Multiple Master Communication in AHB IP using Arbiter

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Hitanshu Saluja 1 Naresh Grover 1

1. Manav Rachna International Institute of Research and Studies, Faridabaad, Hrayana, India

* Corresponding author.


Received: 11 Nov. 2019 / Revised: 30 Nov. 2019 / Accepted: 28 Dec. 2019 / Published: 8 Feb. 2020

Index Terms

AMBA, AHB Master, AHB Slave, AHB Arbiter, SOC, Xilinx


The major disadvantage of a standard bus topology is the constraint of being able to realize only one communication at a time (the tasks may take place in parallel but the communications are only done in a sequential). As these communications are handled by the bus arbiter, a Bottleneck when the number of communications increases, but also when the bandwidth constraints of several communications become important.This arbitration plays a predominant role because it authorizes communications on the bus but it is also in charge of resolving the conflicts (several requests of communications at the same time). This arbitration implies therefore a limitation on the number of IP connected to the bus to a dozen elements.
This work elaborates the AMBA bus interface with four masters interacting with single memory system, using Arbiter between memory controller and other supporting peripherals. Different module of i.e., AHB MSTER, AHB SLAVE INTERFACE AND AHB ARBITER(round robin algorithm)has been developed with VHDL. Further integration with FIFO, RAM and ROM with memory controller is done. The Four AHB master initiates the operations and generates the necessary control signals on single bus to memory controller with the help of arbiter. The proposed architecture shows the area efficient management as compared to previous researches of multiple data communication in AHB BUS system. The system model is synthesized with Xilinx XC6vx75t-2ff484 and simulated with MODELSIM.

Cite This Paper

Hitanshu Saluja, Naresh Grover. “Multiple Master Communication in AHB IP using Arbiter", International Journal of Engineering and Manufacturing(IJEM), Vol.10, No.1, pp.29-40, 2020. DOI: 10.5815/ijem.2020.01.03


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