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1、精选优质文档-倾情为你奉上MCS-51指令(1)数据传送类指令(7种助记符)助记符 英文注释 功能MOV Move 对内部数据寄存器RAM和特殊功能寄存器SFR的数据进行传送MOVC Move Code 读取程序存储器数据表格的数据传送MOVX Move External RAM 对外部RAM的数据传送XCH Exchange 字节交换XCHD Exchange low-order Digit 低半字节交换PUSH Push onto Stack) 入栈POP Pop from Stack) 出栈(2)算术运算类指令(8种助记符)ADD Addition 加法ADDC Add with Car
2、ry 带进位加法SUBB Subtract with Borrow 带借位减法DA Decimal Adjust 十进制调整INC Increment 加1DEC Decrement 减1MUL Multiplication、Multiply 乘法DIV Division、Divide 除法(3)逻辑运算类指令(10种助记符)ANL And Logic 逻辑与ORL OR Logic 逻辑或XRL Exclusive-OR Logic 逻辑异或CLR Clear 清零CPL Complement 取反RL Rotate left 循环左移RLC Rotate Left throught the
3、 Carry flag 带进位循环左移RR Rotate Right 循环右移RRC Rotate Right throught the Carry flag 带进位循环右移SWAP Swap 低4位与高4位交换(4)控制转移类指令(17种助记符)ACALL Absolute subroutine Call 子程序绝对调用LCALL Long subroutine Call 子程序长调用RET Return from subroutine 子程序返回RETI Return from Interruption 中断返回JMP Jump Indirect SJMP Short Jump 短转移AJ
4、MP Absolute Jump 绝对转移LJMP Long Jump 长转移CJNE Compare and Jump if Not Equal 比较不相等则转移DJNZ Decrement and Jump if Not Zero 减后不为则转移JZ Jump if Zero 结果为则转移JNZ Jump if Not Zero 结果不为则转移JC Jump if the Carry flag is set 有进位则转移JNC Jump if Not Carry 无进位则转移JB Jump if the Bit is set) B位为则转移JNB Jump if the Bit is No
5、t set B位为则转移JBC Jump if the Bit is set and Clear the bit 位为则转移,并清除该位NOP No Operation 空操作(5)位操作指令(1种助记符)SETB Set Bit 置位伪指令助记符 英文注释 功能ORG Origin DB Define Byte DW Define Word EQU Equal DATA Data XDATA External Data BIT Bit END End 51外部引脚缩写 英文解释 中文解释RST (9) Reset 复位信号引脚RxD (10-P3.0) Receive Data 串口接收端T
6、xD (11-P3.1) Transmit Data 串口发送端INT0() (12-P3.2)Interrupt0 外部中断0信号输入引脚INT1() (13-P3.3)Interrupt1 外部中断1信号输入引脚T0 (14-P3.4) Timer0 定时/计数器0输入信号引脚T1 (15-P3.5) Timer1 定时/计数器1输入信号引脚WR() (16-P3.6)write 写信号引脚RD() (17-P3.7)read 读信号引脚PSEN() (29)progammer saving enable 外部程序存储器读选通信号ALE (30) Address Latch Enable
7、地址锁存允许信号EA() (31)enable 外部ROM选择信号51内部寄存器SFR special funtion register 特殊功能寄存器ACC accumulate 累加器APSW progammer status word 程序状态字CY (PSW.7) carry 进位标志位AC (PSW.6) assistant carry 辅助进位标志位OV (PSW.2) overflow 溢出标志位PC progammer counter 程序计数器DPTR data point register 数据指针寄存器SP stack point 堆栈指针TCON timer contr
8、ol 定时器控制寄存器TF1 (TCON.7) Timer1 flag T1中断标志位TR1 (TCON.6) Timer1 Run T1运行控制位TF0 (TCON.5) Timer0 flag T0中断标志位TR0 (TCON.4) Timer0 Run T0运行控制位IE1 (TCON.3) Interrupt1 exterior 外部中断1中断标志位IT1 (TCON.2) Interrupt1 touch 外部中断1 触发方式选择位IE0 (TCON.1) Interrupt0 exterior 外部中断0中断标志位IT0 (TCON.0) Interrupt0 touch 0-电平
9、触发 1-下降沿触发IE (A8H) interrupt enable 中断允许寄存器EA (IE.7) enable all interrupt 中断总允许位ES (IE.4) enable serial 串行口中断允许位ET1 (IE.3) enable timer 1 T1中断允许位EX1 (IE.2) enable exterior 1 外部中断1中断允许位ET0 (IE.1) enable timer 0 T0中断允许位EX0 (IE.0) enable exterior 0 外部中断0中断允许位IP (B8H) interrupt priority 中断优先级寄存器PS (IP.4
