Abstract: MPEG-2 is the most widely used international standard about digital audio and video nowadays.Using top-down methodology，AMBA system bus and DMA controller are implemented in Verilog HDL and the whole design is targeted to a FPGA device for verification.The test results show that the design can operate at 150 MHz，which meets SDTV and HDTV standard.

Key words: MPEG-2, Advanced Microcontroller Bus Architecture（AMBA） bus, Direct Memory Access（DMA） controller

摘要： MPEG-2是目前应用最广泛的数字音视频编码的国际标准，采用Top-Down 的方法，完成了MPEG-2解码系统芯片中的AMBA（Advanced Microcontroller Bus Architecture）总线和DMA（Direct Memory Access）控制器的RTL级代码设计，并搭建测试平台进行功能仿真，最后通过了FPGA的验证。测试结果表明该设计能够在150 MHz频率下工作，满足数字电视标清和高清的标准要求。

关键词: MPEG-2, AMBA总线, DMA控制器