PERFORMANCE LEVEL CONTROL IN A DATA PROCESSING APPARATUS
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United States of America Patent
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Issued Date -
Jul 27, 2023
app pub date -
Jun 26, 2020
filing date -
Jun 26, 2020
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Abstract
A single communication fabric for a data processing apparatus is provided. The fabric has an interconnection network to provide a topology of data communication channels between a plurality of data-handling functional units. The interconnection network has a first interconnection domain to provide data communication between a first subset of the data-handling functional units and a second interconnection domain to provide data communication between a second subset of the data-handling functional units. The power management circuitry is arranged to control a first performance level for the first interconnection domain independently from control of a second performance level for the second interconnection domain. Machine readable instructions and a method are provided to concurrently set performance levels of two different fabric domains to respective different operating frequencies.
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