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Is P0.18 and P0.21 necessary to debug the nrf52832 if SWDIO and SWDCLK are connected?

Hello,

We are currently designing the hardware for a production run of our product using the nrf52832 chip and would still like to have debugging capabilities with breakpoints. Are the SWDIO and SWDCLK lines sufficient (along with gnd and vdd) to debug with breakpoints or do we also need to connect the P0.18 (SWO) and P0.21(RESET) port pins also.. We will be using the SEGGER Flasher Arm device to program/debug the product. Thank you very much for your time and if you need any more information, I will gladly supply it.

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