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对于reg51.h、reg52.h、regx52.h、stc15f2k60s2.h的思考

满言
2023-12-01

早在学习51单片机时就在想这几个头文件到底有什么区别,在不同的地方有不同的用法。现在再回过头来看心中不禁了然。
reg52.h和stc15f2k60s2.h对于使用蓝桥杯的板子,都可以正常使用,但是又有一些区别,简单来说,我们单片机比赛中用的芯片的寄存器在stc15f2k60s2.h中的定义更完善。我们可以直接书写文档,而不用自己再去定义某些reg52.h没有定义的寄存器。另外,比赛的板子如果要用硬件仿真功能,也需要STC12F2K60S2工程。总的说来这几个头文件最大的区别就是完善程度了,有些管脚定义了,有些则没有,在使用的时候注意区分便是,下面贴出他们头文件的具体内容:

REG52.H

/*--------------------------------------------------------------------------
REG52.H

Header file for generic 80C52 and 80C32 microcontroller.
Copyright (c) 1988-2002 Keil Elektronik GmbH and Keil Software, Inc.
All rights reserved.
--------------------------------------------------------------------------*/


#ifndef __REG52_H__
#define __REG52_H__


/*  特殊字节(8位)寄存器 */
sfr	P0	=	0x80;				// P0口特殊寄存器寻址位
sfr	P1	=	0x90;				// P1口特殊寄存器寻址位
sfr	P2	=	0xA0;				// P2口特殊寄存器寻址位
sfr	P3	=	0xB0;				// P3口特殊寄存器寻址位
sfr	PSW	=	0xD0;				//程序状态字寄存器
sfr	ACC	=	0xE0;				//累加器
sfr	B	=	0xF0;				//B 特殊寄存器
sfr	SP	=	0x81;				//堆栈指针寄存器
sfr	DPL	=	0x82;				//数字指针(低位)
sfr	DPH	=	0x83;				//数字指针(高位)
sfr	PCON	=	0x87;			//电源控制寄存器
sfr	TCON	=	0x88;			//定时器/计数器 0 和 1 控制
sfr	TMOD	=	0x89;			//定时器/计数器 0 和 1 模式
sfr	TL0	=	0x8A;				//定时器/计数器 0 低8位寄存器 
sfr	TL1	=	0x8B;				//定时器/计数器 1低8位寄存器  
sfr	TH0	=	0x8C;				//定时器/计数器 0高8位寄存器  
sfr	TH1	=	0x8D;				//定时器/计数器 1高8位寄存器
sfr	IE	=	0xA8;				//中断允许寄存器
sfr	IP	=	0xB8;				//中断优先寄存器(低)
sfr	SCON	=	0x98;			//串口控制寄存器
sfr	SBUF	=	0x99;			//串口数据缓冲器

/*  8052扩展寄存器 */
sfr	T2CON	=	0xC8;			//定时器/计数器2 控制
sfr	RCAP2L	=	0xCA;			//定时器/计数器2 重载/捕捉低位
sfr	RCAP2H	=	0xCB;			//定时器/计数器2 重载/捕捉高位
sfr	TL2	=	0xCC;				//定时器/计数器2 低位
sfr	TH2	=	0xCD;				//定时器/计数器2 高位



/*  位寄存器  */


/*  PSW (程序状态字寄存器) */
sbit	CY	=	PSW^7;			//进位、借位标志。进位、借位CY=1;否则CY=0
sbit	AC	=	PSW^6;			//辅助进位、借位标志。当D3向D4有借位或进位时,AC=1;否则AC=0
sbit	F0	=	PSW^5;			//用户标志位
sbit	RS1	=	PSW^4;			//寄存器组选择控制位1
sbit	RS0	=	PSW^3;			//寄存器组选择控制位0
sbit	OV	=	PSW^2;			//溢出标志。有溢出OV=1,否则OV=0
sbit	F1	=	PSW^1;			//保留位,无定义
sbit	P	=	PSW^0;			//8052 only 奇偶校验标志位,由硬件置位或清0;
								//存在ACC中的运算结果有奇数个1时P=1,否则P=0


