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Communication conversion bridge equipment for ahb bus to crossbar bus

A technology of communication conversion and bridge equipment, which is applied in the direction of instruments, electrical digital data processing, etc., and can solve problems such as large judgment delays

Inactive Publication Date: 2017-01-18
苏州智汇谱电子科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in order to avoid excessive decision delay, the arbiter may also interrupt the burst transmission

Method used

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  • Communication conversion bridge equipment for ahb bus to crossbar bus
  • Communication conversion bridge equipment for ahb bus to crossbar bus
  • Communication conversion bridge equipment for ahb bus to crossbar bus

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Embodiment Construction

[0029] like Figures 1 to 6The shown communication conversion bridge device for AHB bus to Crossbar bus includes a device body, and the difference is that an AHB bus is arranged in the device body, and the function control device is connected to the AHB bus. Specifically, the function control device is respectively connected with a read data FIFO device for storing data read from the slave, an address FIFO device for storing addresses sent by the host, and a control FIFO device (read and write control, 1 means write, 0 Indicates read), address generation device, data selector, two-input OR gate device (Or8). In order to facilitate the realization of signal processing, let the data bit width of the AHB bus be L, the bit width of the Crossbar be M, and L≥M, define N=L / M. Meanwhile, the data selector is composed of at least three N-bit data selector MUX81, data selector MUX82 and data selector MUX83. In order to improve the throughput, the address input port of the address gene...

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Abstract

The invention relates to communication conversion bridge equipment between an AHB bus and a Crossbar bus. The communication conversion bridge equipment between the AHB bus and the Crossbar bus comprises a device body, wherein the AHB bus is mounted in the device body and is connected with a function control device; the function control device is connected with each of a read data FIFO device, an address FIFO device, a control FIFO device, an address generating device, a data selector and a two-input OR gate device, wherein the read data FIFO device is used for storing the data which is read from a slave, and the address FIFO device is used for storing the host address. According to the communication conversion bridge equipment between the AHB bus and the Crossbar bus, the valid conversion bridge structure is formed through matching the AHB bus with the functional FIFO devices, and accordingly the reading / writing operation of the slave in the Crossbar bus is initiated by the host in the AHB bus, and the data is communicated between the AHB bus and the Crossbar bus without error based on satisfying the timing sequence rules of the buses.

Description

technical field [0001] The invention relates to a communication conversion bridge device, in particular to a communication conversion bridge device used for AHB bus to Crossbar bus. Background technique [0002] The AHB (Advanced High-performance Bus) bus specification is part of the AMBA bus specification. The AMBA bus specification is a bus specification proposed by ARM. Since the AMBA specification is open to the outside world, designers can develop their own AMBA interfaces for free by using the license terms, making the AMBA on-chip bus technology widely used. [0003] The AHB bus specification is used as the internal high-speed bus of the SoC design to mount high-speed devices. AHB bus system consists of master device, slave device and basic device. The basic equipment consists of an arbiter, a data multiplexer, an address control multiplexer and a decoder. The master device that needs to occupy the bus submits a request to the arbiter to occupy the bus, and the ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F13/40
Inventor 董岚章鹤张珂
Owner 苏州智汇谱电子科技有限公司
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