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📄 cam_generic_8s.v

📁 Using Block RAM for High-Performance Read.Write Cams
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//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[5]),
//                  `endif  
//                             .MATCH_OK(BUS_MATCH_OK[5]));

//CAM_RAMB4 CAM_X_RAMB4_6 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[6]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_6));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_6 (.BINARY_ADDR(MATCH_ARRAY_6), .MATCH_ADDR(ADDR_ARRAY_6),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[6]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[6]));

//CAM_RAMB4 CAM_X_RAMB4_7 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[7]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_7));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_7 (.BINARY_ADDR(MATCH_ARRAY_7), .MATCH_ADDR(ADDR_ARRAY_7),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[7]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[7]));

//CAM_RAMB4 CAM_X_RAMB4_8 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[8]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_8));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_8 (.BINARY_ADDR(MATCH_ARRAY_8), .MATCH_ADDR(ADDR_ARRAY_8),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[8]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[8]));

//CAM_RAMB4 CAM_X_RAMB4_9 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[9]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_9));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_9 (.BINARY_ADDR(MATCH_ARRAY_9), .MATCH_ADDR(ADDR_ARRAY_9),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[9]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[9]));

//CAM_RAMB4 CAM_X_RAMB4_10 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[10]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_10));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_10 (.BINARY_ADDR(MATCH_ARRAY_10), .MATCH_ADDR(ADDR_ARRAY_10),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[10]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[10]));

//CAM_RAMB4 CAM_X_RAMB4_11 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[11]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_11));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_11 (.BINARY_ADDR(MATCH_ARRAY_11), .MATCH_ADDR(ADDR_ARRAY_11),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[11]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[11]));

//CAM_RAMB4 CAM_X_RAMB4_12 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[12]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_12));

// Generate the Match Address                        
//ENCODE_4_LSB ENCODE_X_LSB_12 (.BINARY_ADDR(MATCH_ARRAY_12), .MATCH_ADDR(ADDR_ARRAY_12),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[12]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[12]));

//CAM_RAMB4 CAM_X_RAMB4_13 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[13]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_13));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_13 (.BINARY_ADDR(MATCH_ARRAY_13), .MATCH_ADDR(ADDR_ARRAY_13),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[13]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[13]));

//CAM_RAMB4 CAM_X_RAMB4_14 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[14]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_14));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_14 (.BINARY_ADDR(MATCH_ARRAY_14), .MATCH_ADDR(ADDR_ARRAY_14),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[14]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[14]));

//CAM_RAMB4 CAM_X_RAMB4_15 (.DATA_IN(DATA_IN[7:0]), .ADDR(ADDR[3:0]), WRITE_ENABLE(BUS_WRITE_ENABLE[15]),
//                         .ERASE_WRITE(ERASE_WRITE), .WRITE_RAM(WRITE_RAM), .CLK(CLK), .MATCH_ENABLE(MATCH_ENABLE),
//                         .MATCH_RST(MATCH_RST), .MATCH(MATCH_ARRAY_15));

// Generate the Match Address                         
//ENCODE_4_LSB ENCODE_X_LSB_15 (.BINARY_ADDR(MATCH_ARRAY_15), .MATCH_ADDR(ADDR_ARRAY_15),
//                  `ifdef use_addr_valid 
//                             .ADDR_VALID(BUS_ADDR_VALID[15]),
//                  `endif   
//                             .MATCH_OK(BUS_MATCH_OK[15]));


//Generate Top address CAM 32 words

ENCODE_1_MSB ENCODE_X_MSB (.BINARY_ADDR(BUS_MATCH_OK), 
                             .ADDR_LSB_0(ADDR_ARRAY_0), 
                             .ADDR_LSB_1(ADDR_ARRAY_1),
                             .MATCH_ADDR(MATCH_ADDR[`addr_width-1:0]),
                   `ifdef use_addr_valid 
                             .ADDR_VALID(ADDR_VALID),
                   `endif
                             .MATCH_OK(MATCH_OK));
                             
