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

Microprocessors and Microcontollers - 1 (MPMC) Semester 5 (3 Hours) May 2011
1.	Design a 8085 based system as per following specifications:		20
	(a)	CPU at 6 MHz.
	(b)	EPROM of 16 KB using 8 KB chips.
	(c)	RAM of 8 KB using 4 KB chips.
	(d)	One 8255 at address 10H.
	(e)	One 8259 at address 20H.
	Show complete decoding and write a program to send a data 99H on port A of 8255.
2.	(a)	Draw and explain the timer and counters of 8051.	10
	(b)	Draw and explain the interfacing circuit to interface a seven segment LCD display.	10
3.	(a)	Explain the following instruction of 8051 :- (i) LCALL (ii) MOV @R0,iram addr (iii) MUL (iv) CJNE @Rp, #n, radd (v) DJNZ Rn, radd	10
	(b)	Write a program to generate square wave of 500Hz using 8051 Timer. Assume system frequency of 6 MHz.	10
4.	(a)	Draw and explain the architecture of ARM processor.	10
	(b)	Explain Arthmetic, logical  and Branching instructions of ARM processor.	10
5.	(a)	Compare features of 89C51, 89C52, 89C2051 and 89C2051.	10
	(b)	Draw and explain Timing diagram of memory read, memory write instruction of 8085.	10
6.	(a)	Write a program to multiple two 8 bit numbers using 8085 instructions.	10
	(b)	Draw and explain the port structure of all the ports of 8051.	10
7.	Write notes on any four of the following :-		20
	(a)	Serial communication in 8051.
	(b)	Interrupt system of 8085
	(c)	Serial communication in 8085
	(d)	Internal memory organization of 8051
	(e)	Addressing modes of ARM processor.