module  P_NCO(
                 		clk,
                 		rstn,
                 		clr,
                 		clr_acc,
                 		pha,

		 		s1,
		 		s2,
		 		s3,
		 		
		 		s1_o,
		 		s2_o,
		 		s3_o,

                                fcw,

                                cos,
                                sin
                );

input               clk;
input               rstn;
input               clr;
input               clr_acc;
input   [15:0]      pha;

input	[15:0]	    s1;
input	[15:0]	    s2;
input	[15:0]	    s3;

output	[15:0]	    s1_o;	
output	[15:0]	    s2_o;
output	[15:0]	    s3_o;

output   [15:0]     cos;
output   [15:0]     sin;


input     [47:0]      fcw;


reg	[15:0]		pha_r;
always@(posedge clk or negedge rstn)
	if(!rstn)
		pha_r	<=	16'd0;
	else
		pha_r	<=	pha;

wire	[18:0]	pha0;

PIPE3_ACC_48BIT	inst_pipe(.clk(clk),.rstn(rstn),.in(fcw),.clr(clr_acc),.ptw(pha),.s_o_1(s1_o),.s_o_2(s2_o),.s_o_3(s3_o),.s_i_1(s1),.s_i_2(s2),.s_i_3(s3),.out(pha0));

PH2AMP inst_ph2amp_0(
       		.clk(clk)	,
       		.rstn(rstn)	,
                .pha_map(pha0)  ,
       		.sin_o(sin)	,
       		.cos_o(cos)	
       		);

endmodule