TailCorr/rtl/z_dsp/rate_adapter.v

//+FHDR--------------------------------------------------------------------------------------------------------
//  Company: 
//-----------------------------------------------------------------------------------------------------------------
//  File Name             :    Z_dsp.v
//  Department            :    
//  Author                :    thfu
//  Author's Tel          :     
//-----------------------------------------------------------------------------------------------------------------
//  Relese History
//  Version     Date            Author          Description
//  0.2         2024-10-09      thfu            to fit the addition of 8 interpolation
//-----------------------------------------------------------------------------------------------------------------
//  Keywords            :       
//
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//  Parameter
//
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//  Purpose                 :
//                      
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//  Target Device:        
//  Tool versions:        
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//  Reuse Issues
//  Reset Strategy: 
//  Clock Domains: 
//  Critical Timing:
//  Asynchronous I/F:
//  Synthesizable (y/n): 
//  Other:
//-FHDR--------------------------------------------------------------------------------------------------------

module 	rate_adapter	 	
(
 input                  rstn
,input                  clk
,input                  en
,input                  vldi
,input  signed [15:0]   din0
,input  signed [15:0]   din1
,input  signed [15:0]   din2
,input  signed [15:0]   din3
,input  signed [15:0]   din4
,input  signed [15:0]   din5
,input  signed [15:0]   din6
,input  signed [15:0]   din7
,output signed [15:0]   dout0
,output signed [15:0]   dout1
,output signed [15:0]   dout2
,output signed [15:0]   dout3
,output reg             vldo
		 	);		



reg signed [15:0]	doutf_0;
reg signed [15:0]	doutf_1;	
reg signed [15:0]	doutf_2;	
reg signed [15:0]	doutf_3;

always@(posedge clk or negedge rstn)
    if(!rstn)  begin
    		doutf_0  <=  0;
    		doutf_1  <=  0;	
    		doutf_2  <=  0;	
    		doutf_3  <=  0;	
    end
    else if(!en)  begin
    		doutf_0  <=  din0;
    		doutf_1  <=  din1;	
    		doutf_2  <=  din2;	
    		doutf_3  <=  din3;	
    end 
    else  begin
    		doutf_0  <=  din4;
    		doutf_1  <=  din5;	
    		doutf_2  <=  din6;	
    		doutf_3  <=  din7;	
    end
    
assign    dout0  =  doutf_0; 
assign    dout1  =  doutf_1;
assign    dout2  =  doutf_2;
assign    dout3  =  doutf_3;

syncer #(1, 1) sync_diff7_syncer (clk, rstn, vldi, vldo);  

endmodule