【摘要】 介绍了一种新的高速 ASI的设计与实现。该接口以 CYPRESS公司的 CY7B92 3和CY7B933为基础 ,辅之以 EPL D和 FIFO,实现了 ASI的发送与接收功能。接口符合 DVB- ASI接口规范 ,实现了高达 2 70 Mbits/s的 Mpeg- 2传输流传输。文中首先介绍了 ASI的特点 ,构成 ;接着以本文实现的 DVB- ASI为重点 ,详细阐述了它的硬件组成与硬件实现 ;最后给出了 DVB- ASI接口的测试实验。本文设计的 DVB- ASI接口经在多节目复用器 ,码流发生分析仪 ,高清编码器和解码器中的成功应用 ,证明了其设计的正确性与可靠性更多还原

【Abstract】 The design and the implementation of a new kind of high speed asynchronous serial interface (ASI) are introduced. Based on CY7B923 and CY7B933 of CYPRESS, cooperated with the EPLD and FIFO, the ASI realizes the sending and receiving of Mpeg 2 transport stream. It conforms to the DVB ASI standard and realizes the Mpeg 2 transport stream delivery. The feature and the structure of ASI are first described. Then the hard ware architecture and the implementation of DVB ASI are illustrated in detail. Finally the experimental results of DVB ASI are presented. The DVB ASI is successfully applied to the multi program multiplexer, code stream generator, high definition encoder and decoder, which confirm its correctness and reliability.更多还原