STUPIDSID
Attempt any four
1 (a)
Explain flag register used in 8085 processor.
5 M
1 (b)
Explain what is the need and advantages of memory segmentation in 8086 microprocessor.
5 M
1 (c)
Explain addressing modes of 8086 Microprocessor.
5 M
1 (d)
Write a program to blink bit 4 of part C using BSR mode of 8255.
5 M
1 (e)
Write features of 80486 Microprocessor.
5 M
2
Design an 8086 based system with the following specifications.
i) 8086 working at 6 Mhz at minimum mode.
ii) 32 KB EPROM using 16 KB devices.
iii) 64 KB RAM using 32 KB devices.
iv) 2, 8-bit i/p & 2, 8-bit o/p ports in Memory mapped I/O.
Design system with absolute decoding. Clearly show memory address map and I/O address map. Draw a neat schematic for chip selection logic.
i) 8086 working at 6 Mhz at minimum mode.
ii) 32 KB EPROM using 16 KB devices.
iii) 64 KB RAM using 32 KB devices.
iv) 2, 8-bit i/p & 2, 8-bit o/p ports in Memory mapped I/O.
Design system with absolute decoding. Clearly show memory address map and I/O address map. Draw a neat schematic for chip selection logic.
20 M
3 (a)
Draw & Explain Interrupt structure of 8086 Microprocessor with its IVT.
10 M
3 (b)
Draw & Explain interfacing of DAC 0808 with 8086 Microprocessor using 8255. Write a program to generate square wave.
10 M
4 (a)
Explain interfacing of 8087 co-processor with 8086 Microprocessor.
10 M
4 (b)
Draw timing diagrams of memory read & memory write machine cycles for maximum mode of 8086 Microprocessor.
10 M
5 (a)
Explain MODE 0 and MODE 1 of 8254 Timer/Counter peripheral IC with the help of timing diagram.
10 M
5 (b)
Explain different modes of operation of 8257 DMA controller.
10 M
6 (a)
Write a program for 8086 Microprocessor to multiply two 32-bit numbers (12345678 × 87654321).
10 M
6 (b)
Write a program for 8086 Microprocessor to find out smaller number in an array of 10 numbers.
10 M
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