BIDIRECTIONAL DATA STORAGE FACILITY FOR BUS INTERFACE UNIT

A METHOD AND SYSTEM ARE PROVIDED FOR CONTROLLING DATA TRANSFER BETWEEN A SYSTEM MEMORY (24,26) CONNECTED TO A SYSTEM BUS (76) AND AT LEAST ONE INPUT/OUTPUT (I/O) DEVICE (28) CONNECTED TO AN I/O BUS (32) IN A COMPUTER SYSTEM (10). THE SYSTEM BUS IS COUPLED TO THE I/O BUS BY A BUS INTERFACE UNIT (64)...

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Bibliographische Detailangaben
Hauptverfasser:	TERENCE JOSEPH LOHMAN, RICHARD LOUIS HORNE, BECHARA FOUAD BOURY, SHERWOOD BRANNON, NADER AMINI
Format:	Patent
Sprache:	eng
Schlagworte:	CALCULATING COMPUTING COUNTING ELECTRIC DIGITAL DATA PROCESSING PHYSICS
Online-Zugang:	Volltext bestellen
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Beschreibung
Zusammenfassung:	A METHOD AND SYSTEM ARE PROVIDED FOR CONTROLLING DATA TRANSFER BETWEEN A SYSTEM MEMORY (24,26) CONNECTED TO A SYSTEM BUS (76) AND AT LEAST ONE INPUT/OUTPUT (I/O) DEVICE (28) CONNECTED TO AN I/O BUS (32) IN A COMPUTER SYSTEM (10). THE SYSTEM BUS IS COUPLED TO THE I/O BUS BY A BUS INTERFACE UNIT (64) COMPRISING A FIRST PAIR OF BUFFERS (125A, 125C) CONNECTED IN SERIES BETWEEN THE I/O BUS AND THE SYSTEM BUS, AND A SECOND PAIL OF BUFFERS (125B, 125D) CONNECTED IN SERIES BETWEEN THE I/O BUS AND THE SYSTEM BUS AND IN PARALLEL WITH THE FIRST PAIR OF BUFFERS. EACH OF THE BUFFERS IN EACH OF THE PAIRS IS USED FOR BIDIRECTIONAL DATA TRANSFER BETWEEN THE SYSTEM BUS AND THE I/O BUS. FIG.1