General Description: When using the mode pins (MD0, MD1, MD2) and/or TDO in a design as an I/O, the pin numbers do not show up in the pad report.
解决方案
To insure that the signal is mapped to the correct pin, use the library symbols MD0, MD1, MD2 and TDO. The pin number will not show up in the pad report, but the signal will be mapped to the specified pin. To verify this, EPIC can be opened and used to view the signal to make sure it goes to the correct pin.