Parallel Port Pins

Hi,

I'm still a little confused with the output from a parallel port
(KCam, but I'm sure others are the same), looking at one axis, I see the
three pins Pulse, Direction and Enable, Direction is pretty obvious on or
off indicating forward or reverse, I assume the enable indicates that the
motor is to be activated, but what information does the pulse give me, is it
simply counting the pulses while the enable bit is set, or is there some
form of bit conversion to give me a number, either way how do I know the
pulse width etc.

Can anyone point me in the direction of somewhere to explain this, I
have searched the internet without any success in finding an explanation.


Thanks in advance.

Brad