Punjab Technical University 2005 M.Tech Electronics and Communication Engineering Advanced Microprocessor and Embedded Systems - Question Paper

ADVANCED MICROPROCESSOR AND EMBEDDED SYSTEMS ECE 509/510
M. Tech second Sem May 2k5

Max Marks 100
Time three hours

Note:- Attempt any 5 ques.. All ques. carry equal marks.

1. Explain the architecture of 16-bit microprocessor 8086. Differentiate real-mode and protected mode memory addressing. elaborate various program-invisible registers?

2. (a) discuss various addressing modes obtained in 8086 with examples.
(b) Develop a procedure that reads a key and displays the hexadecimal value of an extended ASCII –coded keyboard character if it is kinds. If a normal character is typed, ignore it.

3. (a) discuss how to interface both RAM and ROM to a microprocessor. elaborate the functions of BHE and BLE in a 16-bit memory interface?
(b) Develop a 32-bit wide memory interface that contains EPROM memory at locations FFFF0000H-FFFFFFFFH.

4. (a) elaborate the different interrupts obtained in 8086? discuss the working of DMA chip in detail with 8086.
(b) Write a program that transfers the ASCII character from AH to the printer via port B. Draw the pin-diagram of programmable keyboard interface.

5. (a) discuss the working of UART in detail for a 16-bit microprocessor.
(b) define and discuss the subsequent instructions with reference to 80386 protected mode:
(i) LIDT
(ii) ARPL
(iii) STR
(iv) VERR

How the virtual address space of 80386 is portioned? discuss.

6. (a) discuss on Analog-to-digital and Digital-to-analog interface to interface a 16-bit microprocessor to the analog world. Take the microprocessor as 8086.
(b) Write a software that records of 1-second passage of speech and plays it back 10 times before recording the next 1-second passage of speech. presume a clock of eight MHz (8086) for the time delay.

7. Explain the functional block diagram of 80186. How the programmable interrupt controller works in 80186? elaborate the hardware and software enhancements in 80186 as compared to 8086?

8. Write short notes on the following:
(a) Memory and IO addressing in 80286
(b) 64-bit wide Pentium memory system.
(c) Polling
(d) 80186 DMA controller.

Earning:   Approval pending.