首页>
外国专利>
Data transmission method for improving DMA and data transmission efficiency based on priorities of at least two arbitration units for each DMA channel
Data transmission method for improving DMA and data transmission efficiency based on priorities of at least two arbitration units for each DMA channel
展开▼
机译:基于每个DMA通道的至少两个仲裁单元的优先级来提高DMA和数据传输效率的数据传输方法
展开▼
页面导航
摘要
著录项
相似文献
摘要
An embodiment of the disclosure relates to the field of data transmission, in particular to a data transmission method and a data transmission device, for solving the problems of low data transmission efficiency and poor Direct Memory Access (DMA) performance in a method of arbitrating each DMA channel in a round-robin mode and transmitting data according to an arbitration result. The method in the embodiment of the disclosure includes that: for each DMA channel, an arbitration unit corresponding to the channel among a plurality of arbitration units is determined according to transmission performance corresponding to data in the channel; and when data in channels corresponding to at least two arbitration units need to be transmitted, the data are transmitted according to priorities of the at least two arbitration units. The embodiment of the disclosure first transmits data corresponding to a channel with good transmission performance corresponding to the data in the channel, and keeps a bus unblocked, thus improving data transmission efficiency and improving DMA performance.
展开▼