Programmable memory emulator capable of emulating unspecified memory devices

摘要

There is disclosed a programmable memory emulator capable of emulating unspecified memory devices. A smart I/O interface is provided in the emulator for being programmed to conform to the interface specifications of different memory devices. An emulation look-ahead memory is employed to replace conventional two-port RAM. Furthermore, the memory of a host is utilized to emulate the functionality of system memory. Thus, the memory emulator is able to emulate various kinds of memory device, and the memory space is only restricted by the host.