Download Model question papers & previous years question papers
|
Posted By: kondapalli Member Level: Gold Posted Date: 08 May 2008
|
2007 Jawaharlal Nehru Technological University B.Tech Electrical and Electronics INTERFACING THROUGH MICROPROCESSORS setno2 Question paper
|
|
|
1. (a) If an absolute address of the type 6A3D9H is given, express it in the form of
CS : IP and explain what are the advantages of the memory segmentation.
Discuss about the various segment registers in 8086.
(b) What are the modes in which the 8086 can be used .How many lines are there
in the multiplexed bus of 8086. Give the pin diagram separately for each mode
of operation. [8+8]
2. (a) What does the PUBLIC directive indicate when placed in a program module?
(b) What does the EXTRN directive indicate when placed in a program module?
(c) Explain how a library file works when it is linked to other files by the linker
program? [4+4+8]
3. (a) What is a procedure ? How is a procedure identified as near or far ?
(b) Explain how the near and far CALL instructions function. [6+10]
4. (a) Draw a typical key board interface with 8255 and write the program to detect
the key clouser
(b) Interface 8255 with 8086 so as to have port A address 00, port B address 02,
port C address 02 and CWR address 03 with a suitable diagram. [8+8]
5. (a) Explain initialization sequence of 8259
(b) What I/O addresses are assigned to the registers of the DMA controller? And
to the DMA Page register
(c) Overview the DMA request / acknowledge handshake sequence ? and what is
the function Of the DMA page register [4+6+6]
6. Explain how eight ON/OFF switches can be interfaced with a microprocessor using
8255 port. Give the hardware and software for it. [16]
7. Draw a block diagram for implementing a data acquisition system of 16 channels
and explain its functioning [16]
8. (a) Describe the functions of the DSR, DTR, RTS, CTS, TXD, and RXD signals
exchanged between a terminal and a modern.
(b) Why is synchronous serial data communication much more efficient than asyn-
chronous communication?
(c) List out various signals in 1 EEE 488 and their purpose and explain.[6+4+6]
Return to question paper search
|
|
|
Submit Previous Years University Question Papers and
make money from adsense revenue sharing program
Are you preparing for a university examination? Download model question papers
and practise before you write the exam.