文件名称:040402~~
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虽然与SRAM相比，SDRAM需要额外的控制逻辑，有更复杂的时序要求，需要定时刷新，但是由于SDRAM具有单位空间存储容量大和价钱便宜的优点，因而被许多的嵌入式开发者所青睐。为此，针对这种情况，必须设计SDRAM控制器。为了降低系统成本，本课题采用FPGA技术，并使用VHDL语言研究了FPGA与SDRAM的存储器接口实现问题。-Abstract In order to expand the SDRAM’S storage capacity of the TS一101 processor，a method is pro—
posed for implementing the SDRAM controller based on FPGA．The characteristics of the corresponding
SDRAM are
analyzed and the schematic diagrams and the timing are
given．The function of modules and per-
formance of SDRAM storage board are described．The design method of modularization is adopted in FPGA．
This design expands the SDRAM’S storage capacity of the TS-101 processor to 512Mbytes．
posed for implementing the SDRAM controller based on FPGA．The characteristics of the corresponding
SDRAM are
analyzed and the schematic diagrams and the timing are
given．The function of modules and per-
formance of SDRAM storage board are described．The design method of modularization is adopted in FPGA．
This design expands the SDRAM’S storage capacity of the TS-101 processor to 512Mbytes．
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040402~~.pdf