Browse Prior Art Database

Dynamic Address Translator for I/O Channels

IP.com Disclosure Number: IPCOM000052245D
Original Publication Date: 1981-May-01
Included in the Prior Art Database: 2005-Feb-11

Publishing Venue

IBM

Related People

Authors:
Capowski, RS deVeer, JA Heller, AR Meschi, JW [+details]

Abstract

The pipelined Channel Dynamic Address translation (CDAT) mechanism described herein can be shared by multiple channels in a time divided and pipelined manner. It contains a 4096 entry Translation Lookaside Buffer (TLB) table having sufficient capacity to hold a translation entry per subchannel, and is designed to provide time interleaved handling of storage access requests received at different input ports of the mechanism. Consequently, a delay in translation associated with any one of the ports affects only channels associated with that port and not channels associated with other ports.