SPRUJ28F November 2021 – August 2025 AM68 , AM68A , TDA4AL-Q1 , TDA4VE-Q1 , TDA4VL-Q1
The UART module controls the function of interface pins based on the selected operating mode. The pin functions selected in each operating mode are shown in the table below.
| Mode | TXD Pin Function | RTSn Pin Function | CTSn Pin Function | RXD Pin Function |
|---|---|---|---|---|
| UART / USART | TXD | RTSn | CTS | RXD |
| RS-485 | TXD | RTSn (DIR) | Not used | RXD |
| IrDA | IRTX | SD | Not used | RXD |
| CIR | RCTX | SD | Not used | RXD |