Patent ID: 8005178
Filing Date: 2011-08-23
Classification: G06F,H04J

Abstract:
1. A physical layer device comprising: a first port configured to embed a first clock into data transmitted over a first physical medium; a second port configured to embed a second clock into data transmitted over a second physical medium; a first selection module configured to output the first clock to the first port in response to one of a locally generated clock and a recovered clock; a second selection module configured to output the second clock to the second port in response to one of the locally generated clock and the recovered clock; a third selection module configured to output a first selected clock in response to one of a first recovered clock from the first port and a second recovered clock from the second port; a fourth selection module configured to output a second selected clock; and a clock synchronizer configured to generate the recovered clock selectively in response to one of the first selected clock and the second selected clock.