Touch Plate Explanation please

net estop-out       => parport.0.pin-01-out
net xstep           => parport.0.pin-02-out
setp parport.0.pin-02-out-reset 1
setp parport.0.pin-03-out-invert 1
net xdir            => parport.0.pin-03-out
net ystep           => parport.0.pin-04-out
setp parport.0.pin-04-out-reset 1
setp parport.0.pin-05-out-invert 1
net ydir            => parport.0.pin-05-out
net zstep           => parport.0.pin-06-out
setp parport.0.pin-06-out-reset 1
net zdir            => parport.0.pin-07-out
net astep           => parport.0.pin-08-out
setp parport.0.pin-08-out-reset 1
net adir            => parport.0.pin-09-out
net spindle-cw      => parport.0.pin-14-out
net spindle-pwm     => parport.0.pin-16-out
net xenable         => parport.0.pin-17-out
net estop-ext       <= parport.0.pin-10-in
net probe-in        <= parport.0.pin-11-in-not
net home-x          <= parport.0.pin-12-in
net home-y          <= parport.0.pin-13-in

net estop-out       => parport.0.pin-16-out

net spindle-pwm     => parport.0.pin-01-out