251sb.h

mcs51,2051,x86系列MCU

/*
 *  Copyright (c) 1995, Intel Corporation
 *
 *  $Workfile:   251sb.h  $
 *  $Revision:   1.6  $
 *  $Modtime:   Apr 17 1996 08:01:52  $
 *
 *  Purpose:      C-language include file for 251SA/SB/SP/SQ... devices.
 *
 *
 *
 *
 *
 *  Compiler:       
 *
 *  Ext Packages:   
 *
 * 
 *
 */

#ifndef MC80251_INC
#define MC80251_INC

struct _SFR_BITS
{
   unsigned B7 : 1;
   unsigned B6 : 1;
   unsigned B5 : 1;
   unsigned B4 : 1;
   unsigned B3 : 1;
   unsigned B2 : 1;
   unsigned B1 : 1;
   unsigned B0 : 1;
};

intrinsic void SET_VECTOR(long vector,void (*)(void));
intrinsic void EI(void);
intrinsic void DI(void);


#define _BIT(byte,bit) (*(struct _SFR_BITS near *)&(byte)).B##bit

   /* SFRs */
#define ACC    (*((near char *)0xe0)) 
#define B      (*((near char *)0xf0))
#define PSW    (*((near char *)0xd0))
#define PSW1   (*((near char *)0xd1))
#define SP     (*((near char *)0x81))
#define SPL    (*((near char *)0x81))
#define SPH    (*((near char *)0xbd))
#define DPL    (*((near char *)0x82))
#define DPH    (*((near char *)0x83))
#define DPXL   (*((near char *)0x84))
#define PCON   (*((near char *)0x87))
#define IPH0   (*((near char *)0xb7))
#define IPL0   (*((near char *)0xb8))
#define IF0    (*((near char *)0xc2))
#define CCON   (*((near char *)0xd8))
#define CMOD   (*((near char *)0xd9))
#define CCAPM0 (*((near char *)0xda))
#define CCAPM1 (*((near char *)0xdb))
#define CCAPM2 (*((near char *)0xdc))
#define CCAPM3 (*((near char *)0xdd))
#define CCAPM4 (*((near char *)0xde))
#define CL     (*((near char *)0xe9))
#define CCAP0L (*((near char *)0xea))
#define CCAP1L (*((near char *)0xeb))
#define CCAP2L (*((near char *)0xec))
#define CCAP3L (*((near char *)0xed))
#define CCAP4L (*((near char *)0xee))
#define CH     (*((near char *)0xf9))
#define CCAP0H (*((near char *)0xfa))
#define CCAP1H (*((near char *)0xfb))
#define CCAP2H (*((near char *)0xfc))
#define CCAP3H (*((near char *)0xfd))
#define CCAP4H (*((near char *)0xfe))
#define SCON   (*((near char *)0x98))
#define SBUF   (*((near char *)0x99))
#define SADEN  (*((near char *)0xb9))
#define SADDR  (*((near char *)0xa9))
#define TL0    (*((near char *)0x8a))
#define TH0    (*((near char *)0x8c))
#define TL1    (*((near char *)0x8b))
#define TH1    (*((near char *)0x8d))
#define TL2    (*((near char *)0xcc))
#define TH2    (*((near char *)0xcd))
#define TCON   (*((near char *)0x88))
#define TMOD   (*((near char *)0x89))
#define T2CON  (*((near char *)0xc8))
#define T2MOD  (*((near char *)0xc9))
#define RCAP2L (*((near char *)0xca))
#define RCAP2H (*((near char *)0xcb))
#define WDTRST (*((near char *)0xa6))
#define WCON   (*((near char *)0xa7))
#define P0     (*((near char *)0x80))
#define P1     (*((near char *)0x90))
#define P2     (*((near char *)0xa0))
#define P3     (*((near char *)0xb0))
#define IP     (*((near char *)0xb8))
#define IE     (*((near char *)0xa8))
#define IE0    (*((near char *)0xa8))

#define TF1    _BIT(TCON,7)
#define TR1    _BIT(TCON,6)
#define TF0    _BIT(TCON,5)
#define TR0    _BIT(TCON,4)
#define IE1    _BIT(TCON,3)
#define IT1    _BIT(TCON,2)
#define TCON_IE0    _BIT(TCON,1)
#define IT0    _BIT(TCON,0)

#define SM0    _BIT(SCON,7)
#define SM1    _BIT(SCON,6)
#define SM2    _BIT(SCON,5)
#define REN    _BIT(SCON,4)
#define TB8    _BIT(SCON,3)
#define RB8    _BIT(SCON,2)
#define TI     _BIT(SCON,1)
#define RI     _BIT(SCON,0)

#define EA     _BIT(IE,7)
#define EC     _BIT(IE,6)
#define ET2    _BIT(IE,5)
#define ES     _BIT(IE,4)
#define ET1    _BIT(IE,3)
#define EX1    _BIT(IE,2)
#define ET0    _BIT(IE,1)
#define EX0    _BIT(IE,0)

#define PT2    _BIT(IP,5)
#define PS     _BIT(IP,4)
#define PT1    _BIT(IP,3)
#define PX1    _BIT(IP,2)
#define PT0    _BIT(IP,1)
#define PX0    _BIT(IP,0)

#define CY     _BIT(PSW,7)
#define AC     _BIT(PSW,6)
#define F0     _BIT(PSW,5)
#define RS1    _BIT(PSW,4)
#define RS0    _BIT(PSW,3)
#define OV     _BIT(PSW,2)
#define UD     _BIT(PSW,1)
#define P      _BIT(PSW,0)

#define CF     _BIT(CCON, 7)
#define CR     _BIT(CCON, 6)
#define CCF4   _BIT(CCON, 4)
#define CCF3   _BIT(CCON, 3)
#define CCF2   _BIT(CCON, 2)
#define CCF1   _BIT(CCON, 1)
#define CCF0   _BIT(CCON, 0)

#define TF2    _BIT(T2CON,7)
#define EXF2   _BIT(T2CON,6)
#define RCLK   _BIT(T2CON,5)
#define TCLK   _BIT(T2CON,4)
#define EXEN2  _BIT(T2CON,3)
#define TR2    _BIT(T2CON,2)
#define C_T2   _BIT(T2CON,1)
#define CP_RL2 _BIT(T2CON,0)

   /* Interrupt Vectors */

#define INT0   0xff0003
#define TIMER0 0xff000b
#define INT1   0xff0013
#define TIMER1 0xff001b
#define SERIO  0xff0023
#define TIMER2 0xff002b
#define PCA    0xff0033
#define TRAP   0xff007b

#endif