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Transcription

1

2 a)8088/8086 b)

3 1 2 3

4 -(2) -

5 48 (48 6) 1 2

6 DAQCHINA IC IC BBS 学习网站

7 CAD Wave6000W Microsoft Office Visio 2003 Protel 99 SE DVCC

8 ENIAC KW M s 1970 s 50

9 ( )

10 1.1.4 (CPU) Centre Porcess Unit ( ) PC (Personal Computer) CPU RAM ROM / I/O

11 Intel4004 (4 ) 1974Intel8080 (8 ) Motorola M6800 Zilog Z80 Intel 8080A 8085A 1978Intel8086 (16) Motorola M68000 Zilog Z8000 Intel 8088(8 8086) 1979IBM 1983Intel Intel Pentium Pentium II Pentium III Pentium IV

12 (SCM) Single Chip Microcomputer MCU Microcontroller Unit Enbedded Microprocesser Enbedded Microcontroller

13 Intel MCS-48 8 CPU I/O8 RAM ROM 4KB 1980Intel MCS-51 (16 64KB 8 ) 8 CPU I/O16 RAM ROM SFR( SFR ) 1982Intel MCS CPU 8 10 A/D PWM D/A Motorola M6800 Zilog Z8 Rockwell

14 1990Intel ( WDT A/D D/A LED/LCD/VFD I 2 C/CAN/USB ) 2 (CMOS RISC ISP ) 3 ( ) ATMEL 89c51 89c2051 Philips 8Xc51 WENBOND W78c51

15 美糊立 美溢立 益糊 著熟膜 种点熟 族嵌情度 度必族 情必 必 度控 拍 花肯溢美膜 懂嵌 族嵌拍度 懂磁 美糊立 度必族 情必 必 度控 拍 花肯溢美膜 懂嵌 族操拍度 懂磁 状累美糊立 度必族 情必 必 度控 拍 花肯溢美膜 懂嵌 族暂点拍度 懂磁 环种溢肯留 度必族 情必 必 度控 拍 花肯溢美膜 懂嵌 族嵌情必 必拍控 情必 情 度控 控 花肯溢美膜 懂嵌 族嵌拍必 族磁 美糊立 必拍控 情必 情 度控 控 花肯溢美膜 懂嵌 族操拍必 族磁 状累美糊立 必拍控 情必 情 度控 控 花肯溢美膜 懂嵌 族暂点拍必 族磁 环种溢肯留 必拍控 情必 情 度控 控 花肯溢美膜 懂嵌 族暂点必嵌拍度 必磁 环种溢肯留 度必族 度拍 必 度控 拍 花肯溢美膜 必嵌 族暂点度嵌拍度 度磁 环种溢肯留 度必族 度拍 必 度控 拍 花肯溢美膜 必嵌

16

17 4 IC 5 PLC 6 7

18 8 9 PID

19 1.3

20 20

21 1868 C.Sholes QWERTY

22 H.Hollerith IBM

23 1895 J. Fleming

24 1935IBM IBM601

25 20 K.Zuse Z1

26 IBM H.Aiken G. Hopper 1

27 J. MauchiyJ.Eckert ENIAC (Electronic Numerical Integrator And Computer): , /

28 n1/.htm

29

30 10

31

32 > 1 1 (Decimal) D=

33 2 (Binary) B= =11D 3 Hexa-decimal ) a b c d e f ,16 1 3eH= =62D=0011,1110B

34 A B C D E F

35

36

37 2.1.2 () 1( ) () FH 00H FFH 80H

38 1 X1= B [X1] = B [X1] = B [X1] = B 2 X2= B [X2] = B [X2] = B [X2] = B [[X2] ] = B=[X2]

39 = (12)+3 2 (mod) 12 Z=nK+Y (n ) Z YK

40 3 ( ) = 24 + [ 11] = ,1000B+1111,0101B =1,0000,1101B 2 8 =256 11= 0000,1011B245=1111,0101

41 3- BCD (Binary Coded Decimal) BCD 0011,0101BCD=35=0010,0011B 2

42 4 ASCII (American Standard Code for Information Interchange) ASCII( ) DEL o O? / US SI 1111 n N >. RS SO 1110 } m ] M = - GS CR 1101 l \ L <, FS FF 1100 { k [ K ; + ESC VT 1011 z j Z J : * SUB LF 1010 y i Y I 9 ) EM HT 1001 x h X H 8 ( CAN BS 1000 w g W G 7 ETB BEL 0111 v f V F 6 & SYN ACK 0110 u e U E 5 % NAK ENQ 0101 t d T D 4 $ DC4 EOT 0100 s c S C 3 # DC3 ETX 0011 r b R B 2 DC2 STX 0010 q a Q A 1! DC1 SOH 0001 p 0 SP DLE NUL b6b5b4 b3b2b1b0

43 Y=A B 2 Y=A B Y B A Y B A

44 3 4 Y=A B Y A Y B A A Y =

45 Y B A Y B A B A Y + = B A Y =

46 美肯经经 R S R S Q Q

47 2 D 肯熟点种磁美 经 经 D 0 1 Q LS74 D (Dual Positive-Edge-Triggered D Flip-Flops)

48 3 J K 着点种磁磁 肯 美 经 经 J K Q LS113 J K (Dual J-K Edge-triggered Flip-Flop)

49

50 1 (Buffer)/ (Latch) 熟嵌 熟度 熟必 熟情 度 必 情 懂 熟 经 熟 经 熟 经 熟 经 点种磁 点种美 点种磁 点种美 点种磁 点种美 点种磁 点种美 点种美 点种磁 熟嵌 益箱 熟度 益箱 熟必 益箱 熟情 益箱

51 2 (Shifting Register) 点种美 度点种磁熟点种美点种磁 熟经点种美点种磁熟嵌 必经熟经点种磁点种美熟度 情经熟点种磁点种美 懂熟必熟情

52 3 (Counter) 1 1 / 1 点种美点种美点种磁点种磁点种美熟点种美经经点种磁熟 度点种磁 度着点种美点种磁磁着经点种美 必磁点种磁 必经经点种磁熟点种美经经点种磁熟点种美经经着经经 情磁点种磁点种美 情着经 懂点种磁磁点种美 懂 1

53 4 (Tri-state Buffer) /

54 2.2.4 / / 1 点累花点累花点累花点累花点累花点累花点累花点累花 2 拍度拍度拍度拍度

55 3 4 度 操懂必懂懂操懂必懂懂操懂必懂懂操懂必懂懂操懂必懂懂操懂必懂懂操懂必懂懂操懂必懂懂族 必 操懂必懂拍操懂必懂拍操懂必懂拍操懂必懂拍操懂必懂拍操懂必懂拍操懂必懂拍操懂必懂拍族 岁 情 操懂情操情操懂情操情操懂情操情操懂情操情操懂情操情操懂情操情操懂情操情操懂情操情族熟族熟族熟族熟族熟族熟族熟族熟

56 N w 2 = N W

57 ns ns 2 (Byte) 1kB 1024B 1024KB 1MB 1024MB 1GB 1B 8bit

58 RAM Random Access Memory RAM SRAM DRAM FLASH NVSRAM FRAM

59 2 ROM Read Only Memory ROM ROM (ROM) ROM (PROM) PROM (EPROM) EPROM (EEPROM)

