题目

英语翻译
DMA priority levelEach DMA channel can be independently assigned high priority or low priority relative to each other.MultipleDMA channels that are assigned to the same priority level are handled in a round-robin manner.DMA source/destination address modificationThe DMA provides flexible address-indexing modes for easy implementation of data management schemessuch as autobuffering and circular buffers.Source and destination addresses can be indexed separately andcan be post-incremented,post-decremented,or post-incremented with a specified index offset.DMA in autoinitialization modeThe DMA can automatically reinitialize itself after completion of a block transfer.Some of the DMA registers canbe preloaded for the next block transfer through the DMA global reload registers (DMGSA,DMGDA,andDMGCR).Autoinitialization allows:
Continuous operation:Normally,the CPU would have to reinitialize the DMA immediately after thecompletion of the current block transfer; but with the global

提问时间：2020-10-31

答案

直接存储器存取优先leveleach通道可独立分配高优先级和低优先级相对彼此.multipledma通道被分配到相同的优先级处理在一个循环manner.dma源/目的地址modificationthe存储器提供了灵活的address-indexing方式易于实现...