TWI362590B - Storage apparatus with ieee1394 interface - Google Patents

Description

1362590 VI. Description of the Invention: [Technical Field] [0001] The present invention relates to a storage device, and more particularly to a highly stable 1 ££1394 storage device that can be connected to a computer interface. [Prior Art] [0002] The IEEE1394 interface is a data transmission bus interface standard developed by the Institute of Electrical and Electronic Engineers (IEEE). The IEEEI394 has two standard interfaces: the IEEE1394a interface and the IEEE1394b interface. The IEEE1394a interface supports data transfer speeds of 100 Mbps, 200 Mbps, and 400 Mbps, and is hot swappable. IEEE1 394b is a high-speed transmission bus interface standard that extends the transmission speed of IEEE1 394a. The IEEE1394b interface supports data transmission rates of 800 Mbps. Currently, the IEEE 1394a/b interface is an important output peripheral for desktop computers, notebook computers, servers, workstations, and consumer electronics, enabling instant data transfer for multimedia applications. [0003] At present, an external hard disk with an IEEE1394 interface is often used in a storage device of a computer, and data is read or written through an IEEE1394a/b interface connected to a computer, and an IEEE1394 external hard disk is expensive, and the driver is driven. The mechanism is a mechanical structure, and the large volume of the sound is difficult to reduce. In the case of impact, vibration, interference, etc., it is easy to cause data damage. SUMMARY OF THE INVENTION [0004] In view of the above, it is necessary to provide a high stability IEEE 1394 memory. 095111390 Form No. A0101 Page 4 / Total 10 Page 1003422232-0 1362590 November 16, 1100 Revision [0005] An IEEE1394 storage device including an IEEE1 394 connector, an interface controller connected to the IEEE 1394 connector, and the like a microprocessor connected to the interface controller, a flash memory chip connected to the microprocessor, and a latch connected between the interface controller and the microprocessor, when writing a signal to the IEEE 1394 storage device The microprocessor can convert the signal received by the interface controller from the IEEE1394 connector into a signal recognizable by the flash memory chip and store it in the flash memory chip. The processor converts the signal stored in the flash memory chip into a signal recognizable by the interface controller, and transmits the signal through the IEEE1394 connector, when the microprocessor communicates with the interface control, the microprocessor The address signal is latched in the latch to transmit a data signal to the interface controller. Compared with the prior art, the IEEE 1394 memory device conforms to the IEEE 1394 interface protocol, and uses a semiconductor flash memory chip with high stability, which can replace the conventional IEEE 1394 external hard disk, even in impact, vibration, interference, etc. In this case, the stored data is not damaged. [Embodiment] Referring to FIG. 1, a preferred embodiment of an IEEE1 394 storage device includes an IEEE1394 connector 10 and interface control connected to the IEEE1394 connector 10. 12, a microprocessor 14 connected to the interface controller 12, a latch 16 connected between the interface controller 12 and the microprocessor 14, and a flash memory chip connected to the microprocessor 14. 18. [0008] The IEEE1 394 connector 10 is a connector of the IEEE1394b-2000 interface standard, and the interface controller 12 is selected from the TSB43AA82 chip of Texas Instruments, which uses Atmel 095111390 form. No. A0101 Page 5 / Total 10 pages 1003422232-0 1362590 _. 100 years. November 16th revised replacement page.) The company's AT89C51 chip 'The latch 16 uses Texas Instruments (TI) 74ACT 1 1 373 The wafer, the flash memory chip 18 is selected from the NAND256R3A chip of STMicroelectronics. [0009] The pins TPA+, TPA-, TPB+, and TPB- of the IEEE1394 connector 10 are respectively connected to the pins TPA1P, TPA1N'TPB1P, and TPB1N of the interface controller 12, and the pin GND of the IEEE1394 connector 1〇 Grounding: The pin PWR of the IEEE1 394 connector 10 is connected to the pin Vin of the first voltage converter 20. The pin Vcc of the first voltage converter 20 is connected to the pin VCC of the interface controller 12 to provide + 3.3V power supply" The pin PWR of the IEEE 13 94 connector 10 is connected to the pin Vin of the second voltage converter 22 'the pin Vcc of the second voltage converter 22 is respectively associated with the latch 16 and the micro The pin 14 of the processor 14 is connected to provide a + 5. 0V 'power supply. The pin pWR of the IEEE1394 connector is connected to the pin Vin of the third voltage converter 24, and the pin Vcc of the third voltage converter 24 is connected to the pin vcc of the flash memory chip 18 to provide + 1. 8V power supply [0010] The pins XCS, XINT, XRD, XWR, XWai, and DA[7:0] of the interface controller 12 are respectively connected to the pins p3. 0, P3 of the microprocessor 14. 1, 卩 3.2,? 3,3,? 3.4,? 1[7:〇] connection. The pin DA[15:8] of the interface controller 12 is connected to the pin Q[7:〇] of the latch 16, and the pins M8M16, MuxMode, and GND of the interface controller 12 are grounded. The pins D[7:〇], le, /〇E of the latch 16 are respectively connected to the pins P1[7:〇], P3. 5, P3.6 of the microprocessor 14, and the latches are connected. Pin 16 of GND is grounded. [0011] The pins P0. P, P0 1, p 〇 2, p 〇 3, 095111390 of the microprocessor 14 Form No. A0101 Page 6 / Total 10 pages 1003422232-0 1362590 100 years. November 16 correction For the pages P0.4, P2[7:0], P0.5, and P0.6, respectively, the pins /E, /R, /W, CL, AL, I/〇 of the flash memory chip 18 [ 7: 〇], /WP, R-/B connection, the pin GND of the microprocessor 14 is grounded, and the pin GND of the flash memory chip 18 is grounded. At the same time, the power pin VCC of the third voltage converter 24 is connected to the pin p 〇 6 of the microprocessor 14 and the pin R-/B of the flash memory chip 18 through the resistor R1. [0012] When applied, the IEEE1394 connector 10 can be connected to the IEEE 1394 interface of the motherboard. The microprocessor 14 performs a data conversion operation with the firmware. When a signal is written from the motherboard hard disk to the IEEE1394 storage device, the signal is transmitted to the interface controller 12 through the IEEE 1394 connector. The processor 14 can convert the signal transmitted by the interface controller 12 into a flash memory signal and store it in the flash memory chip 18. When read, the microprocessor 14 converts the flash memory signal into a signal identifiable by the interface controller 12, and finally transmits the signal to the motherboard hard disk through the IEEE 1394 connector. When the microprocessor 14 is in communication with the interface controller 12, the pin pi [7: 〇] of the microprocessor 14 latches the bit address signal in the latch 16, the microprocessor 14 The pin ρι[7:〇] and the interface controller 12 transmit data signals to each other. [0013] The IEEE 1394 storage device can store data in the hard disk of the motherboard, and can also transfer the stored data to the hard disk of the motherboard. The 1394 storage device conforms to the IEEE 1394 interface protocol, and adopts a semiconductor (four) memory chip, which is stable, and can replace the conventional IEEE 1394 external hard disk without damaging the storage even in the case of impact, vibration, interference, and the like. data of. [0014] 09511139ο 'The above-mentioned 'the present day's performance and invention patent requirements, 爰 patents 1003422232-0 Form No. A_ Page 7 / Total 1 () Page 1362590 [0016] [0017] [0018] [0024] [0024] [0024] [0024] On November 16, 100, the application is replaced by the replacement page. However, the above description is only the preferred embodiment of the present invention, and those skilled in the art will be included in the following application for the equivalent modification or variation in accordance with the spirit of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a circuit diagram of a preferred embodiment of an IEEE 1394 memory device of the present invention. [Main component symbol description] IEEE1 394 connector: 1〇 interface controller: 12 microprocessors: 14 latches: 16 flash memory chips: 18 first voltage converter: 20 second voltage converter: 22 Third voltage converter: 24 Resistor: R1 095111390 Form number A0101 Page 8 / Total page 1003422232-0

