To manually specify differential pairs, proceed through test development, to the SETTINGS PAGE and click the Identify Differential Pairs button.
onTAP automatically recognizes and accounts for differential I/O pairs as they are declared in the BSDL.
Specify Differential I/O Manually
If your application does not declare differential I/O pins in the BSDL file, you can declare them within onTAP prior to test generation so that they are properly controlled in the test vectors.
Follow the on-screen instruction on the Create Differential Signals page and Transmitter and Receiver Pins page.