此主板有两组子板牛角连接器。它必须始终与处理器子板 Express 或软宏模型子板配对使用以提供主系统处理器。可以添加可选的逻辑子板 Express 板以提供自定义 IP 开发和验证功能。

• 配备各种有用的外设接口
• 适用于 Versatile Express 子板的拖放式 USB 驱动器配置机制
• 功能强大的启动监视器程序可以配置子板并启动应用软件映像
• 单元预先装载了 Debian Linux 安装程序
• 可以通过 RS232 端口远程控制系统电源并重置信号
• 紧凑独立的系统，携带方便并适合进行展示或客户部署

Versatile Express 主板规格参数手册内容目录

Contents
Motherboard Express μATX Technical Reference Manual

Preface
About this book .......................................................................................................... vii
Feedback .................................................................................................................... xi
Chapter 1 Introduction
1.1 About the Motherboard Express μATX .................................................................... 1-2
1.2 Precautions .............................................................................................................. 1-5
Chapter 2 Hardware Description
2.1 Motherboard architecture and buses ....................................................................... 2-2
2.2 Power up, on/off and reset signals .......................................................................... 2-6
2.3 Clock architecture .................................................................................................... 2-9
2.4 Power ..................................................................................................................... 2-11
2.5 Peripherals and interfaces on the motherboard ..................................................... 2-12
2.6 Interrupt signals ..................................................................................................... 2-18
2.7 DMA signals ........................................................................................................... 2-20
2.8 JTAG and test connectors ..................................................................................... 2-21
Chapter 3 Configuration
3.1 Configuration environment ....................................................................................... 3-2
Chapter 4 Programmers Model
4.1 About this programmers model ................................................................................ 4-2
4.2 Memory maps .......................................................................................................... 4-3
4.3 Register summary .................................................................................................... 4-8
4.4 Register descriptions ............................................................................................. 4-10
4.5 IO Peripherals and interfaces ................................................................................ 4-26
Appendix A Signal Descriptions
A.1 Audio CODEC interface ........................................................................................... A-2
A.2 UART interface ........................................................................................................ A-3
Appendix B Specifications
B.1 Timing specifications ............................................................................................... B-2
B.2 Electrical Specification ............................................................................................. B-7
Appendix C Revisions