/*  TCON (定时器/计数器 0 和 1 控制) */
sbit	TF1	=	TCON^7;			//定时器1溢出标志位。当字时器1计满溢出时, 
								//由硬件使TF1置“1”,并且申请中断。
								//进入中断服务程序后,由硬件自动清“0”,在查询方式下用软件清 “0”
sbit	TR1	=	TCON^6;			//定时器1运行控制位。由软件清“0”关闭定时器1。
								//当GATE=1,且INT1为高电平时,TR1置“1”启动定时器1;
								//当GATE=0,TR1置“1” 启动定时器1
sbit	TF0	=	TCON^5;			//定时器0溢出标志。其功能及操作情况同TF1。
sbit	TR0	=	TCON^4;			//定时器0运行控制位。其功能及操作情况同TR1。
sbit	IE1	=	TCON^3;			//外部中断1请求标志。
sbit	IT1	=	TCON^2;			//外部中断1触发方式选择位。
sbit	IE0	=	TCON^1;			//外部中断0请求标志。
sbit	IT0	=	TCON^0;			//外部中断0触发方式选择位。


/* IE (中断允许寄存器) */
sbit	EA	=	IE^7;			//允许/禁止总中断
sbit	ET2	=	IE^5;			//8052 only 允许/禁止定时器2(T2)中断
sbit	ES	=	IE^4;			//允许/禁止串口中断
sbit	ET1	=	IE^3;			//允许/禁止T1溢出中断
sbit	EX1	=	IE^2;			//允许/禁止外部中断1(INT1)
sbit	ET0	=	IE^1;			//允许/禁止T0溢出中断
sbit	EX0	=	IE^0;			//允许/禁止外部中断0(INT0)


/* IP (中断优先寄存器低) */
sbit	PT2	=	IP^5;			//定时/计数器T2优先级设定位。
sbit	PS	=	IP^4;			//串行口优先级设定位;
sbit	PT1	=	IP^3;			//定时/计数器T1优先级设定位;
sbit	PX1	=	IP^2;			//外部中断0优先级设定位;
sbit	PT0	=	IP^1;			//定时/计数器T0优先级设定位;
sbit	PX0	=	IP^0;			//外部中断0优先级设定位;

/* P3 (第二功能) */
sbit	RD	=	P3^7;			//外部数据存储器读脉冲
sbit	WR	=	P3^6;			//外部数据存储器写脉冲
sbit	T1	=	P3^5;			//定时器/计数器1外部输入
sbit	T0	=	P3^4;			//定时器/计数器0外部输入
sbit	INT1	=	P3^3;		//外部中断0。
sbit	INT0	=	P3^2;		//外部中断1。
sbit	TXD	=	P3^1;			//串行数据输出口
sbit	RXD	=	P3^0;			//串行数据输入口


/* SCON(控制寄存器,它是一个可寻址的专用寄存器,用于串行数据的通信控制) */	
sbit	SM0	=	SCON^7;			//串行口工作方式控制位0。
sbit	SM1	=	SCON^6;			//串行口工作方式控制位1。
sbit	SM2	=	SCON^5;			//多机通信控制位。 
sbit	REN	=	SCON^4;			//允许接收位。用于控制数据接收的允许和禁止,
				// ren=1时,允许接收,ren=0时,禁止接收。
sbit	TB8	=	SCON^3;			//发送接收数据位8。
sbit	RB8	=	SCON^2;			//接收数据位8。
sbit	TI	=	SCON^1;			//发送中断标志位。
sbit	RI	=	SCON^0;			//接收中断标志位。 


/*  P1(第二功能) */
sbit	T2EX	=	P1^1;		// 8052 only	定时/计数器2捕捉/重装入触发
sbit	T2	=	P1^0;			// 8052 only	定时/计数器2外部输入


/*  T2CON  (定时器/计数器2 控制) */
sbit	TF2	=	T2CON^7;		//定时器2 溢出标记
sbit	EXF2	=	T2CON^6;	//定时器2 外部标记
sbit	RCLK	=	T2CON^5;	//0=串口时钟应用定时器1 溢出,  1=定时器 2
sbit	TCLK	=	T2CON^4;	//0=串口时钟应用定时器1 溢出,  1=定时器 2
sbit	EXEN2	=	T2CON^3;	//定时器 2 外部允许
sbit	TR2	=	T2CON^2;		//0=停止定时器, 1=开始定时器
sbit	C_T2	=	T2CON^1;	//0=定时器, 1=计数器
sbit	CP_RL2	=	T2CON^0;	//0=重载, 1=捕捉选择。

