In this paper

we propose a method about the DMA controller design which based on AMBA AHB bus protocol

and describes the characteristics of the AHB bus architecture and DMA data transfer mode

analysis the application of the DMA about data transfer

we propose a more complete functional design of the DMA controller

give a more detailed module designs.Finally describes a method to set up the verification environment and verification process

and through software`s validation

correct completion of DMAC`s functions to be achieved.