Assignment No. 02
Total Marks: 20
Due Date: 09/Dec/2013
Please read the following instructions carefully before submitting assignment:
To understand the use of ISR and its services.
For any query about the assignment, contact at firstname.lastname@example.org
Question 1: Marks 10
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.
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helpful material in the attachment
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idea for solving assignment
Qno.1 Two modes i) Asynchronous ii) Synchronous (compare these two modes and suggest which one is better)
Qno.2 read page no 112 of handouts
Qno.3 complete steps are given on page 110 of handouts.
if i am wrong then plz tell me
In Q no.1 m not agree with you B FOR FAZAL. Cz according to my knowledge this chip is UART. Also UART has different modes instead of Asynchronous & Synchronous
yup u r ryt we have to tell either which mode is better in serial communication....
ok then plz provide names of different mode...?
yes.u r rite.two modes are synchronous and Asynchronous
Firstly somebody tell me which sort of device are you thinking that is lyk a chip on serial Port??
if you are thinking about Timer device then, Timer is work with synchronous mode. OR If you are thinking about UART device that also work with Asynchronous mode, than how can you say that both modes are available?