1dac0832中文资料

1D/ADAC08328(1us)(10~20(10~20))DAC083221.2088DAC8D/AVREFIOUT2RFBAGNDVCCDGNDDI7~DI0CSWR1WR2XFERILELELEIOUT1&&&RFB3Vcc,+5V+15VVREF,-10V+10VRFB,AGNDDGND8DAC8D/AVREFIOUT2RFBAGNDVCCDGNDDI7~DI0LEIOUT1LECSWR1WR2XFERILE&&&8RFB4DI7~DI0:DI0DI78DAC8D/AVREFIOUT2RFBAGNDVCCDGNDDI7~DI0LEIOUT1LECSWR1WR2XFERILE&&&8RFB58DAC8D/AVREFIOUT2RFBAGNDVCCDGNDDI7~DI0LEIOUT1LECSWR1WR2XFERILE&&&8RFB0011ILE,CS,WR11LE1ILECSWR1,LE=1WR1,LE=06LE2XFERWR22•XFERWR2,LE2=1DAC•WR1,LE=0DACD/AD/AVREF8DAC8D/AIOUT2RFBAGNDVCCDGNDDI7~DI0LEIOUT1LECSWR1WR2XFERILE&&&8RFB00178DAC8D/AVREFIOUT2RFBAGNDVCCDGNDDI7~DI0LEIOUT1LECSWR1WR2XFERILE&&&8IOUT11”1”,”0”,0IOUT22IOUT1+IOUT2=255VREF256RFBRFB82.DAC08321)2)91):D/AD/A10+-VoportPCIOWA0~A9D0~D7+5VCSDAC0832DI0~DI7IOUT1IOUT2RFBXFERWR2WR1ILE:DAC11PCI/OA15~A0CLKIOWT4T1T2T3TwD7~D0portMOVAL,data;MOVDX,portOUTDX,ALD/AIOUT2DI7~DI0LEIOUT1LECSWR1ILE&WR2XFER&RFB-+VoIOWA9~A0D7~D0+5VPCportDAC12portPCIOWA0~A9D0~D7+5VXFERDAC0832DI0~DI7+-VoIOUT1IOUT2RFBCSWR1WR2ILE:DAC13PCI/OA15~A0CLKIOWT4T1T2T3TwD7~D0portMOVAL,data;MOVDX,portOUTDX,ALIOUT2DI7~DI0LECSWR1ILE&VoD7~D0+5VPCportWR2IOWA9~A0XFERD/ALEIOUT1RFB-+DAC&142):DAC0832PCWR1IOWDI0~DI7D0~D7+5VILE+-VoIOUT1IOUT2RFBWR2CSA0~A9XFERVREF-5Vport1port2DGNDAGND15MOVAL,data;MOVDXport1OUTDX,AL;MOVDX,port2OUTDX,AL;IOUT2DI7~DI0LECSWR1ILE&VoD7~D0+5VPCport2WR2IOWA9~A0XFERD/ALEIOUT1RFB-+DAC&port116port1XFERWR2CSWR1ILE+D/ADI7~DI0Vo1port2XFERWR2CSWR1ILE+D/ADI7~DI0Vo2port3DAC0832DAC0832D7~D0A9~A0IOWPC+5v+5v17codeSEGMENTASSUMECS:code,DS:codedatav1DB11h,12h,13h,14h,15h,16h,17h,18h,19h,1Ahdatav2DB21h,22h,23h,24h,25h,26h,27h,28h,29h,2Ahstart:MOVAX,codeMOVDS,AXLEASI,data_v1LEABX,data_v2MOVCX,10next:MOVAL,[SI];V1OUTport1,AL;0832MOVAL,[BX];V2OUTport2,AL;0832OUTport3,AL;0832INCSIINCBXLOOPnextMOVAH,4CHINT21HcodeENDSENDstartdatav1datav2183.(10CDHVoDAC0832PCWR1IOWDI0~DI7D0~D7+5VILE+-VoIOUT1IOUT2RFBWR2DGNDCSA0~A9XFERVREF-5Vport1port2MOVAL,0CDHMOVDXport1OUTDX,ALMOVDX,port2OUTDX,AL190FFH=255IOUT1=Vo=-IOUT1RFB=-FBREF256R255V256255VREF0CDH=205VREF=-5VVo=-=4V256205VREFWR1IOWDI0~DI7D0~D7+5VILE+-VoIOUT1IOUT2RFBWR2DGNDCSA0~A9XFERVREF-5Vport1port220VoVREFWR1IOWDI0~DI7D0~D7+5VILE+-VoIOUT1IOUT2RFBWR2DGNDCSA0~A9XFERVREF-5Vport1port24VVREF-10V,Vo=8V-10V8V10VVREF10V,Vo=-8V-8V212tVo4V0V22codeSEGMENTASSUMECS:codestart:MOVCX,8000H;MOVAL,0;next:MOVDX,port1;OUTDX,ALMOVDX,port2;OUTDX,ALCALLdelay;INCAL;CMPAL,0CEH;JNZnext;MOVAL,0;LOOPnext;MOVAH,4CH;DOSINT21HdelaycodeENDSENDstartVo4V0VCDH234V0VVottVo4V0V24/A/D()A/D()A/DA/D25