Power Management for Ports

This section summarizes the specific power management requirements for ports.

6. Compliance with Device Class Power Management Reference Specification

The "Device Class Power Management Reference Specification" for the communications device class provides definitions of the OnNow device power states (D0–D3) for serial devices. The specification also covers device functionality expected in each power state and the possible Wakeup event definitions for the class. Power states D0 and D3 are required; other states are recommended.

7. Support Wakeup Events defined in "Device Class Power Management Reference Specification"

For PC 97, the ability to cause a Wakeup event as defined in the "Device Class Power Management Reference Specification" is a required feature.