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:
Nov. 26, 2002

Filed:

Feb. 02, 1999
Applicant:
Inventors:

Gary S. Dickinson, Yorba Linda, CA (US);

William W. Dennin, Lake Forest, CA (US);

Assignee:

QLogic Corporation, Aliso Viejo, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06F 1/200 ; G06F 1/300 ;
U.S. Cl.
CPC ...
G06F 1/200 ; G06F 1/300 ;
Abstract

In a controller integrated circuit, which controls the operation of a peripheral storage device, a transfer monitoring circuit that facilitates the monitoring of successful transfers from outside the controller integrated circuit. The circuit includes a counter circuit that counts the number of successful transfers, a value storing register, a comparison circuit to compare the counter value to the value stored in the register and generate a result. The transfer monitoring circuit speeds up the operation of the controller integrated circuit especially during recovery from error conditions. The monitoring circuit also allows for a more optimal use of a look-ahead cache.


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