications, and sets the data bit peripherai Device Type (device type) to device 〇

The Mode Sense command allows the device to report the storage media type and device parameters to the host. Among the information reported to the host, there is an information bit called Medlum Type CodeS (Media Type Code). This code determines the capacity and type of the device. The magnetic disk capacity is 144, so the setting code is 0 X 9 6 (hexadecimal).

Read Capacity requests the device to report the capacity of the storage disc. The data returned by the device indicates that the total capacity is 1. 44MB.

Read Format-Capacity allows the host to request the possibility that the storage disc may be formatted. The device responds with only one type, which is 144MB.

Test Unit Ready allows the host to check whether the device is ready, and if it is ready, the device answers as ready.

Read 1 0 requires the device to read the data at a logical address in the storage disk and return the read data to the host system; the control module calculates the logical bit based on the logical address and the capacity of each storage chip The address is located at the crystal = number, the physical address in the chip is ^, and then a read data command and address are sent to the flash memory = chip, read data from the data line of the flash memory chip, and The data is returned to the host system; when the control module transmits the data, the LED indicator 5 will flash. Bayer

Write 10 requires the device to receive data from the host and write the received data to a logical address in the storage disk; the control module first detects the write-protection switch. If it is in a write-protected state, the host's write operation is rejected. report

Page 14 1237264 Revised end number 90116707 V. Description of the invention (12) 2 The fruit switch is not in a write-protected state, and the control module calculates the logical address based on the capacity of the logical μ # & β a 12 The chip is written, the physical address in the B film and a certain address of the block memory chip is written into the ancestor, 1 ″ When the door is N ^ ^ We must first erase the The block where the address is located, but this will destroy the original data. Therefore, you must first output the original stored data of the block address and save it in the Sram cache module ', and then write the required data. The data is written into the VRAM cache module according to the relative address in the block, and then the corresponding module in the flash memory is erased, and then the data block in the SRAM cache module is written into the corresponding flash memory. Block to complete the entire write operation; the control module will cause the LED indicator 5 to flash when receiving and writing data. 'Another working state of the embodiment shown in FIG. 2 is the state of the large-capacity storage disc. The Otani storage disc can be an analog hard disk, or an analog optical disc, or an analog ZIP, or an analog MO. When the embodiment of the semiconductor storage device of the present invention is in the working state of a large-capacity storage disk, the device supports the SFF807 0 I device type protocol, and the microprocessor and the control module 202 communicate with the host system through the USB interface in accordance with the Bui kOnly transmission protocol. The control module 2 〇2 complies with the B u 1 k 0 η 1 y agreement, unpacks the data received from the us B interface, extracts the SFF8070 type I commands from it, and then executes the related commands, and executes the results or status information. Package according to the BulkOnly transmission protocol, and return the result to the host system through the USB interface; SFF80 70 Class I device-related commands include, but are not limited to:

Format Unit, Inquiry ’Mode Select, Mode Sense,

Prevent / Allow Medium Removal, Read (10), -------- ---_ Page 15 1237264 _Case No. 90116707_Year Month_Revision V. Description of the Invention (13)

Read (12), Read Capacity, Read Format Capacities, Request Sense, Seek, Start Stop Unit, Test Unit Ready, Verify, Write (lO), Write (12), Write and Verify, etc. The following describes the implementation or special features of several main commands in this embodiment of the present invention:

The Read Capacity command allows the host to obtain the capacity of the storage disk on the device. The control module obtains the total capacity of the storage module based on the model and number of flash memory chips detected, and subtracts the total capacity from 1.44MB and The space occupied by other dedicated information is the capacity of the large-capacity storage disc, which is returned to the host system.

