FPGA realization of multi-port SDRAM controller in real time image acquisition system

Multi-port controller means the share of the memory source, which is mostly applied on occasions for need real time process. This paper firstly introduces the principle of the SDRAM, then a multi-port SDRAM controller based on FPGA is presented, which is apt to the real time image acquisition system. The details from overall concept to sub-modules are focused. This controller has wide scope of application because of FPGA´s features of fast, flexible and strong characteristics of transplantation.