s12intv2.h

freescale 协处理器应用相关实例

/*****************************************************************************
                                                  COPYRIGHT (c) FREESCALE 2005  
                                                                           
 File Name          :    $RCSfile: S12INTV2.h,v $					           
                                                                           
 Current Revision :      $Revision: 1.0 $                                  
                                                                           
 PURPOSE: header file for S12X Interrupt register block	    			     
                                                                           
 DESCRIPTION:  Defines the s12x Interrupt register block as a datastructure of              
               type tINTERRUPT.                           
                                                                           
 UPDATE HISTORY                                                            
 REV  AUTHOR    DATE        DESCRIPTION OF CHANGE                          
 ---  ------    --------    ---------------------                          
 1.0  r32151    24/02/05    Initial coding based on S12INTV1.h       


     *******************************************************************
     * File created by: Freescale East Kilbride MCD Applications Group *
     *******************************************************************

                                                                          
******************************************************************************/
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#ifndef S12INTV2_H			/*prevent duplicated includes */
#define S12INTV2_H

#include "S12_COMMON.h"

typedef union uCFDATA
  {
  tU08	byte;
  struct
    {
    tU08 priolvl:3;		/* priority level */
    tU08 rsv	:4;
    tU08 rqst	:1;		/* Xgate request */
    }bit;
  }tCFDATA;

/* bit masks for CFDATA */
#define RQST		0x80	/*bit mask	*/
#define PRIOLVL0	0	
#define PRIOLVL1	1
#define PRIOLVL2	2
#define PRIOLVL3	3
#define PRIOLVL4	4
#define PRIOLVL5	5
#define PRIOLVL6	6
#define PRIOLVL7	7

typedef struct				   /* Interrupt module used on the S12XDP256	*/
  {
           tU08		  rsv0;	    /* reserved (maintaining memory map)	     */
  volatile tU08        ivbr;      /* Interrupt Vector Base Register          */
           tU08		  rsv[4];	 /* reserved (maintaining memory map)	     */
  volatile tU08        xgprio;    /* Xgate Interrupt Priority Config Reg     */
  volatile tU08        cfaddr;    /* Interrupt Request Config Address Reg    */
  volatile tCFDATA     cfdata[8]; /* Interrupt Request Config Data Registers */
  }tINT;

#endif /* S12INTV2_H	*/