A/D0000010100110000010100111v2v3v4v5v6v7vA/D26,27CC=1C=0‰A/D8D/A88D7-D08D/AA-+CLKEOCSCViV0CLRD/AD0~D7S=08“0”S=128•SS8“0”S•8D/A00H0VVoViVoC=1,0ViVoC=1VoVi,C=0•D7-D0ViA/DCA/D29...A/DViV0t0SEOCA/D30‰A/D•A/D•A/DA1A231A1-+VXVNS1A2-+S2CV01............A/DA/D0T1T2A/DA/DV01t0t1t2t3V01mA/D32•A/D••“0”S2A1Vo1=0V•S1VXS2Vx),Vo1A21“0”A/D••S1VN•VN•Vo11Vo1=0A/D33‰T1:V01=-=-=t=t2v01m=T1RC1∫21)(ttdtVx111TRCT∫21)(ttdtVxVx∫−21)(1TTdtVxTRC1Vx34‰:T2:v01=v01m+[-Ndt]•t=t3v01=00=v01m-Ndt=NT2,T2=T1/vN•fNTT1=N1/f,T2=N2/f.N1VNN2=N1N•N2,N2A/D∫321ttVRC∫321ttVRCVxRCT1RCVVxVVxVx35‰A/D•A/D•8D/A.•D/AVoVXA/D36-+8D/AViVOCLKD7D6D2D3D4D5D0D1A/D37T1T8T7T6T5T4T3T2......52.53.754.3754.694.844.734.8050A/DA/DVi/VtA/D384.80V123AD.1“0”2T1D7“1”8D/A10000000BVo5V128/255VoViD7“0”(“1”)393D6“1”D/A01000000B2.5VVoViD6“1”(D60)3T3D5“1”……4D0“1”5867T240D/AV0VV0Vi100000005.0V0ViD7=0010000002.5V0ViD6=1011000003.75V0ViD5=1011100004.375V0ViD4=1011110004.69V0ViD3=1011111004.84V0ViD2=0011110104.76V0ViD1=1011110114.80V0ViD0=106464+32=9664+32+16=11264+32+16+8=12064+32+16+8=12064+32+16+8+2=12264+32+16+8+2+1=123A/D41A/D•A/D•A/D•A/D•A/D42A/D()1.2.3.431A/D0000010100110000010100111v2v3v4v5v6v7v-0.5~0.5v0000.5~1.5v0011.5~2.5v0105.5~6.5v1106.5~7.5v111ADC44A/D8A/D810A/D10452ADC46LSB12ADC0LSB14LSB34ADC12LSBADCADC:473A/D48A/D1.A/D2.A/D491.A/Dzzzzz50zADCADCzADCADCzADCADCADCADC51z468101214161s1ms1us1ns52zADCADC0809ADCAD570ADC1210532.A/D1)A/D2)A/D541)A/DA/DA/DA/D(552)A/DA/DA/D56A/D,A/DA/DA/DA/D0~10V,0~5V2A/D57ˆADCˆADCˆADC58PCI/OA15~A0CLKIORT4T1T2T3TwD7~D0INAL,DXIORCPUˆADCPCIORADC00159‰ADCPCI/OA15~A0CLKIOWT4T1T2T3TwD7~D0INAL,DXIORCPUADCPCIOR00160ˆADCPC812ADC12?ADCCPU6112A/DD7~D0IOR80000484D3~D0port_Lport_H11buffer:INAl,port_LMOVbuffer,ALINAL,port_HMOVbuffer+1,AL62A/D8DAC8D/AVREFIOUT2RFBAGNDVCCDGNDDI7~DI0LE2IOUT1LE1CSWR1WR2XFERILE1118‰D/AD/A63‰A/D‰A/DA/DA/DA/D64A/DADCADC0804ADC0809ADC1210CPUPCIOW001A/DA/DOUTDX,AL65ADCAD570AD571AD572A/DCPUADCPCIOW001A/DOUTDX,ALA/D66EOCA/DA/DA/DA/D()67A/DCPUA/D‰‰‰‰A/DA/DEOC68‰A/DA/DA/DYN?A/DCPUA/DA/DCPUA/D69‰PCIOR001A/DINAL,DXA/DEOCCPUCPUA/DCPUA/DCPUA/D70A/DA/DYNNYA/D?71ˆA/DA/DIRQ4PCA/DCPUA/D72()8259AA/DSTI8259ADOSCLIEOIA/DIRETA/D73EOIIRETA/D8259ASTI8259ADOSCLINA/DHLTYHLT74‰A/DA/DREADYCPUA/DREADYCPUINREADYCPUI/OREADY,A/D75T1T2T3TwT4READYA19~A16AD7~AD0IO/MA15~A8ALERDDT/RDENCLKIOMA19~A16S6~S3D7~D0/S6~S3A7~A08088CPU,T3READYREADYTw;READYT476A/DA/DIOCHRDYPCIBMPC/XTIOCHRDY77A9~A0IORCLKD7~D0T1T2T3T4IOCKRDYTwTwTwTwT3IOCKRDYIOCKRDYTwIOCKRDYT478A/DA/DYN?A/DA/DA/DYN?