The interface control circuit between the MC68360 microprocessor and SDRAM is implemented using VHDL language, providing a flexible, efficient and reliable solution for Motorola 68xxx CPU to use SDRAM in development and design. The interface circuit design mentioned in this article is different from the SDRAM controller of other IP cores. As long as you simply understand the meaning of chip select signals, read and write signals, clocks, data and address buses in computer systems, you can implement various ways of operating SDRAM. It can be widely used in any general microprocessor and SDRAM interface design application with a clock above 5MHz. And it has been widely used in practice. Keywords:SDRAM MC68360 VHDLThe Interface of design between MC68360 and SDRAM Liu Hao1,Ji Lixin2,Wang Fuyuan1, Hang Dequan2 (1:College of Information Engineering, ZhengZhou University, Zhengzhou 450001;2:National Digital Switching System Engineering & Technological R&D Cente (NDSC),Zhenghzou 450002) 【Abstract】 It describes a new interface-control methodology to implement an interface between MC68369 and SDRAM with VHDL which provides a flexible,reliable and efficient solution in Design with Motorola 68xxx CPU. The difference between this interface circuit in this paper and other IP SDRAM controller is to manipulate SDRAM easily ,and do not need to be familiar with any specific computer system. It only need to know about Chip select, Read or Write signals, Address Bus, Data Bus, SDRAM . It can be used widely in many kinds of microcomputer system which clock frequency is 5MHz and more.【Key words】:SDRAM MC68360 VHDL
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