STUPIDSID
1 (a)
With the help of a diagram explain the architecture of 8055 microprocessor
8 M
1 (b)
Write an Assembly language program to multiply two 8 bit numbers for execution an 8085 processor
4 M
1 (c)
Write an assembly level program to enable all interrupts of 8051 and set their priority to low
4 M
1 (d)
Describe any four features of ARM processor
4 M
2 (a)
Explain interrupt structure of 8085 with a neat diagram
10 M
2 (b)
With suitable diagrams explain handshake mode of 8155
10 M
3 (a)
Describe addressing modes of ARM processor
10 M
3 (b)
Explain the internal structure of Port 1 and Port 3 of 8051
10 M
4
Design a 8085 based microprocessor system with the following specifications : CPU of 6 MHz, EPROM of 8KB using 4KB chips, RAM of 8KB using 4KB chips, one 8255 PPI at address 20 H and one 8279 at address 30h. Discuss the curcuit and show the memory and I/O map
20 M
5 (a)
Explain ICWs and OCWs of 8259 PIC
10 M
5 (b)
Write a program to convert hexadecimal number to BCD number without using DAA instruction
10 M
6 (a)
Discuss relative merits and demerits of various data transfer techniques
6 M
6 (b)
Write a program to transmit a byte using SOD pin
8 M
6 (c)
Write a program to generate a 1KHz frequency square wave using 825
6 M
Write short notes (any four) :-
7 (a)
Serial communication in 8051
5 M
7 (b)
Memory related instructions of Arm microcontroller
5 M
7 (c)
8251 USART
5 M
7 (d)
Reentrant and recursive subroutines
5 M
7 (e)
8085 flags and their usage
5 M
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