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AXI stream data frame bus combining device

A combination device and data frame technology, applied in the direction of electrical digital data processing, instruments, etc., can solve the problems of low efficiency and achieve the effect of improving efficiency and improving utilization rate

Active Publication Date: 2019-09-10
天津市滨海新区信息技术创新中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In view of this, the object of the present invention is to provide a kind of AXI stream data frame bus combining device, to alleviate the lower efficiency of the existing AXI stream data frame bus combining device when multiple masters transmit data to slaves technical problem

Method used

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  • AXI stream data frame bus combining device

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Embodiment 1

[0022] figure 1 It is a schematic diagram of an AXI stream data frame bus combination device according to an embodiment of the present invention, such as figure 1 As shown, the device includes: a multi-level register, a data indicator, a ready signal generator, a multiplexer, and a data transmission indicator, wherein the number of the multi-level register and the data indicator is N, so The number of multiplexers is N-1, and N is an integer greater than or equal to 2;

[0023] The multiplexer is respectively connected with each master device and the corresponding multi-level register, and is used to obtain the first indication signal and the data to be transmitted sent by any master device, and write the acquired indication signal and the data to be transmitted into Enter the multi-level register;

[0024] Each of the multi-level registers is connected in turn through a multiplexer, and each of the multi-level registers is respectively connected to each master device, and t...

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Abstract

The invention provides an AXI streaming data frame bus combining device, which relates to the technical field of digital communication and comprises a multi-stage register, a data indicator, a preparation signal generator, a multiplexer and a data transmission indicator; the multiplexer is used for acquiring a first indication signal and to-be-transmitted data sent by any one main device, and writing the acquired indication signal and the to-be-transmitted data into the multi-level register; the multi-level register is used for storing the first indication signal and the data to be transmittedsent by any master device, and sending the first indication signal and the data to be transmitted to the slave device; the data indicator is used for generating a second indication signal; the data transmission indicator is used for generating a third indication signal; and the preparation signal generator is used for generating preparation signals of the master devices and obtaining the preparation signals sent by the slave devices. The technical problem that an existing AXI streaming data frame bus combining device is low in efficiency when a plurality of master devices transmit data to slave devices is solved.

Description

technical field [0001] The invention relates to the technical field of digital communication, in particular to an AXI stream data frame bus combination device. Background technique [0002] In the existing AXI stream data frame bus combining device, when a frame of data needs to be transmitted from the master device to the slave device, according to the requirements of the AXIsteam bus, the valid, last, and data signals are output from the masker device to the slave device, and the ready signal is sent by the slave device device output to the master device. Valid and ready are a pair of handshake signals. When valid and ready are high in the same clock, it means a valid transmission. When the last signal is high, it means the end of the frame. It is the handshake relationship between the ready signal and the valid signal on the bus that ensures the smooth transmission of the back pressure. For example, the master device wants to send a data frame to the slave, but the slav...

Claims

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Application Information

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IPC IPC(8): G06F13/40
CPCG06F13/4022G06F13/4027
Inventor 陶常勇沈剑良刘勤让陈艇汪欣吕平朱珂张楠付豪李沛杰林德伟何丽丽
Owner 天津市滨海新区信息技术创新中心
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