9.1 -9.2 A/D9.3

9.1 -9.1.1 ()()

1. 9-1b510ms

9-1 ab89C51

RS CPU

2.

3. 4.

1) DASII 2)

1 9-2 I/O

9-2 89C51

P0FP7FJMP PROM0PROM7

(I0P1)START: MOV A#0FFH P11 MOV P1A MOV AP1 JNB ACC.0P0F 0P0F JNB ACC.1P1F 1P1F JNB ACC.2P2F 2P2F JNB ACC.3P3F 3P3F JNB ACC.4P4F 4P3F

JNB ACC.5P5F 5P5F JNB ACC.6P6F 6P6F JNB ACC.7P7F 7P7F JMP START P0F: JMP PROM0 P7F: JMP PROM7

PROM0 0 . JMP START 0PROM1 1 . JMP START PROM7 7 . JMP START 07

2 I/O9-3 ()()NMNM

9-3

() 441 I/O()()()()()00H()()A()()1

2 110

3 : 01 () = *+ () = +

(10ms)CPU (INT0INT1)CPU CPU

1 P2339-6 44 P2359-7 0FEH R0R2

DECODEA

AKEY: MOV P1#0F0H ; MOV R7#0FFH ;KEY1DjNZ R7KEY1 ; MOV AP1 ;P1 ANL A#0F0H ; CPL A ; JZ EKEY ; LCALL DEL20ms 20ms SKEY: MOV A, #00H ; MOV R0, A ;0 MOV R1, A ;0 MOV R3,#0FEH ;

SKEY2: MOV A,R3 MOV P1,A ;41 NOP NOP NOP ;P1 MOV A,P1 ; MOV R1,A ; ANL A,#0F0H ; CPL A ;S123 JNZ SKEY3 ; INC R0 ;1

SETB C MOV A, R3 ;R3 RLC A MOV R3, A ; R3 MOV A, R0 CJNE A, #04H,SKEY1 ;4 EKEY: RET

SKEY3: MOV AR1 JNB ACC.4,SKEY5 JNB ACC.5,SKEY6 JNB ACC.6,SKEY7 JNB ACC.7,SKEY8 AJMP EKEYSKEY5: MOV A, #00H MOV R2, A ;0 AJMP DKEYSKEY6: MOV A, #01H MOV R2, A ;1 AJMP DKEY

SKEY7: MOV A, #02H MOV R2, A ;2 AJMP DKEYSKEY8: MOV A, #03H MOV R2, A ;3 AJMP DKEYDKEY: MOV A, R0 ACALL DECODE AJMP EKEY

DECODE: MOV A, R0 ; MOV B,#04H ; MUL AB ;* ADD A, R2 ;*+ RET

2 CPU 9-689C51P144P14P14P1.4P1.7

P1.0P1.3P1.4P1.7INT0/INTlCPUCPU

9-6 9-7 89C51

012EF 161610H1FHAAABBBPPP

ORG 8000HKEYADRMOV ABUFF ;A CJNE A#0FHKYARD1 AJMP DIGPRO ;FKYARD1JC DIGPRO ;FKEYTBLMOV DPTR#JMPTBL ; CLR C ; SUBB A#10H ;10HFH16 RL A ;(A)2,(A)02 ; 4 JMP @A+DPTR ;

JMPTBL: AJMP AAA AJMP BBB AJMP CCC AJMP DDD AJMP EEE AJMP FFF AJMP GGG 216 AJMP HHH AJMP III (A)=0,2,4,6, .. AJMP JJJ AAA,BBB,CCC, DDD,PPP AJMP KKK AJMP LLL AJMP MMM AJMP NNN AJMP OOO AJMP PPP

9.1.2 LEDLEDLCDCRT

LEDLED8(K0)(K0)

9-8 LED

9-1 LED 8LED0F(adp

LED LED 1LED ()7abc78abcdefgdp

LED9-9(K0)(K0)5v(adp)8 I/O

2LED LED8I/O()K0I/O9-106LED 6IO6LEDLED

9-10 6 LED

I/O()I/O(LED)

