Realization of SDRAM Controller in High-speed Image Storing System
Qian Wang · Chinese Journal of Liquid Crystals and Displays · 2006
As the mass storage devices, SDRAM is great valuable in high speed image storing system. Due to the different structure of SDRAM and SRAM, the control of SDRAM is more complex than that of SRAM. The structure, interface signal and operation method of SDRAM and SDRAM controller are introduced in this article. The SDRAM controller based on FPGA is designed and used in real system. On the mainstream FPGA chip EP1C6Q240C8, by adding the pipeline level and arranging the output in the IO element, this controller has reached to the performance of 185 MHz.