DAP - Debug access port flexibility

I am new to the nRF52840 and the whole Nordic environment, so this may be a pretty basic question. I couldn't find any other blog entries that fit.

I am developing a manufacturing PCBA level test for a nRF52840 based product. We are developing custom firmware for this mfg test. The only port that I have access to without building a bed-of-nails fixture is the  DAP - Debug access port.

Can the  DAP - Debug access port be configured as a standard serial or I2C port, etc.? Can I send commands over this port and get responses back if my firmware supports that?

I'm not sure of the restrictions on using the  DAP - Debug access port, and reading the documentation and web searches have not answered this question.

Thanks so much for your help.

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