AT89X52.H

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/*-------------------------------------------------------------------------- 
AT89X52.H 
 
Header file for the low voltage Flash Atmel AT89C52 and AT89LV52. 
Copyright (c) 1995-1996 Keil Software, Inc.  All rights reserved. 
--------------------------------------------------------------------------*/ 
 
#ifndef AT89X52_HEADER_FILE 
#define AT89X52_HEADER_FILE 1 
 
/*------------------------------------------------ 
Byte Registers 
------------------------------------------------*/ 
sfr P0      = 0x80; 
sfr SP      = 0x81; 
sfr DPL     = 0x82; 
sfr DPH     = 0x83; 
sfr PCON    = 0x87; 
sfr TCON    = 0x88; 
sfr TMOD    = 0x89; 
sfr TL0     = 0x8A; 
sfr TL1     = 0x8B; 
sfr TH0     = 0x8C; 
sfr TH1     = 0x8D; 
sfr P1      = 0x90; 
sfr SCON    = 0x98; 
sfr SBUF    = 0x99; 
sfr P2      = 0xA0; 
sfr IE      = 0xA8; 
sfr P3      = 0xB0; 
sfr IP      = 0xB8; 
sfr T2CON   = 0xC8; 
sfr T2MOD   = 0xC9; 
sfr RCAP2L  = 0xCA; 
sfr RCAP2H  = 0xCB; 
sfr TL2     = 0xCC; 
sfr TH2     = 0xCD; 
sfr PSW     = 0xD0; 
sfr ACC     = 0xE0; 
sfr B       = 0xF0; 
 
/*------------------------------------------------ 
P0 Bit Registers 
------------------------------------------------*/ 
sbit P0_0 = 0x80; 
sbit P0_1 = 0x81; 
sbit P0_2 = 0x82; 
sbit P0_3 = 0x83; 
sbit P0_4 = 0x84; 
sbit P0_5 = 0x85; 
sbit P0_6 = 0x86; 
sbit P0_7 = 0x87; 
 
/*------------------------------------------------ 
PCON Bit Values 
------------------------------------------------*/ 
#define IDL_    0x01 
 
#define STOP_   0x02 
#define PD_     0x02    /* Alternate definition */ 
 
#define GF0_    0x04 
#define GF1_    0x08 
#define SMOD_   0x80 
 
/*------------------------------------------------ 
TCON Bit Registers 
------------------------------------------------*/ 
sbit IT0  = 0x88; 
sbit IE0  = 0x89; 
sbit IT1  = 0x8A; 
sbit IE1  = 0x8B; 
sbit TR0  = 0x8C; 
sbit TF0  = 0x8D; 
sbit TR1  = 0x8E; 
sbit TF1  = 0x8F; 
 
/*------------------------------------------------ 
TMOD Bit Values 
------------------------------------------------*/ 
#define T0_M0_   0x01 
#define T0_M1_   0x02 
#define T0_CT_   0x04 
#define T0_GATE_ 0x08 
#define T1_M0_   0x10 
#define T1_M1_   0x20 
#define T1_CT_   0x40 
#define T1_GATE_ 0x80 
 
#define T1_MASK_ 0xF0 
#define T0_MASK_ 0x0F 
 
/*------------------------------------------------ 
P1 Bit Registers 
------------------------------------------------*/ 
sbit P1_0 = 0x90; 
sbit P1_1 = 0x91; 
sbit P1_2 = 0x92; 
sbit P1_3 = 0x93; 
sbit P1_4 = 0x94; 
sbit P1_5 = 0x95; 
sbit P1_6 = 0x96; 
sbit P1_7 = 0x97; 
 
sbit T2   = 0x90;       /* External input to Timer/Counter 2, clock out */ 
sbit T2EX = 0x91;       /* Timer/Counter 2 capture/reload trigger & dir ctl */ 
 
/*------------------------------------------------ 
SCON Bit Registers 
------------------------------------------------*/ 
sbit RI   = 0x98; 
sbit TI   = 0x99; 
sbit RB8  = 0x9A; 
sbit TB8  = 0x9B; 
sbit REN  = 0x9C; 
sbit SM2  = 0x9D; 
sbit SM1  = 0x9E; 
sbit SM0  = 0x9F; 
 
/*------------------------------------------------ 
P2 Bit Registers 
------------------------------------------------*/ 
sbit P2_0 = 0xA0; 
sbit P2_1 = 0xA1; 
sbit P2_2 = 0xA2; 
sbit P2_3 = 0xA3; 
sbit P2_4 = 0xA4; 
sbit P2_5 = 0xA5; 
sbit P2_6 = 0xA6; 
sbit P2_7 = 0xA7; 
 
