"All I asked for was a chance and I've been given that," the 22-year-old told the Evening Chronicle.
"I wanted a run of games on which to be judged and the manager has given me that. That's what I've been getting and if it continues then I'll be delighted. I want to show people I'm good enough to be in there playing at this level.
"If I'm not then I'll hold my hands up and shake everyone's hand at the end of the season.
"Even in my short time at this club I've seen players come and go and if they want to bring in another defender then that's fine by me. All I can say is that I'll fight for a place as long as I'm a Newcastle United player."
It must be hard for Caldwell to concentrate on his game with all the speculation regarding Jonathan Woodgate arriving in the press, but he certainly looks to be a promising player that the club should make every effort to hold on to.