#endif

REG51.H

/*--------------------------------------------------------------------------
REG51.H

Header file for generic 80C51 and 80C31 microcontroller.
Copyright (c) 1988-2002 Keil Elektronik GmbH and Keil Software, Inc.
All rights reserved.
--------------------------------------------------------------------------*/

#ifndef __REG51_H__
#define __REG51_H__

/*  BYTE Register  */
sfr P0   = 0x80;
sfr P1   = 0x90;
sfr P2   = 0xA0;
sfr P3   = 0xB0;
sfr PSW  = 0xD0;
sfr ACC  = 0xE0;
sfr B    = 0xF0;
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 IE   = 0xA8;
sfr IP   = 0xB8;
sfr SCON = 0x98;
sfr SBUF = 0x99;


/*  BIT Register  */
/*  PSW   */
sbit CY   = 0xD7;
sbit AC   = 0xD6;
sbit F0   = 0xD5;
sbit RS1  = 0xD4;
sbit RS0  = 0xD3;
sbit OV   = 0xD2;
sbit P    = 0xD0;

/*  TCON  */
sbit TF1  = 0x8F;
sbit TR1  = 0x8E;
sbit TF0  = 0x8D;
sbit TR0  = 0x8C;
sbit IE1  = 0x8B;
sbit IT1  = 0x8A;
sbit IE0  = 0x89;
sbit IT0  = 0x88;

/*  IE   */
sbit EA   = 0xAF;
sbit ES   = 0xAC;
sbit ET1  = 0xAB;
sbit EX1  = 0xAA;
sbit ET0  = 0xA9;
sbit EX0  = 0xA8;

/*  IP   */ 
sbit PS   = 0xBC;
sbit PT1  = 0xBB;
sbit PX1  = 0xBA;
sbit PT0  = 0xB9;
sbit PX0  = 0xB8;

/*  P3  */
sbit RD   = 0xB7;
sbit WR   = 0xB6;
sbit T1   = 0xB5;
sbit T0   = 0xB4;
sbit INT1 = 0xB3;
sbit INT0 = 0xB2;
sbit TXD  = 0xB1;
sbit RXD  = 0xB0;

/*  SCON  */
sbit SM0  = 0x9F;
sbit SM1  = 0x9E;
sbit SM2  = 0x9D;
sbit REN  = 0x9C;
sbit TB8  = 0x9B;
sbit RB8  = 0x9A;
sbit TI   = 0x99;
sbit RI   = 0x98;

#endif

REGX52.h

/*--------------------------------------------------------------------------
AT89X52.H

Header file for the low voltage Flash Atmel AT89C52 and AT89LV52.
Copyright (c) 1988-2002 Keil Elektronik GmbH and Keil Software, Inc.
All rights reserved.
--------------------------------------------------------------------------*/

#ifndef __AT89X52_H__
#define __AT89X52_H__
/*------------------------------------------------
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 F1   = 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

STC15F2K60S2.H

#ifndef __STC15F2K60S2_H_
#define __STC15F2K60S2_H_

/
//注意: STC15W4K32S4系列的芯片,上电后所有与PWM相关的IO口均为
//      高阻态,需将这些口设置为准双向口或强推挽模式方可正常使用
//相关IO: P0.6/P0.7/P1.6/P1.7/P2.1/P2.2
//        P2.3/P2.7/P3.7/P4.2/P4.4/P4.5
/

/
//包含本头文件后,不用另外再包含"REG51.H"
//内核特殊功能寄存器        // 复位值   描述
sfr ACC         =   0xE0;   //0000,0000 累加器Accumulator
sfr B           =   0xF0;   //0000,0000 B寄存器
sfr PSW         =   0xD0;   //0000,0000 程序状态字
sbit CY         =   PSW^7;
sbit AC         =   PSW^6;
sbit F0         =   PSW^5;
sbit RS1        =   PSW^4;
sbit RS0        =   PSW^3;
sbit OV         =   PSW^2;
sbit P          =   PSW^0;
sfr SP          =   0x81;   //0000,0111 堆栈指针
sfr DPL         =   0x82;   //0000,0000 数据指针低字节
sfr DPH         =   0x83;   //0000,0000 数据指针高字节