60 ROM 1 0 2

61 P30 P ,8 9 10,

62 1 11D D H 4 BCD H3738

63 3.1 89S C51 89S51 DPTR WDT ISP Flash Memory 89S52 T2

64 2 89s51

65 s s s51

66 3 89s51 1 DIP 40 42

67 2 TQFP 3 PLCC

68 4 89S51 1 P0.0 P0.7(39 32 ) 8I/O 88 P1.0 P1.7(21 28 ) 8 I/O P1.0(T2) P1.1(T2 EX) P1.5(MOSI) P1.6(MISO) P1.7(SCK) P2.0 P2.7(21 28 ) 8 I/O 8 P3.0 P3.7(10 17 ) 8 I/O RxD TxD INT0 INT1 T0 T1 ( )( )( )( )( )( )( WR)( RD)

69 2 RST(9 ) ALE PROG (30 ) P0 8 87C51 EPROM() PSEN (29 ) EA VPP(31 ) EACPU 0000H4KB( 80C51 ROM ) EA CPU 87C51EPROM VPP

70 3 Vss(20 ) Vcc(40 )+5V DC 4 XTAL1(19 ) HMOS CHMOS XTAL2(18 ) HMOS CHMOS

71

72 3.2.2 CPU CPU 1 1) 2) 3) PC16 1PC 1

73 2 1) 2) ALU ACC(Accumulator) PSW(Program Status Word) BCD PSW D7 Cy D6 AC D5 F0 D4 RS1 D3 RS0 D2 OV D1 F1 D0 P

74 3.2.3 度 累点 溢种花

75 0000H 0001H 0002H H 0101H.. 02H 01H 00H... 74H E0H.. LJMP 0100H MOV A,#0E0H

76 S51

77 mov movx 64K 16 EA H 80C H 0 000BH T0 0013H 1 001BH T1 0023H 002BH T2 3MOVC PC DPTR

78 环环环环留 128 B 256B K K I/ORAM I/O WR RD I/O MOVX I/O AA 嵌嵌嵌嵌留 美溢立

79 3 1128B RAM 32B(00H~1FH) 4 R0~R7 RS1 RS0 0 00H~07H RS1=0 RS0=0 1 08H~0FH RS1=0 RS0=1 2 10H~17H RS1=1 RS0=0 3 18H~1FH RS1=1 RS0=1 8 R7 R6 R5 R4 R3 R2 R1 R0 16B(20H~2FH) RAM 00H~7FH 128 (30H~7FH) 环环留 族嵌留 情嵌留 必嵌留 89S5280H~0FFH 嵌嵌留 肯环美 美溢立 嵌 情

80 2128B SFR P47 (3-5) SFR( ) H~FFH T2CON B T2MOD XXXXXX00B TL2 TH2 RCAP2L RCAP2H B B B B 89S52 T2 89S51 WDTDPTR

81 80C Acc B B PSW SP DPTR DPH DPL P0~P3 P0~P3 IP IE TMOD / TCON / TH0 T08 TL0 T08 TH1 T18 TL1 T18 SCON SBUF PCON 89S51 AUXR1 AUXR WDTRST DP1H DP1L 89S52 TH2 TL2 RCAP2H RCAP2L T2CON T2MOD

82 PSW D7 Cy D6 AC D5 F0 RS1 RS0 CY ( ) ( 7)CY l 0 CY C D7Cy D0Cy AC ( )( 3) ( ) AC 1 0 ACBCD RS0 RS1: OV OV 1 OV 0 OV 1255 OV 1 0 P 1 P C51 A P F1 F0 D4 D3 D2 OV D1 F1 D0 P

83 SP SP 1 SP07H SP SP 30H~7FH SP SP 1 1

84 DPTR DPTR 89S51 DPTR DPTR DPTR0 DPTR1 AUXR1 1) 2) DPS 1 DPTR1 DPS 0 DPTR0 D0 D7 D7 D6 D5 D4 D3 D2 D1 D0 DPS DPTR 1) DPTR DPTR 2)MOV DPTR,#34D3H MOV DPH,#34H MOV DPL,#0D3H

85 3.4 1 P080H IO / 熟经累嵌密魏 经 岁 立花薇 获点点 膜度 膜必 累嵌密魏

86 2 P190H IO / ISP T2 T2EX 累度密魏 熟 经 经 获点点 累度密魏膜

87 3 P20A0H IO / 获点点 熟经累必密魏 经 立花薇 膜 累必密魏

88 4 P30B0HP IO / 熟经累情密魏 经 获点点 累情密魏膜

89 5 P30B0H I/O 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 RAM P3.7 RD RAM

90 6 I/O 1 P0Pl P3 P1 P3 2 P08 LSTTL P0 I O NMOS I O 3 P1 P34 LSTTL 4 P0 P3 I O 1 FET 1

91 3.5 80C T( )1MHZ1 2 S 2 6 S12 MC 12T

92 MHz C1 C220pF 100pF 89S51 33MHz

93 2 XTAL1 XTAL2 HMOS CHMOS

94 C51 80C RST RST RST RST CPU CPU ALE ALE ALE ALE 1 RAM RAM P0 P0 P3 P3 0FFH 0FFH SP SP 07H 07H PC PC 0000H 0000H SFR SFR 0 PSEN PSEN

95 获点点 族嵌拍度 美状肯状膜 获点点 族嵌拍度 美状肯状膜 获点点 族嵌拍度 点必必 μ 环 获点点 美肯膜岁获累熟 点必 必必 μ 环 点度必必 μ 环 获点点 美肯膜岁获累熟 美度 必嵌嵌 点必必 μ 环 获点点 美肯膜岁获累熟 美度风 美必度风 美度度风 美必度风 获肯肯 获肯肯 获肯肯 喻身器 喻过器 喻那器

96 IDL IDL IDL IDL PD PD PD PD GF0 GF0 GF0 GF0 GF1 GF1 GF1 GF SMOD SMOD SMOD SMOD D0 D0 D0 D0 D1 D1 D1 D1 D2 D2 D2 D2 D3 D3 D3 D3 D4 D4 D4 D4 D5 D5 D5 D5 D6 D6 D6 D6 D7 D7 D7 D C C51 PCON PCON 87H 87H

97 IDL IDL CPU CPU 2 PSW PSW PC PC SP SP ACC ACC RAM RAM 3 3mA 3mA 3 CPU CPU 1 SFR SFR ( IDL IDL 0) 0) RAM RAM 2

98 PD PD CPU CPU 2 PSW PSW PC PC SP SP ACC ACC RAM RAM µA 2V 2V 3 CPU CPU 1 RAM RAM SFR SFR 2

99 P

100

101 12M SFR RAM 3.8 P0.05V

102 5 Rn Ridatadata16 direct addr11 addr16 rel X,(X),((X))

103 4.1 80C51 统汇 C 的 1 7 ( )

104

105 4.2 80C517

106 Rn Ri #data #data16 direct addr11 addr16 rel bit / X X Rn R0 R7(n 0 7) Ri R0 R1(i 0 1) #data 8 8 #data direct 8 128RAM SFR addr11 addr rel:8, bit RAM / X RAM (X) X

107 # MOV A3AH MOV DPTR #3FA6H

108 2 80C51 MOV A 3AH 1) 2) 128RAM 3)

109 3 1) A 2) BA 3) DPTR MOV A R2 INC DPTR 4)R0 R7 PSWRS1 RS0

110 4 R0 R1 DPTR 1) R0 R1 RAM 2) SP (128) 2) DPTR R0 R1 MOV AR0 MOVX

111 5 ( ) DPTR PCA A MOVC AA DPTR MOVC A,@A+PC

112 MOVC AA DPTR DPH 20H DPL 00H 0H 47H 必嵌懂嵌留必嵌懂度留 暂情留 溢种花 必嵌状糊留 懂操留 喻累点器模必嵌状嵌留

113 6 PC PC ( goto ) JC 03H

114 SJMP 2056H 必嵌嵌嵌留必嵌嵌度留必嵌嵌必留 族嵌留拍懂留 龙金首模拍懂留 累点 必嵌嵌必留 溢种花 必嵌拍控留 喻累点器模必嵌拍控留

115 7 RAM SFR SETB 20H CLR C

116 4.3 PSW ACCP

117 4.3.1 RAM 1A MOV Adata data A MOV A direct (direct) A MOV A Rn Rn A MOV ARi (Ri) A