10、) priority serial 串口优先级标志位PT1 (IP.3) priority timer 1 定时器1优先级标志位PX1 (IP.2) priority exterior 1 外部中断1优先级标志位PT0 (IP.1) priority timer 0 定时器0优先级标志位PX0 (IP.0) priority exterior 0 外部中断0优先级标志位PCON (87H) power control 电源控制和波特率选择TMOD (89H) timer mode 定时器方式控制寄存器MSB = most significant bit/最高有效位 LSB = last sig
11、nificant bit/最低有效位 OE = output enable /输出使能MCS-51指令(1)数据传送类指令(7种助记符)助记符 英文注释 功能MOV Move 对内部数据寄存器RAM和特殊功能寄存器SFR的数据进行传送MOVC Move Code 读取程序存储器数据表格的数据传送MOVX Move External RAM 对外部RAM的数据传送XCH Exchange 字节交换XCHD Exchange low-order Digit 低半字节交换PUSH Push onto Stack) 入栈POP Pop from Stack) 出栈(2)算术运算类指令(8种助记符)AD
12、D Addition 加法ADDC Add with Carry 带进位加法SUBB Subtract with Borrow 带借位减法DA Decimal Adjust 十进制调整INC Increment 加1DEC Decrement 减1MUL Multiplication、Multiply 乘法DIV Division、Divide 除法(3)逻辑运算类指令(10种助记符)ANL And Logic 逻辑与ORL OR Logic 逻辑或XRL Exclusive-OR Logic 逻辑异或CLR Clear 清零CPL Complement 取反RL Rotate left 循环
13、左移RLC Rotate Left throught the Carry flag 带进位循环左移RR Rotate Right 循环右移RRC Rotate Right throught the Carry flag 带进位循环右移SWAP Swap 低4位与高4位交换(4)控制转移类指令(17种助记符)ACALL Absolute subroutine Call 子程序绝对调用LCALL Long subroutine Call 子程序长调用RET Return from subroutine 子程序返回RETI Return from Interruption 中断返回JMP Jump
14、Indirect SJMP Short Jump 短转移AJMP Absolute Jump 绝对转移LJMP Long Jump 长转移CJNE Compare and Jump if Not Equal 比较不相等则转移DJNZ Decrement and Jump if Not Zero 减后不为则转移JZ Jump if Zero 结果为则转移JNZ Jump if Not Zero 结果不为则转移JC Jump if the Carry flag is set 有进位则转移JNC Jump if Not Carry 无进位则转移JB Jump if the Bit is set) B
15、位为则转移JNB Jump if the Bit is Not set B位为则转移JBC Jump if the Bit is set and Clear the bit 位为则转移,并清除该位NOP No Operation 空操作(5)位操作指令(1种助记符)SETB Set Bit 置位伪指令助记符 英文注释 功能ORG Origin DB Define Byte DW Define Word EQU Equal DATA Data XDATA External Data BIT Bit END End 51外部引脚缩写 英文解释 中文解释RST (9) Reset 复位信号引脚RxD
16、 (10-P3.0) Receive Data 串口接收端TxD (11-P3.1) Transmit Data 串口发送端INT0() (12-P3.2)Interrupt0 外部中断0信号输入引脚INT1() (13-P3.3)Interrupt1 外部中断1信号输入引脚T0 (14-P3.4) Timer0 定时/计数器0输入信号引脚T1 (15-P3.5) Timer1 定时/计数器1输入信号引脚WR() (16-P3.6) write 写信号引脚RD() (17-P3.7) read 读信号引脚PSEN() (29)progammer saving enable 外部程序存储器读选通
17、信号ALE (30) Address Latch Enable 地址锁存允许信号EA() (31) enable 外部ROM选择信号51内部寄存器SFR special funtion register 特殊功能寄存器ACC accumulate 累加器APSW progammer status word 程序状态字CY (PSW.7) carry 进位标志位AC (PSW.6) assistant carry 辅助进位标志位OV (PSW.2) overflow 溢出标志位PC progammer counter 程序计数器DPTR data point register 数据指针寄存器SP
