Method and apparatus for serial link down detection

An apparatus and method for serial link down detection are described. In one embodiment, the method includes the detection of an initial link down condition of a serial link. In one embodiment, the initial link down condition is detected, for example, when a transition from a normal signaling voltage level to a squelch signaling voltage level is detected at a receiver input. When an initial link down condition is detected, the issuance of a link down signal is delayed for a predetermined period of time from the detection of the squelch voltage over the serial link. In one embodiment, the link down signal is asserted if a data error is detected following the predetermined period of time from the detection of the squelch voltage. Other embodiments are described and claimed.