Read 1 0 requires the device to read the data at a logical address in the storage disk and return the read data to the host system; the control module first adds the logical address to the 1.44MB disk address space According to the new logical address and the capacity of each storage chip, the chip number where the logical address is located, and the physical bit in the chip are sent to read the data command and address, from the material and return the data to the host material. When the LED indicator flashes. Write 10 requires the device to write to a logical switch in the storage disk. If the write operation fails in the write-protected state; if the switch does not have a logical address, add a 1.44MB floppy disk and the capacity address of each storage chip. The flash memory chip sends the data line of the flash memory chip to read the data system, the control module reads and transmits the data host to receive the data, and the received data address, the control module first detects the anti-write , The host rejects the write operation of the host, and reports that it is in a write-protected state. The control module first calculates the address space of the address chip based on the new logical address. Description of the invention (14) f The physical address and block address in the chip; because when writing data to two addresses of the flash memory chip, the block where the address is located must be erased first, but such a It will destroy the original data, so you must first read out the original data stored in the block address and save it to the SRAM cache module.

, Write the required data into the SRAM cache module, and in accordance with the relative address in the block, and then erase the corresponding block in the flash memory, and then the S + RAM cache module The data block is written into the corresponding block in the flash memory to complete the entire write operation; the led indicator 5 flashes when the control module receives and writes data. After the microprocessor and the control module 22 are connected to the host system, the LED indicator 5 turns on. Figure 3 is another embodiment of the semiconductor storage device of the present invention: " IEEE1 394 interface flash memory " hardware functional block diagram. In this embodiment, the general interface uses the IEEE 1 3 94 interface, and the semiconductor storage medium uses Flash memory. Includes flash memory module n, brake module 200, write-protection switch 3, storage disk selection, UD indication ^ 5. The controller module 200 includes iEEE1 3 94 The interface control module 211, the microprocessor and control module 212, and the SRAM cache module 213. The flash memory module 11 is composed of one or more semiconductor flash memory chips, which are connected according to the existing addressing method. Module function information. ~ 廿 Controller module 2 0 0 completes the initialization of the device, the suppression of the device, the initialization and control of the IEEE1394 interface, accepts the commands and information sent from the host, interprets and executes the host Commands sent, data stored in flash memory module 11 or data read from flash memory module '' im Page 17 1237264 __Case No. 90116707__Year Month Day_Amendment_ V. Description of the invention (15) The execution result is returned to the host system through the IEEE 1 394 interface. The IEEE 1 394 interface control module 211 in the controller module establishes a connection with the host system IEEE1 394 and is responsible for the interpretation, conversion, control, and transmission of the IEEE 1 3 94 protocol. The microprocessor and control module 212 is responsible for initializing the IEEE 1 394 interface control module 2 1 1 and reading the status of the storage disk selection switch 4 to determine whether to support the floppy disk drive device protocol. The protocol includes but is not limited to UF I, SFF 8 0 70 I agreement; or support mass storage disk device class agreement, agreement

Including but not limited to the SFF8070 I ’SCSI Transparent Command Set and Reduced Block Coniinands (RBC) T10 Pro jectl240-D protocols. The microprocessor and control module 2 1 2 also initializes the flash memory module and detects the capacity, manufacturer, and quantity of the flash chips in the flash memory; the microprocessor and control module 212 also receives IEEE 1 394 interface protocol standard control commands, and interpret these control commands, and return the execution results to the host system through the IEE E 1 94 interface. The embodiment shown in FIG. 3 has two working states: First, the state of simulating a floppy disk drive and floppy disk function. When the device is in a state of simulating a floppy disk drive and floppy disk function, the device supports the floppy disk drive device class UF! Protocol, the microprocessor and the control module 212 extract the data from the IEEE1 394 interface and extract the floppy disk drive device class UF I command, then execute the relevant device class command, and return the result to the host system through the IEEE1 394 interface; The relevant commands of the floppy drive device class include, but are not limited to: Format Unit, Inquiry,

Start / Stop, Mode Select, Mode Senqp,

Page 18 1237264 _Case No. 90116707 _ Year and month __ V. Description of the invention (16)

Prevent / A11ow Medium Removal, Read (10),

Read (12), Read Capacity, Read Format Capacity, Request Sense, Rezero Track, Seek (10), Send Diagnostic, Test Unit Ready, Verify, Write (10), Write (12), Write and Verify, etc. The following describes the implementation or special features of several main commands in this embodiment of the present invention.

