Sleep modes.

Hello!

Before putting too much time and effort into it myself, I thought I'd
ask if anyone here knows anything about sleep modes on the
BeagleBoard. First of all, I'm interested in what different kinds of
sleep modes are available. I'm especially interested in different
sleep states for the processor.

I guess I'll have to take a look at the reference manual for the
processor and some other technical documentation, but I thought I'd
ask here first.

Thanks in advance.