Controller and method for controlling a buffered data transfer device

Controlling a buffered data transfer between a source and a destination by loading a source count value and a destination count value from a buffered data transfer device. A source delta value is computed by subtracting a source previous value from the source count value. The destination count value...

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Hauptverfasser: ARIMURA KENNETH K, THELIN GREGORY B, WILSON REBEKAH A
Format: Patent
Sprache:eng
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Zusammenfassung:Controlling a buffered data transfer between a source and a destination by loading a source count value and a destination count value from a buffered data transfer device. A source delta value is computed by subtracting a source previous value from the source count value. The destination count value is adjusted on the buffered data transfer device by adding the source delta value to the destination count value. A destination delta value is computed by subtracting a destination previous value from the destination count value. The source count value is adjusted on the buffered data transfer device by adding the destination delta value to the source count value. A new value for the source previous value is computed by adding the source count value and the destination delta value. A new value for the destination previous value is computed by adding the destination count value and the source delta value.