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AMBA接口文档
Last updated: 7/10/2013 8:44 AM
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AMBA 接口文档
zhangzhi
Revision 0.1
File Path: // E:\\zhangzhi\\ AMBA 接口文档. doc
WARNING This document contains confidential information that could be substantially detrimental to the interest of United Technologies Inc. through unauthorized use or disclose.
AMBA接口文档
Last updated: 7/10/2013 8:44 AM
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Table Of Contents
1 Open Issues ............................................................................................. 4
1.1 Open Feature Issues ............................................................................................................................ 4 1.2 Open Implementation Issues................................................................................................................ 4
2 AMBA总线简介 ............................................................................................. 5
2.1AMBA总线概况 ..................................................................................................................................... 5 2.2 AMBA AHB介绍 ................................................................................................................................... 6 2.3 AMBA APB介绍 .................................................................................................................................. 8
3 AMBA信号 ................................................................................................. 9
3.1AMBA的信号名称 ................................................................................................................................. 9
4 AMBA AHB时序描述 ............................................................................... 12
4.1基本传输 ............................................................................................................................................. 12 4.2传输类型 ............................................................................................................................................. 15 4.3 突发操作 ............................................................................................................................................. 16 4.3.1突发提前终止 ................................................................................................................................... 17 4.4 控制信号 ............................................................................................................................................. 20 4.5 地址译码 ............................................................................................................................................. 22 4.6 数据总线 ............................................................................................................................................. 26 4.7 仲裁 .................................................................................................................................................... 28 4.7.1请求总线访问 ................................................................................................................................... 29 4.7.2 授予总线访问 ................................................................................................................................... 29 4.7.3突发提前终止 ................................................................................................................................... 32 4.7.4 锁定传输 .......................................................................................................................................... 32 4.7.5 默认总线主机 ................................................................................................................................... 33 4.8 分块（split）传输 ............................................................................................................................... 33 4.8.1 分块传输顺序 ................................................................................................................................... 34 4.8.2 多重分块传输 ................................................................................................................................... 34 4.8.2 预防死锁 .......................................................................................................................................... 35 4.8.3 分块传输的总线移交 ........................................................................................................................ 36 4.9 复位 .................................................................................................................................................... 37 4.10 AHB数据总线的位宽 ........................................................................................................................ 37 4.11 AHB总线从机 ................................................................................................................................... 39 4.12 AHB总线主机 ................................................................................................................................... 42 4.13 AHB仲裁器....................................................................................................................................... 44 4.14 AHB译码器....................................................................................................................................... 47
AMBA接口文档
Last updated: 7/10/2013 8:44 AM
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5 AMBA APB .............................................................................................. 50
5.1 APB bridge ......................................................................................................................................... 53 5.2 APB从机 ............................................................................................................................................ 54 5.3 APB到AHB的接口 ............................................................................................................................ 56
6 Revision Changes .................................................................................. 62
AMBA接口文档
Last updated: 7/10/2013 8:44 AM
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1 Open Issues
List all open issues. Include short description of resolution when closed. This should not be detailed.
1.1 Open Feature Issues
1
Issue: Resolution: 2
Issue: Resolution: 3
Issue: Resolution:
1.2 Open Implementation Issues
1 Issue: Resolution: 2 Issue: Resolution: