A fixed-point multimedia DSP chip for portable multimedia services

Author

Ong, Soohwan ; Sunwoo, Myung H. ; Hong, Manpyo

Author_Institution

Ajou Univ., Suwon, South Korea

fYear

1998

fDate

8-10 Oct 1998

Firstpage

94

Lastpage

102

Abstract

Existing multimedia processors having millions of transistors are not suitable for portable multimedia services and existing fixed-point DSP chips having fixed data formats are not appropriate for multimedia applications. This paper proposes a multimedia fixed-point DSP (MDSP) chip for portable multimedia services and its chip implementation. MDSP employs parallel processing techniques, such as SIMD, vector processing, and DSP techniques. MDSP can handle 8-, 16-, 32- or 40-bit data and can perform two MAC operations in parallel. In addition, MDSP can complete two vector operations with two data movements in a cycle. With these features, MDSP can handle both 2D video processing and 1D signal processing. The prototype MDSP chip has 68,831 gates, has been fabricated, and is running at 30 MHz

Keywords

digital signal processing chips; fixed point arithmetic; multimedia communication; parallel processing; vector processor systems; video signal processing; 16 bit; 1D signal processing; 2D video processing; 30 MHz; 32 bit; 40 bit; 8 bit; MAC operations; SIMD; fixed-point multimedia DSP chip; parallel processing; portable multimedia services; vector processing; Costs; Digital signal processing chips; Discrete cosine transforms; Energy consumption; Hardware design languages; Microprocessors; Parallel processing; Prototypes; Signal processing algorithms; VLIW; Video signal processing;

fLanguage

English

Publisher

ieee

Conference_Titel

Signal Processing Systems, 1998. SIPS 98. 1998 IEEE Workshop on

Conference_Location

Cambridge, MA

ISSN

1520-6130

Print_ISBN

0-7803-4997-0

Type

conf

DOI

10.1109/SIPS.1998.715772

Filename

715772