MDSP-II: a 16-bit DSP with mobile communication accelerator

Author

Kim, Byoung-Woon ; Yang, Jin-Hyuk ; Hwang, Chan-Soo ; Kwon, Young-Su ; Lee, Keun-Moo ; Kim, In-Hyoung ; Lee, Yong-Hoon ; Kyung, Chong-Min

Author_Institution

Dept. of Electr. Eng., Korea Adv. Inst. of Sci. & Technol., Taejon, South Korea

Volume

34

Issue

3

fYear

1999

fDate

3/1/1999 12:00:00 AM

Firstpage

397

Lastpage

404

Abstract

This paper describes a 16-bit programmable fixed-point digital signal processor, called MDSP-II, for mobile communication applications. The instruction set of MDSP-II was determined after a careful analysis of the Global System for Mobile communications (GSM) baseband functions. An application-specific hardware block called the mobile communication accelerator (MCA) was incorporated on chip to accelerate the execution of the key operations frequently appearing in Viterbi equalization. With the assistance of MCA, the GSM baseband functions, which need 53 million instructions per second (MIPS) on the general-purpose digital signal processors, can be performed only with 19 MIPS. The MDSP-II was implemented with a 0.6-μm triple-layer metal CMOS process on a 9.7×9.8 mm² silicon area and was operated up to 50 MHz clock frequency

Keywords

CMOS digital integrated circuits; Viterbi decoding; application specific integrated circuits; cellular radio; digital signal processing chips; equalisers; high-speed integrated circuits; telecommunication computing; 0.6 micron; 16 bit; 19 MIPS; 50 MHz; GSM baseband functions; MDSP-II; Viterbi equalization; application-specific hardware block; digital signal processor; instruction set; mobile communication accelerator; programmable fixed-point DSP; triple-layer metal CMOS process; Acceleration; Baseband; CMOS process; Digital signal processing; Digital signal processors; GSM; Hardware; Mobile communication; Silicon; Viterbi algorithm;

fLanguage

English

Journal_Title

Solid-State Circuits, IEEE Journal of

Publisher

ieee

ISSN

0018-9200

Type

jour

DOI

10.1109/4.748192

Filename

748192