9-11 6

P0P166754527406)8155 PBLEDPBLED7407OCLED1ms1020ms6LED1. LED8155

9-12 6LED

2 . 1 LED2

3DISDISMOV R0#7EH R0 MOV R2#01H MOV AR2 MOV DPTR#TAB DPTRLP0MOV P1A MOV A@R0 MOVC A@A+DPTR MOV P0A

ACALL D1MS DEC R0 1 MOV AR2 JB ACC.5LP1 RL A MOV R2A AJMP LP0LP1RET

TAB DB 3FH06H5BH4FH66H6DH DB 7DH07H7FH6FH77H7CH DB 39H5EH79H71H40H00HD1MSMOV R7#02H 1msDL MOV R6#0FFHDL1 DJNZ R6DL1 DJNZ R7DL RET

9.1.3/LED8155 18155 I/O 815512PC64

LED2 6LED8155PBPAPAPC0PC2

9-14 8155

KD1: MOV A, #03H ;8155,PA,PB ;PC MOV DPTR, #7F00H MOVX @DPTR, AKEY1: ACALL KS1 JNZ LK1 ACALL DIS ;6ms AJMP KEY1 LK1 ACALL DIS ACALL DIS ;12ms ACALL KS1

JNZ LK2 ACALL DIS ;6ms AJMP KEY1 LK2: MOV R2, #0FEH MOV R4, #00H LK4: MOV DPTR, #7F01H MOV A, R2 MOVX @DPTR, A INC DPTR INC DPTR MOVX A, @DPTR

JB ACC.0, LONE MOV A, #00H AJMP LKP LONE: JB ACC.1, LTWO MOV A, #08H AJMP LKP LTWO: JB ACC.2, LTHR MOV A, #10H AJMP LKP LTHR: JB ACC.3, NEXT MOV A, #18H

LKP: ADD A, R4 PUSH ACC LK3: ACALL DIS ACALL KS1 JNZ LK3 POP ACC RET NEXT: INC R4 MOV A, R2 JNB ACC.7, KND RL A MOV R2, A

AJMP LK4KND: AJMP KEY1KS1: MOV DPTR, #7F01H MOV A, #00H MOVX @DPTR, A INC DPTR INC DPTR MOVX A, @DPTR CPL A ANL A, #0FH RET

9.1.4 /LED 89C5l0RXD(P3.0)()TXD(P3.1)74LSl64/LED

P1.2=1 0fosc/12fosc8031fosc6MHz500kb/s2us

74LSl648mACPUCPULED01

KEY: MOV A, #00H ;0 MOV SBUF, AKL0: JNB TI, KL0 ;8 CLR TI ;KL1: JNB P1.0, PK1 ;1 JB P1.1, KL1 ;2PK1: ACALL D10MS ;,10ms, JNB P1.0, PK2 ; JB P1.1, KL1PK2: MOV R7, #08H ;

MOV R6, #0FEH ;0 MOV R3, #00H ;PL5: MOV A, R6 ; MOV SUBF, AKL2: JNB TI, KL2 CLR TI JNB P1.0, PK4 ;1 JNB P1.1, PK5 ;2 MOV A, R6 ; RL A

MOV R6,A INC R3 ;1 DJNZ R7,PL5 ;8 RET ;PK5: MOV R4,#08H ;2R408H AJMP PK3 ;PK4: MOV R4,#00H ;1R400HPK3: MOV A,#00H ; MOV SBUF,AKL3: JNB TI,KL3 CLR TI

KL4: JNB P1.0, KL4 JNB P1.1, KL4 MOV A, R4 ; ADD A, R3 SUBB A, #0AH ; JNC KL6 ; MOV DPTR, #TABL ;DPTR ADD A, #0AH ; MOVC A, @A+DPTR ; MOV R0, 60H ;

MOV @R0, A ; INC R0 ;1 CJNE R0, #60H, KD ; MOV 60H, #58H ; SJMP KD1KD: MOV 60H, R0KD1: ACALL LED ; RETKL6: MOV B, #03H ; MUL AB

MOV DPTR, KTAB ;DPTR JMP @A+DPTR ;KTAB: LJMP K1 ;K1,K3 LJMP K3 ; TABL: DB C0H, F9H, A4H, B0H ;09 DB 99H, 92H, 82H, F8H DB 80H, 90HLED: SETB P1.2 ; MOV R7, #08H ;R7

