PDK information required

I am posting this here as it could apply to the 911 or the Boxster/Cayman. I am after information on the operation of the PDK gearbox. It appears that there are 9 solenoids on the valve body, I am any wiring information on these or details of what each solenoid does. There seems to be no information on the internet that I can find, it is just a black box.

Any help appreciated.

MC