Patent ID: 9008128
Filing Date: 2015-04-14
Classification: H04J,H04L

Abstract:
1. A method for frequency synchronization of a multiport device, the method comprising: recovering a clock frequency of a master port of a first device linked to the multiport device at a slave port of the multiport device; locking a clock frequency of the slave port to the recovered-clock frequency of the master port of the first device; storing, in a first frequency register associated with the slave port, frequency data; and synchronizing a clock frequency of at least one master port of the multiport device with the locked clock frequency of the slave port by coupling the first frequency register to a second frequency register associated with at least one master port, wherein the stored frequency data is indicative of a difference between the recovered-clock frequency of the master port of the first device and a local-clock frequency of the multiport device.