118 4.3.1 RAM 1 A 5BH R1 10H R2 20H R3 30H (30H) 4FH MOV R1 A A R1 MOV R2 30H (30H) R2 MOV R3 #83H 83H R3 : R1 5BH R2 4FH R3 83H 2 Rn MOV Rn #data data Rn MOV Rn direct (direct) Rn MOV Rn A A Rn

119 4.3.1 RAM 3 16 MOV DPTR, #DATA16 MOV DPTR #1234H

120 4.3.1 RAM RAM 4 MOV direct #data ;data (direct) MOV direct direct ;(direct) (direct) MOV direct A ;A (direct) MOV direct Rn ;Rn (direct) MOV directri ;(Ri) (direct)

121 4.3.1 RAM 2 R0=60H (60H)=50H 5 MOV Ri A MOV 40HR0 (R0) (40H) MOV Ri direct ;A (Ri) H50H ;(direct) (Ri) MOV Ri #data ; data (Ri)

122 4.3.2 RAM H 2230H MOV DPTR #2040H ;2040H DPTR MOVX ADPTR MOVX ADPTR ;(DPTR) A MOVX DPTR2230H DPTR A ;2230H DPTR MOVX DPTR A ;A (DPTR) MOVX ARi MOVX Ri A ;(DPTR) A ;A (DPTR) ;(Ri) A ;A (Ri)

123 C51 MOVC AA PC ;PC 1 PC (A PC) A MOVC AA DPTR ;(A DPTR) A

124 4.3.4 PUSH direct POP direct ;SP 1 SP (direct) (SP) ;(SP) (direct) SP 1 SP SP SP 1SP 1 PSW

125 4.3.5 XCH A Rn ;ARn XCH A direct ;A(direct) XCH ;A (Ri) XCHD ;A.3 A.0(Ri.3 Ri.0) SWAP A ;A.3 A.0A.7 A.4

126 BCD 1 2A

127 4.4.1 AA 7 ADD A Rn A Rn A CY 1 0 ADD 3 A direct A (direct) A ADD ARi AC 1 0 A (Ri) A ADD A #data A data A OV OV 1

128 4.4.2 Cy 1 AA 2 MOV AR1 ADDC ADD A Rn AR0 A Rn+Cy A MOV R1 A INC R0 ADDC INCARi R1 MOV AR1 ADDC AR0 ADDC A direct A (direct) +Cy A A (Ri) +Cy A ADDC A #data A data+cy A

129 4.4.3 Cy A A 7 CY 1 0 SUBB A Rn CLR C A Rn CA 3 AC 1 0 SUBB A direct A (direct) CA SUBB ARi A (Ri) CA SUBB A #data A data CA OV OV 1

130 4.4.4 MUL AB A B BA PSW Cy 0 FFHOV 1 0

131 4.4.5 DIV AB A B AB PSW CY OV B 0A BOV 1 P

132 INC A A 1 A INC Rn Rn 1 Rn INC direct (direct) 1 (direct) INC Ri (Ri) 1 (Ri) INC DPTR DPTR 1 DPTR

133 DEC A A-1 A DEC Rn DEC DPTR Rn-1 Rn DEC direct (diret)-1 (direct) DEC R1 (Ri)-1 (Ri)

134 DA A DA A BCD BCD ADD ADD ADDC ADDC BCD BCD BCD BCD A0 A0 3 9 AC AC A4 A4 7 9 Cy Cy

135 4.5 PSW ACC P A

136 4.5.1 ANL A Rn ARn A ANL A direct A(direct) A ANL ARi A (Ri) A ANL A #data 0 Adata A 1 A 8FH (40H) 96H ANL direct A (direct) A (direct) ANL A 40H ANL direct #data (direct) data (direct) A 86H (40H) 96H P 1

137 4.5.2 ORL A Rn A Rn A ORL A rect A (direct) A 1 ORL ARi A (Ri) A 2 A 1AH R0 45H ORL A #data A data A (45H) 39H ORL direct A ORL (direct) A (direct) AR0 ORL direct #data (direct) data (direct) A 3BH R0 45H (45H) 39H P 1

138 4.5.3 XRL A,Rn ;A Rn A XRL A,direct ;A (direct ) A XRL A, Ri 3 A 87H (32H) 77H ;A (Ri) A XRL A,#data ;A data A XRL 32H A XRL direct,a A 87H ;(direct) A (direct) XRL direct,#data ;(direct) data (direct) (32H) F0H P 0

139 CPL A A A 0 CLR A 0 A 4 A B CPL A A B CLR A A 00H

140 4.5.5 RL A Acc.7 Acc.0 RLC A Cy Acc.7 Acc.0 RR A Acc.7 Acc.0 RRC A Cy Acc.7 Acc.0

141 4.6 PC

142 2 PC 1245H 1247H PC 0001,0010,0100,0111B ROMPC LJMP ADDR PC 0001,0XXX,XXXX,XXXXB 127 AJMP ADDR11 ( (3 2 ROM ROM SJMP 64K rel 2K PC

143 JZ rel ;A=0,pc+2+rel pc ;A 0, pc+2 pc JNZ rel ;A 0,pc+2+rel pc ;A=0, pc+2 pc

144 CJNE A direct rel A (direct) PC+3 PC 0 C ; A (direct) PC+3+rel PC 0 C ; A (direct) PC+3+rel PC 1 C CJNE A #data rel A data PC+3 PC 0 C ; A data PC+3+rel PC 0 C ; A data PC+3+rel PC 1 C CJNE Rndata rel Rn data PC+3 P 0 C ; Rn data PC+3+rel PC 0 C ; Rn data PC+3+rel PC 1 C CJNE Ridata rel (Ri) data PC+3 PC 0 C ; (Ri) data PC+3+rel PC 0 C ; (Ri) data PC+3+rel PC 1 C

145 CJNE MOV 03H,#04H MOV 04H,#03H MOV A,03H CLR C CJNE A,04H,LP1 MOV 07H,A SJMP LP3 LP1: JC LP2 MOV 05H,A MOV 06H,04H SJMP LP3 LP2: MOV 06H,A MOV 05H,04H LP3: END

146 DJNZ Rn, rel DJNZ direct, rel ;Rn-1 Rn ;Rn 0 PC+2+rel PC ;Rn 0 PC+2 PC ;(direct)-1 (direct) ; (direct) 0 PC+3+rel PC ;(direct) 0 PC+3 PC

147 DJNZ ; MOV R3,#08H MOV A,#0FEH LP3: RR A DJNZ R3, LP3

148 4.6.3 JMP A DPTR A+DPTR->PC DPTR A

149 ORG 0000H LJMP 0040H ORG 0040H MOV DPTR,#TAB1 MOV R3,#01H MOV A,R3 ADD A,R3 JNC NOAD INC DPH NOAD: TAB1: AJMP OPR0 AJMP OPR1 AJMP OPR2 AJMP OPR3 AJMP OPR4 ORG 0060H OPR0: SJMP TT ORG 0070H OPR1: LJMP TT ORG 0080H OPR2: LJMP TT ORG 0090H OPR3: LJMP TT ORG 00A0H OPR4: LJMP TT