//I/O 口特殊功能寄存器
sfr P0          =   0x80;   //1111,1111 端口0
sbit P00        =   P0^0;
sbit P01        =   P0^1;
sbit P02        =   P0^2;
sbit P03        =   P0^3;
sbit P04        =   P0^4;
sbit P05        =   P0^5;
sbit P06        =   P0^6;
sbit P07        =   P0^7;
sfr P1          =   0x90;   //1111,1111 端口1
sbit P10        =   P1^0;
sbit P11        =   P1^1;
sbit P12        =   P1^2;
sbit P13        =   P1^3;
sbit P14        =   P1^4;
sbit P15        =   P1^5;
sbit P16        =   P1^6;
sbit P17        =   P1^7;
sfr P2          =   0xA0;   //1111,1111 端口2
sbit P20        =   P2^0;
sbit P21        =   P2^1;
sbit P22        =   P2^2;
sbit P23        =   P2^3;
sbit P24        =   P2^4;
sbit P25        =   P2^5;
sbit P26        =   P2^6;
sbit P27        =   P2^7;
sfr P3          =   0xB0;   //1111,1111 端口3
sbit P30        =   P3^0;
sbit P31        =   P3^1;
sbit P32        =   P3^2;
sbit P33        =   P3^3;
sbit P34        =   P3^4;
sbit P35        =   P3^5;
sbit P36        =   P3^6;
sbit P37        =   P3^7;
sfr P4          =   0xC0;   //1111,1111 端口4
sbit P40        =   P4^0;
sbit P41        =   P4^1;
sbit P42        =   P4^2;
sbit P43        =   P4^3;
sbit P44        =   P4^4;
sbit P45        =   P4^5;
sbit P46        =   P4^6;
sbit P47        =   P4^7;
sfr P5          =   0xC8;   //xxxx,1111 端口5
sbit P50        =   P5^0;
sbit P51        =   P5^1;
sbit P52        =   P5^2;
sbit P53        =   P5^3;
sbit P54        =   P5^4;
sbit P55        =   P5^5;
sbit P56        =   P5^6;
sbit P57        =   P5^7;
sfr P6          =   0xE8;   //0000,0000 端口6
sbit P60        =   P6^0;
sbit P61        =   P6^1;
sbit P62        =   P6^2;
sbit P63        =   P6^3;
sbit P64        =   P6^4;
sbit P65        =   P6^5;
sbit P66        =   P6^6;
sbit P67        =   P6^7;
sfr P7          =   0xF8;   //0000,0000 端口7
sbit P70        =   P7^0;
sbit P71        =   P7^1;
sbit P72        =   P7^2;
sbit P73        =   P7^3;
sbit P74        =   P7^4;
sbit P75        =   P7^5;
sbit P76        =   P7^6;
sbit P77        =   P7^7;
sfr P0M0        =   0x94;   //0000,0000 端口0模式寄存器0
sfr P0M1        =   0x93;   //0000,0000 端口0模式寄存器1
sfr P1M0        =   0x92;   //0000,0000 端口1模式寄存器0
sfr P1M1        =   0x91;   //0000,0000 端口1模式寄存器1
sfr P2M0        =   0x96;   //0000,0000 端口2模式寄存器0
sfr P2M1        =   0x95;   //0000,0000 端口2模式寄存器1
sfr P3M0        =   0xB2;   //0000,0000 端口3模式寄存器0
sfr P3M1        =   0xB1;   //0000,0000 端口3模式寄存器1
sfr P4M0        =   0xB4;   //0000,0000 端口4模式寄存器0
sfr P4M1        =   0xB3;   //0000,0000 端口4模式寄存器1
sfr P5M0        =   0xCA;   //0000,0000 端口5模式寄存器0
sfr P5M1        =   0xC9;   //0000,0000 端口5模式寄存器1
sfr P6M0        =   0xCC;   //0000,0000 端口6模式寄存器0
sfr P6M1        =   0xCB;   //0000,0000 端口6模式寄存器1
sfr P7M0        =   0xE2;   //0000,0000 端口7模式寄存器0
sfr P7M1        =   0xE1;   //0000,0000 端口7模式寄存器1

