Initial commit of OpenSPARC T2 design and verification files.
[OpenSPARC-T2-DV] / verif / model / verilog / niu / niu_enet_models / phy_clock_doubler_env.v
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3// OpenSPARC T2 Processor File: phy_clock_doubler_env.v
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35`timescale 1ns/10ps
36module phy_clock_doubler_env(rbc0,rbc1,
37 rbcx2);
38
39input rbc0; // input from external SERDES, clocks odd bytes
40input rbc1; // input from external SERDES, clocks even bytes
41output rbcx2; // doubled version of clocks
42
43wire rbc0_ext_del4; // rbc0_ext delayed 4 ns
44wire rbc1_ext_del4; // rbc1_ext delayed 4 ns
45
46assign #4000 rbc0_ext_del4 = rbc0;
47assign #4000 rbc1_ext_del4 = rbc1;
48
49assign rbcx2 = (~rbc0_ext_del4 & rbc0) |
50 (~rbc1_ext_del4 & rbc1);
51
52endmodule