This paper introduced the concept of integration management system of automobile-maintenance transaction and industry statistics processing, the business process, data flow process and function structure, especially the coupling and data exchange between two subsystems. 介绍了汽车维修事务与行业统计综合管理系统概念、网络连接拓扑结构、业务流程、数据流程与功能结构,还介绍了子系统之间的耦合与数据传递的实现方式等。
Finally, this dissertation studies the transaction processing and mechanism of data flow of the USB host controller. The USB host controller was designed in five aspects: clock generating, serial data management in protocol layer, protocol regular translation, data FIFO and predominated control. 最后,研究了USB主控制器的事务处理和数据传输机制,并从时钟产生、协议层的串行数据处理、协议规范翻译、数据FIFO和主控制五个方面对其进行了结构设计与详细设计。