//系统管理特殊功能寄存器
sfr PCON        =   0x87;   //0001,0000 电源控制寄存器
sfr AUXR        =   0x8E;   //0000,0000 辅助寄存器
sfr AUXR1       =   0xA2;   //0000,0000 辅助寄存器1
sfr P_SW1       =   0xA2;   //0000,0000 外设端口切换寄存器1
sfr CLK_DIV     =   0x97;   //0000,0000 时钟分频控制寄存器
sfr BUS_SPEED   =   0xA1;   //xx10,x011 总线速度控制寄存器
sfr P1ASF       =   0x9D;   //0000,0000 端口1模拟功能配置寄存器
sfr P_SW2       =   0xBA;   //0xxx,x000 外设端口切换寄存器

//中断特殊功能寄存器
sfr IE          =   0xA8;   //0000,0000 中断控制寄存器
sbit EA         =   IE^7;
sbit ELVD       =   IE^6;
sbit EADC       =   IE^5;
sbit ES         =   IE^4;
sbit ET1        =   IE^3;
sbit EX1        =   IE^2;
sbit ET0        =   IE^1;
sbit EX0        =   IE^0;
sfr IP          =   0xB8;   //0000,0000 中断优先级寄存器
sbit PPCA       =   IP^7;
sbit PLVD       =   IP^6;
sbit PADC       =   IP^5;
sbit PS         =   IP^4;
sbit PT1        =   IP^3;
sbit PX1        =   IP^2;
sbit PT0        =   IP^1;
sbit PX0        =   IP^0;
sfr IE2         =   0xAF;   //0000,0000 中断控制寄存器2
sfr IP2         =   0xB5;   //xxxx,xx00 中断优先级寄存器2
sfr INT_CLKO    =   0x8F;   //0000,0000 外部中断与时钟输出控制寄存器

//定时器特殊功能寄存器
sfr TCON        =   0x88;   //0000,0000 T0/T1控制寄存器
sbit TF1        =   TCON^7;
sbit TR1        =   TCON^6;
sbit TF0        =   TCON^5;
sbit TR0        =   TCON^4;
sbit IE1        =   TCON^3;
sbit IT1        =   TCON^2;
sbit IE0        =   TCON^1;
sbit IT0        =   TCON^0;
sfr TMOD        =   0x89;   //0000,0000 T0/T1模式寄存器
sfr TL0         =   0x8A;   //0000,0000 T0低字节
sfr TL1         =   0x8B;   //0000,0000 T1低字节
sfr TH0         =   0x8C;   //0000,0000 T0高字节
sfr TH1         =   0x8D;   //0000,0000 T1高字节
sfr T4T3M       =   0xD1;   //0000,0000 T3/T4模式寄存器
sfr T3T4M       =   0xD1;   //0000,0000 T3/T4模式寄存器
sfr T4H         =   0xD2;   //0000,0000 T4高字节
sfr T4L         =   0xD3;   //0000,0000 T4低字节
sfr T3H         =   0xD4;   //0000,0000 T3高字节
sfr T3L         =   0xD5;   //0000,0000 T3低字节
sfr T2H         =   0xD6;   //0000,0000 T2高字节
sfr T2L         =   0xD7;   //0000,0000 T2低字节
sfr WKTCL       =   0xAA;   //0000,0000 掉电唤醒定时器低字节
sfr WKTCH       =   0xAB;   //0000,0000 掉电唤醒定时器高字节
sfr WDT_CONTR   =   0xC1;   //0000,0000 看门狗控制寄存器

