摘要
本文介绍了符合USB2.0协议的FX2系列芯片利用可编程控制接口GPIF与外设进行高速数据传输的基本机制,及其软配置波形描述符的实现原理,并详细阐述了波形描述符的结构和各字段的含义,最后给出了据此进行波形描述符设计的基本方法和实例。
This paper presents the basic mechanism that the series of chippes FX2 which is compatible with USB2.0 transfers high-speed data with external devices through GPIF(General Programmable Interface), and the practical principle of soft configuration for Wave-Descriptor. Then the structure and every word's meaning of Wave-Descriptor are discussed in detail, at last a primary method for designing Wave-Descriptor by this is proposed and also an example for it is given.
出处
《微计算机信息》
北大核心
2005年第2期158-159,179,共3页
Control & Automation
