/* PSW */ 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; //8052 only 英文缩写是什么
时间: 2024-04-26 10:20:43 浏览: 6
在这段代码中,各个缩写的英文全称如下:
- CY:Carry Flag,表示进位标志
- AC:Auxiliary Carry Flag,表示半进位标志
- F0:User Flag 0,用户标志0
- RS1:Register Bank Select 1,寄存器组选择1
- RS0:Register Bank Select 0,寄存器组选择0
- OV:Overflow Flag,表示溢出标志
- P:Parity Flag,表示奇偶标志,只在8052中有效
这些缩写表示了PSW寄存器中的各个标志位所代表的含义和作用。在单片机编程中,这些标志位的状态会随着程序的执行而变化,程序可以根据它们的状态来判断并进行相应的控制和处理,比如进行进位、溢出、奇偶校验等操作。
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解释这段代码/* 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;
这段代码定义了一些位寄存器(BIT)的地址,这些寄存器是 8051 单片机中用于控制单个位的状态的寄存器。sbit 关键字表示这些寄存器是位寄存器,而 CY、AC、F0、RS1、RS0、OV、P、TF1、TR1、TF0、TR0、IE1、IT1、IE0、IT0、EA、ES、ET1、EX1、ET0、EX0、PS、PT1、PX1、PT0、PX0、RD、WR、T1、T0、INT1、INT0、TXD、RXD、SM0、SM1、SM2、REN、TB8、RB8、TI、RI 分别是对应的位的地址。通过定义这些地址,可以方便地访问这些位寄存器,从而控制单个位的状态,比如设置中断、串口通信、定时器计数等。
/*--------------------------------------------------------------------------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__ /* BYTE Registers */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; /* 8052 Extensions */sfr T2CON = 0xC8;sfr RCAP2L = 0xCA;sfr RCAP2H = 0xCB;sfr TL2 = 0xCC;sfr TH2 = 0xCD; /* BIT Registers *//* PSW */ 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; //8052 only /* TCON */ 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; 英文缩写原文是什么
这段代码是关于reg52单片机的头文件reg52.h,其中定义了各个寄存器的地址以及位域的访问方式。以下是每个缩写的原文:
sfr: Special Function Register
sbit: Special Bit Register
P0: Port 0
P1: Port 1
P2: Port 2
P3: Port 3
PSW: Program Status Word
ACC: Accumulator
B: B register
SP: Stack Pointer
DPL: Data Pointer Low
DPH: Data Pointer High
PCON: Power Control
TCON: Timer Control
TMOD: Timer Mode
TL0: Timer 0 Low Byte
TL1: Timer 1 Low Byte
TH0: Timer 0 High Byte
TH1: Timer 1 High Byte
IE: Interrupt Enable
IP: Interrupt Priority
SCON: Serial Control
SBUF: Serial Buffer
T2CON: Timer 2 Control
RCAP2L: Timer 2 Reload Low Byte
RCAP2H: Timer 2 Reload High Byte
TL2: Timer 2 Low Byte
TH2: Timer 2 High Byte
CY: Carry Flag
AC: Auxiliary Carry Flag
F0: User-defined Flag 0
RS1: Register Bank Select 1
RS0: Register Bank Select 0
OV: Overflow Flag
P: Parity Flag (only for 8052)
TF1: Timer 1 Overflow Flag
TR1: Timer 1 Run Control
TF0: Timer 0 Overflow Flag
TR0: Timer 0 Run Control
IE1: External Interrupt 1 Enable
IT1: External Interrupt 1 Type
IE0: External Interrupt 0 Enable
IT0: External Interrupt 0 Type