Anna University , Chennai
B.E./B.TECH. DEGREE EXAMINATION , NOVEMBER/DECEMBER 2013
Seventh Semester
Electronics and Communication Engineering
Electronics and Communication Engineering
EC2027 Advanced Microprocessor - Important Questions
(Regulation 2008)
Exam Details :
Exam Date : 25/11/2013
Exam Day : Monday
Session : FN (10 am to 1 pm)
Vidyarthiplus.com Important Questions For November/December-2013 Exams
EC2027 Advanced Microprocessor
Part B - 16marks :EC2027 Advanced Microprocessor
1.Draw & discuss the internal block diagram of 8086.
2.What do you mean by pipelined architecture? How is it implemented in 8086? 3.Draw and discuss the read and write cycle timing diagrams of 8086 in minimum and mode.
4.What are the functions of the clock generator IC 8284, in the 8086 systems?
5.Explain all addressing modes of 8086 with example.
6.What do you mean by assembler directives? Explain few of them with suitable example.
7.Explain Data Transfer Function With example.
8.Explain AAA, AAD, AAM, AAS instructions with examples.
9.Sketch and explain the interface of 32K x 16 ROMs using a decoder in: i.Minimum mode. What is the maximum access time of ROMs such that it ii.Does not require wait states when 8086 operates at 8 MHz.
10.Sketch and explain the interface of PPI 8255 to the 8086 microprocessor in:
(a)Minimum mode. Interface 8 LEDs to the port B of 8255. Interface 8 keys to the port A.
(b)Write an 8086-assembly program to read the key status and output on to the 8 LEDs.
11.How 8086 and 8087 instructions stored in programming are executed simultaneously in 8086/8087 systems.
12.Explain how 8087 is interfaced to 8086.
13.List all the mathematical instructions in 8087.
14.Give the Control Word Format of 8255 in I/O and BSR mode.
15.What are the interrupt vector addresses of the following interrupts in the 8086 IVT?
a. INTO
b. NMI
c.INT 20H
d.INT 55H
16.How Harvard architecture is implemented in 8051.
17.Explain all Boolean and Compare instructions.
18.How is an 80386 switched into virtual 8086 mode during task switch.
19.Sketch the interface of a RTC 1307 to the 8051 microcontroller. Write an 8051 assembly program segment to read and write real time into the RTC
- "All the Best"
