SEARCH1: A multiprocessor chip for disk drive applications

Author

Aymeloglu, S. ; Foster, R.E. ; Saniski, M.W. ; Hessing, C.E. ; Shelton, B.N.

Author_Institution

AT&T Bell Lab., Allentown, PA, USA

fYear

1993

Firstpage

116

Lastpage

119

Abstract

The architecture and design process of the SEARCH1 servo/channel multiprocessor are described. This device, which was specifically designed for embedded servo disk drive applications, contains all the digital circuitry needed to implement actuator and spindle servos. It combines an 8-b general-purpose processor to coordinate the various functions in the drive, a 16-b DSP to perform the servo calculations, and a timing processor to generate servo burst timing, perform spindle speed control, and detect servo timing marks

Keywords

CMOS digital integrated circuits; application specific integrated circuits; digital signal processing chips; hard discs; microcontrollers; multiprocessing systems; servomotors; timing circuits; CMOS; DSP; SEARCH1; activator servos; architecture; custom chip; design process; embedded servo disk drive applications; general-purpose processor; microprocessor core; servo burst timing; servo timing marks; servo/channel multiprocessor; spindle servos; spindle speed control; timing processor; Circuits; Digital signal processing chips; Disk drives; Emulation; Microcontrollers; Pins; Read only memory; Servomechanisms; System testing; Timing;

fLanguage

English

Publisher

ieee

Conference_Titel

ASIC Conference and Exhibit, 1993. Proceedings., Sixth Annual IEEE International

Conference_Location

Rochester, NY

Print_ISBN

0-7803-1375-5

Type

conf

DOI

10.1109/ASIC.1993.410822

Filename

410822