Research on Dual-Processor Sharing Pair of Symmetric DRAM

摘要：

This paper presents a scheme of Dual-port Pair of Symmetric Memory Controlling (DPMC) system based on switching, by which the dual-processor can access the shared pair of DDR SDRAM simultaneously and without collision. Therefore, the Symmetric Multi-Processor (SMP) structure can utilize high-density, low-price DDR SDRAM as the shared memory to improve its performance. Two pieces of DDR SDRAM used in the DPMC system are mapped to a pair of symmetric memory and used as the shard memory for dual processor system. The DPMC system will avoid the reading collision between the processors. The DPMC system consist of command interface module, data buffer module, main controller module, quick data path module, DRAM command interface module, clock module and refresh module. The whole design is described in VHDL, and is verified with the FPGA in Xilinx EDK platform.

关键词： based on switch dual-processor NMP dual-port DDR controller EDK

作者: Zhang Bo Zhang Gang

作者单位: College of Information Engineering,Taiyuan University of Technology Taiyuan, China College of Information Engineering Taiyuan University of Technology Taiyuan, China

会议类型: 国际会议

会议名称: 2009 Second International Conference on Intelligent Computation Technology and Automation(2009 第二届IEEE智能计算与自动化国际会议 ICICTA 2009)

会议地点: 长沙

会议语种:英文

页码: 2064-2067

在线出版日期: 2009-10-10（万方平台首次上网日期，不代表论文的发表时间）