Trial version for 30 days, after that you can order full version of cs6 or subscription to cc.
Which version are you downloading? Prior to Creativ Cloud, the trial installers are the same as the registered version, you simply have to supply the serial number you already have (you can no longer purchase older product licenses from Adobe).
Which version you are downloading and from where ? For downloading CC version, go to https://creative.adobe.com/ and sign in with your subscription ID , then it will show download and not download trial. For non subscription ID it will show download trial.