As a DME/DME is the preferred way to fix the position by the FMS (no GPS), only DME values might be mentioned. The second best conventional fix is Bearing/DME, that is what you are referring to.
It's been a while since I have been on the 320, and I don't have access to a maual, but we just tuned a VOR and compared the Bearingpointer and the DME to the FMS map. Distance accurate and pointer pointing at the tuned station - accuracy check ok.
Nic