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 Funktion Pins Funktion Pins Funktion Pins Funktion
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