The I nqu iry command queries the relevant parameters and configuration information of the device, and uses the information to configure the device when the device is powered on or retimed. The host system or BIOS uses the information to configure the device; the control module returns the device configuration information in accordance with the UFI specifications. To the host, and set the data bit Peripheral Device Type (Direction Device Type) to Direct — access device 〇

The Mode Sense command allows the device to report the storage media type and device parameters to the host. Among the information reported to the host, there is an information bit called Medium Type Codes. This code determines the capacity and type of the device. The magnetic disk capacity is 144, so the setting code is 0 X 9 6 (hexadecimal).

Read Capacity requests the device to report the capacity of the storage disc. The data returned by the device indicates that the total capacity is 1. 44MB. Λ

Read Capacity allows the host to request the possibility of the formatted capacity of the storage disk. The device is owed a good balance. There is only one type of capacity in order to be formatted, namely 1.44MB. Answer = 2—Let the host detect if the device is ready *, device

Page 19 1237264

Read 1 0 requires the device to read the data at a logical address in the storage disk and return the read data to the host system; the control module calculates the logical address based on the logical address and the capacity of each storage chip The chip 5 tiger located there and the physical address in the chip, and then send a read data command and address to the flash memory, the chip fetches data from the data line items of the flash memory chip, and returns the data To the host system; when the control module reads and transmits data, the LED indicator flashes.

Write 10 requires the device to receive data from the host and write the received data to a logical address in the storage disk; the control module first detects the write-protect switch 'If it is in a write-protected state, the host's write operation is rejected, and Reports a write operation failure; if the switch is not in a write-protected state, the control module calculates the wafer number where the logical address is located, the physical address in the wafer, and the block address based on the logical address and the capacity of each memory chip; Because when writing data to an address of the flash memory chip, the block where the address is located must be erased first, but this will destroy the original data, so the original address of the block address must be saved first. Store the data and save it in the SRAM cache module. Then write the required data to the SRAM cache module according to the relative address in the block, and then erase the corresponding data in the flash memory. Block, and then write the data block in the SRAM cache module to the corresponding block in the flash memory to complete the entire write operation; the control module will make the LED indicator 5 flash when receiving and writing dataAnother working state of the embodiment shown in FIG. 3 is: 2. The state of the large-capacity storage disk. When the device is in the state of the large-capacity storage disk, the device supports SFF80 70 1 device class protocol, microprocessor and control module. 2 12from

Page 20 1237264 Case No. 90116707 Amendment V. Description of the invention (18) The SFF8070I command is extracted from the data received by the IEEE 1 394 interface, and then the relevant command is executed, and the execution result or status letter is passed. The IEEE 1 394 interface returns the result to the host system; SFF80071 related commands include but are not limited to: Format Uni t, Inquiry, Mode Select 5 Mode Sense 5 Prevent / A11ow Medium

Removal ’Read (10)’ Read (12), Read Capacity, Read Format Capacities, Request Sense, Seek, Start Stop Unit, Test Unit Ready, Verify, Write (lO), Write (12), Write and Verify, etc. The following describes the implementation or special features of several major commands, respectively.

The Read Capacity command allows the host to obtain the capacity control module of the storage disk on the device to obtain the total capacity of the storage module based on the model and number of the flash memory chip detected. This total capacity is reduced by 1.44MB and other dedicated The space occupied by the information is the capacity of the large-capacity storage disk, which is returned to the host system.