MOV R0, #58H ; LED1: MOV A, @R0 ; MOV SBUF, ALED2: JNB TI, LED2 CLR TI INC R0 ; DJNZ R7, LED1 ; CLR P1.2 ; RET

9.2 A/D A/D A/DADMCS-51AD

AD 1 A/DBCD 2 A/DA/DA/D()

3 A/DA/DA/D 4 A/DA/D

9.2.1 AD A/DA/D

9-16 AD

(D7)10D/AUNUxUxUND7lUxUND70D61DAUxD010EOC88

200500ns D/A 0.01% ADADC 0809AD574A

ADC 0809A/D ADC0809CMOS8A/D2888A/D ADC0809

9-17 ADC0809

IN0IN78D0D78STARTA/DALE

OE CLK640kHz EOCEOCEOCA/D VREF(+)VREF(-)A/D VccCMOS+5V+15V

89-281 ADC0809100sCPU

9-2 8

ADC08099-18ALE1(ADDAADDBADDCALE0STARTADC0809A/DEOC01OE0809

9-18 ADC0809

89C51ADC 0809 ADC 080989C51 89C51ADC 0809

9-19 89C51ADC 080989C51 P2.7

ADC 0809ADDAADDBADDCALESTARTA/DMOVX DPTRAWRALESTARTA/DA/DEOCMOVX ADPTRRDOE8CPU

9-18A0HA7HRAM ORG 0000H AJMP MAIN ORG 0013H AJMP INT1MAIN: MOV R0#0A0H MOV R2#08H MOV DPTR#7FF8H P2.70IN0

SETB IT1 SETB EX1 SETB EA MOVX @DPTRA A DHERESJMP HERE

INT1: MOVX A@DPTR MOVX @R0A INC R0 INC DPTR DJNZ R2DONE RETI DONE: MOVX @DPTRA RETI

9-2830HRAM

MAINMOV DPTR#0FEF8H ;P2.00 ; IN0 MOV R1#30H ; MOV R7#08H ;READMOVX DPTRA ;AD

HEREJB P3.3HERE M0VX ADPTR M0VX R1A INC R1 INC DPTR DJNZ R7READ ..

9.2.2. AD A/D Vi 0VT1Vi( )Vi

ViVRVRT1()T2 V = T2 / T1VR

9-20 AD

T2(b)ViT1A/DVi A/D A/DMC14433(3 ),ICL 7135(4)ICL7l09(12)ICL7104(16)

MCl4433 MCl4433 ADAD MCl4433BCD310s

1/1999(11 ) 1.999V1999mV 310s 50150kHz 100M1.

2V200mV( 1999V1999mV)BCD 4.5V8V9V16V8mw5V

9-21 MCl44339-22 MCl44332.

9-23 MC14433

MCl4433VAGVxVREF( )VR(+2V+200mv)VxR1R1C1C1 (a)2VC10.1uFR1470k (b)200mVC10.1uFR127k

C01C02C00.1P DUDUEOCA/D EOCA/DEOC1/2 OR Vx VR

DS1DS4DS1DS41828-38 Q0Q3BCDQ0Q3DS2DS4BCD09DS1Q0Q301

9-3 DS1Q0Q3

Q3Q00Q30lQ310Q3Q01Q30Q311.999V1.999V179mVQ2Q21Q20

89C51MCl4433 MCl4433A/DBCDQ0Q3DSlDS4MCS-51I/OI/O 1. 9-24MCl443389C51MC14433EOCDUMCl4433EOC89C51MCl4433BCD

9-24 MCl44338031C02C01CLK0CLK1R1/C1R15G140389C51

2. A/DA/DRAM2CH2DH2CH2DH: INTSETB IT1 INT1 MOV IE#84H CPUINT1

1INT1MOV AP1 A/DA JNB ACC.4INT1 DS1 JB ACC.0ERR ERR JB ACC.2L1 SETB 67H 1 AJMP L2

L1CLR 67H 0L2JB ACC.3L3 01 SETB 64H 1 AJMP L4L3CLR 64H 0L4MOV AP1 JNB ACC.5L4 DS2 MOV R02CH XCHD A@R0 2CH4L5MOV AP1 JNB ACC.6L5 DS3

