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数字电视传输流ASI接口的设计与实现 被引量:1

Design and Im plem entation of ASI interface for Digital T elevision T ransport Stream
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摘要 遵照国家的DVB标准及SPI接口标准,提出一种能够用于多种数字电视制式的(包括DTMB、DVB-C、DVB-T、ATSC等),基于同轴电缆的ASI传输接口的实现方案,方案中采用ALTER A公司可编程逻辑器件完成SPI到ASI的转换所需的逻辑控制,CYPRESS公司的FIFO芯片完成存储功能,并使用CYPRESS公司的HOTLink系列芯片实现ASI的发送。提出的方案是一个通用的方案,可直接应用于类似功能的需求,为相似应用提供了一个可实现的参考。 According to the national DVB standard and SPI interface standard, this paper proposes an implementation scheme of ASI transmission interface based on coaxial cable, which can be used in almost all digital television modes (including DTMB, DVB-C, DVB-T, ATSC etc.). The FIFO chip of CYPRSS is used to perform storage function and the HOTLink series chips of CYPRESS are used to perform AS/sending. The present scheme is a common solution and it can be used for similar demand direcdy and provide a realizable reference for similar application.
出处 《计算机与网络》 2013年第8期64-67,共4页 Computer & Network
关键词 数字电视 传输流 SPI ASI MPEG-2 digital television TS, SPI ASI MPEG-2
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