AN 705: Scalable 10G Ethernet MAC using 1G/10G PHY

ID 683066
Date 5/13/2016
Document Table of Contents Enable Ref Clock Sharing

When you set the parameter SHARED_REFCLK_EN to 1, the design example will enable the ref clock sharing and only 1 set of pll_ref_clk_10g, pll_ref_clk_1g, cdr_ref_clk_10g and cdr_ref_clk_1g is needed. These ref clock signals will be used across all channels. There will be N number of rx_recovered_clk regardless of ref clock sharing setting, where N=number of channels.