| 摘要 |
PURPOSE: To provide the printed circuit board wherein a socket for in-circuit emulator connection is incorporated in its design stage so that the software of the printed circuit board for mounting the CPU can easily be debugged. CONSTITUTION: The CPU main body 20 is mounted on the printed circuit board 10 for mounting the CPU, and the socket 30 for in-circuit emulator connection is provided to the printed circuit board 10 so as to facilitate the software debugging; and a switching socket 40 is provided so as to perform smooth switching between the CPU main body(IC) and an in-circuit emulator and a tri-state buffer 50 is provided to maintain a high-impedance state while the CPU main body (IC) is at an operation stop. |
