ID:15278 JTAG port <name> is connected to a pin with multiple fanouts. This is not legal. The pin must only drive the JTAG port.

CAUSE: The specified JTAG port is connected to a pin with multiple fan-outs. However, the JTAG port should be connected to a dedicated pin that only drives the JTAG port.

ACTION: Modify the design so that the JTAG port(s) connect to a dedicated I/O pin(s) without other fan-outs.