The D30V/MPEG multimedia processor

Author

Takata, Hidehiro ; Watanabe, Tetsuya ; Nakajima, Tetsuo ; Takagaki, Takashi ; Sato, Hisakazu ; Mohri, Atsushi ; Yamada, Akira ; Kanamoto, Toshiki ; Matsuda, Yoshio ; Iwade, Shuhei ; Horiba, Yasutaka

Author_Institution

Mitsubishi Electr. Corp., Itami, Japan

Volume

19

Issue

4

fYear

1999

Firstpage

38

Lastpage

47

Abstract

MPEG-2 decoding and encoding are important applications for multimedia systems. Real-time capability and low-cost implementation are the main design considerations for these systems. Due to the high computational requirements of real-time applications, multimedia systems typically use special-purpose processors to handle data. However, due to the inherent inflexibility of their designs, these dedicated processors are of little use in various application environments-digital videocassette recorders, for example. This article introduces Mitsubishi´s D30V/MPEG multimedia processor, which integrates a dual-issue RISC with minimal hardware support for a real-time MPEG-2 decoder. This approach is advantageous because of the small chip area it requires and the flexibility of the easy-to-program RISC processor for multimedia applications

Keywords

decoding; encoding; multimedia systems; reduced instruction set computing; video coding; D30V/MPEG multimedia processor; MPEG-2 decoding; dedicated processors; digital videocassette recorders; dual-issue RISC; encoding; low-cost implementation; minimal hardware support; real-time MPEG-2 decoder; special-purpose processors; Clocks; Cyclic redundancy check; Decoding; Hardware; Motion compensation; Multimedia systems; Read-write memory; Real time systems; Reduced instruction set computing; Throughput;

fLanguage

English

Journal_Title

Micro, IEEE

Publisher

ieee

ISSN

0272-1732

Type

jour

DOI

10.1109/40.782566

Filename

782566