1.5 Transceiver Clocking
(Ask a Question)Clocking of transceivers use several dedicated resources that are embedded in each device. All XCVR designs require a XCVR_REF_CLK to provide and clock input to a XCVR_TXPLL, which provides the necessary clocks for the XCVR_LANE or XCVR_LANES. The XCVR_TXPLL synthesizes the input reference clock to generate the high-speed serial clock used in the transmitter PMA. XCVR_REF_CLKs and XCVR_TXPLLs are shared and used for several high-speed serial protocols.