| 摘要 |
A switch circuit for switching input/output port includes a control unit, a built-in input/output (I/O) port, an external I/O port and a switch unit. The switch unit is electrically connected to the control unit, the built-in I/O port and the external I/O port. The switch unit receives a control signal and selectively forms a channel between the control unit and the built-in I/O port or between the control unit and the external I/O port accordingly. |
