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Concurrent Command Fetching For A Multiple Device I/O Controller

IP.com Disclosure Number: IPCOM000051503D
Original Publication Date: 1981-Feb-01
Included in the Prior Art Database: 2005-Feb-10

Publishing Venue

IBM

Related People

Authors:
Brown, LW Chisholm, DR Farrell, RH [+details]

Abstract

A multiple-device input/output (I/O) controller is described whereby a device command may be fetched from a host processor main store and command set-up processing initiated for a second I/O device while a data transfer operation is underway with a first I/O device. The embodiment described herein is intended for use with an IBM Series/1 computer and, as such is constructed for attachment to the Series/1 I/O channel interface bus.