Method and apparatus for an ACPI compliant keyboard sleep key

摘要

A computer system includes a status register for receiving events which cause the computer system to change to a low power mode or back to a normal power mode. The status register is selectively coupled to a keyboard controller to receive an interrupt from the keyboard controller when a sleep/wake key is actuated on a keyboard. When the computer system is normally powered, the keyboard interrupt is not routed to the status register. If the computer system is powered down, the keyboard interrupt is routed so that actuation of the sleep/wake key will awake the computer system.