Maharashi Dayanand University (MDU) 2008 B.E Information Technology MICROPROCESSOR AND INTERFACING - Question Paper

MICROPROCESSOR AND INTERFACING
EE-309-E


QES1 define the purpose of subsequent in 8085
(1) Program counter
(2) Stack pointer
(3) Accumlator ALU and flags
(4) Serial I/O control
(5) Instruction Register


2 define the working of interrupt I/O control in 8085.

3 Write a program in Assembly language of 8085 to set sign flag, zero flag, parity flag and reset auxillary carry and carry flag using stack operation .

4 define different addressing of 8085 with suitable examples.
5 define the purpose BIU and EU in 8086.
6 define the purpose of segment and offset address in 8086. calculate physical address if DS=46 A 9h and offset address in BX is 6A9Bh.
7 What is program relocation ? How it is supported by segment ed addressing ?
8 Write a program in assembly language of 8086 which reads a character and
(1) prints corresponding capital alphabet if it is small.
(2) prints corresponding capital alphabet if it is capital.
(3) otherwise prints it as it is .

9 Descrive the purpose of subsequent pins in 8086.
(1) BHE and A (2) NMI,INTR,INTA (3) S2,S1,S0 (4) TEST

10 Write the purpose of a subsequent assembly language directives
(1) dosseg (2) db (3) dw (4) model

11 Descrive how 8285 can be configured using control regsister . define the purpose of different bits in control regsister.

12 Descrive the handshake singls for input/output port in 8085.

13 Descrive the DMA process and discuss the working of 8237 DMA processor.

14 discuss the working of 8259 programmable interrut controller.

15 Write the shorts notes on subsequent
(a) Address/data multiplexing
(b) 8284 clock generator
(c) Trap,over flow and direction flag in 8086.

Earning:   Approval pending.