Two T's . One S's. ATTESA. Thats how Nissan spelled it.
Here some information on the ATTESA system that was part of a press release. Lets you know how the system works.
http://rbmotoring.com/gallery/album151
The system in an R32 is pretty slow and very rear biased. The R33 and R34 system is faster and will bring the front wheels in a bit quicker.
The Nissan racecars had adjustable torque split control.