Browse Prior Art Database

System Interrupts I/Os saving

IP.com Disclosure Number: IPCOM000016076D
Original Publication Date: 2002-Jul-11
Included in the Prior Art Database: 2003-Jun-21

Publishing Venue

IBM

Abstract

A. Problem description In present systems, when a hardware designer wants to connect a lot of interrupts from an ASIC to a microprocessor, the natural way is to use an interrupt controller already existing (of the shelf) or to use any programming device (CPLD) to make a Boolean OR equation in order to make aware the microprocessor of an interrupt event. In the case of an amount of more than 10 interrupts and more than two ASICs, these solutions become very huge in term of cost and real estate on the raw card. B. Description of the invention