Title :
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
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;
Conference_Titel :
ASIC Conference and Exhibit, 1993. Proceedings., Sixth Annual IEEE International
Conference_Location :
Rochester, NY
Print_ISBN :
0-7803-1375-5
DOI :
10.1109/ASIC.1993.410822
