Use all 5 UART/Serial ports

I want to use all the serial ports, but I am confused by the pinout.
UART3 shows RTS/CTS. Where is the RX/TX?

For the existing layout, you cannot use all 5 ports. You can assign GP4-5 to either UART2 or UART3.

If you want to use UART3, you can tap it on the FPC connector (J9) but note that it is using 1.8v.

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