150 4.6.4 LCALL addr16 ;PC+3 PC ; SP+1 SP,PC.7 PC.0 (SP) ;SP+1 SP,PC.15 PC.8 (SP) ;addr16 PC ACALL addr11 ;PC+2 PC ;SP+1 SP,PC.7 PC.0 (SP) ;SP+1 SP,PC.15 PC.8 (SP) ;addr11 PC.10 PC.0 RET ;(SP) PC.15 PC.8 SP-1 SP ;(SP) PC.7 PC.0 SP-1 SP RETI ; RET

151 4.6.5 NOP 1

152 4.7 (1)( )D4H (2) PSW.4 (DOH).4 (3) RS1 (4) bit SUB.REG bit RS1

153 4.7.1 MOV C bit bit C MOV bit C C bit CLR C 0 C CLR bit 0 bit CPL C C C CPL bit bit bit SETB C 1 C SETB bit 1 bit

154 4.7.3 ANL C bit Cbit C ANL C /bit Cbit C ORL C bit Cbit C ORL C /bit C bit C

155 4.7.4 JC rel ;C 1 PC 2 rel PC ;C 0 PC 2 PC JNC rel ;C 0 PC 2 rel PC ;C 1 PC 2 PC JB bit,rel ;bit 1 PC 3 rel PC ;bit 0 PC 3 PC JNB bit,rel ;bit 0 PC 3 rel PC ;bit 1 PC 3 PC JBC bit,rel ;bit 1 PC 3 rel PC 0 bit ; bit 0 PC 3 PC

156 1 RAM 40H 50H 40HRAM40H 150HRAM50H 120H1 MOV A,40H CJNE A,50H, L1 SETB 20H RET L1: JC L2 SETB 50H RET L2: SETB 40H RET

157 1 A05H 205H R2 3R1 08HA 4 90HA 5 FFFFH R3 6 2CH

158 1 A05H MOV A,05H MOV A,#05H

159 205H R2 MOV R2,#05H MOV MOV R2,05H

160 3R1 08H A MOV R1,08H MOV A,@R1 MOV R1,#08H (08H)->R1 MOV A,@R1 (R1)->A

161 4 90H MOV A,90H MOV R2,#90H MOV A MOV A,#00H 00H->A MOV DPTR,#0090H 0090H->DPTR MOVC A+DPTR ->A

162 5 FFFFH R3 MOVX MOVX MOV DPTR,#FFFFH FFFFH->DPTR MOVX (DPTR)->A MOV R3,A A->R3

163 3000H4000H 85000H H 03H 04H05H 06H07H A P1 4

164 P97 2,3,4,5 6,

165

166 ORG 0000H LJMP 0040H ORG 0040H MOV DPTR,#3000H MOV A,#67H MOVX MOV R1,A MOV DPTR,#4000H MOV A,#01H MOVX CLR C ADD A,R1 MOV DPTR,#6000H JC LP1 MOV R2,01H SJMP LP2 LP1: MOV R2,00H LP2: MOV A,R2 MOV DPTR,#5000H END

167

168 ORG 0000H LJMP 0040H ORG 0040H MOV 03H,#04H MOV 04H,#03H MOV A,03H CLR C CJNE A,04H,LP1 MOV 07H,A SJMP LP3 LP1: JC LP2 MOV 05H,A MOV 06H,04H SJMP LP3 LP2: MOV 06H,A MOV 05H,04H LP3: END

169

170 ORG 0000H LJMP 0040H ORG 0040H MOV A,#0FH SWAP A ANL A,#0F0H MOV P1,#00H MOV P1,A

171 3000H 3009H 10 RAM30H 39H ROM1000H 1009H 3000H 3009H A,B,C8 RAM30H RAM 32HRAM31H

172

173 ORG 0000H LJMP 0040H ORG 0040H MOV R2,#0AH MOV R1,#30H MOV DPTR,#3000H LOOP: MOVX INC DPTR INC R1 DJNZ R2,LOOP

174

175 ORG 0000H LJMP 0040H ORG 0040H MOV DPTR,#1000H ORL AUXR1,#01H MOV DPTR,#3000H MOV R1,#0AH LOOP: ANL AUXR1,#0FEH MOV A,#00H MOVC ORL AUXR1,#01H INC DPTR ANL AUXR1,#0FEH INC DPTR DJNZ R1,LOOP

176

177 ORG 0000H LJMP 0200H ORG 0200H MOV R1,#04H MOV R2,#02H MOV R3,#03H MOV A,R1 SUBB A,R2 JC LP1 LP11: MOV A,R1 SUBB A,R3 JC LP2 MOV 32H,R1 MOV A,R2 SUBB A,R3 JC LP3 MOV 31H,R2 MOV 30H,R3 LP1: MOV A,R1 XCH A,R2 MOV R1,A SJMP LP11 LP2: MOV 32H,R3 MOV 31H,R1 MOV 30H,R2 SJMP OVER LP3: MOV 30H,R2 MOV 31H,R3 SJMP OVER OVER: END SJMP OVER

178

179 ()

180 ( )

181

182 2

183 2 1 ORG ORG (exp) exp 16 ( ) 2 END END

184 2 3 DB(Define Byte) ( ) ASCII DB ASCII 4 DW(Define Word) ( ) ASCII DW ASCII

185

186

187 2 5 EQU(Equate) EQU AA EQU R1 6 BIT BIT ABC EQU P1.0

188 2 7 DATA DATA DATA EQU DATA EQU

189 8)DS ORG 500H DS 10H DB 4BH,5AH

190

191 ) 2) 3)( ) 4) 5) 6)

192 ( )

193 H BCDASCII 21H 22H ORG 2000H MOV A 20H BCD 10H MOV B10H10H 4 BCD A B 1 BCD DIV AB 430H 2 ASCII H 39H ORL B30H4 BCD ASCII MOV 22H B ASCII ORL A30H4 BCD ASCII MOV 21H A

194 H BCDASCII 21H 22H ORG 2000H MOV R0 #22H MOV R0 #00 20H4 BCD MOV A 20H 4 BCD 4 XCHD AR0 ORL 22H #30H SWAP A ORL A #30H MOV 21H A

195 BCD 23H 22H 33H 32H 43H 42H ORG 2000H MOV A 22H ADD A 32H (22H) (32H) A BCD DA A BCD MOV 42H A MOV A 23H BCD ADDC A 33H (33H) (23H) C A DA A MOV 43H A

196 R1 R0 R3 R2 ORG 2000H MOV A R0 A CPL A ADD A # INC CY 1 MOV R2 A R2 MOV A R1 A CPL A ADDC A #80H MOV R3 A R3

197 () 2 3 4

198 H 20H 21H ORG 30H CLR A A MOV R2 20H 1 MOV R122H 2 LP: CLR C 3 SUBB AR1 JNC NEXT 4 SJMP NEXT1 () NEXT NEXT1 INC R1 DJNZ R2 LP R2 0 MOV AR1 ADD AR1 MOV 2lH A 21H LP1 SJMP LP1

199 MHZ 10ms MOV R1,#DATA DL2: MOV R0,#DTATA2 DL1: NOP NOP DJNZ R0,DL1 DJNZ R1, DL2 END = (1+(1+(1+1+2)*DATA2+2)*DATA)*MC

