Dual communication port sharing apparatus

Details Dual communication port sharing apparatus Dual communication port sharing apparatus

2005-08-02

2005-08-02

Hudspeth, David (Department: 2651)

Dynamic magnetic information storage or retrieval

Automatic control of a recorder mechanism

C360S075000

Reexamination Certificate

active

06924953

ABSTRACT:
An arbitration and data source selection mechanism arbitrating access to a shared communication port between a servo engine and a controller of a disc drive is disclosed. In a preferred embodiment, the arbitration and data source selection mechanism, the shared communication port, the servo engine and the controller collectively share a common die of an application specific integrate circuit (ASIC). Servo control code and control code are each loaded into the ASIC for operation of the disc drive. The servo engine is allowed to hold service of the shared serial port dedicated to the servo control code for any length of time required by the servo engine. During periods of non-use by the servo control code, the servo engine releases the shared serial port to the controller for dedicated use by the control code, for a predetermined period of time.

REFERENCES:
patent: 5255136 (1993-10-01), Machado et al.
patent: 5325247 (1994-06-01), Ehrlich et al.
patent: 5465343 (1995-11-01), Henson et al.
patent: 5477103 (1995-12-01), Romano et al.
patent: 5511179 (1996-04-01), Chai-I
patent: 5586306 (1996-12-01), Romano et al.
patent: 5587850 (1996-12-01), Ton-that
patent: 5757582 (1998-05-01), White et al.
patent: 5771131 (1998-06-01), Pirzadeh
patent: 5914828 (1999-06-01), Bruner et al.
patent: 5938745 (1999-08-01), Boyle
patent: 6279054 (2001-08-01), Boyle
patent: 6445522 (2002-09-01), Tsunoda et al.
patent: 6519104 (2003-02-01), Cloke et al.
patent: 6557113 (2003-04-01), Wallentine et al.
patent: 6584516 (2003-06-01), Hill
patent: 6624957 (2003-09-01), Yun
patent: 6678109 (2004-01-01), Kagami et al.
patent: 2002/0091888 (2002-07-01), Streitenberger et al.
patent: 02093755 (1990-04-01), None

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