Abstract
In many multimedia SOC (System on Chip), application software and data are stored either in on-chip memory or in Cache for efficient execution. Therefore, large amounts of on-chip memory increase the area and power dissipation of the whole chip. In order to reduce memory size and its power dissipation, parts of programs and data are stored in off-chip memory, and are loaded into on-chip memory while being used, which will increase the memory access time. So how to use the on-chip memory efficiently is a main problem in hardware and software co-design. This paper proposes approaches to memory optimization in SOC by using audio decoding program employed by MPEG-2 decoding chip as an example.
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