UART¶
The QS standard defines three independent UART Ports (UART_A – UART_C). UART_A is used to output serial debugging information. UART_C supports hardware RTS/CTS handshake.
Pin | Signal | Description | type | I/O |
89 | UART_RXD_A | Receive Data input signal | 3V3 | I |
90 | UART_TXD_A | Transmit Data output signal | 3V3 | O |
91 | UART_RXD_B | Receive Data input signal | 3V3 | I |
92 | UART_TXD_B | Transmit Data output signal | 3V3 | O |
93 | UART_RXD_C | Receive Data input signal | 3V3 | I |
94 | UART_TXD_C | Transmit Data output signal | 3V3 | O |
95 | UART_CTS_C | Clear to Send input signal | 3V3 | I |
96 | UART_RTS_C | Request to Send output signal | 3V3 | O |
Note
Keep attention to the unusual DCE naming convention NXP is using for CTS(output)/RTS(input).
QS Standard Contact Group Index
Pins | Function | Pins | Function | Pins | Function | Pins | Function |
---|---|---|---|---|---|---|---|
1-4 | SPI | 5-10 | I2C | 11-14 | CAN | 15-18 | SAI |
19-35 | Ethernet | 36-42 | SD Interface | 43-48 | USB | 49-52 | Power Supply, Reset and Boot mode |
53-76 | 18-bit RGB Display Interface | 77-78 | Backlight and Display Control | 53-72 | Camera | 79-88 | MIPI DSI Display |
89-96 | UART | 97-100 | SPI | 1A,75A,76A,100A | PCIe | 25A,26A,50A,51A | USB3 Super Speed |