Turbo CNC Doubt

Hello all

I have a 3 axis mini milling machine with an interface which use L297 and
L298 integrates (Step/Dir interface)

I´ve configurated turbo CNC like This:

Port $378:

Y axis:
Pin1: Direction (I really dont know the localization of this pin)
Pin2:Step
Pin3:Enable

Y axis:
Pin4: Direction
Pin5:Step
Pin6:Enable

X axis:
Pin7 Direction
Pin8:Step
Pin9:Enable

My question: I only want to turn on the motor when I will use the motor in
that axis (On With Step)

How can I do this?.

thanks anyway

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