200

201 RAM 3 80C51

202 5.3.2 / 1 5AH X 5BH ORG 30H MOV A,5AH MOV B A MUL AB X 2 BA MOV R1 A MOV A 5AH XA CJNE A #10 L1 2 X X < Y = X X X > 15 X 2 R1 X SJMP X Y END L1 JC L2 X l0 L2 MOV R0 #41 >10: X 15 CJNE A #10H L3 16 L3 JNC L4 X 15 L4 MOV A R1 ADD A #08 10 蔽 度把 Y 蔽必 施 MOV R0 A SJMP L4 L2 MOV A R1 ;<10 CLR C SUBB A #01 X<10 y X 2 1 MOV R0 A L4 MOV 5BH R0

203 A=(5AH) R0=A*A A=(5AH) A=10? A>10 (50H)=R0-1 (50H)=R0+8 END A>15 (50H)=41

204 5.3.3 DPTR(16+A 8 PC (1)DPTR A (2) A 0 DPTR

205 5.3.3 DPH JUMP1: MOV DPTR,#JPTAB1 MOV A,R7 ADD A,R7 ;AJMP JNC NOAD ; 256 DPTR INC DPH NOAD: 2 JPTAB1: AJMP OPR0 AJMP OPR1 AJMP OPR2 AJMP OPRn

206 DPTR 3 JUMP2:MOV DPTR,#JPTAB2 3 MOV A,R6 MOV B,#3 MUL AB ADD A,DPH MOV DPH,A MOV A,R7 MOV B,#3 MUL AB XCH A,B 3 ; ;DPTR ; ADD A,DPH ;DPTR MOV DPH,A XCH A,B JBTAB2:LJMP OPR0 LJMP OPR1 LJMP OPRn

207 JUMP: MOV A,R7 MOV DPTR,#TAB3 MOVC A,@A+DPTR TAB3: DB OPR0_TAB3 DB OPR1_TAB3 DB OPR2_TAB3 DB OPR3_TAB3 DB OPR4_TAB3 OPR0 OPR1 OPR2 OPR3 OPR4 [ 0] [ 1] [ 2] [ 3] [ 4]

208 JUMP4:MOV DPTR,#TAB4 MOV A,R7 ADD A,R7 ; JNC NADD INC DPH NADD:MOV R3,A ; MOVC A,@A+DPTR XCH A,R3 INC A ; MOVC A,@A+DPTR PUSH MOV DPL,A ACC MOV A,R3 DPH,R3 PUSH CLR AACC RET TAB4: DW OPR0_ADDR DW OPR1_ADDR DW OPRn_ADDR

209 ASCII TOASCII:MOV A,R0 ANL A,#0FH ADD A,#2 MOVC A,@A+PC MOV R0,A RET DB 30H,31H,32H,33H,34H DB 35H,36H,37H,38H,39H DB 41H,42H,43H,44H,45H,46H

210 2 Y 2 20H0 9 TO2BYTE:MOV DPTR,#TAB MOV A,20H CLR C TAB: DW 0123H RLC A DW 0186H MOV 20H,A DW 0234H INC A DW 0316H MOVC A,@A+DPTR DW 0415H PUSH ACC DW 0520H MOV A,20H DW 0626H MOVC A,@A+DPTR DW 0710H PUSH ACC DW 0818H RET DW 0929H

211

212

213 3 50H 2 16 ASCII 51H 52H ( ORG 0000H AJMP START ORG 0100H START:MOV SP,#3FH PUSH 50H ACALL HASC POP 51H MOV A,50H SWAP A PUSH ACC ACALL HASC POP 52H SJMP $ ; ORG 0200H HASC: DEC SP DEC SP POP ACC ANL A,#0FH ADD A,#7 MOVC A,@A+PC PUSH ACC INC SP INC SP RET TAB: DB DB ABCDEF

214 3 50H 2 16 ASCII 51H 52H ORG 0000H AJMP START ORG 0100H START:MOV A,50H ACALL HASC MOV 51H,A MOV A,50H SWAP A ACALL HASC MOV 52H,A SJMP $ ; ORG 0200H HASC: PUSH DPL PUSH DPH MOV DPTR,#TAB ANL A,#0FH MOVC A,@A+DPTR POP DPH POP DPL RET TAB: DB DB ABCDEF

215 6MHZ0.5s BCD 64H16 30H

216

217 R0=0 R1=0 40H=0 41H=0 64H A 64H A A 4 40H4 A=30H A=A+40H (A)->(23H) A4 4 A 4 41H4 A=30H A=A+41H (A)->(22H)

218 0.5 64H BCD ASCII 22H ASCII 23H

219

220 ; C=A*A+B*B. A,B 10 A31H B32H C 33H

221

222

223 INT1 INT0 (P3.3) (P3.2) T1(P3.5) T0(P3.4) CPU (8DH) TH1 T1 (8BH) TL1 (8CH) TH0 T0 (8AH) TL TCON(88H) TMOD(89H)

224 fosc/ fosc/12 ( 1 1

225 6.1.2 / SFR 1 TMOD 89H D7 D6 D5 D4 D3 D2 Gate C / T M1 M0 Gate C / T D1 M1 D0 M0 (2) / (1)M1 M0 C T C / T 0 C / T =1 M1 M (3)GATE INT 0 INT1 1 GATE 0 TR0 TR1 1 GATE 1 TR0 TR1 1

226 / SFR SFR TF1 8FH IT0 IE0 IT1 IE1 TR0 TF0 TR1 88H 89H 8A H 8B H 8C H 8D H 8E H 2 TCON 88H 1)TF1 1 2)TF0 0 1 TF1 1 0 TF

227 3)TR1 1 4)TR / SFR SFR TF1 8FH IT0 IE0 IT1 IE1 TR0 TF0 TR1 88H 89H 8A H 8B H 8C H 8D H 8E H 2 TCON 88H TRx 0, x GATE 1 1 TRx 1 x GATE 0TRx 1 x INTx

228 / SFR SFR TF1 8FH IT0 IE0 IT1 IE1 TR0 TF0 TR1 88H 89H 8A H 8B H 8C H 8D H 8E H 2 TCON 88H 5)IT1 1 6)IT0 0 ITx 0 ITx 1

229 / SFR SFR TF1 8FH IT0 IE0 IT1 IE1 TR0 TF0 TR1 88H 89H 8A H 8B H 8C H 8D H 8E H 2 TCON 88H 7)IE1 1 8)IE0 0 IEx 1 IEx

230 6.1.3 / 1 (1) TMOD (2) TH0 TL0 TH1 TL1 (3) IE (4) TR0 TR1 1

231 6.1.3 / 2 1 M 0 M M M M X M M THx 方 TLx5 TLx30

232 TL03 13 TH0 TL0 13CPU GATE 1 TR0 1 INT 0 C / T

233

234 ( )

235 4 3 3 T00 3 8TL0 TH0 T T1 2

236 6.3 1 T10P1.1 1ms 6MHz 1) [ ] 2) =250 3)0=[0,0000,1111,1010] TMOD=0000,0000B 4) 1ms 0.5ms0.5ms =1,1111,0000,0110 5) 6MHz 1=2μs 000 =250 TH1=1111,1000B=0F8H = =7942 TL1=0000,0110B=06H =1F06H=1,1111,0000,0110B

237 6.3 1 T10P1.1 1ms 6MHz LP1: LP2: ORG 2000H MOV TL1,#06H MOV TH1,#0F8H MOV TMOD,#0 SETB TR1 JBC TF1,LP2 AJMP LP1 MOV TL1,#06H MOV TH1,#0F8H CPL P1.1 AJMP LP1

238 6.3 2T1P1.21min 12MHz MOV TL1,#0B0H MOV TH1,#3CH MOV TMOD,#10H SETB TR1 L4: MOV 51H,#60 L3: MOV 50H,#20 L2: JBC TF1,L1 AJMP L2 L1: MOV TL1,#0B0H MOV TH1,#3CH DJNZ 50H,L2 DJNZ 51H,L3 CPL P1.2 AJMP L4!

