Design and Implementation of an Advanced DMA Controller on AMBA-Based SoC

摘要：

In this paper,we have proposed a design and implementation of an AMBA based advanced DMA controller. The DMAC has 8 channels which support hardware and software triggers,linking operation and channel chaining transfer and provides three dimensions transmission by parameter sets so as to perform data block moving,data sorting and subframe extraction of various data structures. Channel arbitration mechanism adopts hardware priority combined with weighted priority rotational algorithm. Moreover the DMAC supports incrementing and wrapping addressing modes and completes data transfer which the data width of read and write is different by asymmetriC asynchronous FIFO.Furthermore the DMAC adopts dual clock domain design so as to decrease the power consumption. The DMAC has the function of APB Bridge,and achieves AHB bus and APB bus to run in parallel. And the DMAC could adopt buffer and non-buffer data transfer mode according to the speed of equipments.With 0.18um library technology of SMIC,a working frequency of 408MHZ is achieved Experimental results show that the DMAC has better performance than traditional DMAC and DMA PL081.

关键词： DMA controller AMBA bus SoC Dual-clock Domain Asymmetric Asynchronous FIFO

作者: Guoliang Ma Hu He

作者单位: Institute of Microeleetronies of Tsinghua University,Beijing,China Institute of Microelectronics of Tsinghua University,Beijing,China

会议类型: 国际会议

会议名称: 2009 IEEE 8th International Conference on ASIC(第八届IEEE国际专用集成电路大会)

会议地点: 长沙

会议语种:英文

页码: 419-422

在线出版日期: 2009-10-20（万方平台首次上网日期，不代表论文的发表时间）