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(附录) 51单片机的特殊功能寄存器详细列表

Register             (MSB)(LSB) Byte

Symbol  b7    b6    b5    b4    b3    b2    b1    b0                                                   Address

P0      P0.7  P0.6  P0.5  P0.4  P0.3  P0.2  P0.1  P0.0                                            80H(128)

SP                                                                                                  81H(129)

DPL                                                                                               82H(130)

DPH                                                                                              83H(131)

PCON   SMOD   -    -    -   GF1   GF0    PD   IDL                                            87H(135)

*PCON  SMOD   -    -   WLE   GF1   GF0    PD   IDL                                                87H(135)

TCON   TF1   TR1   TF0   TR0   IE1   IT1   IE0   IT0                                              88H(136)

TMOD   GATE  C/T    M1    M0   GATE  C/T    M1    M0                                           89H(137)

TL0                                                                                                 8AH(138)

TL1                                                                                                  8BH(139)

TH0                                                                                                8CH(140)

TH1                                                                                                8DH(141)

P1    P1.7  P1.6  P1.5  P1.4  P1.3  P1.2  T2EX   T2                                             90H(144)

*P1   SDA   SCL   RT2    T2   CT3I  CT2I  CT1I  CT0I                                          90H(144)

SCON  SM0   SM1   SM2   REN   TB8   RB8    TI    RI                                                   98H(152)

SBUF                                                                                            99H(153)

P2    P2.7  P2.6  P2.5  P2.4  P2.3  P2.2  P2.1  P2.0                                              0A0H(208)

IE    EA    -   ET2    ES   ET1   EX1   ET0   EX0                                                      0A8H(168)

*IEN0 EA   EAD   ES1   ES0   ET1   EX1   ET0   EX0                                                   0A8H(168)

+CML0                                                                                                      0A9H(169)

+CML1                                                                                                      0AAH(170)

+CML2                                                                                                       0ABH(171)

+CTL0                                                                                                        0ACH(172)

+CTL1                                                                                                       0ADH(173) 

+CTL2                                                                                                       0AEH(174)

+CTL3                                                                                                       0AFH(175)

P3    RD    WR    T1    T0   INT1  INT0  TXD   RXD                                                       0B0H(176)  

IP    -    -   PT2    PS   PT1   PX1   PT0   PX0                                                                 0B8H(184)

*IP0  -   PAD   PS1   PS0   PT1   PX1   PT0   PX0                                                             0B8H(184)

+P4 CMT1 CMT0 CMSR5 CMSR4 CMSR3 CMSR2 CMSR1 CMSR0                                                        0C0H(192)

+P5 ADC7  ADC6  ADC5  ADC4  ADC3  ADC2  ADC1  ADC0                                                            0C4H(196)

+ADCON ADC.1 ADC.0 ADEX  ADCI  ADCS  AADR2 AADR1 AADR0                                                    0C5H(197)

+ADCH                                                                                                        0C6H(198)

T2CON  TF2  EXF2  RCLK  TCLK ³EXEN2 TR2 C/T2 ³CP/RL2                                                           0C8H(200)

*TM2IR   T2OV  CMI2  CMI1  CMI0  CTI3  CTI2  CTI1  CTI0                                                    0C8H(200)

+CMH0                                                                                                       0C9H(201)

RCAP2L                                                                                                     0CAH(202)

*CMH1                                                                                                       0CAH(202)

RCAP2H                                                                                                     0CBH(203)

*CMH2                                                                                                        0CBH(203)

TL2                                                                                                             0CCH(204)

*CTH0                                                                                                        0CCH(204)

TH2                                                                                                            0CDH(205)

*CTH1                                                                                                        0CDH(205)

+CTH2                                                                                                       0CEH(206)

+CTH3                                                                                                       0CFH(207)

PSW     CY    AC    F0   RS1   RS0    OV    F1    P                                                      0D0H(208)

+S1CON  ENS1  STA   STO    SI    AA   CR1   CR0                                                                0D8H(216)

+S1STA  SC4   SC3   SC2   SC1   SC0    0     0     0                                                            0D9H(217)

+S1DAT                                                                                                           0DAH(218)

+S1ADR              SLAVE ADDRESSGC                                                                              0DBH(219)

ACC     ACC.7 ACC.6 ACC.5 ACC.4 ACC.3 ACC.2 ACC.1 ACC.0        0E0H(224)

+IEN1  ET2  ECM2  ECM1  ECM0  ECT3  ECT2  ECT1  ECT0            0E8H(232)

+TM2CON T2IS1 T2IS0 T2ER  T2B0  T2P1  T2P0  T2MS1 T2MS0    0EAH(234)

+CTCON  CTN3 CTP3  CTN2  CTP2  CTN1  CTP1 CTN0 CTP0       0EBH(235)

+TML2                                                                                                             0ECH(236)

+TMH2                                                                                                            0EDH(237)

+STE    TG47  TG46  SP45  SP44  SP43  SP42  SP41  SP40       0EEH(238)

+RTE    TP47  TP46  RP45  RP44  RP43  RP42  RP41  RP40     0EFH(239)

B       B.7   B.6   B.5   B.4   B.3   B.2   B.1   B.0                                                               0F0H(240)

+IP1  PT2   PCM2  PCM1  PCM0  PCT3  PCT2  PCT1  PCT0       0F8H(248)

+PWM0                                                                                                    0FCH(252)

+PWM1                                                                                                    0FDH(253)

+PWMP                                                                                                    0FEH(254)

+T3                                                                                                           0FFH(255)

Notes:

1. * denotes the difference between 80C552 and 8051

2. + denotes the addition of 80C552

 

2008-12-18第一次印刷深圳市学林电子有限公司版权所有翻版必究

51TRACER仿真XL2000照片

注意: 本手册如果有改动,请以网站51trace仿真器专栏公布

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