Extension pin for TB6560 2 axis Stepping motor controller

[fred]

Hello

Does any one know pin assign of "TB6560 2 axis CNC Stepping motor controller/driver board"?
I also need Open Drain / Totem Pole info.

I bought the board some months ago and noticed that Parallel port Pin #16 is used as ENABLE signal.
I need 1 more output pin except auxiliary connector.

Thank you in advance.

fred