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Assignment No. 02 (GRADED) Semester: Fall 2013 CS609: System Programming-Due Date: 9/12/2013

Assignment No. 02
Semester: Fall 2013
System Programming-CS609


Total Marks: 20


Due Date: 09/Dec/2013

Graded Assignment


Please read the following instructions carefully before submitting assignment:


  • You will submit your assignment before or on due date on VU-LMS.
  • Assignment should be completed by your own efforts it should not be copied from internet, handouts or books.
  • You should submit your .doc File via assignment interface at VU-LMS.
  • Assignment sent via Email will not be replied and accepted in any case.
  • If the submitted assignment does not open or file is corrupt, it will not be marked.
  • You will submit solution only in document (.doc or .docx) File.




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Assignment Questions


Question 1:                                                                                                                               Marks 10     

Question 1:

Serial port contains a special chip for input/output which can communicate in two different modes. Explore and describe these modes and which one is better in the serial communication.

Note: Solutions containing the image of any text will reward zero marks.

Question 2:                                                                                                                               Marks 04     

Data is written at UART internal Transmitter Holding Register. What do you think is the role of Transmit Shift Register and TxD line during this write operation?


Question 3:                                                                                                                               Marks 06     

DTE wants to communicate with the DCE using RS232C Protocol. How does this communication start and end?  Identify the steps involved from the starting signal to ending signal between DTE and DCE device.



Views: 5406


Replies to This Discussion

I think these are half duplex mode and full duplex mode.Am I right?

please any one add the solution file

  1. AOA FRNDS 1ST clrify what is tha special chip that serial port is used for input output

Yup its full duplex n  half duplex

asif(MCS FINAL) I didn't found something very special in this file. As there's not clearly mention that which are the two modes of UART.  Whether:

  • Synchronous or Asynchronous
  • Mode 0 or Mode 1
  • General Mode or DMA Mode 
  • Or something else

One more point which came to my mind is that UART communicates in ways i.e. taking input and transforms it through the serial port. May we call that two communication the two modes?

plz any one here to discuss? I'm commenting my observations/confusions/views & serach results but no one is activaly taking part in the discussion 

AOA Guys....

I found a chip which contain a two different modes for serial communication that is 

USART(Universal Synchronous/Asynchronous receiver Transmitter)

one is Synchronous

Second is Asynchronous

I am right? plz tell sooon....

problem solve I think this file


chapter no. 15 comport read krien then above given file ko...same point is that full duplex communication...

and USART also Full duplex communication.....

wsalam.. not confirmed but i think you are right...

If this is the solution then which mode is better for serial communication?

getting error after downloading your pdf attached file.

3rd q a koi sehi ans do plzzzzzzzzzzzzzz

Q1 and Q2 ka answer kya hai sam?


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