Power Modes in Embedded Processor

Hi,

I'll begin working soon with a DSP Processor (developed inside company).

The DSP can switch Power Mode from 'normal power mode' to D2 State.

I'd like to understand the Power Management and transitions between power modes.

I actually googled Power Mode D2, but found only some MSDN WIN8 explanation, while i'm interested in Embedded Processor.

Are you familiar with good guide / article on it?

Thank you very very much.

This explains the basic concepts of DSP power management schemes.

https://www.embedded.com/design/con...-techniques-help-achieve-faster-design-cycles

Essentially, the divide between processor power requirements (relatively constant between "sleep" and "awake") and I/O power requirements (variable and not always predictable except for MIN and MAX).

Management schemes, especially for imbedded, battery operated DSPs, can be quite complex.