SWAP A 4 INC R0 2DH MOV @R0A 2DH4L6 MOV AP1 JNB ACC.7L6 DS4 XCHD A@R0 2DH4 RETI ERRSETB 10H RETI

9.2.3 A/DTLC2543

TLC2543TI12A/DI/O

TLC2543 112A/D81216 210us 311 43 5/66kps; 61LSBmax

789/10/1112

1234567891011121314151617181920AIN0AIN1AIN2AIN3AIN4AIN5AIN6AIN7GNDAIN8VccEOCI/O CLOCKDINDOUTCSREF+REF-AIN9AIN109-25 TLC2543 TLC2543 1

2

TLC2543 1CS

2CS9-28 CS

TLC2543 1

94

TLC254389C51SPI 1

2 1TLC254389C518TLC254389C5118AIN01TLC2543:MOV R4, #04H; ,AIN0,8 MOV A, R4 CLR R1.3; CSTLC2543 MSB: MOV R5, #08H; 8

LOOP:MOVP1, #04H; P1.2 MOVC, P1.2; TLC2543 A/D8 ; C CLRA; MOVP1.1, C; ACC ; DINTLC2543 SETBP1.0; NOP CLRP1.0 DJNZR5, LOOP MOVR2, A; A/DR2 RET

2TLC254389C5112 TLC2543AIN01089C51R2 89C5112MHz12 00H

ORG 0100HMOV P1,#04H ;P1.2MOV R6,#0AH ;10MOV R0,#2FH ;CLR P1.0 ;I/OSETB P1.3 ;CSACALL TLC2543 ;SJMP $

TLC2543:MOVA,#00H; ;IN0,12 CLRP1.3;CS MOVR5,#0CH;LOOP: MOVP1,#04H;P1.2MOVC,P1.2; RLCA;A ; ;CMOVP1.1,C;2543SETB P1.0;I/ONOPCLRP1.0;I/O

CJNE R5,#04,LOP1 ; MOV @R0,A ;8RAM INC R0 CLR ALOP1: DJNZ R5,LOOP ;4 ANL A,#0F MOV @R0,A RET

3TLC254389C5116 TLC254389C51MSByteR2LSByteR3ORG 100HSTART:MOV SP,#50H;MOV P1,#04H;P1CLR P1.0;I/O CLOCKSETB P1.3;CSMOV A,#0FFHACALL TLC2543ACALL STORELJMP START

TLC2543:MOV R4,#0CH ;R4 ;AIN0,16 MOV A,R4 ;ADW0: CLR P1.3 ;CS JB ACC.1,LSB ;D11 ;MSB: MOV R5,#08 ;LOOP1 MOV C,P1.2 ;C RLC A ;A ;C MOV P1.1,C ; SETB P1.0 ;I/O CLOCK

NOPCLR P1.0;I/O CLOCKDJNZ R5,LOOP1;8MOV R2,A;R2MOV A,R4;AJB ACC.1,RETURN;D11 ; LSB:MOV R5,#08 ;LOOP2:MOV C,P1.2RLC AMOV P1.1,CSETB P1.0

NOPCLR P1.0DJNZ R5,LOOP2MOV R3,A;R3MOV A,R4JB ACC.1,MSB;D11;RETURN:RETSTORE:MOV A,R4;AANL A,#0F0H ;SWP A

MOVB,#02HMULABADDA,#30HMOVR1,AMOVA,R2MOV@R1,A; RAM;30H,32HINCR1MOVA,R3MOV@R1,A; RAM;31H,33HRETEND

9.3 , 1. 2. 3.

