| 1 | In the center-off state, the pin bit follows the port bit. | |
| 2 | A. Recommend set pins to input mode when you use ADC function. | |
| 3 | The back base should have open space for lift forks go in. The top base should have 4 lift rings. | |
| 4 | A communication port control circuit is disclosed, including a ringing indicative pin. | |
| 5 | The computer-like mechanical bit pin binary array is more accurate and causes less friction over the clock's long life. |