摘要： 介绍一种高性能串行通信芯片PEB20534的工作原理及其使用方法，从硬件角度解析其多级FIFO、DMA控制和中断系统，讨论软件设计中的链表结构初始化和中断处理过程，并给出具体设计流程。利用该技术开发的基于链表结构的同步串行通信板具有工作稳定、数据传输可靠、工作模式随意配置等优点。

关键词: 驱动软件, 同步串, 链表结构

Abstract: A basic principle of PEB20534 is presented. The structure of multilevel FIFO, DMA controller and the interrupt system are discussed. It emphasizes on the discussion of software design, including the initialization of chain structure and interrupt processing. The technology is used for asynchronous serial port driving software based on WDM mode. It not only meets the requirements of serial port communication, but also ensures the correctness of data packet transmission with serial port.

Key words: driving software, synchronous serial port, hain structure

中图分类号: 

• N945