Patent ID: 7925954

Claim:
An apparatus comprising: a first physical point-to-point link within an electronic system; a first component within the electronic system coupled with a first end of the first point-to-point link, the first component to transmit a first request over the first point-to-point link to initiate transition of the first point-to-point link from an active state to a low power state; a second component within the electronic system coupled with a second end of the first point-to-point link, the second component, in response to the request, to selectively allow or disallow the transition of the first point-to-point link from the active state to the low power state; a second physical point-to-point link within the electronic system having a first end coupled with the first component, the first component to transmit a second request over the second point-to-point link to initiate transition of the second point-to-point link from an active state to a low power state; and a third component within the electronic system coupled with a second end of the second point-to-point link, the third component, in response to the second request, to selectively allow or disallow the transition of the second point-to-point link from the active state to the low power state; wherein the first physical point-to-point link and the second point-to-point link are in different power states.