CHONG

Excellent! Thanks for clearing things up - appreciate it .

Thanks! But the rise/fall time need to be characterized. If not, specify what device is or close to it

Since you provide neither the IBIS model nor the schematic for the JTAG-SMT2, can you describe the output driver configuration, like the source termination value if any and the trace length between the output driver and the SMT connector. In addition, I would like to know the current strength as well as the rise and fall time of the driver. These technical information should have been included in the datasheet. So, do you even have a technical datasheet for the JTAG-SMT2?