239 6.3 3T12100 P1.0 1) TH1=TL1= =156=9CH 2) TMOD=0110,0000B=60H MOV TMOD,#60H MOV TH1,#9CH MOV TL1,#9CH SETB TR1 DEL: JBC TF1,REP AJMP DEL REP: CPL P1.0 AJMP DEL

240 6.3 MOV TMOD,#0000,1001B ; 16 INT 0 5 T0 MOV TL0,#0 12MHz71H MOV TH0,#0 70H MOV R0,#70H JB P3.2,$ ; SETB TR0 ; ( ) JNB P3.2,$ ; JB P3.2,$ ; 1 T0 CLR TR0 ; T0 2 INC R SJMP $

241 ORG 0000H 6.3 AJMP START C516MHz ORG 0030H T0 P1.2 START: MOV TMOD,# B MOV TH0,#231 MOV TL0,#231 P1.2 SETB TR0 40μs300μs LOOP0: SETB P1.2 MOV R0,#8 50μs LOOP1: JNB 350μs TF0,LOOP1 CLR TF0 ;CJNE R0,#8,LOOP2 CLR P1.2 LOOP2: DJNZ R0,LOOP1 AJMP LOOP0

242 6.3 MOV TMOD,# B MOV TH0,# C5112MHz P1.0 P1.1 2ms MOV TL0,# μs SETB TR0 P1.0 P1.1 1ms 400μs LOOP0: CPL P1.0 MOV R0,#4 LOOP1: CPL P1.1 JNB TF0,$ CLR TF0 LOOP2: DJNZ R0,LOOP1 AJMP LOOP0

243 ;Gate MOV TMOD,# B MOV TH0,# MOV TL0,# C51/ JC LOOP3 MOV 50H,#0 ;1us MOV B,#1 MOV 51H,#0 10ms ;10us ACALL ADDONE MOV 53H,A MOV 52H,#0 ;100us MOV 53h,#0 12MHz AJMP LOOP4 JNZ LOOP2 ;1ms LOOP3: ADD A,#10 MOV A,54H MOV 54h,#0 BCD 50H ;10ms MOV 55h,#0 MOV 50H,A ;100ms (50H ) AJMP $ MOV 56h,#0 ;1s 1 JB P3.2,$ JNB P3.2,$ SETB TR0 LOOP1: JNB TF0,LOOP1 CLR TF0 MOV B,#5 ACALL ADDONE JB P3.2,LOOP1 CLR TR0 ; MOV A,TL0 ; CLR C SUBB A,# LOOP4: SUBB A,#10 ADDONE: MOV A, 51H ADD A,B DA A ANL A,#0FH! MOV 51H,A JNZ LOOP2 MOV A,52H ADD A,#1 DA A ANL A,#0FH MOV 52H,A JNZ LOOP2 MOV A,53H ADD A,#1 DA A ANL A,#0FH ADD A,#1 DA A ANL A,#0FH MOV 54H,A JNZ LOOP2 MOV A,55H ADD A,#1 DA A ANL A,#0FH MOV 55H,A JNZ LOOP2 INC 56H LOOP2: RET

244 ; Gate 1 MOV TMOD,# B 6.3 MOV TH0,#0 MOV TL0,#0 6-8 JB P3.2,$ 80C51/ ; CLR C SETB TR0 ; LP3: MOV A,TL0 ; 100=64H JNB P3.2,$ 10ms ; SUBB A,#100 JB P3.2,$ 12MHz ; MOV TL0,A CLR TR0 ; MOV A,TH0 ; MOV 50H,#0 BCD 50H ; BCD SUBB A,#0 MOV 51H,#0 (50H ) MOV TH0,A MOV 52H,#0 LP1: CLR C BCD MOV A,TL0 ; 1000=3E8H SUBB A,#0E8H MOV TL0,A MOV A,TH0 SUBB A,#3 MOV TH0,A JC LP2 ; INC 50H ;1 AJMP LP1 LP2: MOV A,TL0 ; ADD A,#0E8H MOV TL0,A MOV A,TH0 ADDC A,#3 MOV TH0,A JC LP4 ; INC 51H ;1 AJMP LP3 LP4: MOV A,TL0 ; ADD A,#100 CLR C LP5: SUBB A,#10 ; 10=0AH JC LP6 ; INC 52H ;1 AJMP LP5 LP6: ADD A,#10 ; MOV 53H,A ; SJMP $

245

246

247

248

249

250 200H->DPTR 05H->R3 05H->R4 3FH->SP ((DPTR))->A BCD->ASCII DPTR+1 R4+2->R4 R3-1=0? END PUSH DPL R0=0 R1=0 40H=0 41H=0 DPTR 64H A 4 40H4 A=30H A=A+40H (A)->(23H) 64H A A4 4 A 4 41H4 A=30H A=A+41H (A)->(22H) DPL+R4->DPL (23H)->A A->((DPTR)) DPTR+1->DPTR (22H)->A A->((DPTR)) POP DPL

251 1 TMOD 2 1K 3 TR0,TR

252 ORG 0000H LJMP 0040H ORG 0040H MOV TMOD,#20H MOV TH1,#06H MOV TL1,#06H SETB TR1 LP1: JBC TF1,LP2 SJMP LP1 LP2: CPL P1.0 MOV TH1,#06H MOV TL1,#06H SJMP LP1 END

253 ;1K ORG 0000H ORG 001BH ; LJMP LP2 ; LJMP 0040H ORG 0040H MOV TMOD,#20H ;T12 MOV TH1,#06H ; MOV TL1,#06H MOV IE, #88H ;T1 MOV IP, #00H ;0 SETB TR1 ; 1 SJMP $ ; 1 ; LP2 LP2: CPL P1.0 RETI END

254 7.1 (1) (2)

255

256 ( 1 2 )

257 (baud rate) bit 120/ s = 1200bit / s = 1200bps 1bit t = = ms d 1200bps

258 (half doplex) 2(full doplex) 80C51 UART

259 m (modulator) (demodulator) 7.1.4

260 7.2 80C

261 7.2.2 SFR 度 而激芯现 ~~~~ 晶晶留 ~~~~ 度器 而激芯现 脚的 必器 而点类算 美状算 度 美的

262 7.2.2 SFR 2 SCON 98H 9FH 9EH 9DH 9CH 9BH 9AH 99H 98H SM0 SM1 SM2 REN TB8 RB8 TI RI 5)TI 4) 0 8 SM )TB8: 1 SM0 SM1 9 TI SM2 19 RB RI 1 SM2 SM0 SM1 TI 1RB8 1 RI 1 8 SBUFSM2 0 RB8 0 1 TB8 1 TB8 6) 0 RI 0 0 fosc/ SBUF ) RB RI 1 1SM2 1 TB8() fosc/64 fosc/32 RI RI ) 0SM2 0 REN REN 1 REN 0

263 7.2.2 SFR 3 PCON D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 SMOD GF1 GF0 PD IDL SMOD 1 SMOD 0

264 / OSC f osc SMOD f 64 2 ) ( X f T OSC = ) ( X f OSC SMOD SMOD T1 T1 2 T1 E8H F4H FAH FDH FDH FFH C/T T1 SMOD f osc (MHz) (bps)

