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Bus system

A bus system, bus technology, applied in the direction of instruments, electrical digital data processing, etc., can solve problems such as limiting bus frequency

Inactive Publication Date: 2006-12-13
SHANGHAI MAGIMA DIGITAL INFORMATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, in this bus architecture, all data transmission needs to go through the arbitrator before reaching the target device, which also limits the increase of the bus frequency.

Method used

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Embodiment Construction

[0036] figure 2 The illustrated exemplary embodiment illustrates the bus system according to the invention by way of example of a bus system comprising six bus devices 11 to 16 . The bus device can be CPU, decoder and other application-specific integrated circuit modules (ASIC) or memory, such as SDRAM, FLASH and so on.

[0037] see figure 2 The bus system of the present invention includes a bus ring 20 with a ring structure, and a plurality of bus devices are respectively connected to the bus ring 20 through corresponding bus node units (also referred to as bus nodes) 21 to 26 respectively. The bus ring 20 is, for example, a bidirectional ring, including a clockwise ring and a counterclockwise ring. On the bus ring, the bus devices 11 to 16 can transmit signals bidirectionally via the respectively associated bus node units 21 to 26 . The clockwise ring and the counterclockwise ring can be set to be physically independent of each other, so that two adjacent bus devices ca...

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Abstract

Disclosed is a general bus system which can transmit distributed data between different general bus equipments. The inventive general bus system comprises a plurality of general bus node units, each of them corresponds to one general device; a general bus ring for connecting the said plural general bus nodes together. The general bus system is a ring type structure, and the general bus allows the concurrency of data transmission among plural nodes to promote transmission efficiency and band width of general bus.

Description

technical field [0001] The invention relates to a bus system, in particular to a bus system applied to a single-chip system capable of carrying out distributed data transmission among multiple bus devices. Background technique [0002] The single-chip system is to design all the devices of the electronic system on the same chip, and carry out cooperative management of each device in the system through a certain coordination mechanism to achieve system-level function realization. Single-chip systems generally have the characteristics of simple structure. At the same time, silicon intellectual property core multiplexing technology also simplifies and speeds up the design process of single-chip systems. Modifications just got easier. [0003] In a single-chip system, the comprehensive realization of complex functions is achieved on the same chip, which often includes multiple devices that need to send and receive signals between each other. In order to avoid multiple devices t...

Claims

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Application Information

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IPC IPC(8): G06F13/40
Inventor 周振亚孙民梁
Owner SHANGHAI MAGIMA DIGITAL INFORMATION