1 (a)
Explain I/O mapped I/O and memory mapped I/O
5 M
1 (b)
Explain T-state, Machine cycle and Instruction cycles
5 M
1 (c)
Explain internal memory organization of 8051
5 M
1 (d)
Describe addressing modes of ARM processor
5 M
2 (a)
Explain serial communication in 8055 system
10 M
2 (b)
Draw the timing diagram XTHL instruction
10 M
3 (a)
Explain interrupt structure of 8085 microprocessor
10 M
3 (b)
Write an Assembly Language program to generate square wave of 1 kHz using 8255
10 M
4 (a)
Draw and explain internal memory organization of 8051
10 M
4 (b)
Draw and explain the formats of interrupt enable SFR and interrupt priority SFR of 8051
10 M
5 (a)
Explain the following instruction of ARM processor :
MLA
QADD Rd, Rm, Rn
SMULL
LSL
CMP R0, R1
MLA
QADD Rd, Rm, Rn
SMULL
LSL
CMP R0, R1
10 M
5 (b)
Draw and explain the architecture of ARM processor
10 M
6 (a)
Write a program to arrange given set of numbers in ascending order
10 M
6 (b)
Explain 8253 control register format and generate control word to set counter-0 in mode 3 with BCD counting and loading only LSB count
10 M
7 (a)
Compare power down and idle mode of 8051
5 M
7 (b)
Compare features of 89C51, 89C52, 89C2051, 89C2052
5 M
7 (c)
Explain modes of 8259
5 M
7 (d)
Write an Assembly Language program to turn on and off LED connected to PC5 of port C of 8255 using BDR mode
5 M
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