BigPatents India

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 (P2 220, and P3 222), each being in a predetermined fixed state, and at least one configuration pin (224-230) associated with a parameter to be adjusted. Jumpers on the system board to which the integrated circuit (100) is mounted connect the mounting pad of each configuration pin (224-230) with the mounting pad of a selected program select pin (P2 220 and P3 222). Consequently, when the integrated circuit (100) is mounted on the system board, each configuration pin (224-230) receives a selected value which internal configuration circuitry (200) detects and causes the corresponding parameter to be adjusted accordingly. Any of the program select pins (P2 220, and P3 222) 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. (FIG). 2