Design of Multi-Functional Memory Based on FPGAs for DSPs

摘要

This paper presents novel DSP systems containing a multi-functional memory that consist of both a reconfigurable device and a general-purpose memory. In general, DSP system architectures, which can support complex processing, are multi-processor based DSP systems and DSP systems with hardware acceleration. The novel DSP systems, which connect FPGA between a DSP and a memory for the DSP, can accelerate the complex processing that can not show performance sufficient in those architectures. The novel DSP system is evaluated on an original hardware platform called RYUOH that consists of an FPGA, a DSP, and a dual-inline memory module. We confirmed that the performance of a JPEG encoder with multi-functional memory improved about 33% rather than it without the memory.