Safe programming of key information into non-volatile memory for a programmable logic device
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United States of America Patent
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Nov 27, 2012
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app pub date -
Mar 30, 2011
filing date -
Mar 30, 2011
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Abstract
A programmable logic device (PLD) is disclosed that includes a non-volatile memory; a shadow register; and a data shift register (DSR) configurable to receive control information from an external programming tool, wherein the DSR is configured to shift the control information into the shadow register if the PLD is in a first programming mode, the PLD being configurable to operate in the first programming mode using the control information stored in the shadow register without the control information being stored in the non-volatile memory.
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