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专利名称:Programmable logic device and method of
testing
发明人:Trent Whitten,Kam Fai So申请号:US11452714申请日:20060613公开号:US07463060B1公开日:20081209
专利附图:
摘要:A programmable logic device may comprise a plurality of programmableresources and non-volatile configuration memory to store configuration data by which toconfigure the programmable resources. Test override circuitry may determine a test
mode and selectively override the configuration data stored in the non-volatileconfiguration memory during the test mode for configuring the programmableresources based at least in part on test configuration data other than the configurationdata stored in the non-volatile memory. A buffer may be operable to drive aconfiguration select node for at least one of the programmable resources for
designating a configuration therefore based on the configuration data of the non-volatilememory. The test override circuitry may comprise a pull-down circuit operable, whenenabled dependent on the test configuration data, to drive the buffer with a high/lowlevel capable of overriding a state of the non-volatile configuration memory.
申请人:Trent Whitten,Kam Fai So
地址:Beaverton OR US,Beaverton OR US
国籍:US,US
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