Read 10 requires the device item to take the data at a logical address in the storage disk and return the read data to the host system; the control module first adds the logical address to the address space of 1.44MB disk , Calculate the chip number where the logical address is located, and the physical address in the chip according to the new logical address and the capacity of each storage chip, and then send a read data command and address to the flash memory chip, Read data from the data line of the flash memory chip 'and return the data to the host system; when the control module reads the data, the LED indicates that the light is off and 5 flashes. W r i t e 1 0 requires the device to receive data from the host, and

IMI Page 21 1237264 Case No. 90116707 V. Description of the invention (19) The data is written to a logical address in the storage disk; the control module first detects the write-protection switch. If it is in the write-protection state, the host's write operation is rejected. And report that the write operation failed; if the switch is not in the write-protected state, the control module first adds the logical address to the address space of 1 · 44MB disk, and calculates the logic based on the new logical address and the capacity of each memory chip The chip number where the address is located, f the physical address in the chip, and the block address; because when writing data to an address of a flash memory chip, the block where the address is located must first be erased 'but In this way, the original data will be destroyed. Therefore, the original stored data of the block address must be read out and stored in the SRAM cache module, and then the required data to be written should be based on the relative address in the block. , Write to the sra, m cache module, then erase the corresponding flash memory memory, and then write the data block in the SRAM cache module to the flash memory to flash :. Write operation; the control module receives and writes the data. LED means that after the control module 212 establishes a connection with the host system, ^: the memory space allocation map for the semiconductor memory module, the entire memory erosion = fN storage spaces, each Each storage space corresponds to one storage: the storage space of the tablet includes a data area and a dedicated storage module for direct storage of the cache module 23 (see Figure-). The entire storage: the storage of the dedicated Beixun area uses Shuang right ^ to store the memory bad block records, user-corruption, including but not limited to flash memory. Figure 5 is the picture: code, digital signature, etc. ---- ^ Working flow chart of the embodiment. 1237264 _Case No. g〇n_j_ 年月 工 工 Ⅴ. Explanation of the invention (20) Step 1 · Connect to the USB interface of the host system, get power from the USB interface, and power on the device; The controller and control module 202 first initializes the microprocessor and the control module 202, including setting various registers, setting the operating frequency, etc. The second step ... the microprocessor and the control module 2 02 The flash memory module is tested to obtain the model, capacity, manufacturer and total number of chips of each memory chip, and the detected results are saved; Step 3: Read the microprocessor and control module 202 Get special information of the storage device, including but not limited to the bad block record table;

Step 4: The microprocessor and the control module 202 initialize the USB interface controller; W Step 5: The microprocessor and the control module 202 receive the USB control command from the host system and execute the corresponding Command, and return the execution result; when the device description command is executed, the control module will detect, the floppy disk drive, and the "mass storage disk" status switch to determine what state the device will be in, that is, what device class the device supports. Protocols and transmission protocols; the control module informs the host of the device type protocols and transmission protocol information currently supported by the device; in the floppy drive state, the device supports UFI device type protocols and CBi transmission type protocols. In the state of “storage disk”, the device supports SFF80 70 I device type agreement and BulkOnly transmission type agreement; Step 6: The host judges whether the storage device is a “floppy disk drive” or a floppy disk drive according to the device type agreement and transmission agreement returned by the device. ,, Mass Storage Disc ". If the device is in the "floppy disk drive" state, the host will send UFI-like device commands to the device according to the CBI transmission protocol;