9.3.1

. 1

2 1 SSR

2) 89C51

1

289C51

9.3.2 D/A D/ACPUD/AD/AD/A

D/A D/AD/AR-2R TD/AD/A

1D/A D/A

4D/A8421Rf/8RRf/4RRf/2RRf/R1VR

9-36 D/AI2I3I1VR/ RVR/ RVR/ RVR/ 2RVR/ 4RVR/ 8R

2R-2R TD/A D/AR-2R T 44R-2R8 d3d2dld0

9-37 TD/AI1I2I11I12I13I14

D/AD/A D/ARfVRD/A

D/AD/A100msD/AD/A D/ACPU

9-38 D/A

CPUD/A74LS27374LS374Intel-8255A

3DA 1 nD/A1/2n

2 D/A 3 D/ALSB/2()

4 D/AD/A/(LSB)LSB/2 5 D/A

D/ADAC0832 DAC 08328D/A9-39 1. DAC0832 8 D0D7 LE1LE2

9-39 DAC 0832LE1VCCDGND

2. DI0DI7TTL90nsILE CSWR1LE1ILECSWR1 XFERWR2DACDACLE2XFERWR2

Iout1: 1Iout1 Iout2: Iout1 Rfb Vcc( -5V+5V) Vref(-10V-10V) AGND DGND

3. DAC0832 1) 8 2) 1s 3) 4) 5) (+5v+15V) 6) 200mW 7) TTL

4. DAC083289C51 DAC 08329-40

DAC0832(1)9-41 DAC0832

DAC0832 CS()CSWRlD/A

(2) 9-42 8031083289C51

D/AD/ADAC083289C51 9-41ILE+5vCSXFERP2.7DAC2FFFHWR1WR289C51WRCPU0832DAC0832

DAC08329-43 DAC0832

9-3STARTMOV DPTR#2FFFH ;DAC 0832 STEPlMOV A#00H ;00H STEP2MOVX @DPTRA ;DA INC A ;A1 CJNE A#dataSTEP2 ; AJMP STEPl ;

9-4STARTMOV DPTR#2FFFH ;DAC 0832 STEPPMOV A#dataH ; MOVX DPTRA ;DA ACALL DELH ; MOV A#dataL ; MOVX DPTRA ;DA ACALL DELL ; SJMP STEP ;

9-5 STARTMOV DPTR#2FFFH ;DAC 0832 STEP1MOV A#00H STEP2MOVX DPTRA ;DA INC A ;A1 CJNE A#dataSTEP2 ; STEP3:DEC A ;A1 MOVX DPTRA ;DA CJNE A#01HSTEP3 ;01H AJMP STEP1 ;

9-6STARTMOV DPTR#2FFFH ;DAC 0802 STEPMOV R6#20H ; MOV R4#05H ; MOV A#00H ;A L00P1MOVX DPTRA ;D/A ACALL DELAY ; ADD AR6 ; DJNZ R4L00P1 ; AJMP STEP

(3) D/AD/A D/ACPUD/ACPUD/AD/ADAC

9-44 89C51083289C51

89C51MOV DPTR#08FFFHMOV A#XdataMOVX @DPTRA ;Xdata1#0832MOV DPTR#0A7FFHMOV A#Ydata MOVX @DPTRA ;Ydata2#0832MOV DPTR#2FFFHMOVX @DPTRA ;1#2# ;DACD/A ;XY

D/A - AD7520 AD752010D/ACMOST16D/A1. AD7520

9-39 D1D10D1Dl0 Vcc(515v VR(-10V+10V) RF GND Iout1Iout2

9-45 AD7520

89C51AD 7520AD752010I/O74LS3778D0BFFFH74LS74D7FFFH80318102. AD752089C51

9-46 8031AD 7520 89C51

MOV DPTR#7FFFH ;74LS74 MOV A#dataH ;2A MOVX DPTRA ;274LS74 MOV DPTR#0BFFFH ;74LS377 MOV A#dataL ; 8A MOVX DPTRA ;874LS377 ; 274LS74

9.3.3 D/ATLC5615 TLC56153/TLC5615

TLC5615 110CMOS 25V 33SPI 42 5 612.5s 7DAC 0 81.75mw

TLC5615 1TLC5615

116122TLC561512102xx,xxMSBLSB

16MSB4

210DAC3DAC2

2

9-5 I/O

TLC5615

TLC5615/

TLC561589C51

2 89C5112R0R1

CLR P3.0 ;MOV R2#4 ;4MOV A,R0 ;4SWAP A ;A4 ;LCALL WR-data ;DIN4MOV R2,#8 ;8MOV A,R1 ;8LCALL WR-data ;DIN8CLR P3.1 ;SETB P3.0 ;12RET

WR-dataNOP;LOOP: CLR P3.1; RLC A;CY MOV P3.2,C;TLC5615 SETB P3.1; DJNZ R2,LOOP; RET

SDSFSDGFDGBFDGHFGFDHGFDH