//串行口特殊功能寄存器
sfr SCON        =   0x98;   //0000,0000 串口1控制寄存器
sbit SM0        =   SCON^7;
sbit SM1        =   SCON^6;
sbit SM2        =   SCON^5;
sbit REN        =   SCON^4;
sbit TB8        =   SCON^3;
sbit RB8        =   SCON^2;
sbit TI         =   SCON^1;
sbit RI         =   SCON^0;
sfr SBUF        =   0x99;   //xxxx,xxxx 串口1数据寄存器
sfr S2CON       =   0x9A;   //0000,0000 串口2控制寄存器
sfr S2BUF       =   0x9B;   //xxxx,xxxx 串口2数据寄存器
sfr S3CON       =   0xAC;   //0000,0000 串口3控制寄存器
sfr S3BUF       =   0xAD;   //xxxx,xxxx 串口3数据寄存器
sfr S4CON       =   0x84;   //0000,0000 串口4控制寄存器
sfr S4BUF       =   0x85;   //xxxx,xxxx 串口4数据寄存器
sfr SADDR       =   0xA9;   //0000,0000 从机地址寄存器
sfr SADEN       =   0xB9;   //0000,0000 从机地址屏蔽寄存器

//ADC 特殊功能寄存器
sfr ADC_CONTR   =   0xBC;   //0000,0000 A/D转换控制寄存器
sfr ADC_RES     =   0xBD;   //0000,0000 A/D转换结果高8位
sfr ADC_RESL    =   0xBE;   //0000,0000 A/D转换结果低2位

//SPI 特殊功能寄存器
sfr SPSTAT      =   0xCD;   //00xx,xxxx SPI状态寄存器
sfr SPCTL       =   0xCE;   //0000,0100 SPI控制寄存器
sfr SPDAT       =   0xCF;   //0000,0000 SPI数据寄存器

//IAP/ISP 特殊功能寄存器
sfr IAP_DATA    =   0xC2;   //0000,0000 EEPROM数据寄存器
sfr IAP_ADDRH   =   0xC3;   //0000,0000 EEPROM地址高字节
sfr IAP_ADDRL   =   0xC4;   //0000,0000 EEPROM地址第字节
sfr IAP_CMD     =   0xC5;   //xxxx,xx00 EEPROM命令寄存器
sfr IAP_TRIG    =   0xC6;   //0000,0000 EEPRPM命令触发寄存器
sfr IAP_CONTR   =   0xC7;   //0000,x000 EEPROM控制寄存器

//PCA/PWM 特殊功能寄存器
sfr CCON        =   0xD8;   //00xx,xx00 PCA控制寄存器
sbit CF         =   CCON^7;
sbit CR         =   CCON^6;
sbit CCF2       =   CCON^2;
sbit CCF1       =   CCON^1;
sbit CCF0       =   CCON^0;
sfr CMOD        =   0xD9;   //0xxx,x000 PCA 工作模式寄存器
sfr CL          =   0xE9;   //0000,0000 PCA计数器低字节
sfr CH          =   0xF9;   //0000,0000 PCA计数器高字节
sfr CCAPM0      =   0xDA;   //0000,0000 PCA模块0的PWM寄存器
sfr CCAPM1      =   0xDB;   //0000,0000 PCA模块1的PWM寄存器
sfr CCAPM2      =   0xDC;   //0000,0000 PCA模块2的PWM 寄存器
sfr CCAP0L      =   0xEA;   //0000,0000 PCA模块0的捕捉/比较寄存器低字节
sfr CCAP1L      =   0xEB;   //0000,0000 PCA模块1的捕捉/比较寄存器低字节
sfr CCAP2L      =   0xEC;   //0000,0000 PCA模块2的捕捉/比较寄存器低字节
sfr PCA_PWM0    =   0xF2;   //xxxx,xx00 PCA模块0的PWM寄存器
sfr PCA_PWM1    =   0xF3;   //xxxx,xx00 PCA模块1的PWM寄存器
sfr PCA_PWM2    =   0xF4;   //xxxx,xx00 PCA模块1的PWM寄存器
sfr CCAP0H      =   0xFA;   //0000,0000 PCA模块0的捕捉/比较寄存器高字节
sfr CCAP1H      =   0xFB;   //0000,0000 PCA模块1的捕捉/比较寄存器高字节
sfr CCAP2H      =   0xFC;   //0000,0000 PCA模块2的捕捉/比较寄存器高字节

//比较器特殊功能寄存器
sfr CMPCR1      =   0xE6;   //0000,0000 比较器控制寄存器1
sfr CMPCR2      =   0xE7;   //0000,0000 比较器控制寄存器2