1237264 Case No. 90116707 V. Description of the invention (21) The device sends SFF8070I device commands; if the device is in the π floppy disk drive " state, the control module will receive UFI commands sent from the host system according to the CBI transmission protocol, and the control module The group will explain the execution of related commands, and the results or status information after the absence of x will be returned to the two host systems according to the CB 丨 transmission protocol format; if the device is in the "mass storage disk" state, the control module will be transmitted according to Bui kOnly The protocol receives the SFF8070 type I command sent from the host system, and the control module will interpret and execute the relevant command. The message will be transmitted in accordance with the format of the transmission protocol in accordance with ΒΙΙ1_1. Unplugging the device will stop the embodiment shown in Figure ^ as a method of using the system boot disk. The following is ;; moving disk as an example. Need to point out 1221 9,8 /; e / 2000 / xp ^ ^ ^. I urge this to be used as a system startup disk on other operating systems. If the device is to be used as a system startup disk, the boot program and system programs are stored in the device as the system startup disk. α below〗 丨 How to make a system boot disk 1 · Start Windows 98 / Me / 2000 / XP to make a cake. State 2. Set the status switch of the storage disc on the device to the "floppy disk drive. The device is connected to the host's USB interface; Page 24 1237264 --1 ^ ,. 90116707 May 5th, May 5th, invention description (22) " ~ --- 4. The relevant driver on the operating system will recognize and operate the Save the disk, a "floppy disk drive" symbol will appear in "My Computer"; Note: The driver provided by the manufacturer should be used under Windows 98, under ", / Windows Me / 20 0 0 / XP You can use the driver that comes with the operating system; 5 · Format the floppy disk into a system boot disk and copy the corresponding system files to the disc; then the system boot disk is completed. After making the Yuancheng system boot disk After that, you can use the device as a system boot disk. Here's how to use it. How to use the system boot disk: 1 · Turn on the power of the host; 2 · Enter the system's B10S settings and check that the system is set for mobile devices' If the setting is not USB F The loppy Disk Drive is a USB external floppy disk drive (the initial system may be Legacy Floppy), and will be changed to a USB Floppy Disk Drive; after the modification, save the modified settings, and exit the BIOS settings, restart the host; 3. At the same time, turn the storage disk status switch on the device to the "floppy disk drive" state, and connect the device to the USB interface of the host; 4. During the BIOS startup process of the host system, the BIOS will identify the storage disk , And read the stored operating system boot and system programs from it, then execute the corresponding programs and load the operating system; 5. System startup is complete. Using method of the large-capacity storage disc in the embodiment shown in FIG. 2

The following uses the USB interface flash memory storage device as a large-capacity storage disk as an example on Windows 98 / Me / 200 0 / XP; it should be noted that this device is not limited to Windows 98 / me / 2000 / XP

Page 25 1237264 Λη Modified case number 90116707 V. Description of the invention (23) The mass storage disk can also be used as a large capacity on other operating systems 1. Start the Windows 98 / Me / 200 0 / XP operating system; 2. Set the storage disk status switch on the device to the “Large-capacity storage disk” status 3. Connect the device to the USB interface of the host computer; the disk driver 4. The relevant driver on the operating system will recognize and operate the storage device. There will be a new one in your computer, “Removable floppy disk,” “Symbol Province”, you need to use the driver provided by the manufacturer under Windows 98, ^ 'You can use the driver that comes with the operating system under the main Windows Me / 2000 / XP. Formula; 5 · Then 'you can do file creation on this large storage disk. Kiss write

Page 26 1237264 _Case No. 90116707_ 年月 日 _Ifi_ Brief Description of the Drawings Figure 1 is a general hardware functional block diagram of the semiconductor storage device of the present invention; Figure 2 is the hardware of the present invention using a USB interface and flash memory Functional block diagram, FIG. 3 is a hardware functional block diagram of the present invention using IEEE 1 394 interface and flash memory, and FIG. 4 is a memory space allocation diagram of the semiconductor storage device of the present invention; FIG. 5 is an embodiment shown in FIG. 2 FIG. 6A, FIG. 6B, FIG. 6C, and FIG. 6D are schematic circuit diagrams of the embodiment shown in FIG.