/*------------------------------------------------ 
IE Bit Registers 
------------------------------------------------*/ 
sbit EX0  = 0xA8;       /* 1=Enable External interrupt 0 */ 
sbit ET0  = 0xA9;       /* 1=Enable Timer 0 interrupt */ 
sbit EX1  = 0xAA;       /* 1=Enable External interrupt 1 */ 
sbit ET1  = 0xAB;       /* 1=Enable Timer 1 interrupt */ 
sbit ES   = 0xAC;       /* 1=Enable Serial port interrupt */ 
sbit ET2  = 0xAD;       /* 1=Enable Timer 2 interrupt */ 
 
sbit EA   = 0xAF;       /* 0=Disable all interrupts */ 
 
/*------------------------------------------------ 
P3 Bit Registers (Mnemonics & Ports) 
------------------------------------------------*/ 
sbit P3_0 = 0xB0; 
sbit P3_1 = 0xB1; 
sbit P3_2 = 0xB2; 
sbit P3_3 = 0xB3; 
sbit P3_4 = 0xB4; 
sbit P3_5 = 0xB5; 
sbit P3_6 = 0xB6; 
sbit P3_7 = 0xB7; 
 
sbit RXD  = 0xB0;       /* Serial data input */ 
sbit TXD  = 0xB1;       /* Serial data output */ 
sbit INT0 = 0xB2;       /* External interrupt 0 */ 
sbit INT1 = 0xB3;       /* External interrupt 1 */ 
sbit T0   = 0xB4;       /* Timer 0 external input */ 
sbit T1   = 0xB5;       /* Timer 1 external input */ 
sbit WR   = 0xB6;       /* External data memory write strobe */ 
sbit RD   = 0xB7;       /* External data memory read strobe */ 
 
/*------------------------------------------------ 
IP Bit Registers 
------------------------------------------------*/ 
sbit PX0  = 0xB8; 
sbit PT0  = 0xB9; 
sbit PX1  = 0xBA; 
sbit PT1  = 0xBB; 
sbit PS   = 0xBC; 
sbit PT2  = 0xBD; 
 
/*------------------------------------------------ 
T2CON Bit Registers 
------------------------------------------------*/ 
sbit CP_RL2= 0xC8;      /* 0=Reload, 1=Capture select */ 
sbit C_T2 = 0xC9;       /* 0=Timer, 1=Counter */ 
sbit TR2  = 0xCA;       /* 0=Stop timer, 1=Start timer */ 
sbit EXEN2= 0xCB;       /* Timer 2 external enable */ 
sbit TCLK = 0xCC;       /* 0=Serial clock uses Timer 1 overflow, 1=Timer 2 */ 
sbit RCLK = 0xCD;       /* 0=Serial clock uses Timer 1 overflow, 1=Timer 2 */ 
sbit EXF2 = 0xCE;       /* Timer 2 external flag */ 
sbit TF2  = 0xCF;       /* Timer 2 overflow flag */ 
 
/*------------------------------------------------ 
T2MOD Bit Values 
------------------------------------------------*/ 
#define DCEN_   0x01    /* 1=Timer 2 can be configured as up/down counter */ 
#define T2OE_   0x02    /* Timer 2 output enable */ 
 
/*------------------------------------------------ 
PSW Bit Registers 
------------------------------------------------*/ 
sbit P    = 0xD0; 
sbit FL   = 0xD1; 
sbit OV   = 0xD2; 
sbit RS0  = 0xD3; 
sbit RS1  = 0xD4; 
sbit F0   = 0xD5; 
sbit AC   = 0xD6; 
sbit CY   = 0xD7; 
 
/*------------------------------------------------ 
Interrupt Vectors: 
Interrupt Address = (Number * 8) + 3 
------------------------------------------------*/ 
#define IE0_VECTOR	0  /* 0x03 External Interrupt 0 */ 
#define TF0_VECTOR	1  /* 0x0B Timer 0 */ 
#define IE1_VECTOR	2  /* 0x13 External Interrupt 1 */ 
#define TF1_VECTOR	3  /* 0x1B Timer 1 */ 
#define SIO_VECTOR	4  /* 0x23 Serial port */ 
 
#define TF2_VECTOR	5  /* 0x2B Timer 2 */ 
#define EX2_VECTOR	5  /* 0x2B External Interrupt 2 */ 
 
/*------------------------------------------------ 
------------------------------------------------*/ 
#endif 
 
 
 

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