【作者】 陈东晓； 周建； 张华； 梅优良；

【Author】 CHEN Dong-xiao, ZHOU Jian, ZHANG Hua, MEI You-liang (Department of Information Science and Electronic Engineering, Zhejiang University, Hangzhou 310027, China) (Department of Electronic Science, Daqing Petroleum Institute, Daqing 163318, China)

【机构】 浙江大学信息与电子工程学系； 大庆石油学院电子科学学院；

【摘要】 针对嵌入式多媒体应用,设计了一种媒体增强的可配置微处理器核RISC32。研究了媒体增强扩展,流水线控制策略,旁路技术以及异常处理等。RISC32采用参数化和模块化设计方法,具有较强的可配置性。在Xilinx X2CV3000 FPGA上通过了指令集仿真,并进行了基于RISC32的MPEG-4 AAC音频实时解码实验,表明该RISC 核能够方便地应用于片上系统(SoC)。更多还原

【Abstract】 To meet embedded multimedia applications, a media-enhanced and reconfigurable RISC microprocessor is designed. Media-enhanced extension, pipeline controlling strategy, bypassing unit and exception handling are studied. By parameterized and module design, the microprocessor can be configured easily. The RISC core is simulated in Xilinx X2CV3000 FPGA successfully and an MPEG-4 AAC decoder based on the microprocessor has been implemented. The result shows that the core can be conveniently integrated into SoC.更多还原