SLLU385A July 2024 – September 2024
The RXD (pin 4) of the transceiver, receive data, is routed to J3 and TP6. The signal path to the J3 header is pre-installed with a 0Ω series resistor, R21. An optional pullup resistor to VIO can be installed on R20, an optional pulldown resistor to GND can be installed on R22, and an optional filtering capacitor can be installed on C9.