FIELD PROGRAMMABLE GATE ARRAY INCLUDING A NONVOLATILE USER MEMORY AND METHOD FOR PROGRAMMING
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United States of America Patent
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app pub date -
Nov 5, 2008
filing date -
Jan 21, 2005
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Abandoned
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Abstract
An integrated circuit includes a programmable logic unit and an on-chip non-volatile memory. A JTAG port, TAP controller circuit, and program/erase control circuitry provide user access to the non-volatile memory for storage of user data. The non-volatile memory may also be used to store device data such as a serial number, product identification number, date code, or security data. Portions of the non-volatile memory may be made unavailable to the user once programmed, while other portions of the non-volatile may remain available for user access.
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