单片机原理及应用张毅刚完整答案

1.2 1.3 1.4 1974 1976 1976 1978 1978 1982 8 16 32 1.5 1 4 8 16 32 1.6 MCS-51 8031 8051 8751 8031 1 8 CPU 128B RAM 21 SFR 4 8 I/O 1 2 16 / EPROM 8051 8031 4KB ROM 1 4KB 8751 8031 4KB EPROM 1 4KB EPROM 1.7 MCS-51 80C51 MCS-51 80C51 CMOS CPU RAM 1.8 8051 8751 C A B C D 1.9 B A B C D 1.10 MCS-51 2.1 MCS-51 CPU RAM ROM/EPROM 8031 4 8 I/O P0 P1 P2 P3 1 2 16 / 21 SFR CPU RAM 128B 52 256B 64KB ROM/EPROM 5 2 / I/O CPU 2.2 MCS-51 EA PC 0FFFH 8051 8751 4KB 8031 2.3 MCS-51 12 1 2.4 MCS-51 6 MHz 1 2.5 5 5 MCS-51 5 0 INT0 0003H 0 T0 000BH 1 INT1 0013H 1 T1 001BH 0023H 2-1 5 2.6 RAM 30H 26H 2.7 A 63H P 0 2.8 A 8031 CPU RAM EPROM X B X C MCS-51 I/O 1 D PC 2.9 8031 R4 04H PSW= 00H 0 2.10 1 12MHZ 1 CPU 12 6 S1-S6 2 P1 P2 1 12 S1P1 S1P2 S2P1 S2P2 S6P2 12MHz 1 2.11 PC DPTR A DPTR PC X B 16 C 1 D DPTR 2 8 PC 2.12 RAM 00H-1FH 32 4 8 8 R0 R7 20H 2FH 16 128 1 00H 7FH 2.13 8031 EA 2.14 RAM 128 3 00H 1FH 32 4 8 8 R0 R7 PSW RS1 RS0 20H 2FH 16 128 1 30H 7FH RAM 2.15 A PC B RAM X C 8031 21 X 2.16 PC C A B C D 2.17 PC PC 2.18 P3 P3.0 RXD P3.1 TXD P3.2 INT0 0 P3.3 INT1 1 P3.4 T0 0 P3.5 T1 1 P3.6 WR P3.7 RD 2.19 MCS-51 PC MCS-51 PC 16 64 KB 2.20 MCS-51 2.21 A PC 1 B C MCS-51 1 1 s X D SP X 2.22 MCS 51 ALE MCS-51 3.1 (1) MOV 28H R2 (2) DEC DPTR (3) INC DPTR (4) CLR R0 (5) CPL R5 (6) MOV R0 R1 (7) PUSH DPTR (8) MOV F0 C (9)MOV F0 Acc.3 (10)MOVX A R1 (11) MOV C 30H (12)RLC R0 3 8 10 11 3.2 A B C X 3.3 A DPTR PC 3.4 MCS-51 7 # DPTR PC A 16 rel PC 3.5 MCS-51 MCS-51 28 24 25 17 17 3.6 SFR SFR 8 SFR SFR A B DPTR 3.7 3.8 A 30H 1000H: MOVC A A+PC 1031H A 3.9 MCS-51 PC DPTR PC DPTR 3.10 3.11 PUSH A PUSH B POP A POP B A B 3.12 A=02H SP=52H 51H =FFH 52H =FFH POP DPH POP DPL MOV DPTR 4000H RL A MOV B A MOVC A A+DPTR PUSH A MOV A B INC A MOVC A A+DPTR PUSH A RET ORG 4000H DB 10H,80H,30H,50H,30H,50H A=50H SP=50H (51H)=30H (52H)=50H PC=5030H 3.13 A Acc.3 Acc.4 Acc.5 Acc.6 0 ANL A #87H B A 4 0 ANL A #C3H C Acc.2 Acc.3 1 ORL A #0CH 3.14 A=83H R0 =17H 17H =34H ANL A #17H ORL 17H A XRL A R0 CPL A A 0CBH 3.15 A=55H R3=0AAH ANL A R3 A=(00H) R3=(0AAH) 3.16 DPTR=507BH SP=32H 30H =50H 31H =5FH 32H =3CH POP DPH POP DPL POP SP DPH=(3CH) DPL=(5FH) SP=(4FH) 3.17 SP=60H A=30H B=70H PUSH A PUSH B SP 62H 61H 30H 62H 70H 3.18 3-3 3-7 16 FF C0 E0 E5 F0 F0 FF MOV R7 A C0 E0 PUSH 0E0H E5 F0 MOV A 0F0H F0 MOVX DPTR, A MCS-51 4.1 1 2 A MCS-51 B C I/O 3 4.3 ROM/EPROM 4.4 1000H ORG 1000H TAB1 EQU 1234H TAB2 EQU 3000H DB DW TAB1 TAB2 70H (1000H) = M (1001H) = A (1002H) = I (1003H) = N (1004H) = 12H (1005H) = 34H (1006H) = 30H (1007H) = 00H (1008H) = 00H (1009H) = 70H 4.5 1 2 3 RET PC 4 RET PC 5 8 6 4.6 1 RAM 45H 4 0 4 1 MOV A 45H ANL A #0FH ORL A #0FH MOV 45H A 4.7 A=02H SP=42H 41H =FFH 42H =FFH POP DPH POP DPL MOV DPTR, #3000H RL A MOV B, A MOVC A, A+DPTR PUSH A MOV A, B INC A MOVC A, A+DPTR PUSH A RET ORG 3000H DB 10H,80H,30H,80H,50H,80H A=(80H) SP=(40H) (41H)=(50H) (42H)=(80H) PC=(8050H) 4.8 12MHz 7B0F MOV R3,#15 1 7CFF DL1: MOV R4,#255 1 8B90 DL2: MOV P1,R3 2 DC DJNZ R4,DL2 2 DB DJNZ R3,DL1 2 22 RET 2 2 2 255 1 2 15 1 2 15348 s 4.9 A=83H R0 =17H 17H =34H ANL A #17H ORL 17H A XRL A R0 CPL A A 0CBH 4.10 RAM 30H50H 0AAH 51H 51H ORG 0000H MOV R0, #30H MOV R2, #21H LOOP: MOV A, R0 CJNE A, #0AAH, NOT MOV 51H, #01H SJMP DEND NOT: INC R0 DJNZ R2, LOOP MOV 51H, #00H DEND: SJMP DEND 4.11 RAM 20H40H 41H ORG 0000H MOV R0, #20H MOV R2, #21H MOV 41H, #00H LOOP: MOV A,R0 CJNE A, #00H, NOTE INC 41H NOTE: INC R0 DJNZ R2, LOOP END 4.12 SP=60H LABEL 3456H LCALL 2000H 2000H LCALL LABEL SP PC LCALL