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Implementation of Last Tag Indicators Using Illegal Tag Table Entries

IP.com Disclosure Number: IPCOM000038042D
Original Publication Date: 1989-Oct-01
Included in the Prior Art Database: 2005-Jan-31

Publishing Venue

IBM

Related People

Authors:
Bailey, RN Mansfield, RL [+details]

Abstract

Disclosed is a circuit implemented within a DMA Controller to detect illegal tag table entries, and to use the occurrence of an illegal entry to signal the controller that all DMA transfers are complete.