Bull Hn Information Systems, Inc.

Martin M Massucci

Richard A Lemay

Thomas F Joyce

James W Keeley

Bruno DiPlacido, Jr

A processing unit tightly couples to a system bus which utilizes a split cycle bus protocol and includes a local memory which is accessible from such bus. The local memory couples to a high speed synchronous bus which operates according to a predetermined bus protocol. The processing unit includes a state machine which couples to the high speed synchronous bus and to the asynchronous system bus. The state machine emulates the predetermined bus synchronous protocol in transferring commands issued to the local memory from the system bus which uses the split cycle protocol.

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Burlington, MA, United States of America

Martin M Massucci