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DDR3 SDRAM的时序图，供学习调用DDR3使用。 目录 DDR3 SDRAM Specification 1. Functional Description ..................................................................................................................................................5 1.1 Simplified State Diagram ......................................................................................................................................... 5 1.2 Basic Functionality................................................................................................................................................... 6 1.3 RESET and Initialization Procedure ........................................................................................................................ 6 1.3.1. Power-up Initialization Sequence..................................................................................................................... 6 1.3.2. Reset Initialization with Stable Power .............................................................................................................. 7 1.4 Register Definition ................................................................................................................................................... 8 1.4.1. Programming the Mode Registers ................................................................................................................... 8 1.4.2. Mode Register MR0 ......................................................................................................................................... 9 1.4.2.1 Burst Length, Type and Order .................................................................................................................... 9 1.4.2.2 CAS Latency............................................................................................................................................... 10 1.4.2.3 Test Mode.................................................................................................................

Purpose . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Intellectual Property . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Trademarks . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Patents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .9 Support for this Standard. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Acknowledgments. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11 Revision History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13 Section 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 1.1 Document Organization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15 1.2 Display Stream Compression Objectives. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 1.3 Display Stream Compression Versions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .16 1.4 Acronyms, Initialisms, and Abbreviations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17 1.5 Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .19 1.6 Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 1.6.1 Bit Ordering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 1.6.2 Functions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22 1.7 Conventions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 1.8 Reference Documents . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .23 Section 2 Requirements (Informative) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24 Section 3 Theory of Operation (Informative). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 3.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25 3.2 Color Space Conversion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 3.3 Prediction and Quantization. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 3.3.1 Modified Median-Adaptive Prediction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .30 3.3.2 Block Prediction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .31 3.3.3 Midpoint Prediction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .32 3.4 Indexed Color History . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .33 3.5 Bitstream Construction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 3.5.1 Substream Layer . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .34 3.5.2 Substream Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36 3.6 Rate Control . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .38 3.7 Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .39 3.7.1 Hypothetical Reference Decoder-Based Timing Model . . . . . . . . . . . . . . . . . .39 3.7.2 Constant and Variable Bit Rate Modes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .41 3.7.3 Slices and Timing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .42 3.8 Options for Slices. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .45 3.9 Slice Multiplexing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .46VESA Display Stream Compression (DSC) Standard UNAUTHORIZED DISTRIBUTION PROHIBITED Version 1.2a Copyright © 2014 – 2017 V

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自制中文AHB协议培训PPT。 总体结构：总线互连逻辑由一个地址解码器和一个从机到主机的多路复用器组成。解码器监视来自主机的地址，以便选择适当的从机，然后多路复用器将相应的从机输出数据路由回主机。

摘 要：随着计算机、电 视 机 和 手 机 等 显 示 设 备 分 辨 率 的 迅 速增加，采 用 显 示 流 压 缩（Ｄｉｓｐｌａｙｓｔｒｅａｍｃｏｍｐｒｅｓｓｉｏｎ，ＤＳＣ）技术解决显示链路带宽不足已成业界的共识。近年来陆续出现了ＪＥＰＧ－ＸＳ，Ｈ．２６４／ＡＶＣ和 Ｄｉｒａｃ（ＶＣ－２）的纯帧内编码、ＨＥＶＣ－ＳＣＣ屏幕内容编码和 ＶＥＳＡ 的 ＤＳＣ 等显示链路压缩技术。其中最为典型的是视频电子标准协会（Ｖｉｄｅｏｅｌｅｃｔｒｏｎｉｃｓｓｔａｎｄａｎｄｓａｓｓｏｃｉａｔｉｏｎ，ＶＥＳＡ）的 ＤＳＣ 标准，这是一个被广泛接受的用于显示链路的低成本、短延时和视觉无损的轻量级编解码标准。ＤＳＣ 的高效编码技术包括先进的预测、历史彩色索引、简 捷 的 熵 编 码 以 及 良 好 的 速 率 控 制 等。本文综述了 ＤＳＣ 标准的新特性和主要技术概况。 关键词：视频压缩；显示流压缩；显示链路；预测编码；视觉无损编码

MIPI DSI培训文件，很详细，有范例。 目录： DSI Introduction DSI Layers Packet Level Protocol Long Packet Short Packet Forward Direction Packet Data Types Reverse Direction Packet Data Types Error Reporting Format Display Mode Command Mode Video Mode Lane Management D-PHY Introduction