Integrated circuit with authomatic pin-strapping configuration

Details Integrated circuit with authomatic pin-strapping configuration Integrated circuit with authomatic pin-strapping configuration

2005-08-30

2005-08-30

Siek, Vuthe (Department: 2825)

Computer-aided design and analysis of circuits and semiconductor

Nanotechnology related integrated circuit design

C716S030000, C716S030000

Reexamination Certificate

active

06938235

ABSTRACT:
An integrated circuit, in which one or more internal parameters may be automatically configured for a particular application, includes a plurality of program select pins, each being in a predetermined fixed state, and at least one configuration pin associated with a parameter to be adjusted. Jumpers on the system board to which the integrated circuit is mounted connect the mounting pad of each configuration pin with the mounting pad of a selected program select pin. Consequently, when the integrated circuit is mounted on the system board, each configuration pin receives a selected value which internal configuration circuitry detects and causes the corresponding parameter to be adjusted accordingly. Any of the program select pins may have functions in addition to the configuration function. When the system board is powered on or undergoes a reset, a processor internal to the chip scans each the configuration pin to determine its value. The processor then sets internal registers accordingly, completing the configuration process, and the chip may begin normal operation.

REFERENCES:
patent: 5519632 (1996-05-01), Chen et al.
patent: 5900739 (1999-05-01), Gaglani
patent: 6338032 (2002-01-01), Chen
patent: 6678873 (2004-01-01), Kohashi et al.
patent: 6725441 (2004-04-01), Keller et al.
patent: 2003/0041233 (2003-02-01), Su et al.

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