Page 27

Claims (1)

Amendment 1237264 Case No. 90116707 6. Scope of Patent Application1. A multifunctional semiconductor storage device, including: a universal interface for connecting with the host system, a semiconductor storage medium module (1), for storing data and controlling Controller module (2), the controller module (2) includes a universal interface control module (2 1), a microprocessor and a control module (22) ', characterized in that the semiconductor storage medium module (1) It is divided into at least two storage spaces, and one of the storage spaces is used to store special information related to the multifunctional semiconductor storage device; the storage space corresponds to at least one storage disk, and the storage disk supports a device type UFI At least one or more of a protocol, a SFF8020 I protocol, a SFF8070I protocol, a SCSI Transparent Command Set protocol, a Reduced Block Commands (RBC) TIO Projectl24D-D protocol, a ZIP disc protocol, and a Xian disc protocol. 2 · The multifunctional semiconductor storage device according to item 1 of the scope of patent application, characterized in that one of the storage spaces divided by the semiconductor storage medium module (1) is stored and can be recognized by the BIOS of the host system at power-on And loaded operating system bootstrap and operating system programs. 3. The multifunctional semiconductor storage device according to item 2 of the scope of patent application, characterized in that the operating system boot program and operating system program are used to realize the start of the host system. 4. The multifunctional semiconductor storage device according to item 1 of the scope of patent application, characterized in that the semiconductor storage medium module (1) can store a driver program of the semiconductor storage device. 5. The multifunctional semiconductor storage device according to item 1 of the scope of patent application, characterized in that when the storage disc supports a UFI agreement of the device type, the storage Page 28 1237264 Amendment θ 6. Scope of Patent Claim 6 discs are two-to-two floppy disk drives and floppy disks. 6 · If the scope of the patent application is the bang, which is characterized in that the storage and the multifunctional semiconductor storage device, the storage disk is an analogy, and the support device class SFF8007i agreement, the 7 ^ ^, Yatori storage disk. • According to the scope of the claimed patent, it is characterized by the storage and the described multi-functional semiconductor storage device, one of the disc and the analog M0 disc; Sombe optical disc, analog hard disc, analog ZIP or more 0 8 The scope of the patent application is characterized in that each storage: semiconductor storage device, information area. The two rooms can be further divided into data area and exclusive use. 9. For example, the storage device in item 8 of the patent application scope is characterized in that the at least one driver of the semiconductor storage device is stored in a storage space According to I 0, one of the mass storage devices in item 8 of the scope of the patent application is characterized in that it further includes a storage function (semiconductor), which is used to select at least-the second grave selection switch ( 4 The host system recognizes, controls, and reads and writes. Stores the disc as II. • As one of the mass storage devices in item 8 of the scope of the patent application, it is further characterized by a semi-conductive semi-conductive device. 1 2 • As applied One of the eighth item of the patent scope is the Γ switch (3). The mass storage device is further characterized by a 'Xi function semi-conductive lamp (5), the LED indicator (5) includes a ^ ^ ED Indicate the working status of the semiconductor memory device. Xigu can be used to refer to 1 3 · Multi-functional semiconductor 1 ^ 1 as one of the eighth in the scope of patent application 1 ^ 1 Page 29 1237264 ____ 銮9011 6707_f Month_Day Amendment__ VI. Patent application volume storage device, where the general-purpose interface is USB interface, IEEE 13 94 interface, Bluetooth interface, IrDA infrared interface, HOMRF interface, IEEE802 · 11a and iEEE8〇2.11 One or more of b. 1 4 · The multifunctional semiconductor memory device according to item 13 of the scope of patent application, wherein the universal interface is a USB interface. 1 5 · As described in the scope of patent application The multifunctional semiconductor storage device, wherein the universal interface is an IEEE 1 3 94 interface. 16 · A data access method for a multifunctional semiconductor storage device as described in item 14 of the scope of patent application, including the following steps: The semiconductor storage device and the host system are connected through a USB interface, and the microprocessor and the control module (2 02) unpack the data received through the USB interface in accordance with the CBI transmission protocol, and extract a floppy disk drive therefrom. Device class UF I command, and then execute the relevant device class command, and package the execution result or status information according to the CBI protocol, and return the result to the USB interface. 