Research and Implementation of the DDR2-Based Shared Memory Switch Fabric for Onboard Switches

被引：1

作者：

Chen, Qian ^{[1
]}

Qiao, Lufeng ^{[1
]}

Chen, Qinghua ^{[1
]}

Shen, Huansheng ^{[1
]}

Lv, Pengze ^{[1
]}

Yang, Le ^{[1
]}

机构：

[1] PLA Univ Sci & Technol, Inst Commun Engn, Nanjing, Jiangsu, Peoples R China

来源：

COMMUNICATIONS, SIGNAL PROCESSING, AND SYSTEMS | 2018年 / 423卷

关键词：

Onboard switches; Shared memory switch fabric; DDR2; Throughput;

D O I：

10.1007/978-981-10-3229-5_6

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

A shared memory output queuing structure used in satellite onboard switches is presented in this paper, where DDR2 memory is chosen as the main storage resource. The DDR2 memory can improve the storage capacity and the ability to resist flow fluctuation. The whole shared memory switch fabric is realized with Verilog HDL, simulated with ModelSim SE 10.0b and occupied 8921 LUTs and 77 Block RAMs in a Xilinx xc4vsx55 FPGA, which indicates that the key resources consumption can meet the requirements of triple modular redundancy. When the data is 64 bit wide and the system clock is 100 MHz, the peak throughput of the switch fabric can reach 6.4 Gbps.

引用

页码：49 / 57

页数：9

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