Research and design of multi-channel DMA controller based on AHB protocol

HONG Tengda; WANG Faxiang

doi:10.20193/j.ices2097-4191.2025.0059

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Integrated Circuits and Embedded Systems ›› 2025, Vol. 25 ›› Issue (10) : 10-16. DOI: 10.20193/j.ices2097-4191.2025.0059

Research Paper

Research and design of multi-channel DMA controller based on AHB protocol

HONG Tengda ,
WANG Faxiang ^*

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Abstract

This study proposes a design method for a multi-channel DMA controller based on the AMBA AHB bus protocol. It puts forward a relatively complete design scheme for the multi-channel DMA controller, and provides detailed module designs. Through the multi-channel design, channel arbitration enables the two channels with the highest priority to alternately read and write, thereby preventing prolonged bus occupation by a single channel that could block other transfers. And resource consumption is reduced through time division multiplexing. Moreover, potential interactions with external devices are considered, improving transmission efficiency while reducing overall resource utilization.

Key words

AMBA / AHB / DMAC / SoC / integrated circuit design

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HONG Tengda , WANG Faxiang. Research and design of multi-channel DMA controller based on AHB protocol[J]. Integrated Circuits and Embedded Systems. 2025, 25(10): 10-16 https://doi.org/10.20193/j.ices2097-4191.2025.0059

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