//增强型PWM波形发生器特殊功能寄存器
sfr PWMCFG      =   0xf1;   //x000,0000 PWM配置寄存器
sfr PWMCR       =   0xf5;   //0000,0000 PWM控制寄存器
sfr PWMIF       =   0xf6;   //x000,0000 PWM中断标志寄存器
sfr PWMFDCR     =   0xf7;   //xx00,0000 PWM外部异常检测控制寄存器

//如下特殊功能寄存器位于扩展RAM区域
//访问这些寄存器,需先将P_SW2的BIT7设置为1,才可正常读写
#define PWMC        (*(unsigned int  volatile xdata *)0xfff0)
#define PWMCH       (*(unsigned char volatile xdata *)0xfff0)
#define PWMCL       (*(unsigned char volatile xdata *)0xfff1)
#define PWMCKS      (*(unsigned char volatile xdata *)0xfff2)
#define PWM2T1      (*(unsigned int  volatile xdata *)0xff00)
#define PWM2T1H     (*(unsigned char volatile xdata *)0xff00)
#define PWM2T1L     (*(unsigned char volatile xdata *)0xff01)
#define PWM2T2      (*(unsigned int  volatile xdata *)0xff02)
#define PWM2T2H     (*(unsigned char volatile xdata *)0xff02)
#define PWM2T2L     (*(unsigned char volatile xdata *)0xff03)
#define PWM2CR      (*(unsigned char volatile xdata *)0xff04)
#define PWM3T1      (*(unsigned int  volatile xdata *)0xff10)
#define PWM3T1H     (*(unsigned char volatile xdata *)0xff10)
#define PWM3T1L     (*(unsigned char volatile xdata *)0xff11)
#define PWM3T2      (*(unsigned int  volatile xdata *)0xff12)
#define PWM3T2H     (*(unsigned char volatile xdata *)0xff12)
#define PWM3T2L     (*(unsigned char volatile xdata *)0xff13)
#define PWM3CR      (*(unsigned char volatile xdata *)0xff14)
#define PWM4T1      (*(unsigned int  volatile xdata *)0xff20)
#define PWM4T1H     (*(unsigned char volatile xdata *)0xff20)
#define PWM4T1L     (*(unsigned char volatile xdata *)0xff21)
#define PWM4T2      (*(unsigned int  volatile xdata *)0xff22)
#define PWM4T2H     (*(unsigned char volatile xdata *)0xff22)
#define PWM4T2L     (*(unsigned char volatile xdata *)0xff23)
#define PWM4CR      (*(unsigned char volatile xdata *)0xff24)
#define PWM5T1      (*(unsigned int  volatile xdata *)0xff30)
#define PWM5T1H     (*(unsigned char volatile xdata *)0xff30)
#define PWM5T1L     (*(unsigned char volatile xdata *)0xff31)
#define PWM5T2      (*(unsigned int  volatile xdata *)0xff32)
#define PWM5T2H     (*(unsigned char volatile xdata *)0xff32)
#define PWM5T2L     (*(unsigned char volatile xdata *)0xff33)
#define PWM5CR      (*(unsigned char volatile xdata *)0xff34)
#define PWM6T1      (*(unsigned int  volatile xdata *)0xff40)
#define PWM6T1H     (*(unsigned char volatile xdata *)0xff40)
#define PWM6T1L     (*(unsigned char volatile xdata *)0xff41)
#define PWM6T2      (*(unsigned int  volatile xdata *)0xff42)
#define PWM6T2H     (*(unsigned char volatile xdata *)0xff42)
#define PWM6T2L     (*(unsigned char volatile xdata *)0xff43)
#define PWM6CR      (*(unsigned char volatile xdata *)0xff44)
#define PWM7T1      (*(unsigned int  volatile xdata *)0xff50)        
#define PWM7T1H     (*(unsigned char volatile xdata *)0xff50)        
#define PWM7T1L     (*(unsigned char volatile xdata *)0xff51)
#define PWM7T2      (*(unsigned int  volatile xdata *)0xff52)
#define PWM7T2H     (*(unsigned char volatile xdata *)0xff52)
#define PWM7T2L     (*(unsigned char volatile xdata *)0xff53)
#define PWM7CR      (*(unsigned char volatile xdata *)0xff54)
/

#endif
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