Patent ID: 7240222
Filing Date: 2007-07-03
Classification: G06F

Abstract:
1. In a computer system that includes a processor, a memory, and a state machine that controls a power-state of the computer system by outputting a signal to at least one power supply unit, the power supply unit configured to output at least a power good signal indicative of an output power state as either power on or power off, an embedded controller coupled to the state machine and being responsive to at least one of the power good signal, the embedded controller comprising: an input in the embedded controller for receiving an external shut off event; and a circuit, in response to the external shut off event, configured to feed the state machine a controller power off signal as long as the power good signal is indicative of the power on state, wherein the external shut off event originates from at least one of: a power button switch, a modem and a local area network (LAN), and wherein the embedded controller selectively disables the external shut off event.