Claims (1)

1362590 November 2001 1β曰 Revision_Page VII, Patent Application Range: '1. A ΙΕΕΕ1394 storage device comprising a ΙΕΕΕ1 394 connector and an interface controller connected to the ΙΕΕΕ1 394 connector, the improvement being: the IEEE 1 394 The storage device further includes a microprocessor connected to the interface controller, a flash memory chip connected to the microprocessor, and a latch connected between the interface controller and the microprocessor, when the signal is written When the IEEE1 394 storage device is used, the microprocessor converts the signal received by the interface controller from the IEEE1 394 connector into a signal recognizable by the flash memory chip, and stores the signal in the flash memory chip. During reading, the microprocessor converts the signal stored in the flash memory chip into a signal recognizable by the interface controller, and transmits the signal through the IEEE1394 connector, and controls the microprocessor and the interface. When communicating, the microprocessor latches the address signal in the latch, and the interface controller transmits data signals to each other. 2. The 1394 storage device according to claim 1, further comprising a plurality of voltage converters respectively connected to the I ΕΕΕ 1 394 connector and the interface controller, the latch, and the microprocessor And between the flash memory chips, the ΙΕΕΕ 1394 connector provides operating power for the interface controller, the latch, the microprocessor, and the flash memory chip through the voltage converters respectively. 095111390 Form No. Α0Ι01 9th Page / Total 10 pages 1003422232-0