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:
Jul. 26, 1994
Filed:
Oct. 15, 1991
Applicant:
Inventors:
Nader Amini, Boca Raton, FL (US);
Bechara F Boury, Boca Raton, FL (US);
Sherwood Brannon, Boca Raton, FL (US);
Richard G Hofmann, Boca Raton, FL (US);
Terence J Lohman, Boca Raton, FL (US);
Assignee:
International Business Machines Corp., Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
395275 ; 395425 ; 395575 ;
Abstract
A DMA controller with error circuitry which detects DMA error conditions is disclosed. The error circuitry causes the DMA controller to perform completion tasks before terminating a DMA transfer, advantageously providing a DMA controller which may exit gracefully upon detection of an error condition with the potential of error recovery.