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Subversion Repositories zet86

[/] [zet86/] [trunk/] [soc/] [aceusb/] [rtl/] [aceusb.v] - Diff between revs 52 and 53

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Rev 52 Rev 53
Line 109... Line 109... 
  .flago(access_ack)
 
  .flago(access_ack)
 
);
 
);
 
 
 
 
 
/* Main FSM */
 
/* Main FSM */
 
 
 
 
 
reg [1:0] state;
 
reg  state;
 
reg [1:0] next_state;
 
reg  next_state;
 
 
 
 
 
localparam
 
localparam
 
  IDLE = 2'd0,
 
  IDLE = 1'd0,
 
  WAIT = 2'd1,
 
  WAIT = 1'd1;
 
  ACK  = 2'd2;
 
 
 
 
 
 
 
  assign op = wb_cyc_i & wb_stb_i;
 
  assign op = wb_cyc_i & wb_stb_i;
 
 
 
 
 
always @(posedge wb_clk_i) begin
 
always @(posedge wb_clk_i) begin
 
  if(wb_rst_i)
 
  if(wb_rst_i)
Line 152... Line 151... 
      if(access_ack) begin
 
      if(access_ack) begin
 
        wb_ack_o = 1'b1;
 
        wb_ack_o = 1'b1;
 
        access_write = 1'b0;
 
        access_write = 1'b0;
 
        load_adr_dat = 1'b0;
 
        load_adr_dat = 1'b0;
 
        access_read = 1'b0;
 
        access_read = 1'b0;
 
        next_state = ACK;
 
 
 
      end
 
 
 
    end
 
 
 
 
 
 
 
    ACK: begin
 
 
 
      if(!op) begin
 
 
 
        wb_ack_o = 1'b0;
 
 
 
        next_state = IDLE;
 
        next_state = IDLE;
 
      end
 
      end
 
    end
 
    end
 
  endcase
 
  endcase
 
end
 
end

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