MDDN 251 - Controller wires

Controller wires

Have decided to take apart the end of the ps2 controller instead of scraping the copper wires. After stripping the wires back and researching more on them i found out that...
Brown____clk____(Clock)

Orange____Do_____(Command)

Red____Cs____(Attention)

Green____Di____(Data)

Black____GND____(Ground)

Yellow____3.3v____(3.3v)

Blue, i read this that i found on the internet.

7.5v triggers the feedback motor inside of the controller. Too use this you will have to use a digital pin to trigger a mosfet/transistor to supply the 7.5v.  

Not fully sure what purple is but i think it is..
Purple____Ack____(Acknowledge).