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parameter PS2_DATA      = 4'h0;

parameter STATUS        = 4'h2;

parameter CNTRL         = 4'h4;

`VARIANT`MB

ps2_micro_reg

(

   .clk                ( clk              ),

   .reset              ( reset            ),

   .enable             ( enable           ),

   .cs                 ( cs               ),

   .wr                 ( wr               ),

   .rd                 ( rd               ),

   .addr               ( addr[3:0]        ),

   .byte_lanes         ( 1'b1             ),

   .wdata              ( wdata[7:0]       ),

   .rdata              ( rdata            ),

   .ps2_data_rdata     ( rcv_data         ),

   .ps2_data_dec       ( ps2_data_rd      ),

   .ps2_data_cs    (),

   .wdata_buf_cs (),

   .wdata_buf_dec (),

   .wdata_buf_wr_0 (),

   .status_cs (),

   .status_dec (),

   .cntrl_cs (),

   .cntrl_dec (),

   .cntrl_wr_0 (),

   .status_rdata       ({!buffer_empty   ,

                          rcv_data_avail ,

                          busy           ,

                          rx_parity_error,

                          rx_parity_rcv  ,

                          rx_parity_cal  ,

                          rx_frame_error ,

                          tx_ack_error }  ),

   .cntrl              ( cntrl            ),

   .cntrl_rdata        ( cntrl            ),

   .next_cntrl         ( cntrl            ),

   .wdata_buf          ( wdata_buf        ),

   .next_wdata_buf     ( wdata_buf        )

);

always@(posedge clk)

if (reset)

  begin

    ps2_data_read_stb <= 1'b0;

   end

else

  begin

   ps2_data_read_stb  <= (  enable &&  ps2_data_rd  && rd );

  end

assign   ps2_rx_clear      = cntrl[0] ? read :rd && cs && enable && ps2_data_rd;

assign        poll_enable  =   cntrl[0];