MATX-6551 COM
来自ARM Wiki
文件:MATX-6551 COM1-2，COM3-4，JCOM1-4，JCOM5-8.jpg
MATX-6551 COM1-2，COM3-4，JCOM1-4，JCOM5-8
COM1-2A：
| Pin | 信号名称 |
|---|---|
| 1 | COM1_DCD |
| 2 | COM1_RXD |
| 3 | COM1_TXD |
| 4 | COM1_DTR |
| 5 | GND |
| 6 | COM1_DSR |
| 7 | COM1_RTS |
| 8 | COM1_CTS |
| 9 | COM1_RI |
COM1 - 2B（Debug）：
| Pin | 信号名称 |
|---|---|
| 1 | NC |
| 2 | COM2_RXD |
| 3 | COM2_TXD |
| 4 | NC |
| 5 | GND |
| 6 | NC |
| 7 | NC |
| 8 | NC |
| 9 | NC |
COM3-4A：
| Pin | 信号名称 |
|---|---|
| 1 | COM3_B |
| 2 | COM3_RXD/A |
| 3 | COM3_TXD |
| 4 | NC |
| 5 | GND |
| 6 | NC |
| 7 | NC |
| 8 | NC |
| 9 | NC |