Rate and give feedback:
Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document.
Note: Even the most advanced machine translation cannot match the quality of professional translators.
Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
40-Pin Extended Port
Table 4-3 Pin definition
Pin |
Name |
Level |
Pin |
Name |
Level |
|---|---|---|---|---|---|
1 |
+3.3V |
3.3V |
2 |
+5.0V |
5V |
3 |
I2C2-SDA |
3.3V |
4 |
+5.0V |
5V |
5 |
I2C2-SCL |
3.3V |
6 |
GND |
- |
7 |
GPIO0 |
3.3V |
8 |
TXD0 |
3.3V |
9 |
GND |
- |
10 |
RXD0 |
3.3V |
11 |
GPIO1 |
3.3V |
12 |
NC |
- |
13 |
NC |
- |
14 |
GND |
- |
15 |
GPIO2 |
3.3V |
16 |
TXD1 |
3.3V |
17 |
+3.3V |
3.3V |
18 |
RXD1 |
3.3V |
19 |
SPI-MOSI |
3.3V |
20 |
GND |
- |
21 |
SPI-MISO |
3.3V |
22 |
NC |
- |
23 |
SPI-CLK |
3.3V |
24 |
SPI-CS |
3.3V |
25 |
GND |
- |
26 |
GPIO10 |
3.3V |
27 |
GPIO8 |
3.3V |
28 |
GPIO9 |
3.3V |
29 |
GPIO3 |
3.3V |
30 |
GND |
- |
31 |
GPIO4 |
3.3V |
32 |
NC |
- |
33 |
GPIO5 |
3.3V |
34 |
GND |
- |
35 |
GPIO6 |
3.3V |
36 |
+1.8V |
1.8V |
37 |
GPIO7 |
3.3V |
38 |
TXD-3559 |
3.3V |
39 |
GND |
- |
40 |
RXD-3559 |
3.3V |
- The NC pin has no connection on the board.
- The maximum output current of 1.8 V is 500 mA, the maximum output current of 3.3 V is 500 mA, and the maximum output current of 5 V is 1 A.
