RapidIO控制器的CRC模块设计  

CRC Module Design of RapidIO Controller

作　　者：刘畅[1] 章建雄[1] 王玉艳[1] 

机构地区：[1]华东计算技术研究所,上海200233

出　　处：《计算机工程》2011年第15期238-239,242,共3页Computer Engineering

摘　　要：RapidIO控制器在添加循环冗余码(CRC)时存在电路面积大、功耗高的问题。为此,设计一种4个CRC16生成器并行执行的CRC模块。对该模块进行功耗评估,结果表明,与原结构相比,该模块能提前1个时钟周期输出校验值,逻辑门数减少10.8%,面积减少18.9%,功耗降低25.3%。For the problems that the RapidlO controller with many Cyclic Redundancy Code（CRC） will increase the area and power, this paper designs a new CRC module with four CRCI6 generators, which work at the same time. The new CRC module can output the check code ahead of the previous work for one cycle. Results of power evaluation show that compared with the previous work, the number of logical gates, the area, and the power of this design are respectively decreased by 10.8%, 18.9%, and 25.3%.

关 键 词：RapidIO控制器 循环冗余码 CRC生成器 嵌入式系统 

分 类 号：TP303[自动化与计算机技术—计算机系统结构]