class mcureg_trans; 

  rand bit[3  :0] wrmask		;
  rand bit[2  :0] fb_st_info		;
  rand bit[31 :0] run_time		;
  rand bit[31 :0] instr_num		;
  rand bit[31 :0] mcu_param[3:0]     	;          // MCU parameter 0~3

  rand bit[31 :0] wrmask_time		;
  rand bit[31 :0] fb_st_info_time	;
  rand bit[31 :0] run_time_time		;
  rand bit[31 :0] instr_num_time	;
  rand bit[31 :0] mcu_param_time[3:0]   ;

  rand bit[31 :0] mcu_result  [3:0]     ;          // MCU result 0~3
  rand bit[31 :0] mcu_cwfr    [3:0]     ;          // Carrier frequency ctrl word 0~3
  rand bit[31 :0] mcu_gapr    [7:0]     ;          // Carrier phase     ctrl word 0~3
  rand bit[31 :0] mcu_ampr    [3:0]     ;          // Carrier Amplitude           0~3
  rand bit[31 :0] mcu_baisr   [3:0]     ;          // Carrier Bais                0~3
  rand bit[1  :0] mcu_intp_sel          ;	   //2'b00:HBF;2'b01:Nearest-neighbor interpolator;
  rand bit        mcu_nco_pha_clr	;
  rand bit[15 :0] mcu_rz_pha		;

constraint cstr {
  wrmask		== 4'b1111	;
  wrmask_time		>= 0	;
  fb_st_info_time 	>= 0	;
  run_time_time	  	>= 0	;
  instr_num_time  	>= 0 	;
  mcu_param_time[0]   	>= 0	;
  mcu_param_time[1]   	>= 0	;
  mcu_param_time[2]   	>= 0	;
  mcu_param_time[3]   	>= 0	;
  wrmask_time		<= 2000	; 
  fb_st_info_time 	<= 2000	;
  run_time_time	  	<= 2000	;
  instr_num_time  	<= 2000 ;
  mcu_param_time[0]   	<= 2000	;
  mcu_param_time[1]   	<= 2000	;
  mcu_param_time[2]   	<= 2000	;
  mcu_param_time[3]   	<= 2000	;   
}

  function new();
  endfunction

endclass : mcureg_trans