Controller arrangement for partial reconfiguration of a programmable logic device
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United States of America Patent
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Oct 26, 2004
Grant Date -
N/A
app pub date -
Jul 3, 2002
filing date -
Jul 3, 2002
priority date (Note) -
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Abstract
Method and apparatus for partial reconfiguration of a programmable logic device (PLD). In one embodiment, a configuration store is arranged for storage of configuration data for a selected subset of the reconfigurable resources of the PLD. A modification store is configured with addresses and associated data values. Each address in the modification store references an address in the configuration store, and each associated data value indicates a configuration state for one of the reconfigurable resources of the PLD. A controller is coupled to the configuration and modification stores and to the PLD. In response to a reconfiguration signal, the controller reads an address and associated data value from the modification store, updates the configuration store at the address read from the modification store with the associated data value, and downloads configuration data from the configuration store to the PLD.
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