Product information identification in a head disc assembly

Details Product information identification in a head disc assembly Product information identification in a head disc assembly

1997-12-22

2000-05-02

Renner, Craig A.

Dynamic magnetic information storage or retrieval

Record transport with head stationary during transducing

Disk record

360106, 360108, G11B 586, G11B 3312

Patent

active

060579811

ABSTRACT:
An apparatus for improving the operational performance of a disc drive through the identification of vital product information associated with a head-disc assembly (HDA) of the disc drive. The disc drive comprises a printed wiring assembly (PWA) housing control circuitry for the disc drive. The HDA of the disc drive is operably coupled to the printed wiring assembly and includes a rotatable disc to which data are written by a controllably positionable head. A non-volatile memory device is mounted on the HDA and operably coupled to the PWA so that, when the disc drive is initialized, the PWA verifies the configuration of the HDA before proceeding with the initialization of the disc drive, thereby preventing errors and damage to the disc drive as a result of the installation of a new, replacement PWA in the disc drive, or the downloading of new, incorrect firmware to the PWA.

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Data Sheet for Serial EEPROM, 1996 Microchip Technology Inc. 24AA00/24LC00/24C00; pp. 1-12.

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