Browse Prior Art Database

The Event Bus

IP.com Disclosure Number: IPCOM000015697D
Original Publication Date: 2002-Apr-01
Included in the Prior Art Database: 2003-Jun-20

Publishing Venue

IBM

Abstract

This is the communication method of each event information between devices. In a traditional method, the hardware interrupt from each device needs the specific hardware interrupt controller to inform any processor of it, also a processor needs the shared memory for the synchronization between each software task. In this method, all of above events, including the hardware interrupt and software task synchoniation, can be informed to all devices connected the event bus simultaneously without the specific hardware interrupt controller or the shared memory. Figure 1 indicates the traditional system with hardware interrupt controller. Figure 2 indicates the event bus system. Figure 3 indicates the event bus timing chart. Figure 4 indicates the event bus flow chart. Figure 1