System for transferring data between I/O devices and main or exp

Details System for transferring data between I/O devices and main or exp System for transferring data between I/O devices and main or exp

1993-04-14

1995-10-24

Lee, Thomas C.

Boots, shoes, and leggings

395400, 3642548, 3642551, 3642612, 364DIG1, G06F 1208, G06F 1210

Patent

active

054617219

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.

REFERENCES:
patent: 3839706 (1974-10-01), Borchsenius
patent: 4272815 (1981-06-01), Kadowaki et al.
patent: 4368513 (1983-01-01), Meltzer
patent: 4855936 (1989-08-01), Casey et al.
patent: 5095420 (1992-03-01), Eilert et al.
patent: 5237668 (1993-08-01), Blandy et al.
patent: 5367661 (1994-11-01), Hough et al.

Affiliated with

Also associated with

Rating

System for transferring data between I/O devices and main or exp does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System for transferring data between I/O devices and main or exp, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System for transferring data between I/O devices and main or exp will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1893145