265 MOV SBUF, #DATA TI=1 REN=1 RI=1 RXD(P3.0) TXD(P3.1) 74HC165

266 TXD RXD MOV SBUF, #DATA TI=1 REN=1 8 RI 1 CPU

267 D0

268 RB8 RICPU SBUF

269 P 9 SCON 98H TB8 PTB8 PP P /

270 C P1 3 4 P 5

271 ( 3) SM2=1 TB8=1 SM2=0 ( ) 1) SM2=0 2)TB=0 SM2=0 TB8=0 SM2=1

272 SBUF 99H 1) SBUF TI 2) SCONREN 1 RI

273 SCON 98H RI TI RB 8 TB 8 RE N SM 2 SM 1 SM 0 98 H 99 H 9A H 9B H 9C H 9D H 9E H 9F H 1 SM0 SM fosc/64 fosc/ fosc/ SM1 SM0

274 FH 9EH 9DH 9CH 9BH 9AH 99H 98H SM0 SM1 SM2 REN TB8 RB8 TI RI 2) SM SM2 19 RB8 0 RI 1 SM2 1RB8 1 RI 1 8 SBUFSM2 0 RB SBUF 1SM2 1 RI 1 0SM2 0

275 FH SM0 9EH SM1 9DH SM2 9CH REN 9BH TB8 9AH RB8 99H TI 98H 3) REN REN 1 REN 0 4)TI 0 8 TI 1 TI 5) RI 0 8 RI 1 RI RI

276 FH SM0 9EH SM1 6)TB8: 9 9DH SM2 9CH REN 9BH TB8 9AH RB8 99H TB8 1 TB8 0 7) RB TB8( ) TI 98H RI

277 PCON D 7 D 6 D 5 D 4 D 3 D 2 D 1 D 0 SMOD GF1 GF0 PD IDL SMOD 1 SMOD 0

278 SMOD 2 f osc 2 SMOD T1 32 T T = (256 X ) SMOD fosc 2 f OSC (256 X )

279 E8H F4H FAH FDH FDH FFH C/T T1 SMOD f osc (MHz) (bps)

280 4) SM SM2 19 RB8 0 RI 1 SM2 1RB8 1 RI 1 8 SBUFSM2 0 RB SBUF 1SM2 1 RI 1 0SM TXD MOV SBUF, #DATAD8 SCON TB8 TI 1 RXD REN=1 RI 1 D8SCON RI 1

281 R2

282

283

284 4) SM SM2 19 RB8 0 RI 1 SM2 1RB8 1 RI 1 8 SBUFSM2 0 RB SBUF 1SM2 1 RI 1 0SM TXD MOV SBUF, #DATAD8 SCON TB8 TI 1 RXD REN=1 RI 1 D8SCONRI 1

285 SM2 2( 3) SM2=1 TB8=1 SM2=0 ( ) 1) SM2=0 2)TB=0 SM2=0 TB8=0 SM2=1 RX D TX D 80C51 80C5 1 0# RX D TX D 80C5 1 1# RX D TX D 80C51 2# RX D TX D 0 REN=1 RI RI1

286

287 RAM 50H~63H MOV R7,#20 MOV R0,#50H SETB F0 RCV0:CLR P1.0 SETB P1.0 RCV1:MOV SCON,#00H JNB RI,$ CLR RI MOV A,SBUF INC R0 CPL F0 JB F0,RCV2 DEC R7 SJMP RCV1 RCV2:DJNZ R7,RCV0 RET

288 LED LED

289 LED LED MOV A,#55H ; CLR P1.0 SETB P1.0 MOV SCON,#00H ;0 MOV SBUF,A JNB TI,$ CLR TI SJMP $

290 CPU CPU

291 CPU 2 3

292 8.1.3

293 8.2 80C51

294 C51 80C51 1 0( INT 0 ) 1( INT1 ) TCON 8FH TF1 8DH TF0 8BH IE1 8AH IT1 89H IE0 88H IT0 ITi 0 ITi 1 IEi INTi i IEi 1i CPU 20TFi 1CPU 3 SCONTI RI / TI 1 RI 1CPU

295 SFR SFR 1(IE) 0A8H 80C51IE IECPU EX0 EX0 EX0 EX0 ET0 ET0 ET0 ET0 EX1 EX1 EX1 EX1 ET1 ET1 ET1 ET1 ES ES ES ES EA EA EA EA A8H A8H A8H A8H A9H A9H A9H A9H AAH AAH AAH AAH ABH ABH ABH ABH ACH ACH ACH ACH AFH AFH AFH AFH EA CPU EA 1 CPU ES ES 1 ETi TiETi 1 Ti EXi iexi 1 INTi

296 8.2.2 SFR 2 (IP) (0B8H) BCH BBH BAH B9H B8H PS PT1 PX1 PT0 PX0 PS PS 1 PTi Ti PTi 1Ti PXi i PXi 1 i

297 1 IP 00H 2 80C51 IP 3 INT 0 T0 1 INT T1 RI/TI 4 5 RETI

298 8.3 1) 2) 3)

299 )EA 1 2) 3) 1 4) 5)

300 )CPU 2) 3)RETIIE IP CPU

301 8.3 3 CPU 1TI/RI 2 3 PC 4 PC H T0 000BH l 0013H T1 001BH 0023H

302 ) 1 LCALL 2 3 2) )RETIIE IP )

303 ) 2) 3) RETI 4)

304 ;6-5 ORG 0000H 8.4 AJMP START ORG 000BH LJMP T0INTR ORG 0030H START: MOV TMOD,# B MOV TH0,#231 MOV TL0,#231 SETB TR0 SETB ET0 SETB EA MOV R0,#8 SETB P1.2 MAIN: AJMP MAIN ORG 1000H T0INTR: DJNZ R0,LOOP3 SETB P1.2 MOV R0,#8 AJMP LOOP4 LOOP3: CLR P1.2 LOOP4: RETI ;6-6 ORG 0000H AJMP BEGIN ORG 000BH AJMP TOACK ORG 0030H BEGIN: MOV TMOD,# B MOV TH0,#6 MOV TL0,#6 SETB TR0 SETB ET0 SETB EA MOV R0,#4 AJMP $ TOACK: CPL P1.1 LOOP2: DJNZ R0,T0END CPL P1.0 MOV R0,#4 T0END: RETI

305 ; A 00H FFH BCD ORG 0000H LJMP 0040H ORG 0040H MOV A,#0FFH MOV R0,#00H MOV R1,#00H MOV R2,#00H CLR C LP1: SUBB A,#64H JC LP2 INC R0 CLR C AJMP LP1 LP2: ADD A,#64H CLR C LP3: SUBB A,#0AH JC LP4 INC R1 CLR C AJMP LP3 LP4: ADD A,#0AH MOV R2,A MOV 30H,R0 MOV 31H,R1 MOV 32H,R2 END

306 ; A BCD ORG 0000H LJMP 0040H ORG 0040H MOV A,#10H MOV R0,#30H XCHD A,@R0 MOV R1,30H SWAP A XCHD A,@R0 MOV A,30H MOV B,#0AH MUL AB ADD A,R1 END

307 ;24MHZ T0 P ORG 0000H LJMP 0040H ORG 0BH LJMP INTT0 ORG 0040H MOV R0,#08H MOV TMOD,#02H MOV TH0,#9CH MOV TL0,#9CH SETB EA SETB ET0 SETB TR0 AJMP $ ORG 0100H INTT0: DJNZ R0,LP1 SETB P1.2 MOV R0,#08H RETI LP1: CLR P1.2 RETI END

