In a word, yes.
Most TVs are a bit fussy about 50Hz on the VGA input, but will accept it on HDMI or Scart inputs.
You need to switch mode to 15K (non-scan doubled).
The core will then output composite sync on one sync line and a logic '1' on the other, which can be used to auto-switch the TV.
At least that's what our version of the core does, I believe the original is the same.
/MikeJ
