Abstract: A method and a system for generating a behavioral model for a device having a plurality of driver pins and receiver pins. The method and system includes connecting the plurality of driver and receiver pins to a test apparatus including an input stimulation means, a voltage measurement means, and a current measurement means, stimulating a first set of the plurality of receiver pins using the input stimulation means, performing voltage measurements at selected ones of the plurality of driver pins using the voltage measurement means, stimulating a second set of the plurality of receiver pins using the input stimulation means, performing current measurements at selected ones of the plurality of driver pins using the current measurement means, and creating the behavioral model using the voltage measurements and the current measurements.

Abstract: A circuit element incorporating a logic circuit and a constant address number signal source which serves distinguish one circuit element from others that are otherwise similar, has two inputs (A) and (B), a low output (L) and a high output (H). This element utilizes the address portions of respective digital signal bytes provided respectively to its two outputs, to determine whether the A input will go to the low output and the B input to the high output or vice versa. The element includes, in addition to the address source, a detector for null address portions at each output and a switch responsive to the null detector for substituting the internally stored address number for the input address when a null address portion is detected.

Abstract: An address (n) is associated with a sort element (30) so that input signals are compared with each other, or with the address (n) in the case of a null input (N). Several elements (30) are interconnected to provide unique signal routing from any input to a particular output, depending upon a characteristic of an input signal itself without reference to other input signals.