308 ;12MHZ T0 P1.0 P1.1 2ms 500 ORG 0000H LJMP 0040H ORG 0BH LJMP INTT0 1 ORG 0040H MOV R0,#04H MOV TMOD,#01H ; MOV TH0,#0FEH MOV TL0,#0CH SETB EA SETB ET0 SETB TR0 AJMP $ ORG 0100H INTT0: DJNZ R0,LP1 CPL P1.1 MOV R0,#04H RETI LP1: CPL P1.0 RETI END

309 ;24M 10ms 50H ORG 0000H LJMP 0040H ORG 0040H MOV TMOD,# B MOV TH0,#0 MOV TL0,#0 JB P3.2,$ ; SETB TR0 ; JNB P3.2,$ ; JB P3.2,$ ; CLR TR0 ; LP1: MOV TL0,A SUBB A,#64H MOV TL0,A SUBB A,#00H MOV TH0,A INC R0 JNC LP1 MOV TL0,A ADD A,#64H CLR C LP2: SUBB A,#0AH JC LP3 INC R1 CLR C LP3: ADD A,#0AH MOV R0,A END

310 BCD 64H 16 30H

311 R0=0 R1=0 40H=0 41H=0 64H A 64H A A 4 40H4 A=30H A=A+40H (A)->(23H) A4 4 A 4 41H4 A=30H A=A+41H (A)->(22H)

312 200H~204H5 BCD ASCII 205H

313 200H->DPTR 05H->R3 05H->R4 3FH->SP ((DPTR))->A BCD->ASCII DPTR+1 R4+2->R4 R3-1=0? END PUSH DPL R0=0 R1=0 40H=0 41H=0 DPTR 64H A 4 40H4 A=30H A=A+40H (A)->(23H) 64H A A4 4 A 4 41H4 A=30H A=A+41H (A)->(22H) DPL+R4->DPL (23H)->A A->((DPTR)) DPTR+1->DPTR (22H)->A A->((DPTR)) POP DPL

314 1 2 3 I O 4

315 = + +

316 ) -> 2)

317 9.1.1 IC H-1FFFH 1 () 2000H-3FFFH IC IC H-5FFFH IC IC H-7FFFH 8000H-9FFFH IC IC IC A000H-BFFFH C000H-DFFFH E000H-FFFFH

318

319 9.1.2 AB 8 P0 P2 DBP0 CB OE 80C51 PSEN ROM OE 80C51 WE 80C51 RD WR GCPU ALE CS RAM RAM

320 EA/VP 31 X1 19 X2 18 RESET 9 RD 17 WR 16 INT0 12 INT1 13 T0 14 T1 15 P10 1 P11 2 P12 3 P13 4 P14 5 P15 6 P16 7 P17 8 P00 39 P01 38 P02 37 P03 36 P04 35 P05 34 P06 33 P07 32 P20 21 P21 22 P22 23 P23 24 P24 25 P25 26 P26 27 P27 28 PSEN 29 ALE/P 30 TXD 11 RXD 10 IC D0 3 Q0 2 D1 4 Q1 5 D2 7 Q2 6 D3 8 Q3 9 D4 13 Q4 12 D5 14 Q5 15 D6 17 Q6 16 D7 18 Q7 19 OE 1 LE 11 IC2 74LS373 GND D0 D1 D2 D3 D4 D5 D6 D7 A0 A1 A2 A3 A4 A5 A6 A7 A8 A9 A10 A11 A12 A13 A14 A15 PSEN WR RD 12M C2 30P C1 30P C3 10u R1 10K GND VCC RST RST X1 X2 X1 X2 VCC

321 C51 1)64KB 0000H 0FFFFH PSEN 2) MOVC 3)ROM 2 1)ROM EPROM: 2732(4KB 8) 2764(8KB 8) 27128(16KB 8) 27256(32KB 8) EEPROM: 28C16 28C A FLASH: 28F256 28F512 AT HC HC274

322

323

324 C51 1)64KB 0000H 0FFFFH WR RD 2) MOVX Ri DPTR 3 RAM 2 1)RAM HC HC274

325 MSM

326 9.1.4

327 EA/VP 31 X1 19 X2 18 RESET 9 RD 17 WR 16 INT0 12 INT1 13 T0 14 T1 15 P10 1 P11 2 P12 3 P13 4 P14 5 P15 6 P16 7 P17 8 P00 39 P01 38 P02 37 P03 36 P04 35 P05 34 P06 33 P07 32 P20 21 P21 22 P22 23 P23 24 P24 25 P25 26 P26 27 P27 28 PSEN 29 ALE/P 30 TXD 11 RXD 10 U? 8051 D0 3 Q0 2 D1 4 Q1 5 D2 7 Q2 6 D3 8 Q3 9 D4 13 Q4 12 D5 14 Q5 15 D6 17 Q6 16 D7 18 Q7 19 OE 1 LE 11 U? 74ALS373 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CE 20 OE 22 PGM 27 VPP 1 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 U? 2764 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CE 20 OE 22 PGM 27 VPP 1 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 U? 2764 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CS1 20 CS2 26 WE 27 OE 22 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 U? 6264 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CS1 20 CS2 26 WE 27 OE 22 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 U? 6264 VCC VCC

328 EA/VP 31 X1 19 X2 18 RESET 9 RD 17 WR 16 INT0 12 INT1 13 T0 14 T1 15 P10 1 P11 2 P12 3 P13 4 P14 5 P15 6 P16 7 P17 8 P00 39 P01 38 P02 37 P03 36 P04 35 P05 34 P06 33 P07 32 P20 21 P21 22 P22 23 P23 24 P24 25 P25 26 P26 27 P27 28 PSEN 29 ALE/P 30 TXD 11 RXD 10 U? 8051 D0 3 Q0 2 D1 4 Q1 5 D2 7 Q2 6 D3 8 Q3 9 D4 13 Q4 12 D5 14 Q5 15 D6 17 Q6 16 D7 18 Q7 19 OE 1 LE 11 U? 74S373 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CE 20 OE 22 PGM 27 VPP 1 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 U? 2764 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CE 20 OE 22 PGM 27 VPP 1 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 U? 2764 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CS1 20 CS2 26 WE 27 OE 22 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 U? 6264 A0 10 A1 9 A2 8 A3 7 A4 6 A5 5 A6 4 A7 3 A8 25 A9 24 A10 21 A11 23 A12 2 CS1 20 CS2 26 WE 27 OE 22 D0 11 D1 12 D2 13 D3 15 D4 16 D5 17 D6 18 D7 19 U? 6264 AD07 AD06 AD05 AD04 AD03 AD02 AD01 AD00 A27 A26 A25 A24 A23 A22 A21 A20 A07 A06 A05 A04 A03 A02 A01 A00 AD07 AD06 AD05 AD04 AD03 AD02 AD01 AD00 A07 A06 A05 A04 A03 A02 A01 A00 A24 A23 A22 A21 A20 A07 A06 A05 A04 A03 A02 A01 A00 A24 A23 A22 A21 A20 A07 A06 A05 A04 A03 A02 A01 A00 A24 A23 A22 A21 A20 A07 A06 A05 A04 A03 A02 A01 A00 A24 A23 A22 A21 A20 AD07 AD06 AD05 AD04 AD03 AD02 AD01 AD00 AD07 AD06 AD05 AD04 AD03 AD02 AD01 AD00 AD07 AD06 AD05 AD04 AD03 AD02 AD01 AD00 AD07 AD06 AD05 AD04 AD03 AD02 AD01 AD00 VCC VCC A27 A26 A27 A26 RD WR RD WR RD WR PSEN PSEN Protel 99 SE

329 EEPROMROM RAM 2

330 9.2 I/O I/O I/O I/O 1 I/O

331

332