Transcription of 8086 Interfacing Examples - EduTechLearners
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8086 Interfacing Examples - EduTechLearners
8086 Interfacing ExamplesInterfacing To Alphanumeric Displays Togive directionsordata valuestousers, many microprocessor-controlled instrumentsandmachines needtodisplay lettersofthealphabet and where a large amountofdataneedstobedisplayed a CRTisusedtodisplay the only a small amountofdataneedstobedisplayed, simple digit-type displays are often used. There are several technologies usedtomake these digit-orienteddisplaysbutweare discussing only the two major types. These arelight emitting diodes(LED)andliquid-crystal displays(LCD). LCD displays use verylowpower,sothey are often usedinportable,battery- powered instruments. Theydonot emit their own light, theysimply change the reflectionofavailable light. Therefore, foraninstrument thatistobeusedinlow- light conditions, you havetoinclude a light source for LCDsoruse LEDs which emit theirownlight.
Interfacing Analog to Digital Data Converters • In most of the cases, the PIO 8255 is used for interfacing the analog to digital converters with microprocessor. • We have already studied 8255 interfacing with 8086 as an I/O port, in previous section. This …
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