Writing through spi without calling dwt_configure() and dwt_initialise()

Hi everyone,
Does anyone know, if it is possible to write on SFD register without calling dwt_configure(), reset_DW1000() and dwt_initialise() methods? Or do ineed to wake dw1000 up before writing?
Because I could read devId without waking it up.
Thank you.

I find out it is not needed. This title can be closed.