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:
Oct. 24, 1995
Filed:
Apr. 14, 1993
Roger L Cormier, Pleasant Valley, NY (US);
Robert J Dugan, Hyde Park, NY (US);
Kenneth J Fredericks, Poughkeepsie, NY (US);
Peter H Gum, Poughkeepsie, NY (US);
Moon J Kim, Wappingers Falls, NY (US);
Allen H Preston, Poughkeepsie, NY (US);
Richard J Schmalz, deceased, late of Wappingers Falls, NY (US);
Charles F Webb, Poughkeepsie, NY (US);
Leslie W Wyman, Poughkeepsie, NY (US);
International Business Machines Corporation, Armonk, NY (US);
Abstract
Enables an I/O channel program to use IDAWs (indirect data address words) to control data transfers from/to an I/O (input/output) device to/from either or both of ES (expanded storage) and/or system MS (main storage), in which data moved to/from ES does not move through MS. ES and MS are plural electronic storage media in a data processing system, and the I/O device is any I/O device selectable by the system. Intermixing of data transfers between ES and MS may be controlled by a single IDAW list accessed by a channel control word (CCW) in a channel program in a data transfer direction indicated in the CCW without any channel mode change.