![](/images/new-backgrounds/1256918/25691865x1.webp)
HUAWEI MC509 CDMA LGA Module |
|
Hardware Guide | Description of the Application Interfaces |
Figure 3-7 Connection of the UART interface in the MC509 module (DCE) with the host (DTE)
The RS-232 Transceivers can be used to connect the MC509 module to the RS-232- C interface. In this connection, the complementary metal oxide semiconductor (COMS) level and the Electronic Industries Association (EIA) level are converted mutually.
For detailed application of the MC509 UART interface, see the HUAWEI LGA Module UART Design Guide.
It is recommended that set the pins related to UART interface as test points on the DTE for debug.
3.6 USB Interface
The MC509 is compliant with USB 2.0 full speed protocol. The USB interface is powered directly from the 3.3 V supply. The USB input/output lines are compatible with the USB 2.0 3.3 V signal specifications. 0shows the circuit of the USB interface.
Table
Pin No. |
| Pin Name | I/O | Description |
|
|
|
|
|
|
|
|
|
|
86 |
| USB_DP | I/O | USB data signal D+ |
|
|
|
|
|
85 |
| USB_DM | I/O | USB data signal D- |
|
|
|
|
|
Issue 01 | Huawei Proprietary and Confidential | 33 | |
Copyright © Huawei Technologies Co., Ltd. | |||
|
|