Improved disk drives through the computational power of DSP

摘要

Skyrocketing TPI, while improving servo performance and reducing drive cost, require today's diskdrive designers to move to an extended use of embedded digital-signal processing controllers. By migrating functionality, traditionally frozen in hardware, to user programmable firmware, utilizing the millions of instructions per second (MIPS) already available from the embedded DSP processor, drive designers can add new or improved servo capability. This migration will reduce costs and allow drive makers to improve yields, densities, and performance, and with adaptability, extend drive lifetime.