SPRUJC6A December 2024 – July 2025 AM2752-Q1 , AM2754-Q1
Table 12-135 lists the RS-485 interface input/output (I/O) signals.
| Module Pin | Device Level Signal | I/O(1) | Description | Module Pin Reset Value(2) |
|---|---|---|---|---|
| WKUP_UARTi(3) | ||||
| RX | WKUP_UARTi(3)_RXD | I | Serial data input | HiZ |
| TX | WKUP_UARTi(3)_TXD | O | Serial data output | 1 |
| DIR | WKUP_UARTi(3)_RTSn | O | RS-485 Direction | 1 |
| MCU_UARTi(3) | ||||
| RX | MCU_UARTi(3)_RXD | I | Serial data input | HiZ |
| TX | MCU_UARTi(3)_TXD | O | Serial data output | 1 |
| DIR | MCU_UARTi(3)_RTSn | O | RS-485 Direction | 1 |
| UARTi(3) | ||||
| RX | UARTi(3)_RXD | I | Serial data input | HiZ |
| TX | UARTi(3)_TXD | O | Serial data output | 1 |
| DIR | UARTi(3)_RTSn | O | RS-485 Direction | 1 |
For more information about device level signals (pull-up/down resistors, buffer type, multiplexing and others), see tables Pin Attributes and Pin Multiplexing in the device-specific Datasheet.