PCI equipment using serial flash memory

Abstract

The invention relates to a PCI device using a serial port flash memory based on a local bus standard specification, which is applied to the data security field. The device uses a PCI interface chip to perform physical isolation, protection and restoration to storage data, thereby guaranteeing a higher data security. The device of the invention comprises a PCI interface chip and a serial port flash memory and is connected with a bus master device with the local bus standard specification, wherein the PCI interface chip and the serial port flash memory are connected in a serial mode, thereby implementing a conversion for serial data and parallel data and solving a velocity matching problem between communication of serial data and parallel data through a cycle step, and hardware is of simple structure, reasonable design and convenient use. Because of a mode of serial connection adopted by the device of the invention, the PCI device has lower cost, a more convenient arrangement, simpler manufacture, lower cost in hardware, and can be better implemented with a price of large-scale commercialization.

Description

technical field [0001] The invention relates to a PCI device using a serial port flash memory. The device is applied in the field of data security based on local bus standards. The device uses a PCI interface chip to physically isolate, protect and restore stored data to ensure higher data security. Background technique [0002] In the past, the computer isolation technology was purely mechanical isolation, and the dedicated chip of the PCI bus expansion ROM control card provided an electrically erasable read-only memory flash-ROM, which was dedicated to various PCI expansion ROM cards, including system restoration cards and data protection cards. , security card, etc., so it is more professional, more beautiful, more convenient, cheaper, and more worry-free. Under the current technical conditions, most flash-ROMs are parallel data processing. Due to the high cost of parallel flash-ROMs, it is almost impossible to realize them at a large-scale commercial price. [0003] PCI...

AI Technical Summary

Problems solved by technology

The PCI device identification information is directly solidified in the dedicated interface chip, so the chip can only be used for a certain device of a certain manufacturer; and because customizing the chip is like opening a mold, there are "mold opening fees" and "direct costs for a single product." The cost of fees"

Images