Serial interface read-back drive circuit

Details Serial interface read-back drive circuit Serial interface read-back drive circuit

1997-10-01

2000-06-13

Burgess, Glenton B.

Dynamic magnetic information storage or retrieval

General processing of a digital signal

Head amplifier circuit

360 51, G11B 509

Patent

active

060756632

ABSTRACT:
A serial interface read-back drive circuit for reading back the data stored in various control registers within the read/write channel circuit of a magnetic disk drive comprises a control unit for controlling the operation of the magnetic disk drive, a serial write interface circuit for providing serial data, a serial data enable signal and a serial clock signal to enable various control states of the read/write channel circuit under the control of the control unit, a read-back enable signal generating unit for generating a read-back enable signal by receiving a read-timing set value of the control unit, a serial clock signal and a serial data enable signal, and a read-back unit for reading back the data of the state control registers as applied to the control unit during the enable interval of the read-back enable signal when the control unit controls the read-back enable control.

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