Method and apparatus to directly access a peripheral device when central processor operations are suspended

摘要

A method and apparatus for facilitating direct access to computer resources by a peripheral device while the computer's CPU is in a sleeping state. A peripheral device having a circuit to detect the power management state of a central processor, a first interface to couple the device to the central processor if the circuit detects the first power management state, and a second interface to couple the device to a peripheral device if the circuit detects the second power management state.