Microprocessors and Microcontollers - 1 (MPMC) Semester 5 (3 Hours) December 2011

Microprocessors and Microcontollers - 1 (MPMC) Semester 5 (3 Hours) December 2011
1.	(a)	Explain I/O mapped I/O and memory mapped I/O.	05
	(b)	Explain T-states, Machine cycles and instruction cycles.	05
	(c)	Explain internal memory organization of 8051.	05
	(d)	Describe addressing modes of ARM processor.	05
2.	(a)	Explain serial communication in 8085 system.	10
	(b)	Draw the timing diagram of XTHL instruction.	10
3.	(a)	Explain interrupt structure of 8085 microprocessor.	10
	(b)	Write and Assemble Language program to generate square wave of 1 KHz using 8255.	10
4.	(a)	Draw and explain internal memory organization of 8051.	10
	(b)	Draw and explain the formats of interrupt enable SFR and interrupt priority SFR of 8051.	10
5.	(a)	Explain the following instruction of ARM processor : MLA QADD Rd, Rm, Rn SMULL LSL CMP R0, R1	10
	(b)	Draw and explain the architecture of ARM processor.	10
6.	(a)	Write a program to arrange given set of numbers in ascending order.	10
	(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
7.	(a)	Compare power down and idle mode of 8051.	05
	(b)	Compare features of 89C51, 89C53, 89C2051, 89C2052.	05
	(c)	Explain modes of 8259.
	(d)	Write an assemble Language program to turn on and off LED connected to PC5 of port C of 8255 using BSR mode.