System for controlling mode of operation of a data cache based on storing the DMA state of blocks by setting the DMA state to stall

System for controlling mode of operation of a data cache based on storing the DMA state of blocks by setting the DMA state to stall

A computer system for controlling the mode of operation of a data cache. When a DMA state machine detects a DMA cycle to a memory block, the machine interrupts the processor so the processor sets a new value of the DMA state to control the mode of cache operation associated with the block.

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Bibliographische Detailangaben
Hauptverfasser: MILLIGAN, PATRICK S, DUBOIS, GERRY R, LANDRY, RONALD J, JETER, JAY D
Format: Patent
Sprache:eng
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:A computer system for controlling the mode of operation of a data cache. When a DMA state machine detects a DMA cycle to a memory block, the machine interrupts the processor so the processor sets a new value of the DMA state to control the mode of cache operation associated with the block.