Browse Prior Art Database

Method of Minimizing Poll Handshaking Time for an I/O Channel

IP.com Disclosure Number: IPCOM000050602D
Original Publication Date: 1982-Nov-01
Included in the Prior Art Database: 2005-Feb-10

Publishing Venue

IBM

Related People

Authors:
Bhansali, MM Cannon, JW [+details]

Abstract

The polling sequence handshaking time for a data processor I/O channel is reduced by overlapping the poll set-up time for a subsequent I/O device request with the poll depropagation time for a preceding I/O device request. This enables an increased cycle steal I/O data transfer rate and improved interrupt service time.