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.
Patent No.:
Date of Patent:
Sep. 26, 1995
Filed:
Nov. 12, 1992
Applicant:
Inventors:
Craig A Walrath, Easley, SC (US);
Jimmy D Pike, Greenville, SC (US);
Gene F Young, Lexington, SC (US);
Assignee:
NCR Corporation, Dayton, OH (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395288 ; 395405 ; 395494 ; 364D / ; 3642402 ; 36424292 ; 3642466 ;
Abstract
An interleave lock arrangement for a computer system ensures the atomicity of a data transfer operation over a selected bus between a selected intelligent controller and a selected memory interleave, without interfering with data transfers over unselected buses between unselected intelligent controllers and unselected memory interleaves. An interleave lock signal issued by the selected intelligent controller over the selected bus is detected by and prevents only unselected intelligent controllers on the selected bus from executing bus cycles while the interleave lock signal is being asserted.