1 7 · A data access method for a multifunctional semiconductor storage device as described in item 4 of the patent application scope, including the following steps: the microprocessor and the control module (202) comply with the BulkOnly transmission protocol Unpack the data received from the USB interface, and extract the SCSI Transparent Command Set or SFF8070 I or Reduce (i Block Commands (RBC) TIO Projecti 240-D commands), execute the relevant commands, and then execute the results or status The information is packaged according to the BulkOnly protocol, and the result is returned to the host system through a USB interface. 1 8 · — A data access method as described in item 6 of the patent application Page 30 1237264-New York 1 meeting 7__ year month day amendment __ Sixth, the scope of the patent application step includes the microprocessor and control module (202) and also receives from the USB interface in accordance with the BulkOnly transmission protocol Unpack the data from SCSIT ransparent C 〇mmand Set or SFF 8 0 7 0 I or Reduced Block Commands (RBC) TIO Projectl 240-Class D commands' and execute the relevant commands, and then execute the results or status information It is packaged according to the BulkOnly protocol, and the result is returned to the host system through a USB interface. 19 · The data access method of the multifunctional semiconductor storage device according to item 16 of the scope of patent application, further comprising the following steps: After the semiconductor storage device is connected to the host system, the host system queries the connected device Related parameters and configuration information; the host system sets at least one device code and a storage capacity for the connected device; when the host system wants to read data from the semiconductor storage device, the microprocessor and The control module (202) reads the data of the logical address in the storage disc and sends the read data to the host system; at the same time, the module (202) sends the read data to the storage disc Command and send the read data to the host system; when the host system is to write data in the semiconductor storage device, the microprocessor and control module (2 0 2) first according to the instructions of the host system The system calculates the block address where the data to be written is located, and first reads the original data in the block to the cache module (203) and then writes the required data in the block. 20 · The multifunctional semiconductor memory device as described in item 17 of the scope of patent application 1237264 The correction and access method further includes the following steps: After the semiconductor storage device is connected to the host system, the host system queries the related parameters and configuration information of the connected device; the host The system sets at least one device code for the connected device and sets a storage capacity; when the host system wants to read data from the semiconductor storage device 1 'the microprocessor and control module (20 2) read storage The negative material of the logical address in the disk sends the read data to the host system; at the same time, the group (202) sends a read data command to the storage disk and sends the read data to the host system; When the host system is to write in the semiconductor storage device, the microprocessor and the control module (202) first cannot calculate the block address where the data to be written is located according to the instructions of the host system. The original data in the block is read into the cache module (203), and then the required data is stored in the ™. Ma Ru 21 · The multi-functional data access method described in item 8 of the patent application scope, further comprising the following steps: when the semiconductor storage device and the host system query the related parameters of the connected device and configure the host system Set and set the storage capacity for the connected device; when the host system wants to read from the semiconductor storage device, the microprocessor and control module (20 2) read the data of the shell material address in the storage disc Send the read data to the host system / same, logical, f, all After the semiconductor storage device is connected, the host system is information; at least one device code Page 32 1237264 The module (2 0 2) sends a read data command to the storage disk and sends the read data to the host system; when the host system wants to write data in the semiconductor storage device, the processing The controller and control module (202) first calculates the block address of the data to be written according to the instructions of the host system, and first reads the original data in the block into the cache module (203), and then Write the required information in the block. 22 · A data access method for a multifunctional semiconductor storage device as described in item 5 of the patent application scope, including the following steps: the semiconductor storage device and the host system are connected through an IEEE1 394 interface, and the microcomputer The processor and control module (212) will unpack the data received through the IEEE1 394 interface in accordance with the CBI transmission protocol, extract the floppy drive device class UF I command from it, and then execute the relevant device class command, and will execute The result or status information is packaged according to the CBI protocol, and the result is returned to the host system through the IEEE 1 394 interface. 