High speed/low speed interface with prediction cache
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United States of America Patent
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Oct 9, 2001
Grant Date -
N/A
app pub date -
Mar 3, 1998
filing date -
Mar 3, 1998
priority date (Note) -
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Abstract
The present invention provides a monolithic or discrete high speed/low speed interface that is capable of interfacing with the high speed subsystems of a data processing system and low speed subsystems of a data processing system. In one embodiment, the high speed/low speed interface subsystem of the present invention comprises a high speed interface for interfacing with high speed subsystems via a high speed bus, a low speed interface for interfacing with low speed subsystems via a low speed bus, a control circuitry coupled to both the high speed and low speed interfaces, and an internal bus coupled to the control circuitry and the high speed and low speed interfaces. The control circuitry controls the transfer of information between the interfaces. In a second embodiment of the present invention, the high speed/low speed interface subsystem of the present invention comprises all the elements of the first embodiment and a prediction unit. In a third embodiment of the present invention, the high speed/low speed interface subsystem comprises all the elements of the second embodiment and a memory controller. The embodiments of the present invention could be implemented with discrete components or could be implemented on a single semiconductor substrate.
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