Data conversion bridge device for crossbar bus and ahb bus

Abstract

The invention relates to data conversion bridge equipment of a Crossbar bus and an AHB. The data conversion bridge equipment comprises an equipment body and is characterized in that the Crossbar bus is arranged in the equipment body, the Crossbar bus is connected with a functional control device, a data reading FIFO device, a data writing FIFO device, an address FIFO device, a control FIFO device, an address generating device, at least three N-position data selectors, two inputs or gates, wherein the three N-position data selectors refer to the data selector MUX 101, the data selector MUX 102 and the data selector MUX 103. The functional control device, the data reading FIFO device, the data writing FIFO device, the address FIFO device, the control FIFO device, the address generating device, at least three N-position data selectors and the two inputs or the gates are in mutual data communication. Thus, an effective bridge structure is formed through cooperation between the AHB and the various functional FIFO devices, reading / writing of a master device in the Crossbar bus to a slave device in the AHB can be achieved, so the data can meet timing sequence standards of the Crossbar bus and the AHB, and error-free communication of the data can be achieved.

Description

technical field [0001] The invention relates to a data conversion bridge device, in particular to a data conversion bridge device for a Crossbar bus and an AHB bus. Background technique [0002] The AHB (Advanced High-performance Bus) bus specification is a part of the AMBA bus specification. The AMBA bus specification is a bus specification proposed by ARM Corporation. Because the specification of AMBA is open to the outside world, designers can develop their own AMBA interface free of charge by using the licensing terms, which makes the AMBA on-chip bus technology widely used. [0003] The AHB bus specification is used as an internal high-speed bus for SoC design to mount high-speed devices. The AHB bus system consists of master equipment, slave equipment and basic equipment. 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 proposes a bus occupation request to th...

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Problems solved by technology

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

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