2 3-A data access method for a multifunctional semiconductor storage device as described in item 5 of the patent application scope, including the following steps: The microprocessor and control module (212) also complies with the BulkOnly transmission protocol to Unpack the data received from the IEEE1 394 interface and extract the SCSI Transparent Command Set or SFF8070I or Reduced Block Commands (RBC) TIO Projectl 240-D commands from the IEEE1 394 interface, and execute the relevant commands, and then execute the results or status information according to the BulkOnly agreement The method is packaged, and the result is returned to the host system through the IEEE 1 94 interface. 24 · A data access method as described in item 22 of the scope of patent application, Page 33 1237264 __Case No. 90116707_Revision Year_6. The scope of the patent application step includes the microprocessor and control module (2 1 2) and also the data received from the IEEE1 394 interface in accordance with the BulkOnly transmission protocol. Unpack and extract the SCSI Transparent Command Set or SFF80 70 I or Reduced Block Commands (RBC) TIO Projectl240-D commands' and execute the relevant commands, and then package the execution results or status information according to the BulkOnly protocol, and pass IEEE1 394 The interface returns the results to the host system. 25. The data access method of the multifunctional semiconductor storage device according to item 22 of the scope of patent application, further comprising the following steps: When the semiconductor storage device is connected to the host system, the host system queries related parameters and configuration information of the connected device; the host sets at least one device code and sets a storage capacity for the connected device; when the host wants to When reading data from the semiconductor storage device, the microprocessor and the control module (2 1 2) read the data of the logical address in the storage disk and send the read data to the host system; The module (2 1 2) sends a read data command to the storage disc and sends the read data to the host system; When the host system is to write data in the semiconductor storage device, the processor and the control module (21 2) first calculate the block address where the data to be written is located according to the instruction of the host system. The original data in the block is first read into the cache module (2 1 3), and then the required data is written in the block. 26. Multi-functional semiconductor storage device as described in item 23 of the scope of patent application Page 34 J237264 ____ ^^ 116707_Yan Zhengzheng < Patent application data access method, further including the following steps ... After the semiconductor storage device is connected to the host system, the host system queries the connection Relevant parameters and configuration information of the device; the host sets at least one device code and a storage capacity for the connected device; when the host wants to read data from the semiconductor storage device, the = processor And the control module (2 丨 2) reads the > material of the logical address in the storage disc and sends the read data to the host system; meanwhile, the module (2 1 2) sends the data to the storage The disk sends a read data command and sends the read data to the host system. When the host system is to write data in the semiconductor storage device, the processor and the control module (212) first according to the host system The instruction calculates the block address where the data to be written is located, and first reads the original data in the block into the cache module (21 3), and then writes the required data in the block. 27 • The method for accessing data of a multifunctional semiconductor storage device according to item 24 of the scope of patent application, further comprising the following steps: After the semiconductor storage device is connected to the host system, the host system inquires the connected device. Relevant parameters and configuration information of the host; the host sets at least one device code for the connected device and sets a storage capacity; when the host wants to read data from the semiconductor storage device, the microprocessor and control The module (212) reads the data of the logical address in the storage disc, and sends the read data to the host system; at the same time, the module 1237264 Case No. 901Ifi7D7 VI. Patent application scope Month Θ Correction sent to 2 hosts 12 machines) is to send a read data command to the storage disk and read the data 0 # 二 = The f machine system is to be stored in the semiconductor Write data in the device: the processor and control module (212) first read the block address of the data to be written according to the host system 4 嫱: Γ3, and read it first; required 1: data to In cache one 3), write in the block: 2 Including the method of starting the host computer of the functional semiconductor storage device, including the semiconductor storage device ... The operating system boot program is connected to the beta functional semiconductor storage device through the universal interface After being connected with the host computer control system c and ΐ ΐ it, the universal interface is identified by _, and read and write the multi-functional semiconductor storage device; system two; the operation of the multi-functional semiconductor storage device. Private and operating system programs to complete the startup of the computer host system Page 36 丨 »