全志A20_DMA开发说明文档_V1.0_20130315

ConfidentialA20 DMA 开发说明- 1 -Copyright © 2013Allwinner Technology. All Rights Reserved.A20 DMA 开发说明V1.02013-03-15ConfidentialA20 DMA 开发说明- 2 -Copyright © 2013Allwinner Technology. All Rights Reserved.Revision HistoryVersionDateChangescomparedto previousissuev1.02013-03-15初建版本ConfidentialA20 DMA 开发说明- 3 -Copyright © 2013Allwinner Technology. All Rights Reserved.目录1. 概述-------------------------------------------------------------------------------------------------------51.1. 编写目的---------------------------------------------------------------------------------------- 51.2. 适用范围---------------------------------------------------------------------------------------- 51.3. 相关人员---------------------------------------------------------------------------------------- 52. 模块介绍-------------------------------------------------------------------------------------------------62.1. 模块功能介绍---------------------------------------------------------------------------------- 62.2. 相关术语介绍---------------------------------------------------------------------------------- 62.2.1. DMA--------------------------------------------------------------------------------------62.2.2. 描述符(des)-----------------------------------------------------------------------------62.2.3. 散列传输--------------------------------------------------------------------------------62.3. 模块配置介绍---------------------------------------------------------------------------------- 62.4. 源码结构介绍---------------------------------------------------------------------------------- 63. 模块体系结构描述------------------------------------------------------------------------------------ 73.1. DMA 驱动架构图------------------------------------------------------------------------------ 73.2. DMA 软件状态--------------------------------------------------------------------------------- 74. 模块数据结构描述...