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To manually specify
differential pairs,
proceed through test development up to the
IDENTIFY page.
Click the
Identify Differential Pairs button
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Automatic Detection
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 instructions on the Create
Differential Signals page and Transmitter
and Receiver Pins page.
onTAP stores the differential I/O pin declarations in
DiffPairsList.txt so that you can also
edit the file directly with your favorite text editor.
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