嵌入式RISC核MPEG2/AC3解码器  

A decoder for MPEG2 and AC3 with embedded RISC core

作　　者：韦晓东[1] 周琼芳[1] 汪斌[1] 吕江波[1] 张明[1] 刘鹏[1] 虞露[1] 

机构地区：[1]浙江大学信息与通信工程研究所,浙江杭州310027

出　　处：《半导体技术》2003年第7期47-49,55,共4页Semiconductor Technology

摘　　要：介绍了在一个嵌入RISC核的AC3/MPEG2音/视频解码器中,通过增加特殊指令及其相应的硬件逻辑,对AC3的音频解码进行了一定的改进,不仅达到了AC3解码的实时性要求,而且降低了对存储器的要求。A decoder for MPEG2 and AC3 with embedded RISC core as a center componenthad been developed. By adding some special instructions in RISC core with corresponding hardwarelogic, AC3 real-time decoding had been archived, while the request for programming memory hadbeen reduced.

关 键 词：嵌入式RlSC MPEG2 AC3 视频解码器 音频解码器 

分 类 号：TN764[电子电信—电路与系统]