module wdt(
pclk,
presetn,
penable,
pwrite,
pwdata,
paddr,
psel,
speed_up,
scan_mode,
wdt_en_external,
wdt_int,
wdt_int_n,
wdt_sys_rst,
wdt_sys_rst_n,
prdata
);
input                              pclk             ;
input                              presetn          ;
input                              penable          ;
input                              pwrite           ;
input                    [31:0]    pwdata           ;
input          		[7:0]      paddr            ;
input                              psel             ;
input                              speed_up         ;
input                              scan_mode        ;
input                              wdt_en_external  ;
output                             wdt_int          ;
output                             wdt_int_n        ;
output                             wdt_sys_rst      ;
output                             wdt_sys_rst_n    ;
output                   [31:0]    prdata           ;
wire                               wr_en            ;
wire                               rd_en            ;
wire                      [3:0]    byte_en          ;
wire         [5:0]                 reg_addr         ;
wire                     [31:0]    ipwdata          ;
wire                     [31:0]    iprdata          ;
wire        [31:0]                 cnt              ;
wire                               wdt_int          ;
wire        [31:0]                 top              ;
wire                               restart          ;
wire                               wdt_en           ;
wire                               eoi_en           ;
wire                      [7:0]    rpl              ;
wire                               rmod             ;
wire                               sys_rst          ;
wire                               wdt_int_n        ;
wire                               wdt_sys_rst      ;
wire                               wdt_sys_rst_n    ;
wire                               wdt_clk_en       ;
wire                               int_wdt_clk_en   ;
wire                               pause            ;
wire                               int_pause        ;
parameter        WDT_ADDR_LHS = 5'd7;
parameter        WDT_CLK_EN = 1'b0;
parameter        WDT_PAUSE = 1'b0;
wdt_biu # 
(   
    .WDT_ADDR_LHS       (WDT_ADDR_LHS     )
)
U_WDT_BIU
(
    .pclk               (pclk             ),
    .presetn            (presetn          ),
    .psel               (psel             ),
    .penable            (penable          ),
    .pwrite             (pwrite           ),
    .paddr              (paddr            ),
    .pwdata             (pwdata           ),
    .prdata             (prdata           ),
    .wr_en              (wr_en            ),
    .rd_en              (rd_en            ),
    .reg_addr           (reg_addr         ),
    .ipwdata            (ipwdata          ),
    .iprdata            (iprdata          )
);
wdt_regfile U_WDT_REGFILE
(
    .pclk               (pclk             ),
    .presetn            (presetn          ),
    .clk_en             (int_wdt_clk_en   ),
    .wdt_en_external    (wdt_en_external  ),
    .wr_en              (wr_en            ),
    .rd_en              (rd_en            ),
    .reg_addr           (reg_addr         ),
    .cnt                (cnt              ),
    .wdt_int            (wdt_int          ),
    .ipwdata            (ipwdata          ),
    .iprdata            (iprdata          ),      
    .top                (top              ),
    .restart            (restart          ),
    .wdt_en             (wdt_en           ),
    .eoi_en             (eoi_en           ),
    .rpl                (rpl              ),
    .rmod               (rmod             ) 
);
wdt_isrc   
U_WDT_ISRC
(
    .pclk               (pclk             ),
    .presetn            (presetn          ),
    .wdt_clk_en         (int_wdt_clk_en   ),
    .top                (top              ),
    .restart            (restart          ),
    .wdt_en             (wdt_en           ),
    .eoi_en             (eoi_en           ),
    .rpl                (rpl              ),
    .rmod               (rmod             ),
    .pause              (int_pause        ),
    .speed_up           (speed_up         ),
    .scan_mode          (scan_mode        ),
    .cnt                (cnt              ),
    .wdt_int            (wdt_int          ),
    .sys_rst            (sys_rst          )
);
assign  int_wdt_clk_en = (WDT_CLK_EN == 1) ? wdt_clk_en : 1'b1;
assign  int_pause      = (WDT_PAUSE == 1)  ? pause : 1'b0;
assign  wdt_int_n      = ~wdt_int;
assign  wdt_sys_rst    = sys_rst;
assign  wdt_sys_rst_n  = ~sys_rst;
endmodule