//Generate Top address CAM 64 words
//ENCODE_1_MSB ENCODE_X_MSB (.BINARY_ADDR(BUS_MATCH_OK), 
//                             .ADDR_LSB_0(ADDR_ARRAY_0), 
//                             .ADDR_LSB_1(ADDR_ARRAY_1),
//                             .ADDR_LSB_2(ADDR_ARRAY_2),
//                             .ADDR_LSB_3(ADDR_ARRAY_3),
//                             .MATCH_ADDR(MATCH_ADDR[`addr_width-1:0]), 
//                   `ifdef use_addr_valid 
//                             .ADDR_VALID(ADDR_VALID),
//                   `endif
//                             .MATCH_OK(MATCH_OK));

//Generate Top address CAM 128 words
//ENCODE_1_MSB ENCODE_X_MSB (.BINARY_ADDR(BUS_MATCH_OK), 
//                             .ADDR_LSB_0(ADDR_ARRAY_0), 
//                             .ADDR_LSB_1(ADDR_ARRAY_1),
//                             .ADDR_LSB_2(ADDR_ARRAY_2),
//                             .ADDR_LSB_3(ADDR_ARRAY_3),
//                             .ADDR_LSB_4(ADDR_ARRAY_4),
//                             .ADDR_LSB_5(ADDR_ARRAY_5),
//                             .ADDR_LSB_6(ADDR_ARRAY_6),
//                             .ADDR_LSB_7(ADDR_ARRAY_7),
//                             .MATCH_ADDR(MATCH_ADDR[`addr_width-1:0]),
//                   `ifdef use_addr_valid 
//                             .ADDR_VALID(ADDR_VALID),
//                   `endif 
//                             .MATCH_OK(MATCH_OK));

//Generate Top address CAM 256 words
//ENCODE_1_MSB ENCODE_X_MSB (.BINARY_ADDR(BUS_MATCH_OK), 
//                             .ADDR_LSB_0(ADDR_ARRAY_0), 
//                             .ADDR_LSB_1(ADDR_ARRAY_1),
//                             .ADDR_LSB_2(ADDR_ARRAY_2),
//                             .ADDR_LSB_3(ADDR_ARRAY_3),
//                             .ADDR_LSB_4(ADDR_ARRAY_4),
//                             .ADDR_LSB_5(ADDR_ARRAY_5),
//                             .ADDR_LSB_6(ADDR_ARRAY_6),
//                             .ADDR_LSB_7(ADDR_ARRAY_7),
//                             .ADDR_LSB_8(ADDR_ARRAY_8),
//                             .ADDR_LSB_9(ADDR_ARRAY_9),
//                             .ADDR_LSB_10(ADDR_ARRAY_10),
//                             .ADDR_LSB_11(ADDR_ARRAY_11),
//                             .ADDR_LSB_12(ADDR_ARRAY_12),
//                             .ADDR_LSB_13(ADDR_ARRAY_13),
//                             .ADDR_LSB_14(ADDR_ARRAY_14),
//                             .ADDR_LSB_15(ADDR_ARRAY_15),
//                             .MATCH_ADDR(MATCH_ADDR[`addr_width-1:0]),
//                   `ifdef use_addr_valid 
//                             .ADDR_VALID(ADDR_VALID),
//                   `endif 
//                             .MATCH_OK(MATCH_OK));



//Registered Outputs

always @ (posedge CLK or posedge GLOBAL_RST)
  begin
     if (GLOBAL_RST)
      begin
        R_MATCH_ADDR = 0;
        R_MATCH_OK = 0;
      end
     else
      begin
        R_MATCH_ADDR = MATCH_ADDR;
        R_MATCH_OK = MATCH_OK;
      end
  end     //Registered Outputs
  
endmodule //CAM_generic_8s   



  
  






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