Semiconductor device and data processing system
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Nov 16, 2004
Grant Date -
Jun 6, 2002
app pub date -
Dec 4, 2001
filing date -
Dec 4, 2000
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A semiconductor device which has an internal circuit for performing a circuit operation corresponding to a signal inputted or outputted through an input/output interface circuit adapted to a serial bus. The semiconductor device has a non-volatile storage circuit for storing identification data. Internal identification data stored in the non-volatile storage circuit is compared with external identification data included in an input signal supplied through the serial bus by a comparator circuit. A control circuit is responsive to a match detecting signal generated by the comparator circuit to perform a circuit operation corresponding to an input signal subsequently supplied through the serial bus to change the internal identification data stored in the non-volatile storage circuit.
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