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PDF AD1210 Data sheet ( Hoja de datos )
| Número de pieza | AD1210 | |
| Descripción | Advanced Industrial Control boards turn your IBM PCDff/AT | |
| Fabricantes | Real Time Devices | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de AD1210 (archivo pdf) en la parte inferior de esta página. Total 30 Páginas | ||
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ADIZIO/ADAT21O
UsertsManual
RealTime Devices,Inc.
"AccessingtheAnalogWorld'*
ISO9001 and AS9100 Certified
PublicationNo. 1210-9409
1 page  
CHAPTER4 - BOARD OPERATIONAND PROGRAMMING
BA + 0: ReadStatus/StarCt onverr(Read/lVrite)
BA + 1: ReadAID Data/UpdateDAC Outputs(ReadAVrite.)..................
BA+2:
BA + 3: Scan/Burst(Read/Write)
BA + 4: PPI PortA - Digital VO (Read/Wrire.)...............
BA + 5: PPI PortB - Channel/BoarFdunctionsSelect(Read/Write.).............
BA + 6: PPI PortC - Digital VO (Read/Write.)..............
BA + 7: 8255PPI ConrrolWord (WriteOnly)...........
BA + 8: 8254Timer/Counter0 (Read/lVrite;
BA + 9: 8254Timer/CounreIr (Read/Write.)................
BA + l0: 8254Timer/Counre2r @ead/lVrite.)................
BA + 1l: 8254ControlWord (WriteOnly) ...........
BA + 12: A./DDataLSB/D/A ConverterI LSB (Read/lVrite)..............
BA + 13: A/D DataMSB/D/A Converter1 MSB (Read/Write)
BA + 14: ClearIRQ Status/D/AConverter2 LSB (Read/Write)
BA + 15: ClearDMA Done Flag/D/A Converrer2 MSB (Read/Write)
P r o g r a m m i n gt h e A D 1 2 I 0 / A D A | 2 1 0
ClearingandSettingBits in a Porr.............
.............4.I
.........4_4
.............4_4
............4_5
...............4_5
.........................4_5
.................4_6
.......................4_6
...............4_g
...................4_g
.................4_g
.......4_g
.................4_9
.....,..4-g
......4-g
.................4_g
.........4_10
..................4_10
EnablingandDisablingthe ExternalTrigger
EnablingandDisablingInrerruprs
Startingan A,/DConversion
Monitoring ConversionStatus(DMA Done or End-of-Convert)...............
R e a d i n gt h e C o n v e r t e dD a t a
ProgrammingthePacerClock ..........
8 2 5 9P r o g r a m m a b l Ien t e r r u p tC o n t r o l l e r
Intemrpt Mask Register(IMR)
End-of-Intemrpt(EOI) Command
WhatExactlyHappensWhenan IntemrptOccurs?
Using Interruptsin Your Programs
Writing an InterruptServiceRoutine0SR)............
Saving the StartupInterrupt Mask Register(IMR) andInterrupt Vector
Restoringthe StartupIMR andInterruptVector
C o m m o nI n t e r r u p tM i s t a k e s
Choosinga DMA Channel
Allocatinga DMA Buffer
Calculatingthe Pageand Offset of a Buffer
Settingthe DMA PageRegister...................
D M A S i n g l eM a s kR e g i s t e r . . . . . . . . . . . . . . . . . . .
Programmingthe DMA Controller
Programmingthe Board for DMA
..........4-13
......4-13
................4-15
.......4-15
...............4-16
.......................4-17
.................4-lg
...........4-lg
......4-18
.....................4-18
.....4-19
......................4-19
..........4-2O
.....4-21
...............4-21
..................4-Zl
...................4-Zz
..........-.4-22
............4-24
...........-......4-24
.....4-25
......4-25
5 Page 
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet AD1210.PDF ] | |
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