Browse Prior Art Database

TAG TRANSITION METHOD for INTERLOCKED BUS OPERATION

IP.com Disclosure Number: IPCOM000039986D
Original Publication Date: 1987-Sep-01
Included in the Prior Art Database: 2005-Feb-01

Publishing Venue

IBM

Related People

Authors:
Bourke, DG Kelley, RA [+details]

Abstract

This article describes a method for achieving interlocked information transfers on asynchronous busses with increased speed of operation and applicability to repowered and unrepowered environments. The method disclosed herein is most suited to packet busses, a type of bus that is markedly superior in repowered environments. Fig. 1 is a general diagram of a bus. For purposes of this description, there are two types of units that may reside on a bus. Bus Unit (BU) - Bus Units participate actively in bus operations. During an operation, a pair of units exchange information. Repower Unit (RU) - Repower Units are normally transparent to bus operations. They have a threefold function: 1. Redrive - Refreshing bus signals to appropriate drive levels. (Image Omitted) 2.