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Programmable Processor Availability Control

IP.com Disclosure Number: IPCOM000055886D
Original Publication Date: 1980-Sep-01
Included in the Prior Art Database: 2005-Feb-13

Publishing Venue

IBM

Related People

Authors:
Schoonover, DA [+details]

Abstract

It is known that different input/output (I/O) devices have different data rate requirements and yet they may be controlled by a common I/O controller. The percentage of time an I/O controller is available to control an I/O device is inversely proportional to the percentage of time required to transfer data to and from the system central processing unit (CPU). Therefore, the amount of time the I/O controller has to process data can be controlled by controlling the rate at which data is transferred to and from the system CPU.