A fast asynchronous re-configurable architecture for multimedia applications

In this paper we describe a fast re-configurable asynchronous architecture for multimedia applications. The asynchronous architecture reflects the data-flow characteristics of such multimedia applications. As an example we realized the DCT/IDCT algorithms. These algorithms are used for MPEG encoding and decoding. The realized DCT/IDCT algorithms are based on those of Chen-Wang (1984). It is known as one of the most efficient implementations of the DCT/IDCT algorithms. Each DCT/IDCT consists of multiplications and additions. We realized one operator network of different asynchronous components to map the DCT and the IDCT on it. Furthermore, first simulation results of VHDL models show, the effectiveness of the approach.