Patent ID: 7760749
Filing Date: 2010-07-20
Classification: H04L

Abstract:
1. An Ethernet physical layer receiver for receiving a plurality of Ethernet physical layer (PHY) signals simultaneously transmitted through a plurality of duplex channels, the Ethernet physical layer receiver comprising: a deskew first-in first-out (FIFO) module, including a plurality of deskew FIFO buffers, for respectively holding the Ethernet PHY signals of the duplex channels, wherein the Ethernet PHY signals of the duplex channels are respectively retrieved from the deskew FIFO buffers for further processing through read points of the deskew FIFO buffers; a deskew control module, coupled to the deskew FIFO module, for deriving a scrambler seed signal from an idle period data of the Ethernet PHY signals transmitted through a first one of the duplex channels, determining expected values of the idle period data of the Ethernet PHY signals transmitted through a second one and a third one of the duplex channels according to the scrambler seed signal of the first one, and comparing the expected values with the true idle period data of the second one and the third one to determine location adjustments of the read points of the deskew FIFO buffers of the second one and the third one; wherein the read points of the deskew FIFO buffers of the second one and the third one in the deskew FIFO module are changed according to the location adjustments until the Ethernet PHY signals of the duplex channels read from the deskew FIFO buffers through the read points are successfully deskewed.