18、 stack point 堆栈指针TCON timer control 定时器控制寄存器TF1 (TCON.7) Timer1 flag T1中断标志位TR1 (TCON.6) Timer1 Run T1运行控制位TF0 (TCON.5) Timer0 flag T0中断标志位TR0 (TCON.4) Timer0 Run T0运行控制位IE1 (TCON.3) Interrupt1 exterior 外部中断1中断标志位IT1 (TCON.2) Interrupt1 touch 外部中断1 触发方式选择位IE0 (TCON.1) Interrupt0 exterior 外部中断0中断标志位I
19、T0 (TCON.0) Interrupt0 touch 0-电平触发 1-下降沿触发IE (A8H) interrupt enable 中断允许寄存器EA (IE.7) enable all interrupt 中断总允许位ES (IE.4) enable serial 串行口中断允许位ET1 (IE.3) enable timer 1 T1中断允许位EX1 (IE.2) enable exterior 1 外部中断1中断允许位ET0 (IE.1) enable timer 0 T0中断允许位EX0 (IE.0) enable exterior 0 外部中断0中断允许位IP (B8H) in
20、terrupt priority 中断优先级寄存器PS (IP.4) priority serial 串口优先级标志位PT1 (IP.3) priority timer 1 定时器1优先级标志位PX1 (IP.2) priority exterior 1 外部中断1优先级标志位PT0 (IP.1) priority timer 0 定时器0优先级标志位PX0 (IP.0) priority exterior 0 外部中断0优先级标志位PCON (87H) power control 电源控制和波特率选择TMOD (89H) timer mode 定时器方式控制寄存器MSB = most sig
21、nificant bit/最高有效位 LSB = last significant bit/最低有效位 OE = output enable /输出使能AC(alternating current) 交流(电) tnHh F ( qAD(analog to digital) 模拟数字转换 6o T BADC(analog to digital convertor) 模拟数字转换器GCu- Z8NDNADM(adaptive delta modulation) 自适应增量调制lO- 6 kCADPCM(adaptive differential pulse code modulation) 自适
22、应差分脉冲编码调制( 4 U EALU(arithmetic logic unit) 算术逻辑单元ydgjd,ikASCII(American standard code for information )F y *&-interchange) 美国信息交换标准码 jk8y :J M(AV(audio visual) 声视,视听c-, ( ,$t kBCD(binary coded decimal) 二进制编码的十进制数$ 5 %zPBCR(bi-directional controlled rectifier)双向晶闸管ZPoLm_BBCR(buffer courtier reset) 缓冲
23、计数器l! ,!DC(direct current) 直流;vDDVM(digital voltmeter) 数字电压表tB j5L hmECG(electrocardiograph) 心电图y9y EjG F!ECL(emitter coupled logic) 射极耦合逻辑&6 / uChD lEDI(electronic data interchange) 电子数据交换! ?hC&f1EIA(Electronic Industries Association) 电子工业联合会iSo 6 ,dEOC(end of conversion) 转换结束B #& Y ; EPROM(erasabl
24、e programmable read only memory) 可擦可编程只读存储器bqd =-EEPROM(electrically EPROM) 电可擦可编程只读存储器 -X #5OESD(electro-static discharge) 静电放电RWfIv,/ -FET(field-effect transistor) 场效应晶体管P$ P0D cFS(full scale) 满量程NF. PV-3*e6FV(frequency to voltage convertor) 频率电压转换FM(frequency modulation) 调频 CBRbc5+TrFSK(frequency
25、 shift keying) 频移键控FSM(field strength meter) 场强计sZw* WS &QFST(fast switching shyster) 快速晶闸管7 %wlXS eFT(fixed time) 固定时间ey -xkR FU(fuse unit) 保险丝装置b$Oo 1 zFWD(forward) 正向的GAL(generic array logic) 通用阵列逻辑k : KRYGND(ground) 接地,地线o) I %h %GTO(Sate turn off thruster) 门极可关断晶体管sR:-Yi*jWHART(highway addressa
26、ble remote transducer) 可寻址远程传感器数据公路* GJ=m3 SHCMOS(high density COMS) 高密度互补金属氧化物半导体(器件) Xd iF3I !HF(high frequency) 高频bh -MHaakHTL(high threshold logic) 高阈值逻辑电路 y =JHTS(heat temperature sensor) 热温度传感器PNi E0;IC(integrated circuit) 集成电路x h .ID(international data) 国际数据IGBT(insulated gate bipolar transis
