Here notes for unit-4(DESIGN USING PERIPHERAL DEVICES). The notes consists of following topics which are discussed in detail.
1. Matrix Keyboard design using 8255 using 8085 programs. Designing real time clock, detecting power failure, detecting presence of objects using 8253 - Design of Keyboard and display interfacing using 8279 – Design of digital transmission with modems and telephone lines using 8251 A.
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2. Two mark Question and answer for Unit-4. To download this, please click here
3. ADC- DAC, Interfacing A/D and D/A converters . To download this, please click here
1. Matrix Keyboard design using 8255 using 8085 programs. Designing real time clock, detecting power failure, detecting presence of objects using 8253 - Design of Keyboard and display interfacing using 8279 – Design of digital transmission with modems and telephone lines using 8251 A.
To download this notes. Please click here.
2. Two mark Question and answer for Unit-4. To download this, please click here
3. ADC- DAC, Interfacing A/D and D/A converters . To download this, please click here