The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Apr. 25, 1995

Filed:

Jun. 30, 1991
Applicant:
Inventors:

Edward C King, Fremont, CA (US);

Anton Goeppel, Burgau, DE;

Assignee:

NCR Corporation, Dayton, OH (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395325 ; 364D / ; 3642281 ; 3642292 ; 3642301 ; 3642302 ; 3642383 ; 3642401 ; 3642405 ; 3642409 ; 3642412 ; 36424231 ; 3642426 ; 3642427 ; 36424291 ; 36424292 ; 36424691 ; 395200 ;
Abstract

A work station, including a central processing unit (CPU), first, second and third integrated circuit interface chips, connected to an external bus, memory and peripheral unit, respectively, and a local bus, coupled to the CPU and chips. Each chip includes an internal bus interconnecting operating units disposed therein. Each chip is adapted to operate at the same clock frequency as the CPU, but with operational signals generated on its respective internal bus independently of the CPU. The internal bus on the first chip includes a burst mode control line for selected operating units. An operating unit obtaining access to the internal bus and activating its burst mode control line is effective to lock the internal bus for a plurality of operating cycles, during which data is transferred continuously in a burst mode over the internal bus.


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