2-19. EXTERNAL SPEAKER HEADER(CN20)
1Vcc
2X
3INT BZ
4BUZ Z
1Vcc
2X
3INT BZ
4BUZ Z
Enable Internal Buzzer Enable External Buzzer
The pin assignments are as follows:
8
1
PIN | FUNCTION | PIN | ASSIGNMENT |
1 | TPTX+ | 5 | NOT USED |
2 | TPTX+ | 6 | TPRX- |
3 | TPRX+ | 7 | NOT USED |
4 | NOT USED | 8 | NOT USED |
2-21. VGA CRT CONNECTOR(CN19)
| 6 |
|
|
|
1 |
| 11 1 | Red |
|
| 2 | Green | ||
2 |
| |||
| 3 | Blue |
| |
3 |
| 13 | Horizontial | |
4 |
| 14 | Vertical | |
| 4, 9,11, 12 & 15 Not Used | |||
5 |
| |||
10 | 5 & 10 | Ground | ||
| 15 6, 7 & 8 | GND | ||
|
| |||
2-22. WATCHDOG CONNECTOR(CN17)
- : WD LED 
+:Vcc
~ Page 16 ~