27、tor) 绝缘栅双极型晶体管LM VH%MIGFET(insulated gate field effect transistor) 绝缘栅场效应晶体管m7 0O.lIO(inputoutput) 输入输出 ei -uWIV(current to voltage convertor) 电流-电压变换器z fGT. jIPM(incidental phase modulation) 附带的相位调制 L uEFIPM(intelligent power module) 智能功率模块%LCD(liquid crystal display) 液晶显示器Mh=3V A1LDR(light depende
28、nt resistor) 光敏电阻 (t %.(VLED(light emitting diode) 发光二极管 fwcN(negative) 负m-e $4 kNMOS(N-channel metal oxide semiconductor FET) N 沟道MOSFET oVPVN-BNTC(negative temperature coefficient) 负温度系数X C/W/9OC(over current) 过电流OCB(overload circuit breaker) 过载断路器OCS(optical communication system) 光通讯系统 VR oN M:S
29、)/ 2PIO(parallel input output) 并行输入输出5 s3JI PLL(phase-locked loop) 锁相环路A+dFwF iYnPMOS(P-channel metal oxide semiconductor FET) P 沟道MOSFET $zp f /P-P(peak-to-peak) 峰-峰+:$ z ,dPPM(pulse phase modulation) 脉冲相位洲制 dw F$YPRD(piezoelectric radiation detector) 热电辐射控测器BaEX !wPROM(programmable read only memor
30、y) 可编只读程存储器PRT(platinum resistance thermometer) 铂电阻温度计PRT(pulse recurrent time) 脉冲周期时间- nn MYPUT(programmable unijunction transistor) 可编程单结晶体管EbiCt ? PWM(pulse width modulation) 脉宽调制/Q lZ %|XR(resistance,resistor) 电阻,电阻器JN/ CvmWRRAM(random access memory) 随机存储器/Ml( P4i NRCT(reverse conducting thyrist
31、or) 逆导晶闸管hO xoraREF(reference) 参考,基准J / LIG ZFoREV(reverse) 反转? 2?305R/F(radio frequency) 射频jnl (X 9-rhRGB(redgreenblue) 红绿蓝kwaGP _wROM(read only memory) 只读存储器f z - Eh( NRP(resistance potentiometer) 电位器gyKs /_ 3RST(reset) 复位信号b5b *CeqJRT(resistor with inherent variability dependent) 热敏电阻1 62 RWRTD(r
32、esistance temperature detector) 电阻温度传感器 6r, 57RTL(resistor transistor logic) 电阻晶体管逻辑(电路) 6TW 2 s$0+RV(resistor with inherent variability dependent on the a 8?#voltage) 压敏电阻器, x pSITH(static induction thyristor) 静电感应晶闸管s J B .SP(shift pulse) 移位脉冲kw S nT #ASPI(serial peripheral interface) 串行外围接口 B o&+
33、 SR(sample realy,saturable reactor) 取样继电器,饱和电抗器 p -V7 )nSR(silicon rectifier) 硅整流器y E 6KSRAM(static random access memory) 静态随机存储器TADw cXSSR(solid-state relay) 固体继电器 IAIk t!SSR(switching select repeater) 中断器开关选择器X?,MWn /SSS(silicon symmetrical switch) 硅对称开关,双向可控硅- ?1 bPnruSSW(synchro-switch) 同步开关=cMw
34、 MZzST(start) 启动&Sril Gu&kST(starter) 启动器L ? JSTB(strobe) 闸门,选通脉冲lLU #7 -zT(transistor) 晶体管,晶闸管qU-2;%Q TACH(tachometer) 转速计, 转速表TP(temperature probe) 温度传感器ne 2 qEVTRIAC(triodes AC switch) 三极管交流开关TTL(transistor-transistor logic) 晶体管一晶体管逻辑E=|Csm2*qTV(television) 电视 3K6c p EUART(universal asynchronous receiver transmitter) 通用异步收发器e m 4 m VCO(voltage controlled oscillator) 压控振荡器 pe f m+R65VD(video decoders) 视频译码器9QH =-(D lrVDR(voltage dependent resistor) 压敏电阻h U 97dFv FVF(video frequency) 视频0Sgn ? 8*VF(voltage-to-frequency) 电压频率转换t N cRVI(voltage to current c