Dual-machine communication board

A communication board, read-write control technology, applied in the field of computer communication, can solve the problems of inability to apply high-speed real-time data communication, cumbersome data format of transmission information, slow transmission speed, etc., and achieve the effect of easy debugging, various working methods and low cost

Inactive Publication Date: 2008-12-31
BEIHANG UNIV
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

The shortcomings of serial communication are the cumbersome format of the transmitted information data, slow transmission speed, low transmission efficiency, and poor real-time performance, which cannot be applied to high-speed real-time data communication

Method used

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  • Dual-machine communication board
  • Dual-machine communication board
  • Dual-machine communication board

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0018] Such as figure 1 As shown, the two-machine communication board of the present invention includes:

[0019] Address decoding and read-write control module: one end of this module is connected to the address bus on the ISA bus, and the other end is connected to the read-write control signal end of the data storage module. The address signal from the ISA bus is decoded and then strobes the data storage module. Then read and write through the read and write control signals;

[0020] Bus drive and isolation module: the data line of the storage module is connected to the ISA bus through this module to achieve bus load balancing and isolation, so that the data storage module is not connected to the ISA bus when the data storage module is not selected ;

[0021] Data storage module: This module is also the FIFO memory module, which is used as a data buffer unit for two-machine communication. The structural principle of this module figure 2 Shown:

[0022] The module design...

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Abstract

This invention discloses a two-plane communication boards belong to computer communications technology including address decoding, literacy and control module, bus driver and isolation module, data storage module, remote data transmission modules and differential interruption control module. Address decoding and literacy and computer control module connect computer ISA bus one end and the other connect literacy-control signal of the data storage module. The data line of storage modules articulated to the ISA bus through the bus driver with isolation module; long-distance data transmission differential module connect data lines of storage module one end and connect the other end to differential remote data transmission module of the distal interface card; interrupt Control Module ISA bus connecting one end of the line of control interruption, the other end connected external interrupt request terminal. This invention using for the two-machine communications, with prices low, simple communication protocol, long distance communications, data transmission capacity, real-time characteristics of good and high reliability.

Description

technical field [0001] The invention relates to computer communication technology, in particular to parallel communication technology for real-time and long-distance communication between two computers, specifically a two-computer communication board. Background technique [0002] System communication can be divided into parallel and serial. Serial communication is widely used in a large number of PC peripherals and PC communication, such as terminals, printers, disks, etc., due to fewer data lines, long transmission distances, and high reliability. The disadvantages of serial communication are the cumbersome data format for transmitting information, slow transmission speed, low transmission efficiency, and poor real-time performance, which cannot be applied to high-speed real-time data communication. The characteristic of parallel communication is to use multiple data lines to transmit information in parallel, and does not require a fixed format. Parallel communication is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04L12/04H04L5/22
Inventor 吴云洁王卫红李彭
Owner BEIHANG UNIV
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